# 7-day sailing itinerary in Thailand: from Phuket > 6-leg, about 110 nm route in Thailand, from Phuket: day-by-day stops, distances, marinas, park rules, wind by month and best months. Sourced. URL: https://catamaranindex.com/itineraries/thailand/ Last updated: 2026-10-29 Author: Catamaran Index editorial team A classic 7-day sailing itinerary in Thailand from Phuket starts and ends in Ao Chalong and goes Ao Chalong → Koh Phi Phi → Railay (Krabi) → Koh Hong → Phang Nga Bay → Koh Yao Noi → Ao Chalong: 6 legs and about 110 nautical miles in straight lines between the stops (our calculation; you will sail further). By our rules we name no best months, because we have no monsoon rule yet; the mean wind at Ao Chalong, Phuket is 5–8 knots (our calculation from NASA POWER data) across the year; most anchorages have mooring buoys and damaging coral is a criminal offence, according to a marine guide (no official Thai page found). *Checked 29 Oct 2026. Our editorial route, not a navigation plan, and not yet reviewed by a sailor. Distances are straight lines between the stops ([how we calculate](#method)); fees are labelled official, secondary or not verified ([labels](#labels)). Your charter base will brief you on the route, depths and conditions.* ## Day by day | Day | From → to | Distance (straight line, our calculation) | Overnight | What to know | |---|---|---:|---|---| | Day 1 | Ao Chalong → Koh Phi Phi | 25.5 nm | not verified | – | | Day 2 | Koh Phi Phi → Railay (Krabi) | 17.0 nm | not verified | – | | Day 3 | Railay (Krabi) → Koh Hong (Phang Nga Bay; our reading of the route) | 23.9 nm | not verified | – | | Day 4 | Koh Hong (Phang Nga Bay; our reading of the route) → Phang Nga Bay | 5.8 nm | not verified | – | | Day 5 | Phang Nga Bay → Koh Yao Noi | 13.7 nm | not verified | – | | Day 6 | Koh Yao Noi → Ao Chalong | 24.4 nm | not verified | – | Total: about 110 nm in straight lines over 6 legs (our calculation). This route has 6 sailing days; the other day is free for weather, a longer stop or the hand-over (our suggestion). ## Distances between the stops The longest hop is Ao Chalong → Koh Phi Phi at about 25.5 nm; the shortest is Koh Hong → Phang Nga Bay at about 5.8 nm (our reading of the table). Coordinates are OpenStreetMap's, rounded to 4 decimals. For Koh Hong OpenStreetMap gave an island or area point, not the harbour or anchorage itself, so that leg's distance is approximate. | Stop | Latitude | Longitude | |---|---:|---:| | Ao Chalong | 7.8197 | 98.3505 | | Koh Phi Phi | 7.7363 | 98.7703 | | Railay (Krabi) | 8.0114 | 98.8365 | | Koh Hong (Phang Nga Bay; our reading of the route) | 8.2388 | 98.5061 | | Phang Nga Bay | 8.3359 | 98.5029 | | Koh Yao Noi | 8.1339 | 98.6099 | Coordinates © OpenStreetMap contributors, [ODbL](https://www.openstreetmap.org/copyright) ([OpenStreetMap (Nominatim geocoder)](https://nominatim.openstreetmap.org/), checked 29 Oct 2026). ## Marinas, moorings and fees on this route | Fee | Amount | Status | Source | |---|---|---|---| | Anchoring fees in marine national parks | Not verified *(Thai Marine Guide says rangers can charge anchoring fees set by the department, by yacht size and people on board.)* | not verified | [Thai Marine Guide](https://thaimarineguide.com/info/restricted-areas/) | Fees are examples and are **not added together**: they depend on the boat's length, the day and where you actually stop. Every other cost of the week, per person: [true cost of a week in Thailand](https://catamaranindex.com/true-cost/thailand/). ## Park and anchoring rules - **[Secondary source]** Thai Marine Guide: most anchorages have mooring buoys (yellow or red with a blue band); if none is free, anchor well away from coral, because damaging coral is a criminal offence. ([Thai Marine Guide](https://thaimarineguide.com/info/restricted-areas/)) More on moorings and parks: [snorkelling and diving in Thailand](https://catamaranindex.com/snorkel-dive/thailand/#moorings). ## Wind and weather by month on this route Mean air temperature and mean wind at one reference point, Ao Chalong, Phuket (7.822, 98.363), for this route. Our verdict column applies our best-time rules to that point ([how](https://catamaranindex.com/methodology/#itineraries)). | Month | Mean air temperature | Mean wind | Our verdict | |---|---:|---:|---| | [January](https://catamaranindex.com/where-to-sail/january/) | 27 °C | 7 kn | Peak price · Warm | | [February](https://catamaranindex.com/where-to-sail/february/) | 28 °C | 7 kn | Peak price · Warm | | [March](https://catamaranindex.com/where-to-sail/march/) | 29 °C | 6 kn | Warm | | [April](https://catamaranindex.com/where-to-sail/april/) | 29 °C | 5 kn | Warm | | [May](https://catamaranindex.com/where-to-sail/may/) | 29 °C | 6 kn | Warm | | [June](https://catamaranindex.com/where-to-sail/june/) | 28 °C | 7 kn | Best value · Warm | | [July](https://catamaranindex.com/where-to-sail/july/) | 28 °C | 8 kn | Warm | | [August](https://catamaranindex.com/where-to-sail/august/) | 28 °C | 8 kn | Best value · Warm | | [September](https://catamaranindex.com/where-to-sail/september/) | 28 °C | 8 kn | Best value · Warm | | [October](https://catamaranindex.com/where-to-sail/october/) | 28 °C | 6 kn | Warm | | [November](https://catamaranindex.com/where-to-sail/november/) | 28 °C | 6 kn | Warm | | [December](https://catamaranindex.com/where-to-sail/december/) | 27 °C | 7 kn | Peak price · Warm | Windiest month: August (8 kn); calmest: April (5 kn) at Ao Chalong, Phuket (our reading of NASA POWER means). Mean wind is not gusts or sea state. Seasonal hazards by month (storms, strong-wind days, rain): [weather risk in Thailand](https://catamaranindex.com/weather-risk/thailand/). Air temp = NASA POWER monthly mean 2 m air temperature (T2M); wind = monthly mean 10 m wind speed (WS10M), converted from m/s to knots (kn) with 1 m/s = 3600/1852 kn. For each calendar month we average the 2016–2025 values (10 full years). POWER's meteorological grid is ½° latitude by ⅝° longitude (roughly 55 × 50 km at these latitudes), so one cell cannot show local sea breezes or coast-to-hill temperature differences. They are our calculation of average conditions, not a forecast, not gusts, and not sea conditions. Mean wind is lower than the peak winds you will feel on the water. Weather data obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) Project, funded through the NASA Earth Science Division (pulled 2026-10-28) ([NASA POWER](https://power.larc.nasa.gov/docs/services/api/temporal/monthly/), checked 28 Oct 2026). We changed the data: we averaged the monthly values for 2016–2025 and converted wind from m/s to knots (our calculation). ## Best months for this route - **Best weather:** not named (no monsoon rule yet) (our rule: warm, and outside the hurricane or wet season where we have a source). - **Sweet spot:** not named (no monsoon rule yet) (our rule: best weather, and not one of the three priciest months). - **Calmest, for families:** March, April, November (our suggestion: the calmest best-weather months by mean wind). - **Windiest, for keen sailors:** July, August, September (our ranking). Full month-by-month comparison with prices: [best time to charter in Thailand](https://catamaranindex.com/best-time/thailand/). ## What this week costs 12 Knots' average weekly catamaran price is €4,996 in August and €10,235 in January (asking prices, updated October 2026) ([12 Knots](https://12knots.com/en/yacht-charter/destinations/southeast-asia/thailand/catamaran-charter/), checked 27 Oct 2026). All-in per person for 4, 6 or 8 people: [true cost of a week in Thailand](https://catamaranindex.com/true-cost/thailand/). ## Do I need a licence or a skipper? Probably not by law, but we could not find an official Thai source: Anchor says no licence is required by law in Thailand and that charter companies ask for a sailing résumé showing you have been in charge of a boat of similar size. More: [licence rules for Thailand](https://catamaranindex.com/licence-by-country/thailand/). No licence? A skipper costs extra: [bareboat vs skippered](https://catamaranindex.com/compare/bareboat-vs-skippered/). ## See boats in Thailand **[See catamarans for rent in Thailand on SamBoat](https://catamaranindex.com/go/samboat?dest=thailand&pos=itinerary)** Ask the base about the route, the boat's draught and its fees before you book; listings and prices on SamBoat are SamBoat's own. We may earn a commission if you book through our links, at no extra cost to you ([disclosure](https://catamaranindex.com/affiliate-disclosure/)). ## What we could not verify - Mu Ko Phi Phi and Ao Phang Nga national park entry fees for yacht guests. - Which Koh Hong the route means (we read it as the one in Phang Nga Bay). ## How we calculate Distances: great-circle distance between the OpenStreetMap coordinates of each stop on a sphere of radius 6,371 km, converted at 1.852 km per nautical mile (our calculation). A real passage is longer: headlands, channels, tacking. Best months: the best-time rules ([methodology](https://catamaranindex.com/methodology/#itineraries)). Catamaran berth examples: the marina's printed rate × its printed multihull surcharge (our arithmetic). ## How to read the labels - **[Secondary source]**: From a newspaper, NGO, guide, charter company or community map; not official. - **[Not verified]**: We could not confirm it. We leave it open rather than guess, and never add it to a total. - No label: Read in an official text: government, park or port authority, or an operator's own published price list. Distances, catamaran berth examples, best months and weather means are our calculation and say so. Fees change and depend on the boat's length, the day and where you stop: check with your charter base. ## Sources - [Thai Marine Guide: Thai Marine Guide – restricted areas](https://thaimarineguide.com/info/restricted-areas/) (secondary, not official), checked 28 Oct 2026. - [OpenStreetMap (Nominatim geocoder): Nominatim search API: coordinates of each itinerary stop](https://nominatim.openstreetmap.org/) (secondary, not official), checked 29 Oct 2026. - [NASA POWER: Prediction Of Worldwide Energy Resources: Monthly API (T2M, WS10M)](https://power.larc.nasa.gov/docs/services/api/temporal/monthly/) (official), air temperature and wind at Ao Chalong, Phuket, 2016–2025 means, our calculation. - [12 Knots: Catamaran charter in Thailand](https://12knots.com/en/yacht-charter/destinations/southeast-asia/thailand/catamaran-charter/) (secondary, prices), checked 27 Oct 2026. Method: [methodology](https://catamaranindex.com/methodology/#itineraries). Data: [JSON](https://catamaranindex.com/api/itineraries/thailand.json). ## More on Thailand - [7-day sailing itineraries: every route compared](https://catamaranindex.com/itineraries/) - [Thailand yacht and catamaran charter: prices, season and licence](https://catamaranindex.com/thailand/) - [Best time to charter in Thailand](https://catamaranindex.com/best-time/thailand/) - [Weather risk by month in Thailand](https://catamaranindex.com/weather-risk/thailand/) - [True cost of a week in Thailand](https://catamaranindex.com/true-cost/thailand/) - [Snorkelling and diving in Thailand](https://catamaranindex.com/snorkel-dive/thailand/) - [Fishing rules in Thailand](https://catamaranindex.com/fishing/thailand/) - [Do I need a licence to rent a boat in Thailand?](https://catamaranindex.com/licence-by-country/thailand/) - [Catamaran Index home](https://catamaranindex.com/) ## FAQ ### What is a good 7-day sailing itinerary in Thailand? A classic 7-day sailing itinerary in Thailand from Phuket starts and ends in Ao Chalong and goes Ao Chalong → Koh Phi Phi → Railay (Krabi) → Koh Hong → Phang Nga Bay → Koh Yao Noi → Ao Chalong: 6 legs and about 110 nautical miles in straight lines between the stops (our calculation; you will sail further). By our rules we name no best months, because we have no monsoon rule yet; the mean wind at Ao Chalong, Phuket is 5–8 knots (our calculation from NASA POWER data) across the year; most anchorages have mooring buoys and damaging coral is a criminal offence, according to a marine guide (no official Thai page found). ### How far is it from Ao Chalong to Koh Phi Phi by boat? About 25.5 nautical miles in a straight line (our calculation from OpenStreetMap coordinates); the distance you sail is longer. ### When is the best time to sail this route in Thailand? By our rules we name no best months for this route, because we have no monsoon rule yet. ### Do you pay to moor or anchor on this route in Thailand? We could not verify any official mooring, anchoring or park fee on this route. Secondary source: Thai Marine Guide: most anchorages have mooring buoys (yellow or red with a blue band); if none is free, anchor well away from coral, because damaging coral is a criminal offence. Ask your charter base what to budget. ### Do I need a licence to sail in Thailand on my own? Probably not by law, but we could not find an official Thai source: Anchor says no licence is required by law in Thailand and that charter companies ask for a sailing résumé showing you have been in charge of a boat of similar size. --- Affiliate disclosure: some links are affiliate links; we may earn a commission at no extra cost to you. See /affiliate-disclosure/.