Nilanga Weather in September

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

September is in the fall / autumn in Nilanga and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a steamy 31°C (87°F), whilst at night 21°C (71°F) is normal.

On average September is the wettest month of the year in Nilanga with around 198mm 7.8 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 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 Nilanga in September 2025.