Click on a day for an hourly weather forecast
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.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 27° / 26° | 8 | 23 | 0 | 326 mm | Good | Koh Phangan in January |
| February | 28° / 26° | 3 | 25 | 0 | 87 mm | Perfect | Koh Phangan in February |
| March | 28° / 27° | 5 | 26 | 0 | 178 mm | Perfect | Koh Phangan in March |
| April | 29° / 28° | 7 | 23 | 0 | 171 mm | Ok | Koh Phangan in April |
| May | 30° / 28° | 7 | 24 | 0 | 155 mm | Ok | Koh Phangan in May |
| June | 30° / 28° | 9 | 21 | 0 | 184 mm | Ok | Koh Phangan in June |
| July | 29° / 27° | 8 | 23 | 0 | 163 mm | Ok | Koh Phangan in July |
| August | 29° / 27° | 8 | 23 | 0 | 150 mm | Ok | Koh Phangan in August |
| September | 29° / 27° | 10 | 20 | 0 | 188 mm | Ok | Koh Phangan in September |
| October | 29° / 27° | 14 | 17 | 0 | 368 mm | Ok | Koh Phangan in October |
| November | 29° / 27° | 17 | 13 | 0 | 565 mm | Ok | Koh Phangan in November |
| December | 28° / 27° | 11 | 20 | 0 | 368 mm | Good | Koh Phangan in December |