Sri Jayewardenepura Kotte Weather in December
What's the weather like in Sri Jayewardenepura Kotte (Western) in December 2025?
The climate in Sri Jayewardenepura Kotte during December can be summarized as hot, humid and wet.
December is in the winter in Sri Jayewardenepura Kotte and is typically the coldest month of the year. Daytime maximum temperatures average around a steamy 30°C (87°F), whilst at night 23°C (73°F) is normal.
| Daytime temperature | 30.3°C 86.5°F |
|---|---|
| Nightly temperature | 22.6°C 72.6°F |
| Average temperature | 26.4°C 79.5°F |
| Daily sunshine | 7.3 hrs |
| Avg rainfall | 166 mm 6.5 ins |
| Rainy days | 10 days |
| Sea temperature | 28°C 82.3°F |
| Humidity | 78% |
| Windspeed | 8.3kph 5 mph |
On average December is the 6th driest month of the year in Sri Jayewardenepura Kotte with around 166mm 6.5 inches of rain making it a wet time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.3 hours of sunshine per day.
December temperatures in Sri Jayewardenepura Kotte
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 Sri Jayewardenepura Kotte in December 2025.
Other monthly averages
Best places to visit in December
Sri Jayewardenepura Kotte weather stats
| Hottest month: | May | 30.9°C 87.6°F |
|---|---|---|
| Driest month: | January | 55mm 2.2ins |
| Sunniest month: | March | 9.2hrs |
| Coldest month: | December | 30.1°C 86.2°F |
| Wettest month: | May | 382mm 15ins |
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