The temperatures in Koh Phangan during May are extremely high, between 28°C and hot as 30°C, drinking water regularly is advisable.
You can expect about 3 to 8 days of rain in Koh Phangan during the month of May. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Koh Phangan in May 2025.
If you’re planning to visit Koh Phangan in the near future, we highly recommend that you review the 14 day weather forecast for Koh Phangan before you arrive.
Temperatures
30° / 28°
Rainy Days
7
Snowy Days
0
Dry Days
24
Rainfall
155
mm
Sun Hours
11.3
Hrs