The weather in Koh Tao in May is very hot. The average temperatures are between 24°C and 34°C, drinking water regularly is advisable.
You can expect rain for roughly half of the month of May in Koh Tao. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Koh Tao in May 2025.
If you’re planning to visit Koh Tao in the near future, we highly recommend that you review the 14 day weather forecast for Koh Tao before you arrive.
Temperatures
34° / 24°
Rainy Days
14
Snowy Days
0
Dry Days
17
Rainfall
313
mm
Sun Hours
10.8
Hrs
