Sailing Thailand: Phuket, Langkawi & the Andaman

Limestone Towers and Turquoise Water

The first time you motor out of Phuket's Ao Po Grand Marina and round the headland into Phang Nga Bay, something shifts. Vertical limestone towers, some 300 metres tall and furred with jungle, rise straight out of water so green it looks backlit. The air smells of salt, frangipani, and the faint sweetness of longtail-boat exhaust.

This is the Andaman Sea, the strip of the Indian Ocean that runs between Thailand's west coast and the open water beyond. It feels nothing like the Mediterranean. Distances are shorter, the water sits at 29°C in January, and a plate of pad thai at a beachside stall costs €3. If you have sailed the Greek islands or Croatia's Dalmatian coast, Thailand will rewire your expectations of what a week on a boat can look like.

The Sailing Area: Phuket to Langkawi

The Andaman Sea cruising ground stretches roughly 200 NM from Phuket south to Langkawi, Malaysia. Most charters start and end in Phuket, though one-way routes to Langkawi are increasingly popular in high season. The area divides neatly into four zones.

Phuket and Phang Nga Bay

Phuket has three main marinas: Ao Po Grand Marina on the northeast coast, Yacht Haven on the north tip, and Boat Lagoon inland. Ao Po puts you closest to Phang Nga Bay, where you can anchor among the karsts within 2 hours of casting off. The bay is sheltered, rarely more than 1 metre of swell, and ideal for your first night aboard.

Koh Phi Phi and Krabi

About 40 NM southeast of Phuket, the Phi Phi islands deliver the scenery you have seen in every travel photo: sheer cliffs dropping into water so clear you can watch fish 8 metres below the hull. Maya Bay, famous from the film "The Beach," has a visitor cap now, so arrive before 08:00 or skip it entirely. Quieter anchorages sit on Phi Phi Don's eastern shore, where the only sound at dusk is the thud of coconuts dropping on rock.

Koh Lanta and Koh Rok

Continue 20 NM south and you reach Koh Lanta, a long, relaxed island with mangrove creeks on its east coast. From Lanta, a 15 NM hop brings you to Koh Rok Nok, a marine park island with a coral reef that starts in knee-deep water. Snorkelling here is genuinely spectacular. Expect to pay a 400 THB (about €10) national park entry fee per person.

Langkawi, Malaysia

The southernmost leg runs about 80 NM from Koh Lanta into Malaysian waters at Langkawi. This is a duty-free island, so fuel and provisions are significantly cheaper. The passage takes 12 to 16 hours depending on wind, and you clear customs at Telaga Harbour Marina. Many crews fly home from Langkawi International Airport, making one-way charters practical.

Classic 7-Day Route from Phuket

This itinerary covers roughly 120 NM with daily sails of 10 to 25 NM, leaving plenty of time for swimming, snorkelling, and eating grilled prawns on the beach. You won't feel rushed.

Day	From / To	Distance	Highlights
1	Ao Po Marina to Koh Panak, Phang Nga Bay	12 NM	Sea caves, bioluminescent plankton at night
2	Phang Nga Bay to Koh Yao Noi	10 NM	Muslim fishing village, rice paddies, kayaking
3	Koh Yao Noi to Koh Phi Phi Don	25 NM	Tonsai Bay, cliff snorkelling, beach bars
4	Phi Phi to Koh Lanta east coast	20 NM	Old Town Lanta, mangrove tour, night market
5	Koh Lanta to Koh Rok Nok	15 NM	Coral reef, marine park, camping beach
6	Koh Rok to Koh Racha Yai	25 NM	White sand, sea turtles, calm anchorage
7	Koh Racha Yai to Ao Po Marina	15 NM	Morning swim, return by midday

If you want help structuring your first charter booking, our step-by-step booking guide walks through the entire process. And if this is genuinely your first time aboard, the best destinations for beginners in 2026 list includes Thailand for good reason.

When to Go: The Season Question

The Andaman Sea has two clear seasons. Get this right and you get blue skies, 10 to 15 knot breezes from the northeast, and flat water. Get it wrong and you get horizontal rain.

November to April: Dry Season

This is when you want to be here. Winds sit reliably between force 3 and 4 from the northeast. Daytime temperatures hover around 32°C, water temperature stays near 29°C, and rain is rare. Peak months are December and January, when charter prices climb 20 to 30% and popular anchorages fill early. March and April are hotter but emptier.

May to October: Southwest Monsoon

Most charter companies pull their boats from the Andaman coast during monsoon season. Afternoon squalls bring gusts of force 6 to 7, visibility drops, and several marine parks close entirely. Some operators relocate fleets to the Gulf of Thailand's east coast. Unless you are very experienced, avoid this window. For a comparison to Mediterranean seasonality, the Med's July peak maps roughly onto Thailand's December to February sweet spot.

What It Costs: Real Numbers

Thailand is one of the most affordable blue-water sailing destinations on the planet. Here is what to budget, and for a deeper look at global charter pricing for 2026, see our cost breakdown.

• Catamaran 38 to 42 ft, bareboat: €2,000 to €3,500 per week depending on season and model
• Skippered catamaran (same size): add €80 to €120 per day for a local skipper
• Provisioning: €15 to €25 per person per day if you cook aboard, less if you eat ashore
• Eating out: street pad thai €3 to €5, seafood restaurant dinner €10 to €15 per person
• Fuel: €80 to €150 for a full week on a catamaran (engines plus generator)
• Marine park fees: roughly €10 per person per park (Koh Rok, Similan, Phi Phi Ley)
• Mooring/marina: many anchorages are free; marina berths €15 to €30 per night

Split across 6 to 8 people on a 40-foot catamaran, a full week including the boat, skipper, food, and park fees works out to roughly €70 to €110 per person per day. That is less than a mid-range hotel room in Phuket. If you are weighing a yacht against a hotel stay, the numbers often surprise people.

Catamaran Is King Here

Roughly 90% of charter boats in the Andaman Sea are catamarans. There is a simple reason. The water is often shallow, coral heads lurk close to the surface, and flat-bottomed cats draw just 1.0 to 1.3 metres. A monohull drawing 2 metres will lock you out of the best anchorages.

Catamarans also handle the short, choppy swell of the Andaman better than deep-keel monohulls, and their wide beam means a more stable platform for snorkelling and swimming off the stern. If you are curious about the broader monohull versus catamaran debate, we break down the six differences that actually matter. Our full catamaran charter guide covers everything from cabin layouts to handling tips.

Popular models you will find on the Phuket charter market include the Lagoon 40, Fountaine Pajot Isla 40, and Bali Catspace. All sleep 8 comfortably in 4 cabins.

Practical Tips for Thailand Sailing

Visa and Entry

Most nationalities receive a 60-day visa exemption on arrival in Thailand. If your route ends in Langkawi, you need a Malaysian visa waiver too, which covers most Western passports for 90 days. Keep your passport in a waterproof bag aboard.

Sailing Licence

Thailand does not require a sailing licence for recreational charters. If you are chartering with no experience, book a skippered charter and enjoy the ride. Some bareboat companies may ask for an RYA Day Skipper or IYT equivalent, but enforcement is inconsistent.

Currency and Payment

The Thai baht (THB) is the local currency. At the time of writing, €1 equals roughly 38 THB. ATMs are everywhere on Phuket and Koh Lanta. Smaller islands are cash only. Marina fees and charters are usually quoted and payable in EUR or USD.

Reef Shoes and Jellyfish

Coral cuts are the most common injury on Thai sailing trips. Pack a pair of hard-soled reef shoes and wear them every time you wade ashore. Box jellyfish appear occasionally between April and October, mainly near river mouths. During dry season they are rare. Carry vinegar aboard just in case. For a full packing list for sailing holidays, see our gear rundown.

Marine Park Rules

Thailand's marine national parks have strict anchoring rules. In Koh Rok and the Similan Islands, you must use mooring buoys rather than drop anchor on coral. Rangers collect fees (usually 400 THB per person) and enforce quiet hours after 22:00. Respect these rules. The reefs are recovering and they need the help.

Safety and Weather

The Andaman Sea during dry season is a relatively benign sailing environment. Squalls are rare, currents are mild, and VHF coverage is good near the coast. Still, understanding sailing risks matters anywhere. Carry a functioning GPS, check Thai Meteorological Department forecasts daily, and never anchor too close to a limestone cliff. Rockfall is a real hazard.

Why This Might Be Your Next Sailing Trip

Thailand's Andaman Sea offers something you do not find easily in the Mediterranean: warm water, cheap food, otherworldly scenery, and genuinely uncrowded anchorages once you sail 20 NM from the tourist hubs. The smell of lime and lemongrass drifting from a beachside kitchen at dusk. The sound of gibbons calling across a jungle-topped karst at dawn. The glow of bioluminescent plankton swirling under your hull at midnight. These are the moments that make you book a second week before the first one ends.

If you are thinking about trying sailing for the first time, Thailand makes a strong case. The water is warm enough that falling in feels like a reward, not a punishment. And at €70 to €110 per person per day, it is hard to find a better way to spend a week.