Surat Thani Weather in May
What's the weather like in Surat Thani (Surat Thani) in May 2025?
The climate in Surat Thani during May can be summarized as very hot, humid and very wet.
May is in the spring in Surat Thani and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a steamy 34°C (92°F), whilst at night 24°C (74°F) is normal.
| Daytime temperature | 33.5°C 92.3°F |
|---|---|
| Nightly temperature | 23.5°C 74.3°F |
| Average temperature | 28.5°C 83.3°F |
| Daily sunshine | 6.8 hrs |
| Avg rainfall | 212 mm 8.3 ins |
| Rainy days | 19 days |
| Sea temperature | 30.2°C 86.4°F |
| Humidity | 81% |
| Windspeed | 4.3kph 3 mph |
On average May is the 4th wettest month of the year in Surat Thani with around 212mm 8.3 inches of rain making it a very wet time to visit. This rainfall is typically spread over 19 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.8 hours of sunshine per day.
May temperatures in Surat Thani
May rainfall
May hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Surat Thani in May 2025.
Other monthly averages
Surat Thani weather stats
| Hottest month: | April | 34.2°C 93.6°F |
|---|---|---|
| Driest month: | February | 13mm 0.5ins |
| Sunniest month: | February | 9.7hrs |
| Coldest month: | January | 30.3°C 86.5°F |
| Wettest month: | November | 327mm 12.9ins |
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