Khian Sa Weather in May
What's the weather like in Khian Sa (Surat Thani) in May 2025?
The climate in Khian Sa during May can be summarized as very hot, humid and very wet.
May is in the spring in Khian Sa and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a steamy 33°C (92°F), whilst at night 24°C (75°F) is normal.
| Daytime temperature | 33.4°C 92.1°F |
|---|---|
| Nightly temperature | 23.6°C 74.5°F |
| Average temperature | 28.5°C 83.3°F |
| Daily sunshine | 6.8 hrs |
| Avg rainfall | 218 mm 8.6 ins |
| Rainy days | 19 days |
| Sea temperature | 30.3°C 86.5°F |
| Humidity | 82% |
| Windspeed | 4.7kph 3 mph |
On average May is the 4th wettest month of the year in Khian Sa with around 218mm 8.6 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 Khian Sa
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 Khian Sa in May 2025.
Other monthly averages
Khian Sa weather stats
| Hottest month: | April | 34.1°C 93.4°F |
|---|---|---|
| Driest month: | February | 16mm 0.6ins |
| Sunniest month: | February | 9.6hrs |
| Coldest month: | January | 30.4°C 86.7°F |
| Wettest month: | November | 341mm 13.4ins |
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