Main image

kallerna CC BY-SA 4.0 Wikimedia Commons

Ko Tao

Island

A small island in the Gulf of Thailand, Ko Tao attracts divers and snorkelers with crowded PADI courses, coral reefs and beaches, plus a nightlife centered on Sairee Beach's bars and restaurants.

Ko Tao BangkokChiang MaiPhuketKrabiKo SamuiKo Phi PhiAyutthayaChiang RaiKo TaoPaiSukhothaiKanchanaburiHua HinPattayaKo Tao
In this guide

Ko Tao essentials

Address: Ko Tao (Ko Thao), Surat Thani Province, Thailand
GoogleAppleOSM

About Ko Tao

Ko Tao is a small island in the Gulf of Thailand, part of Surat Thani province, renowned internationally for scuba diving and snorkeling. The island’s sheltered bays, reefs and concentration of dive schools make it a major dive-training centre in Southeast Asia.

Historically a sparsely populated fishing island, Ko Tao developed as a tourist and dive destination from the late 20th century as international diving tourism expanded. Infrastructure has grown around dive training, guesthouses and transport links to the mainland.

The island sits in the Chumphon/Surat Thani archipelago in the Gulf of Thailand and is administered by Surat Thani province. It lies north of Koh Phangan and Koh Samui and is reached by regular ferries from the mainland and neighbouring islands.

  • Diving hub: The island is a global centre for scuba training and dive certification, with numerous dive schools and hundreds of nearby dive sites.
  • Compact, hilly island: The island has a steep, hilly interior with multiple viewpoints and compact bays, so many popular sites are reached on short boat rides or on foot from beach settlements.

What to See#

  • Sairee Beach: Sairee Beach, the island’s longest sandy shoreline and main social hub for restaurants, bars and sunset viewpoints.
  • Mae Haad (pier and town): Mae Haad, the island’s main pier and settlement area where ferries arrive and local services are centred.
  • Island viewpoints: Interior viewpoints such as John-Suwan viewpoint and others on the island’s hilly interior that offer panoramic views over bays and nearby islets.
Things to Do
When to Go

Best Time to Visit Ko Tao

Ko Tao is best for diving from March to September, with generally good visibility and calmer waters for underwater activities.

Best diving season
March-September · 26-32 °C
Generally the best underwater visibility and calmer seas for snorkeling and scuba diving.
Dry/calm season
December-February · 25-31 °C
Calmer seas and comfortable temperatures for beach activities, though some dive operators may be busier.
Monsoon/shoulder season
October-November · 24-30 °C
More frequent storms and rougher seas can disrupt boat services and diving; lower visitor numbers.

Weather & Climate near Ko Tao

Climate

Ko Tao's climate is classified as Tropical Monsoon - Tropical Monsoon climate with consistently warm temperatures year-round. Temperatures range from 22°C to 32°C. Abundant rainfall (1534 mm/year), wettest in November.

Air Quality: AQI 53 Moderate
Best Time to Visit
FebruaryJanuaryMarch
Temperature & Rainfall
Temperature Range
32°
Warmest Month
24°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Excellent 22° - 29° 25° 72 mm partly cloudy 78% 2.3 m/s 1.8 very high 11.5h
February Excellent 22° - 29° 26° 51 mm some cloud 79% 2.4 m/s 2.1 extreme 11.7h
March Excellent 23° - 31° 27° 76 mm some cloud 79% 1.9 m/s 2.3 extreme 12.0h
April Very Good 24° - 32° 32° 74 mm partly cloudy 77% 1.7 m/s 2.3 extreme 12.3h
May Good 24° - 32° 31° 121 mm overcast 79% 2.2 m/s 2.2 extreme 12.5h
June Very Good 24° - 31° 31° 87 mm overcast 80% 2.7 m/s 2.1 extreme 12.6h
July Very Good 24° - 31° 30° 88 mm overcast 81% 2.4 m/s 2.0 extreme 12.6h
August Good 24° - 30° 27° 112 mm overcast 81% 2.7 m/s 2.1 extreme 12.3h
September Good 23° - 30° 27° 121 mm overcast 82% 1.9 m/s 2.1 extreme 12.1h
October Good 23° - 29° 26° 256 mm overcast 81% 1.7 m/s 1.8 very high 11.8h
November Good 22° - 28° 25° 354 mm overcast 80% 1.9 m/s 1.6 very high 11.5h
December Very Good 22° - 28° 25° 122 mm partly cloudy 78% 2.6 m/s 1.6 very high 11.4h
Getting There & Around

How to Get to Ko Tao

Ko Tao is an island reached by ferry or high‑speed catamaran. Regular operators include Lomprayah (high‑speed catamaran) and other ferry companies running routes from Chumphon, Surat Thani (Don Sak) and via Koh Phangan/Koh Samui; crossings typically take between ~1.5 and 4 hours depending on origin and vessel. From the pier at Mae Haad you can walk into the main town area (a few minutes) or take a short taxi/tuk‑tuk to beaches and dive sites.

Tips for Visiting Ko Tao

  • If diving or snorkeling, book the first morning boat trips to popular sites-early departures often mean calmer seas, better visibility and fewer other boats at the reefs.
  • Choose accommodation near Mae Haad/Sairee for the quickest access to ferries and dive shops; staying on the main west coast makes it easier to join trips and catch evening sunset viewpoints.
  • Reserve dive courses or popular snorkel excursions in advance during high season (November-April); many dive shops limit trainee numbers and fill up on short notice.