Brownstown Weather in September

What's the weather like in Brownstown (Indiana) in September 2025?

The climate in Brownstown during September can be summarized as warm and reasonably dry.

September is in the fall / autumn in Brownstown and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 26°C (79°F), whilst at night 12°C (54°F) is normal.

Brownstown weather averages (imperial / metric)
Daytime temperature 26.3°C 79.3°F
Nightly temperature 12.2°C 53.9°F
Average temperature 19.2°C 66.6°F
Daily sunshine 8.5 hrs
Avg rainfall 74 mm 2.9 ins
Rainy days 8 days
Sea temperature 22.4°C 72.4°F
Humidity 73%
Windspeed 12.2kph 8 mph

On average September is the 2nd driest month of the year in Brownstown with around 74mm 2.9 inches of rain making it a reasonably dry 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 8.5 hours of sunshine per day.

September temperatures in Brownstown

Brownstown average temperature in September

September rainfall

Brownstown average rain in September

September hourly sunshine

Brownstown 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 Brownstown in September 2025.

Other monthly averages

Best places to visit in September

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Brownstown weather stats

Brownstown weather statistics
Hottest month: July 29.9°C 85.8°F
Driest month: February 70mm 2.8ins
Sunniest month: July 10.3hrs
Coldest month: January 2.7°C 36.9°F
Wettest month: July 118mm 4.6ins
Map showing location of Brownstown (38.87894, -86.04192) Brownstown map pin © Google

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