Chilaw Weather in September

What's the weather like in Chilaw (North Western) in September 2024?

The climate in Chilaw during September can be summarized as very hot, humid and wet.

September is in the fall / autumn in Chilaw and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a steamy 31°C (88°F), whilst at night 25°C (77°F) is normal.

Chilaw weather averages (imperial / metric)
Daytime temperature 31.3°C 88.4°F
Nightly temperature 24.8°C 76.6°F
Average temperature 28.1°C 82.5°F
Daily sunshine 6.6 hrs
Avg rainfall 122 mm 4.8 ins
Rainy days 9 days
Sea temperature 27.4°C 81.3°F
Humidity 76%
Windspeed 11.9kph 7 mph

On average September is the 6th wettest month of the year in Chilaw with around 122mm 4.8 inches of rain making it a wet 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 6.6 hours of sunshine per day.

September temperatures in Chilaw

Chilaw average temperature in September

September rainfall

Chilaw average rain in September

September hourly sunshine

Chilaw average rain in September

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 Chilaw in September 2024.

Other monthly averages

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UV index Best time to go?

Chilaw weather stats

Chilaw weather statistics
Hottest month: May 31.9°C 89.4°F
Driest month: August 43mm 1.7ins
Sunniest month: March 9.2hrs
Coldest month: January 30.7°C 87.3°F
Wettest month: October 314mm 12.4ins
Map showing location of Chilaw (7.57583, 79.79528) Chilaw map pin © Google

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