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Koh Tao

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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 28.5–29.8°C, 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 28.9–29.7°C, 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 27.3–28.6°C, 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 27.2–27.8°C, 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. 28.5°C / Annual rainfall: approx. 2370 mm / Summer humidity: 70%–80% / Rainiest month: December

Koh Tao monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
27.4°C
186.9
February
27.8°C
120.5
March
28.5°C
59.4
April
29.6°C
31.3
May
29.8°C
136.7
June
29.7°C
110
July
28.9°C
218
August
29.3°C
113.9
September
28.6°C
162.2
October
27.9°C
326.4
November
27.3°C
445.1
December
27.2°C
460.5

Koh Tao weather for the next seven days

5/31
Sunday
Heavy rain
29°C/27.4°C
6/1
Monday
Patchy rain nearby
28.8°C/28°C
6/2
Tuesday
Moderate rain
29.1°C/27.9°C
6/3
Wednesday
Moderate rain
28.8°C/28.1°C
6/4
Thursday
Patchy rain nearby
29.8°C/28°C
6/5
Friday
Patchy rain nearby
30°C/28.2°C
6/6
Saturday
Patchy rain nearby
29.5°C/28.2°C

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.