Ko Lanta Weather in December
What's the weather like in Ko Lanta (Krabi) in December 2025?
The climate in Ko Lanta during December can be summarized as hot, humid and a little damp.
December is in the winter in Ko Lanta and is typically the coldest month of the year. Daytime maximum temperatures average around a steamy 31°C (88°F), whilst at night 23°C (74°F) is normal.
| Daytime temperature | 30.9°C 87.6°F |
|---|---|
| Nightly temperature | 23.1°C 73.6°F |
| Average temperature | 27°C 80.6°F |
| Daily sunshine | 7.7 hrs |
| Avg rainfall | 91 mm 3.6 ins |
| Rainy days | 8 days |
| Sea temperature | 28.5°C 83.4°F |
| Humidity | 77% |
| Windspeed | 8.6kph 5 mph |
On average December is the 4th driest month of the year in Ko Lanta with around 91mm 3.6 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 8 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.7 hours of sunshine per day.
December temperatures in Ko Lanta
December rainfall
December 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 December 2025.
Other monthly averages
Best places to visit in December
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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