{ "id": "greece-vs-turkey", "title": "Greece vs Turkey Yacht Charter: Price, Weather, Licence", "question": "Greece or Turkey: which is better for a yacht or catamaran charter?", "answer": "Greece and Turkey cost about the same over the year (€6,319 and €6,332 on average per week, our arithmetic on 12 Knots' prices), but Greece is cheaper in October to May and Turkey is cheaper in June to September (updated October 2026). By our rules the best-weather months are June to October in Greece and June to September in Turkey; on licences both are \"Licence or recognised certificate needed\" in our classification, and both score within 5 points for families on our method.", "answer_markdown": "Greece and Turkey cost about the same over the year (€6,319 and €6,332 on average per week, our arithmetic on 12 Knots' prices), but Greece is cheaper in October to May and Turkey is cheaper in June to September (updated October 2026). By our rules the best-weather months are June to October in Greece and June to September in Turkey; on licences both are \"Licence or recognised certificate needed\" in our classification, and both score within 5 points for families on our method.\n\nSources: ([12 Knots](https://12knots.com/en/yacht-charter/destinations/mediterranean-sea/greece/catamaran-charter/), checked 27 Oct 2026); ([12 Knots](https://12knots.com/en/yacht-charter/destinations/mediterranean-sea/turkey/catamaran-charter/), checked 28 Oct 2026); ([NASA POWER](https://power.larc.nasa.gov/docs/services/api/temporal/monthly/), checked 28 Oct 2026).", "checked": "2026-10-29", "sides": [ { "key": "greece", "name": "Greece", "slug": "greece", "canonical_url": "https://catamaranindex.com/greece/", "book_url": "https://catamaranindex.com/go/samboat?dest=greece&pos=api" }, { "key": "turkey", "name": "Turkey", "slug": "turkey", "canonical_url": "https://catamaranindex.com/turkey/", "book_url": "https://catamaranindex.com/go/samboat?dest=turkey&pos=api" } ], "cheaper_months": { "greece": 8, "turkey": 4, "same": 0 }, "verdicts": [ { "id": "V1", "traveller": "On a budget, flexible dates", "pick": "tie", "why": "Mean of 12 Knots' monthly prices: €6,319 in Greece and €6,332 in Turkey a week (0.2% apart, our arithmetic); cheapest month March (€4,527) in Greece and March (€5,044) in Turkey.", "rule": "On a budget, flexible dates: the side with the lower 12-month mean of 12 Knots' average weekly asking prices (our arithmetic). A gap under 5% of the lower mean is \"about the same\" (our choice).", "sources": [ "k12_greece", "k12_turkey" ] }, { "id": "V2", "traveller": "Fixed dates", "pick": null, "why": "Cheaper by month (12 Knots, our arithmetic): Greece: October to May; Turkey: June to September.", "rule": "Fixed dates: no single pick. We list the months in which each side has the lower 12 Knots price (our arithmetic).", "sources": [ "k12_greece", "k12_turkey" ] }, { "id": "V3", "traveller": "Summer holidays (July and August)", "pick": "turkey", "why": "Mean of the July and August prices: €9,437 in Greece and €7,717 in Turkey (22.3% apart, our arithmetic).", "rule": "Summer holidays: the side with the lower mean of the July and August prices; a gap under 5% of the lower figure is \"about the same\" (our choice).", "sources": [ "k12_greece", "k12_turkey" ] }, { "id": "V4", "traveller": "Christmas and New Year (December)", "pick": "tie", "why": "December: €5,239 in Greece and €5,285 in Turkey (0.9% apart, our arithmetic).", "rule": "Christmas and New Year: the side with the lower December price; a gap under 5% is \"about the same\".", "sources": [ "k12_greece", "k12_turkey" ] }, { "id": "V5", "traveller": "Families with children", "pick": "tie", "why": "Best-month family score on our method: 100 in Greece (July to September) and 96 in Turkey (August to October) out of 100; within 5 points is a tie.", "rule": "Families with children: the higher best-month family score on our published method (calm wind, short hops, warm sea, season); scores within 5 points are a tie (our choice). No pick where a score is partial (Thailand) or both sides share one dataset (Mallorca and Ibiza).", "sources": [] }, { "id": "V6", "traveller": "First charter, no sailing licence", "pick": "tie", "why": "Greece: Licence required (ICC, Coastal Skipper, ASA 104, IPC…); Day Skipper may be refused, confirm with operator. Turkey: Required; ICC recommended. Same rule in both. Beginner scores on our method: 100 in Greece and 94 in Turkey out of 100. Operators can still ask for more than the law, so confirm before booking.", "rule": "First charter without a sailing licence: the side whose licence regime is lower in the order none, résumé, not confirmed, licence required (our classification of the sources); the same regime is a tie. Beginner scores on our method are printed beside it.", "sources": [] }, { "id": "V7", "traveller": "Wants steady wind, or wants calm", "pick": null, "why": "Force 6 days per year (22 kn or more, NASA POWER, our calculation): 2.9 at Lefkada (Greece) and 4.2 at Göcek (Turkey); about the same (within 2 days). Other points: Greece, Cyclades (Syros): 63.0 days. Windiest months by mean wind: January, February and November in Greece, January, February and March in Turkey.", "rule": "Steady wind or calm: no single pick. We print each side's force 6 days per year (22 kn or more, NASA POWER, 2016–2025, our calculation) and which side has more; a gap within 2 days is a tie (our choice).", "sources": [ "nasa_power_monthly" ] }, { "id": "V8", "traveller": "Warm water, snorkelling", "pick": "turkey", "why": "Months at 24 °C or more (NOAA mean sea temperature): 3 (July to September) in Greece and 4 (July to October) in Turkey.", "rule": "Warm water, snorkelling: the side with more months at 24 °C or more by NOAA's mean sea temperature at our reference point; equal counts are a tie.", "sources": [] }, { "id": "V9", "traveller": "Seasonal weather risk", "pick": null, "why": "Greece: The meltemi (the Etesian winds) is a persistent summer northerly over the Aegean, and its outbreaks are most frequent from mid-July to mid-August (peer-reviewed study, Tyrlis & Lelieveld 2013); at our Syros point in the Cyclades, days reaching force 6 (22 kn or more) average 4.9 in July and 4.7 in August, against 0.0 and 0.0 at Lefkada in the Ionian (our calculation from NASA POWER, 2016–2025). Turkey: We have no official source naming a seasonal storm or wind hazard for Turkey; at our Göcek point, days reaching force 6 average 1.3 in January and 0.0 in July (our calculation from NASA POWER, 2016–2025).", "rule": "Seasonal weather risk: no pick. We quote each side's weather-risk answer and link its page.", "sources": [ "wr_etesians_tyrlis2013" ] }, { "id": "V10", "traveller": "Fishing from the boat", "pick": null, "why": "Greece: No licence, but only Greek-flagged boats may fish. Foreign-flagged charter yachts may not fish in Greek waters. The Hellenic Coast Guard says only Greek-flagged vessels may fish there. Before you book, ask the charter company which flag the yacht flies. Turkey: From a boat only (avlanma fişi)", "rule": "Fishing from the boat: no pick. We quote each side's licence rule and any warning from our fishing pages.", "sources": [] } ], "months": [ { "month": 1, "name": "January", "a_eur": 4561, "b_eur": 5083, "cheaper": "greece", "diff_eur": 522, "diff_pct": 11.4 }, { "month": 2, "name": "February", "a_eur": 4545, "b_eur": 5109, "cheaper": "greece", "diff_eur": 564, "diff_pct": 12.4 }, { "month": 3, "name": "March", "a_eur": 4527, "b_eur": 5044, "cheaper": "greece", "diff_eur": 517, "diff_pct": 11.4 }, { "month": 4, "name": "April", "a_eur": 4619, "b_eur": 5528, "cheaper": "greece", "diff_eur": 909, "diff_pct": 19.7 }, { "month": 5, "name": "May", "a_eur": 6435, "b_eur": 6636, "cheaper": "greece", "diff_eur": 201, "diff_pct": 3.1 }, { "month": 6, "name": "June", "a_eur": 8402, "b_eur": 7331, "cheaper": "turkey", "diff_eur": 1071, "diff_pct": 14.6 }, { "month": 7, "name": "July", "a_eur": 9336, "b_eur": 7582, "cheaper": "turkey", "diff_eur": 1754, "diff_pct": 23.1 }, { "month": 8, "name": "August", "a_eur": 9538, "b_eur": 7851, "cheaper": "turkey", "diff_eur": 1687, "diff_pct": 21.5 }, { "month": 9, "name": "September", "a_eur": 8098, "b_eur": 8075, "cheaper": "turkey", "diff_eur": 23, "diff_pct": 0.3 }, { "month": 10, "name": "October", "a_eur": 5414, "b_eur": 7003, "cheaper": "greece", "diff_eur": 1589, "diff_pct": 29.3 }, { "month": 11, "name": "November", "a_eur": 5114, "b_eur": 5452, "cheaper": "greece", "diff_eur": 338, "diff_pct": 6.6 }, { "month": 12, "name": "December", "a_eur": 5239, "b_eur": 5285, "cheaper": "greece", "diff_eur": 46, "diff_pct": 0.9 } ], "table": [ { "label": "Average weekly price, cheapest–priciest month", "a": "€4,527–9,538", "b": "€5,044–8,075", "source_ids": [ "k12_greece", "k12_turkey" ], "derived": null }, { "label": "Cheapest month", "a": "March (€4,527)", "b": "March (€5,044)", "source_ids": [ "k12_greece", "k12_turkey" ], "derived": null }, { "label": "Priciest month", "a": "August (€9,538)", "b": "September (€8,075)", "source_ids": [ "k12_greece", "k12_turkey" ], "derived": null }, { "label": "12-month mean", "a": "€6,319", "b": "€6,332", "source_ids": [ "k12_greece", "k12_turkey" ], "derived": "our arithmetic" }, { "label": "Boats in 12 Knots' sample (listed / unique)", "a": "1539 / 1398", "b": "292 / 216", "source_ids": [ "k12_greece", "k12_turkey" ], "derived": null }, { "label": "True cost per person, 6 people, cheapest month", "a": "€1,071–1,211 (March)", "b": "€1,151–1,291 (March)", "source_ids": [ "k12_greece", "k12_turkey", "globesailor_costs" ], "derived": "our arithmetic" }, { "label": "True cost per person, 6 people, priciest month", "a": "€1,907–2,047 (August)", "b": "€1,656–1,796 (September)", "source_ids": [ "k12_greece", "k12_turkey", "globesailor_costs" ], "derived": "our arithmetic" }, { "label": "Skipper per day", "a": "€195", "b": "€170", "source_ids": [ "globesailor_costs" ], "derived": null }, { "label": "Security deposit, catamaran", "a": "€3,500", "b": "€3,500", "source_ids": [ "globesailor_costs" ], "derived": null }, { "label": "Best-value months (3 cheapest)", "a": "January to March", "b": "January to March", "source_ids": [ "k12_greece", "k12_turkey" ], "derived": "our rule" }, { "label": "Best-weather months", "a": "June to October", "b": "June to September", "source_ids": [ "nasa_power_monthly", "noaa_season", "tahiti_tourisme" ], "derived": "our rule" }, { "label": "Sweet spot", "a": "September and October", "b": "June", "source_ids": [ "k12_greece", "k12_turkey", "nasa_power_monthly" ], "derived": "our rule" }, { "label": "Months to avoid", "a": "June to August on price", "b": "July to September on price", "source_ids": [ "k12_greece", "k12_turkey", "noaa_season", "tahiti_tourisme" ], "derived": "our rule" }, { "label": "Mean air temperature, warmest month (°C)", "a": "28 °C (August, Lefkada)", "b": "30 °C (July, Göcek)", "source_ids": [ "nasa_power_monthly" ], "derived": "our calculation" }, { "label": "Force 6 days per year", "a": "2.9 days (Lefkada)", "b": "4.2 days (Göcek)", "source_ids": [ "wr_nasa_power_daily" ], "derived": "our calculation" }, { "label": "Warm-sea months (24 °C or more)", "a": "3 (July to September)", "b": "4 (July to October)", "source_ids": [], "derived": "NOAA mean sea temperature, our count" }, { "label": "Seasonal hazard", "a": "Meltemi peak July and August", "b": "none verified", "source_ids": [ "noaa_season", "wr_th_ldd_climate", "wr_pf_meteofrance_climat" ], "derived": null }, { "label": "Licence", "a": "Licence required (ICC, Coastal Skipper, ASA 104, IPC…); Day Skipper may be refused, confirm with operator", "b": "Required; ICC recommended", "source_ids": [], "derived": "our classification of the sources" }, { "label": "Fishing licence for guests", "a": "No licence, but only Greek-flagged boats may fish", "b": "From a boat only (avlanma fişi)", "source_ids": [], "derived": null }, { "label": "Family score, best month", "a": "100 (July to September)", "b": "96 (August to October)", "source_ids": [], "derived": "our method" }, { "label": "Beginner score, best month", "a": "100 (May to August)", "b": "94 (April to June and August to November)", "source_ids": [], "derived": "our method" }, { "label": "Average hop on our 7-day route (nm)", "a": "10.1 nm", "b": "12.4 nm", "source_ids": [], "derived": "our calculation" }, { "label": "Longest leg (nm)", "a": "23.0 nm (Kefalonia (Fiskardo) → Lefkada)", "b": "30.1 nm (Gemiler Island → Ekincik)", "source_ids": [], "derived": "our calculation" }, { "label": "Nearest airport to base, straight line", "a": "6.3 nm / 11.7 km (Aktion Airport (Preveza/Lefkada))", "b": "7.9 nm / 14.7 km (Dalaman Airport)", "source_ids": [ "cmp_osm_nominatim" ], "derived": "our choice of airport; our calculation" } ], "weather": { "a": { "place": "Lefkada", "elev_m": 138.13, "temp_c": [ 10.5, 11.4, 12.8, 15.7, 19.2, 24.3, 27.1, 27.7, 24.1, 20, 16.2, 12.5 ], "wind_kn": [ 8.1, 7.9, 7.2, 6.5, 5.9, 5.5, 6, 5.5, 6.1, 6.4, 8.1, 7.5 ], "sea_c": [ 15.9, 15.1, 15, 16.2, 18.9, 22.3, 24.5, 25.9, 24.9, 22.8, 20.4, 17.8 ], "force6_days": [ 0.7, 0.3, 0.6, 0.2, 0, 0, 0, 0, 0, 0.1, 0.8, 0.2 ], "force6_days_annual": 2.9, "same_point_as_ibiza": false }, "b": { "place": "Göcek", "elev_m": 545.98, "temp_c": [ 6.8, 7.8, 9.9, 14.5, 19.5, 25.4, 29.7, 29.2, 25, 19.1, 13.7, 9 ], "wind_kn": [ 7.1, 6.9, 6.7, 6.2, 6, 6, 6.6, 6, 5.9, 5.6, 5.9, 6.3 ], "sea_c": [ 18, 17.1, 17, 17.7, 19.9, 22.7, 25.5, 27.3, 26.4, 24.3, 21.9, 19.6 ], "force6_days": [ 1.3, 0.7, 0.8, 0.2, 0.2, 0.2, 0, 0, 0.1, 0, 0.3, 0.4 ], "force6_days_annual": 4.2, "same_point_as_ibiza": false } }, "distances": { "a": [ { "route": "greece", "label": "the Ionian from Lefkada", "total_nm": 60.6, "average_hop_nm": 10.1, "longest_leg": "Kefalonia (Fiskardo) → Lefkada", "longest_leg_nm": 23, "airport_to_base": { "label": "Nearest airport to base (our choice)", "from": "Aktion Airport (Preveza/Lefkada)", "to": "Lefkada", "nm": 6.3, "km": 11.7 }, "second_airport_line": null }, { "route": "greece-cyclades", "label": "the Cyclades from Lavrio", "total_nm": 145.1, "average_hop_nm": 20.7, "longest_leg": "Syros (Finikas) → Lavrio", "longest_leg_nm": 42.8, "airport_to_base": { "label": "Nearest airport to base (our choice)", "from": "Athens Airport", "to": "Lavrio", "nm": 15.4, "km": 28.4 }, "second_airport_line": null } ], "b": [ { "route": "turkey", "label": "from Göcek", "total_nm": 74.2, "average_hop_nm": 12.4, "longest_leg": "Gemiler Island → Ekincik", "longest_leg_nm": 30.1, "airport_to_base": { "label": "Nearest airport to base (our choice)", "from": "Dalaman Airport", "to": "Göcek", "nm": 7.9, "km": 14.7 }, "second_airport_line": null } ], "extra_lines": [ { "label": "Greece: the Ionian from Lefkada", "from": "Aktion Airport (Preveza/Lefkada)", "to": "Lefkada", "nm": 6.3, "km": 11.7 }, { "label": "Greece: the Cyclades from Lavrio", "from": "Athens Airport", "to": "Lavrio", "nm": 15.4, "km": 28.4 }, { "label": "Turkey: from Göcek", "from": "Dalaman Airport", "to": "Göcek", "nm": 7.9, "km": 14.7 } ], "method": "Great-circle distance between OpenStreetMap (Nominatim) coordinates, Earth radius 6,371.0088 km, 1 nm = 1.852 km. Straight lines: the sailed distance is longer." }, "licence": { "a": { "regime": "required", "short": "Licence required (ICC, Coastal Skipper, ASA 104, IPC…); Day Skipper may be refused, confirm with operator", "answer": "Yes in practice: charter companies and the RYA say the skipper of a bareboat in Greece needs a recognised sailing licence and recommend the ICC, but we could not find the Greek legal text, so this rests on secondary sources. Anchor lists the ICC, RYA Coastal Skipper or Yachtmaster (practical), ASA 104, SLC and IPC as accepted and says Greek port police no longer accept the RYA Day Skipper, although its own summary still lists Day Skipper, so confirm with your operator." }, "b": { "regime": "required", "short": "Required; ICC recommended", "answer": "Yes: Turkey's Maritime Tourism Regulation says a Turkish-flag yacht in a licensed charter business, with no more than 12 passengers, can be chartered without crew only if at least one renter holds a licence of sufficient standard, but the regulation does not say which foreign certificates count. The RYA lists evidence of competence as required in Turkey and recommends the ICC, so ask the operator what it accepts." } }, "true_cost": { "a": { "complete": true, "cheapest_month": { "month": "March", "per_person_eur": { "min": 1071.3333333333333, "max": 1211.3333333333333 } }, "priciest_month": { "month": "August", "per_person_eur": { "min": 1906.5, "max": 2046.5 } }, "not_verified": [ "Whether TEPAI is passed on to charter guests, and its current rates.", "Port fees in municipal harbours." ] }, "b": { "complete": true, "cheapest_month": { "month": "March", "per_person_eur": { "min": 1150.6666666666667, "max": 1290.6666666666667 } }, "priciest_month": { "month": "September", "per_person_eur": { "min": 1655.8333333333333, "max": 1795.8333333333333 } }, "not_verified": [ "Transit log fees and any guest tax in Turkey." ] }, "any_partial": false }, "constants": { "tie_pct": 5, "tie_score": 5, "tie_f6_days": 2 }, "method": { "V1": "On a budget, flexible dates: the side with the lower 12-month mean of 12 Knots' average weekly asking prices (our arithmetic). A gap under 5% of the lower mean is \"about the same\" (our choice).", "V2": "Fixed dates: no single pick. We list the months in which each side has the lower 12 Knots price (our arithmetic).", "V3": "Summer holidays: the side with the lower mean of the July and August prices; a gap under 5% of the lower figure is \"about the same\" (our choice).", "V4": "Christmas and New Year: the side with the lower December price; a gap under 5% is \"about the same\".", "V5": "Families with children: the higher best-month family score on our published method (calm wind, short hops, warm sea, season); scores within 5 points are a tie (our choice). No pick where a score is partial (Thailand) or both sides share one dataset (Mallorca and Ibiza).", "V6": "First charter without a sailing licence: the side whose licence regime is lower in the order none, résumé, not confirmed, licence required (our classification of the sources); the same regime is a tie. Beginner scores on our method are printed beside it.", "V7": "Steady wind or calm: no single pick. We print each side's force 6 days per year (22 kn or more, NASA POWER, 2016–2025, our calculation) and which side has more; a gap within 2 days is a tie (our choice).", "V8": "Warm water, snorkelling: the side with more months at 24 °C or more by NOAA's mean sea temperature at our reference point; equal counts are a tie.", "V9": "Seasonal weather risk: no pick. We quote each side's weather-risk answer and link its page.", "V10": "Fishing from the boat: no pick. We quote each side's licence rule and any warning from our fishing pages.", "airport": "Nearest airport to the base is our choice (not the airport with the best connections). Distances are straight lines between OpenStreetMap coordinates, our calculation; the road or ferry trip is longer. We make no claim about flights.", "truecost": "True cost per person = (12 Knots charter fee + fuel + 6 marina nights + mandatory extras + food at €20–40 per person per day) ÷ 6 people (our arithmetic, The Globe Sailor's September 2026 figures). Where a side has no Globe Sailor row (BVI, Bahamas, Thailand) the total is partial and the like-for-like row uses charter + food only for both sides.", "labels": "Verdicts are our rules applied to the data, not a ranking by any source. Means, differences, per-person totals, distances and verdicts are our arithmetic or our rules." }, "not_verified": [ "The Greek cruising fee on leisure boats (TEPAH) and whether charter guests pay it: the tax authority's pages returned an error to us, so we give no rate.", "Gulet prices: not verified yet.", "Transit log fees and any guest tax in Turkey.", "Flights and connections: we make no claim about them. The airport is our choice of the nearest one to the base." ], "sources": [ { "id": "k12_greece", "name": "12 Knots", "title": "Catamaran charter in Greece", "url": "https://12knots.com/en/yacht-charter/destinations/mediterranean-sea/greece/catamaran-charter/", "checked": "2026-10-27", "note": "Page states \"Updated October 2026\"." }, { "id": "k12_turkey", "name": "12 Knots", "title": "Catamaran charter in Turkey", "url": "https://12knots.com/en/yacht-charter/destinations/mediterranean-sea/turkey/catamaran-charter/", "checked": "2026-10-28", "note": "Page states \"Updated October 2026\"." }, { "id": "nasa_power_monthly", "name": "NASA POWER", "title": "Prediction Of Worldwide Energy Resources: Monthly API (T2M, WS10M)", "url": "https://power.larc.nasa.gov/docs/services/api/temporal/monthly/", "checked": "2026-10-28", "note": "Monthly point data for 2016–2025 pulled on 28 Oct 2026 with scripts/fetch-weather.mjs (API v2.10.0, community RE, parameters T2M = temperature at 2 m in °C and WS10M = wind speed at 10 m in m/s; meteorological grid ½° × ⅝° per https://power.larc.nasa.gov/docs/methodology/). One request per reference point, in the form https://power.larc.nasa.gov/api/temporal/monthly/point?parameters=T2M,WS10M&community=RE&longitude=&latitude=&start=2016&end=2025&format=JSON (coordinates in src/data/weather.ts). Route points for the Dubrovnik and Cyclades itineraries are in src/data/weather-routes.ts (scripts/fetch-route-weather.mjs, pulled 29 Oct 2026). Credit: https://power.larc.nasa.gov/docs/referencing/ . The pages we opened did not state a licence; NASA data is described to us as free for any use. Palma (Mallorca) reference point for the Mallorca vs Ibiza comparison in src/data/weather-routes.ts (scripts/fetch-route-weather.mjs, pulled 29 Oct 2026)." }, { "id": "wr_etesians_tyrlis2013", "name": "Tyrlis & Lelieveld, Journal of the Atmospheric Sciences", "title": "Climatology and dynamics of the summer Etesian winds over the eastern Mediterranean (2013, 70(11): 3374–3396)", "url": "https://doi.org/10.1175/JAS-D-13-035.1", "checked": "2026-10-29", "note": "Peer-reviewed study, not a government source. Abstract read via Crossref; ERA-40 reanalysis.", "tier": "reference" }, { "id": "globesailor_costs", "name": "The Globe Sailor", "title": "What it really costs to charter a yacht", "url": "https://www.theglobesailor.com/blog/what-it-really-costs-to-charter-a-yacht", "checked": "2026-10-28", "note": "Published 19 June 2026; table prices recorded September 2026 (boats under 5 years old, 4 cabins / 8 people). The tables do not state units for every column." }, { "id": "cmp_osm_nominatim", "name": "OpenStreetMap (Nominatim geocoder)", "title": "Nominatim search API: coordinates of airports and the Palma reference point", "url": "https://nominatim.openstreetmap.org/", "checked": "2026-10-29", "note": "Coordinates © OpenStreetMap contributors, available under the Open Database Licence (https://www.openstreetmap.org/copyright). Queries in src/data/compare-points.json, run by scripts/fetch-compare-coords.mjs. Community map data, not an official gazetteer. Straight-line distances are our calculation.", "tier": "secondary" }, { "id": "wr_nasa_power_daily", "name": "NASA POWER", "title": "Prediction Of Worldwide Energy Resources: Daily API (WS10M_MAX, WD10M) and Monthly API (PRECTOTCORR)", "url": "https://power.larc.nasa.gov/docs/services/api/temporal/daily/", "checked": "2026-10-29", "note": "Pulled with scripts/fetch-weather-daily.mjs for 2016–2025 at our 10 reference points and 2 route points. WS10M_MAX is the highest hourly mean of the day in a ½° × ⅝° grid cell, not a gust. Strong-wind day counts and rainfall means are our calculation.", "tier": "official" }, { "id": "su_metoffice_beaufort", "name": "Met Office", "title": "Beaufort wind force scale", "url": "https://weather.metoffice.gov.uk/guides/coast-and-sea/beaufort-scale", "checked": "2026-10-29", "note": "UK national weather service. No page date. Force 2 (light breeze) 4–6 kn; force 4 (moderate breeze) 11–16 kn. We use 6 and 16 kn as the anchors of our wind score. Force 5 (fresh breeze) 17–21 kn; force 6 (strong breeze) 22–27 kn. We use 17 and 22 kn as the thresholds of our strong-wind day counts.", "tier": "official" }, { "id": "anchor_licences", "name": "Anchor (formerly Helm)", "title": "What qualifications do I need to charter a yacht?", "url": "https://www.anchor.yt/article/bareboat-licences", "checked": "2026-10-27", "note": "Updated 22 July 2026. Charter-industry article, not an official source.", "tier": "secondary" }, { "id": "lic_island_sailing", "name": "Island Sailing", "title": "Yacht charter Greece: qualifications", "url": "https://www.island-sailing.com/yacht-charter-greece/yacht-charter-qualifications/", "checked": "2026-10-28", "note": "Charter operator page (footer © 2020, mentions 2026 & 2027 seasons). Not an official source.", "tier": "secondary" }, { "id": "rya_icc", "name": "RYA", "title": "Evidence of competence abroad (ICC)", "url": "https://www.rya.org.uk/knowledge/abroad/icc/evidence-of-competence-abroad", "checked": "2026-10-28", "note": "No page date shown. The RYA is the UK body that issues the ICC; it is a reference for acceptance by country, not a destination authority.", "tier": "reference" }, { "id": "moorings_levels", "name": "The Moorings", "title": "Experience guide: Level 3 sail", "url": "https://www.moorings.com/experience-guide/level-3-sail", "checked": "2026-10-27", "note": "Charter operator guide, not an official source.", "tier": "secondary" }, { "id": "lic_tr_dty", "name": "Turkish Official Legislation Information System (mevzuat.gov.tr)", "title": "Deniz Turizmi Yönetmeliği (Maritime Tourism Regulation), art. 34, consolidated text", "url": "https://www.mevzuat.gov.tr/MevzuatMetin/21.5.200915212.pdf", "checked": "2026-10-28", "note": "Official consolidated text in Turkish (Resmî Gazete 24/7/2009, No. 27298), showing amendments up to RG 19/10/2022. Art. 34 concerns bareboat charter of Turkish-flag yachts; art. 35 on foreign-flag vessels was repealed in 2022.", "tier": "official" } ], "canonical_url": "https://catamaranindex.com/compare/greece-vs-turkey/", "markdown_url": "https://catamaranindex.com/compare/greece-vs-turkey.md", "api_url": "https://catamaranindex.com/api/compare/greece-vs-turkey.json", "derived": "Means, differences, per-person totals, distances and verdicts are our arithmetic or our rules; weather values are our calculation.", "weather_attribution": "Weather values are our calculation from NASA POWER data (https://power.larc.nasa.gov). Credit: data obtained from NASA Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) Project, funded through the NASA Earth Science Division.", "coords_licence": "Coordinates © OpenStreetMap contributors, ODbL (https://www.openstreetmap.org/copyright).", "attribution": "Cite \"Catamaran Index\" with a link to the canonical_url of the page the figure comes from, and name the original source listed with it.", "affiliate_note": "book_url links go through /go/samboat, an affiliate link: Catamaran Index may earn a commission on bookings, at no extra cost to the traveller. It never changes the data." }