The climate in Negombo during August can be summarized as hot, humid and a little damp.
August is in the summer in Negombo and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a steamy 31°C (87°F), whilst at night 25°C (77°F) is normal.
Daytime temperature | 30.7°C 87.2°F |
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Nightly temperature | 25°C 76.9°F |
Average temperature | 27.8°C 82°F |
Daily sunshine | 6.8 hrs |
Avg rainfall | 87 mm 3.4 ins |
Rainy days | 9 days |
Sea temperature | 27°C 80.6°F |
Humidity | 77% |
Windspeed | 11.9kph 7 mph |
On average August is the 3rd driest month of the year in Negombo with around 87mm 3.4 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.8 hours of sunshine per day.
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 Negombo in August 2025.
Best places to visit in August
Hottest month: | April | 32.4°C 90.3°F |
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Driest month: | January | 48mm 1.9ins |
Sunniest month: | March | 9.2hrs |
Coldest month: | January | 30.9°C 87.6°F |
Wettest month: | October | 351mm 13.8ins |