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Koh Samui

Island · Surat Thani, 🇹🇭 Thailand

Koh Samui is a tropical island in the Gulf of Thailand. It is known for its palm-lined beaches, calm bays and a wide choice of resorts. A ring road circles the island, with a mountain interior covered in jungle.

Each coast has its own feel. Chaweng is the busiest beach, Lamai is more relaxed, and the north coast around Bophut suits couples and families. Samui is a good base for beach days, temples, waterfalls and boat trips to nearby islands.

Printable tourist map

Koh Samui

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When to visit

The driest and sunniest months are February to April. Rain is heaviest from October to December, when the sea can be rough and some boats stop running.

The biggest event near Samui is the Full Moon Party on Ko Pha-ngan, held every month. Many visitors take a boat from Samui for the night, and boats and rooms fill up early.

Best time to visit: February, March

Select a month

Typical weather in January

Good
  • 24° · extremes 22°–25°
  • 23° at night
  • 13 rainy days
  • 10 sunny days
  • 7 hours of sunshine per day
  • Muggy, humid air
  • Light breeze
  • UV index 8 · very high

Typical weather in February

Great
  • 24° (feels like 25°) · extremes 22°–26°
  • 23° at night
  • 7 rainy days
  • 14 sunny days
  • 8 hours of sunshine per day
  • Muggy, humid air
  • Light breeze
  • UV index 10 · very high

Typical weather in March

Great
  • 25° (feels like 27°) · extremes 23°–27°
  • 24° at night
  • 9 rainy days
  • 18 sunny days
  • 8 hours of sunshine per day
  • Muggy, humid air
  • Light breeze
  • UV index 11 · extreme

Typical weather in April

Good
  • 26° (feels like 28°) · extremes 24°–28°
  • 25° at night
  • 14 rainy days
  • 15 sunny days
  • 8 hours of sunshine per day
  • Oppressive humidity
  • Calm winds
  • UV index 11 · extreme

Typical weather in May

Poor
  • 27° (feels like 28°) · extremes 24°–28°
  • 25° at night
  • 27 rainy days
  • 8 sunny days
  • 7 hours of sunshine per day
  • Oppressive humidity
  • Light breeze
  • UV index 10 · very high

Typical weather in June

Fair
  • 26° (feels like 27°) · extremes 23°–27°
  • 24° at night
  • 25 rainy days
  • 8 sunny days
  • 7 hours of sunshine per day
  • Oppressive humidity
  • Light breeze
  • UV index 9 · very high

Typical weather in July

Fair
  • 26° (feels like 27°) · extremes 23°–27°
  • 24° at night
  • 27 rainy days
  • 7 sunny days
  • 6 hours of sunshine per day
  • Oppressive humidity
  • Light breeze
  • UV index 9 · very high

Typical weather in August

Fair
  • 26° · extremes 23°–27°
  • 24° at night
  • 26 rainy days
  • 8 sunny days
  • 6 hours of sunshine per day
  • Oppressive humidity
  • Light breeze
  • UV index 10 · very high

Typical weather in September

Fair
  • 25° (feels like 26°) · extremes 23°–26°
  • 24° at night
  • 27 rainy days
  • 7 sunny days
  • 6 hours of sunshine per day
  • Muggy, humid air
  • Light breeze
  • UV index 10 · very high

Typical weather in October

Poor
  • 25° (feels like 26°) · extremes 23°–26°
  • 24° at night
  • 29 rainy days
  • 5 sunny days
  • 5 hours of sunshine per day
  • Muggy, humid air
  • Light breeze
  • UV index 9 · very high

Typical weather in November

Fair
  • 25° · extremes 23°–26°
  • 24° at night
  • 25 rainy days
  • 5 sunny days
  • 5 hours of sunshine per day
  • Muggy, humid air
  • Light breeze
  • UV index 8 · very high

Typical weather in December

Good
  • 24° · extremes 22°–26°
  • 23° at night
  • 19 rainy days
  • 6 sunny days
  • 6 hours of sunshine per day
  • Muggy, humid air
  • Light breeze
  • UV index 8 · very high

Climate data: NASA POWER (MERRA-2) · 1996–2025

Top sights

  • Wat Phra Yai (Big Buddha) is a large golden Buddha statue on a small island linked by a short causeway in the north. It is easy to reach and a good place for sunset.
  • Wat Plai Laem is a colorful temple on a lake with a giant white statue of Guanyin. It is next to a second temple with a many-armed statue.
  • Hin Ta and Hin Yai are two rocks on the coast that look like human shapes. They are a short stop near Lamai.
  • Na Muang Waterfall is a waterfall in the interior of the island. Visit after rain, when there is water in the pools.
  • Wat Khunaram is a temple on the south coast with a monk who is preserved in a glass case. It is an unusual stop that many visitors remember.
  • Secret Buddha Garden is a garden of statues in the hills. It is quiet and shaded.
  • Lamai Beach is a long beach on the southeast coast. It is calmer and more relaxed than Chaweng.
  • Chaweng Yai Beach is the busiest and best-known beach, with white sand and many shops, restaurants and bars.

Featured Lists

What to experience

  • Fisherman's Village walking street: On Friday evenings, the old village in Bophut closes to traffic for a market with food and crafts.
  • Sunset on the water: Watch the sun go down from the beach at Bophut or the north coast.
  • Island boat tour: Join a day tour to the islands and snorkel in the clear water.
  • Thai cooking class: Many schools run half-day classes with a market visit.
  • Waterfall swimming: After rain, swim in the pools at the interior waterfalls.

Tours & Activities

Koh Samui — Map

Koh Samui — Map

Day trips

Boat trips are the main day trips from Samui. They are listed from closest to farthest.

  • Ko Pha-ngan: about 30 to 60 minutes by ferry. Quiet beaches and the famous Full Moon Party.
  • Ang Thong Marine Park: about 1.5 to 2 hours by boat. Limestone islands, lagoons and kayaking. Most people go on an organized day tour.
  • Ko Tao: about 1.5 to 2 hours by high-speed ferry. Known for diving and snorkeling. Stay overnight if you can.

Where to explore

Islands and parks near Samui:

Getting there

  • By air: Samui Airport (USM) is in the northeast and has direct flights from Bangkok and a few other cities. The flight from Bangkok takes about 1 hour. The airport is a small open-air terminal. Tickets are often more expensive than flights to the mainland.
  • By air and ferry: Surat Thani Airport (URT) is on the mainland and has cheaper flights. A combined bus and ferry transfer to Samui takes about 2.5 to 3 hours.
  • By ferry: Car and passenger ferries leave from Donsak on the mainland and take about 1.5 hours. High-speed boats also run from Ko Pha-ngan and Ko Tao.
  • By bus and train: Combined tickets from Bangkok include a bus or train to Surat Thani and a ferry. The trip takes about 12 hours or more.

Getting around

  • Songthaew: Pick-up trucks run around the ring road. Agree on the price before you get in, as drivers do not use meters.
  • Taxis: Taxis are expensive and often do not use meters. Agree on the fare in advance.
  • Motorbike rental: Very popular, but accidents are common. Rent only if you have experience, a license and insurance.
  • On foot: Beach areas are walkable. The island is large, so you need transport between them.

Driving

  • Is a car worth it?: A rental car or motorbike gives freedom to see the island. For a resort stay on one beach, you can use songthaews and taxis.
  • Driving side: Traffic drives on the left.
  • Ring road: The main road circles the island. Side roads to waterfalls and viewpoints can be steep and wet in the rainy season.
  • Safety: Wear a helmet on a motorbike. Police check licenses on the ring road.

Food & drink

Samui has fresh seafood and southern Thai dishes with coconut. Look for grilled fish, curries with coconut milk and tropical fruit. Many resorts serve international food.

The best eating areas are the night markets in Chaweng, Lamai and Nathon, and the street food stalls in Bophut. Beach restaurants offer seafood with a sea view, and prices are higher there than at the markets.

Lunch
Pad ThaiStir-fried rice noodles with egg, tofu or shrimp, bean sprouts, and tamarind sauce, topped with crushed peanuts.
Som TamSpicy shredded green papaya salad with lime, chili, fish sauce, and peanuts.
Boat Noodles  Kuay Teow ReuaSmall, intensely flavored bowls of noodle soup, traditionally served from boats along Bangkok's canals.
Dinner
Tom Yum Goong  Tom Yum KungHot and sour soup with shrimp, lemongrass, galangal, kaffir lime leaves, and chili.
Green Curry  Gaeng Keow WanCoconut-milk curry with green chilies, Thai basil, and meat or tofu, served with rice.
Massaman Curry  Gaeng MassamanMild, rich curry with Persian and Indian influences, typically made with beef or chicken, potatoes, and peanuts.
Snacks & street food
Satay  SateGrilled skewers of marinated meat served with peanut dipping sauce.
Mango Sticky Rice Roti  RotiCrispy pan-fried flatbread, often served sweet with condensed milk and banana, or savory.
Sweets & desserts
Mango Sticky Rice  Khao Niao MamuangSweet sticky rice served with fresh mango slices and coconut cream.
Drinks
Thai Iced Tea  Cha YenStrong black tea sweetened with condensed milk and served over ice.
Singha / Chang Beer  Beer Chang / SinghaPopular Thai lagers widely available at bars and restaurants.

Safety & health

Samui is safe for tourists. The main danger is traffic.

  • Motorbikes: Many visitors are hurt in scooter accidents. Wear a helmet, and avoid riding at night or after drinking.
  • Sea conditions: Currents can be strong during the rainy season. Swim only where flags show it is safe.
  • Scams: Jet ski operators sometimes claim damage. Photograph the machine before you ride.
  • Water: Drink bottled water.
  • Temples: Cover your shoulders and knees at temples. Do not speak or write badly about the monarchy, which is a serious crime.

History

For a long time Samui was a quiet island of coconut farms and fishing villages. Coconuts were its main export. Roads and an airport arrived in the late 1980s, and tourism grew quickly from that time.

Some of the island's older character remains in places like Wat Khunaram and Wat Plai Laem, where local people still come to pray.

Country facts

Quick practical facts for Thailand at a glance:

Currency
Thai Baht THB ฿ · Card payments · Commonly accepted
Emergency numbers
191 Police
Electricity
Type A / Type B / Type C / Type O
220 V · 50 Hz
Languages
Thai
Tap water
Drink with caution
Driving side
Left
Calling code
+66
Learn more
Big Buddha
Drive
Samui International Airport
Drive
Khunaram Temple

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Data: © OpenStreetMap contributors, Wikidata, Wikipedia, Tripomatic, Official websites. Travel guide generated with AI.