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Koh Tao

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Travel Info
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Travel Info

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Koh Tao Weather, Climate and Best Time to Visit

Data source：Meteostat
Update date：2025-09

Koh Tao year round climate

  • Spring (March–May): Average 83–85°F, hot and dry climate with less rainfall. Common activities: snorkeling, diving, sunbathing, watersports. Recommended clothing: light short-sleeved clothing, swimwear, sandals, sun hat, sunscreen.
  • Summer (June–August): Average 84–85°F, hot and humid climate with occasional showers. Common activities: snorkeling, diving, night activities, beach relaxation. Recommended clothing: light and breathable short-sleeved clothing, swimwear, sandals, rain gear.
  • Autumn (September–November): Average 81–83°F, warm and humid climate with gradually increasing rainfall. Common activities: snorkeling, diving, island exploration, enjoying the beach. Recommended clothing: light and breathable clothing, rain gear, sandals.
  • Winter (December–February): Average 80–82°F, warm and humid climate with more rainfall. Common activities: diving, snorkeling, observing marine life. Recommended clothing: light clothing, rain gear, swimwear.

Koh Tao climatological average

Annual average temperature: approx. 83.3°F / Annual rainfall: approx. 2370 mm / Summer humidity: 70%–80% / Rainiest month: December

Koh Tao monthly average temperature and precipitation

Month
Air temperature (°F)
Precipitation (mm)
January
81.3°F
186.9
February
82°F
120.5
March
83.3°F
59.4
April
85.3°F
31.3
May
85.6°F
136.7
June
85.5°F
110
July
84°F
218
August
84.7°F
113.9
September
83.5°F
162.2
October
82.2°F
326.4
November
81.1°F
445.1
December
81°F
460.5

Koh Tao weather for the next seven days

5/26
Tuesday
Patchy rain nearby
86.4°F/82.9°F
5/27
Wednesday
Patchy rain nearby
84.7°F/83.1°F
5/28
Thursday
Partly Cloudy
83.6°F/81.4°F
5/29
Friday
Moderate rain
82.3°F/81.2°F
5/30
Saturday
Heavy rain
81.3°F/78.8°F
5/31
Sunday
Moderate rain
80.8°F/79.2°F
6/1
Monday
Patchy rain nearby
82.8°F/79.6°F

Koh Tao Frequently Asked Questions and Useful Information for Travel

Why is Koh Tao famous?

Koh Tao is a small tropical paradise that engages millions of tourists every year because it has some of the best beaches for diving in the world. It is also renowned for being a premier diving island with a wide range of diving centers offering PADI and SSI certifications.

Is Koh Tao a party island?

Koh Tao is undeniably a party island, and Sairee Beach is the prime spot to dance 'til dawn. Experience exciting fire shows, including fire jump rope and fire limbo, making it a vibrant destination for nightlife.

How do I get to Koh Tao?

To reach Koh Tao, you must take a ferry from the mainland or nearby islands as there is no airport on the island. The quickest route from Bangkok involves flying to Koh Samui and then taking a 1.5-hour ferry. A popular budget option from Bangkok is a bus and ferry package, which takes about 12 hours. Alternatively, you can fly to Surat Thani or Chumphon on the mainland and catch a ferry from there.

What month are whale sharks in Koh Tao?

Peak whale shark season in Koh Tao typically occurs during March-April and September-October. Divers seeking excellent value might find good opportunities during February and October-November. Diving is still possible during the monsoon season (November-January) with flexible scheduling.

What are the best activities for divers in Koh Tao?

Koh Tao is globally recognized as a top destination for diving certification. Beyond obtaining PADI or SSI certifications, divers can explore vibrant coral reefs, encounter diverse marine life, and enjoy wreck dives. The calm, clear waters make it ideal for both beginners and experienced divers.