Ko Lanta Weather in May
What's the weather like in Ko Lanta (Krabi) in May 2025?
The climate in Ko Lanta during May can be summarized as very hot, humid and very wet.
May is in the spring in Ko Lanta and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a steamy 32°C (89°F), whilst at night 25°C (76°F) is normal.
| Daytime temperature | 31.9°C 89.3°F |
|---|---|
| Nightly temperature | 24.6°C 76.2°F |
| Average temperature | 28.2°C 82.8°F |
| Daily sunshine | 6.7 hrs |
| Avg rainfall | 284 mm 11.2 ins |
| Rainy days | 20 days |
| Sea temperature | 30.3°C 86.5°F |
| Humidity | 83% |
| Windspeed | 5.4kph 3 mph |
On average May is the 3rd wettest month of the year in Ko Lanta with around 284mm 11.2 inches of rain making it a very wet time to visit. This rainfall is typically spread over 20 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.7 hours of sunshine per day.
May temperatures in Ko Lanta
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 Ko Lanta in May 2025.
Other monthly averages
Ko Lanta weather stats
| Hottest month: | March | 33.9°C 93°F |
|---|---|---|
| Driest month: | February | 26mm 1ins |
| Sunniest month: | February | 9.5hrs |
| Coldest month: | December | 30.7°C 87.3°F |
| Wettest month: | September | 365mm 14.4ins |
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