Tripomatic

Koh Tao

Island · Surat Thani, 🇹🇭 Thailand

Koh Tao is a small island in the Gulf of Thailand, north of Ko Pha-ngan and Koh Samui. It is famous for scuba diving, snorkeling and clear water. Green hills, rocky coves and small sandy bays fill the coast.

The island is compact and relaxed. Most visitors come to dive or snorkel, then spend free days at the beaches and viewpoints.

Koh Tao

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When to visit

The Gulf coast has a different rhythm from the Andaman side. The calmer, drier months run from about February to September, with the best sea conditions often in spring and summer. The wettest period is from October to December, when storms and rough seas can stop ferries and dive trips.

Water clarity and weather can change from year to year, so check the forecast before you book.

Best time to visit: February

Select a month

Typical weather in January

Good
  • 26° (feels like 28°) · extremes 24°–27°
  • 26° at night
  • 13 rainy days
  • 9 sunny days
  • 7 hours of sunshine per day
  • Oppressive humidity
  • Light breeze
  • 28°C · warm for swimming
  • UV index 8 · very high

Typical weather in February

Great
  • 27° (feels like 29°) · extremes 25°–28°
  • 26° at night
  • 8 rainy days
  • 12 sunny days
  • 7 hours of sunshine per day
  • Oppressive humidity
  • Light breeze
  • 28°C · warm for swimming
  • UV index 9 · very high

Typical weather in March

Good
  • 27° (feels like 30°) · extremes 25°–29°
  • 27° at night
  • 12 rainy days
  • 14 sunny days
  • 8 hours of sunshine per day
  • Oppressive humidity
  • Light breeze
  • 29°C · warm for swimming
  • UV index 10 · very high

Typical weather in April

Fair
  • 28° (feels like 32°) · extremes 26°–30°
  • 28° at night
  • 17 rainy days
  • 12 sunny days
  • 8 hours of sunshine per day
  • Oppressive humidity
  • Calm winds
  • 30°C · warm for swimming
  • UV index 11 · extreme

Typical weather in May

Poor
  • 29° (feels like 32°) · extremes 27°–30°
  • 28° at night
  • 29 rainy days
  • 5 sunny days
  • 6 hours of sunshine per day
  • Oppressive humidity
  • Light breeze
  • 31°C · warm for swimming
  • UV index 9 · very high

Typical weather in June

Poor
  • 28° (feels like 30°) · extremes 26°–30°
  • 27° at night
  • 28 rainy days
  • 5 sunny days
  • 6 hours of sunshine per day
  • Oppressive humidity
  • Light breeze
  • 30°C · warm for swimming
  • UV index 9 · very high

Typical weather in July

Poor
  • 28° (feels like 30°) · extremes 26°–29°
  • 27° at night
  • 30 rainy days
  • 3 sunny days
  • 5 hours of sunshine per day
  • Oppressive humidity
  • Light breeze
  • 30°C · warm for swimming
  • UV index 9 · very high

Typical weather in August

Poor
  • 28° (feels like 29°) · extremes 26°–29°
  • 27° at night
  • 29 rainy days
  • 4 sunny days
  • 6 hours of sunshine per day
  • Oppressive humidity
  • Light breeze
  • 29°C · warm for swimming
  • UV index 10 · very high

Typical weather in September

Poor
  • 28° (feels like 29°) · extremes 26°–29°
  • 27° at night
  • 29 rainy days
  • 4 sunny days
  • 5 hours of sunshine per day
  • Oppressive humidity
  • Light breeze
  • 29°C · warm for swimming
  • UV index 9 · very high

Typical weather in October

Poor
  • 27° (feels like 30°) · extremes 25°–28°
  • 27° at night
  • 29 rainy days
  • 4 sunny days
  • 5 hours of sunshine per day
  • Oppressive humidity
  • Light breeze
  • 29°C · warm for swimming
  • UV index 8 · very high

Typical weather in November

Poor
  • 27° (feels like 29°) · extremes 25°–28°
  • 27° at night
  • 25 rainy days
  • 5 sunny days
  • 5 hours of sunshine per day
  • Oppressive humidity
  • Light breeze
  • 29°C · warm for swimming
  • UV index 7 · high

Typical weather in December

Fair
  • 27° (feels like 28°) · extremes 25°–28°
  • 26° at night
  • 19 rainy days
  • 6 sunny days
  • 6 hours of sunshine per day
  • Oppressive humidity
  • Light breeze
  • 28°C · warm for swimming
  • UV index 7 · high

Climate data: NASA POWER + Copernicus ERA5 · 1996–2025

Top sights

  • Sairee Beach is the main beach on the west coast, with dive shops, bars and restaurants along the sand.
  • Tanote Bay is a beach on the east side with calm water and a quiet feel.
  • Mango Bay is a bay on the north end with clear water and good snorkeling.
  • Shark Bay is a small bay in the south, popular for snorkeling.
  • Freedom Beach is a beach on the southwest coast that can be reached by a path or by boat.
  • Jansom Bay is a sheltered bay on the southwest coast with calm water.
  • Nang Yuan Viewpoint is a viewpoint over Nang Yuan island, reached by a steep road.

Featured Lists

What to experience

  • Learn to dive: Koh Tao has many dive schools offering courses for beginners.
  • Snorkel in a bay: Swim over reefs in quiet bays.
  • Hike to a viewpoint: Take a short trail for views over the coast.
  • Kayak or paddleboard: Rent a board in a calm bay.
  • Sunset drink: Watch the sun go down from a beach bar.

Tours & Activities

Koh Tao — Map

Koh Tao — Map

Day trips

These trips are listed from closest to farthest.

  • Nang Yuan Island: a short boat ride from the northwest coast. Three small islands joined by a sandbar, with a viewpoint and snorkeling.
  • Snorkeling boat tours: day trips circle the island and stop at several bays.
  • Ko Pha-ngan and Koh Samui: reached by ferry. Plan at least a full day, as boats are slow.

Where to explore

  • Ko Pha-ngan is the nearest large island to the south.
  • Koh Samui is a larger island with more hotels, restaurants and shops.
  • Ang Thong Marine Park is a marine park of limestone islands.
  • Khao Sok is a national park on the mainland with a large lake.

Getting there

  • By ferry from the mainland: Boats run from Chumphon to Koh Tao. Fast boats take about 1.5 to 2 hours, and slower night boats take longer.
  • From Samui or Pha-ngan: Ferries link the islands. Schedules change with the weather, so check in advance.
  • Combined tickets: Many travelers book a bus and boat from Bangkok or Surat Thani as one ticket.
  • By air: There is no airport on the island. Fly to Chumphon or Samui and continue by boat.

Getting around

  • On foot: Sairee and the main village are walkable, but the island is hilly.
  • Taxis and songthaews: Pick-up trucks run between bays. Agree on the price first.
  • Scooters and quad bikes: Common but dangerous on steep, rough roads.
  • Boats: Water taxis reach bays that are hard to reach by road.

Driving

  • Is a car worth it?: No. Roads are steep and rough. Taxis and boats cover most trips.
  • Driving side: Traffic drives on the left.
  • Scooters: Many tourists are injured on the hills. Wear a helmet and ride slowly.

Food & drink

Koh Tao offers Thai food, seafood and international meals aimed at divers. Fresh fish and noodle shops are cheap. Cafes serve breakfast and smoothies near the beaches.

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

  • Diving: Use a reputable, certified school and check equipment. Do not fly within the time advised after diving.
  • Scooters: Roads are steep and rough, and accidents are common.
  • Swimming: Currents can be strong in the stormy season.
  • Sun and reef: Use sunscreen and do not touch coral.
  • Medical care: Serious cases often need transfer to the mainland. Keep travel insurance that covers diving.
  • Drugs: Thai drug laws are strict. Do not carry or use drugs.
  • Royal family: Do not speak or write badly about the monarchy. It is a serious crime in Thailand.

History

Koh Tao was a quiet island with few residents for many years. Fishing and coconut farming supported the small community. Travelers began to arrive in the late 20th century, and diving turned the island into one of Thailand's best-known dive centers.

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
Ao Muang (Mango Bay)
Drive
Freedom Beach
Walk
John-Suwan Mountain Viewpoint (view on ao Chalok and ao thian beach)

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