Harpanahalli Weather in September

The climate in Harpanahalli during September can be summarized as hot, humid and damp.

September is in the fall / autumn in Harpanahalli and is typically the 6th coldest month of the year. Daytime maximum temperatures average around a steamy 29°C (85°F), whilst at night 21°C (70°F) is normal.

On average September is the 2nd wettest month of the year in Harpanahalli with around 101mm 4 inches of rain making it a 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 5.8 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 Harpanahalli in September 2025.