Brookhaven Weather in September

What's the weather like in Brookhaven (Mississippi) in September 2025?

The climate in Brookhaven during September can be summarized as hot, humid and a little damp.

September is in the fall / autumn in Brookhaven and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a muggy 30°C (86°F), whilst at night 18°C (64°F) is normal.

Brookhaven weather averages (imperial / metric)
Daytime temperature 30.2°C 86.3°F
Nightly temperature 17.9°C 64.1°F
Average temperature 24°C 75.2°F
Daily sunshine 8.2 hrs
Avg rainfall 92 mm 3.6 ins
Rainy days 9 days
Sea temperature 27.5°C 81.5°F
Humidity 77%
Windspeed 11.2kph 7 mph

On average September is the 2nd driest month of the year in Brookhaven with around 92mm 3.6 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 8.2 hours of sunshine per day.

September temperatures in Brookhaven

Brookhaven average temperature in September

September rainfall

Brookhaven average rain in September

September hourly sunshine

Brookhaven 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 Brookhaven 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

Brookhaven weather stats

Brookhaven weather statistics
Hottest month: July 32.5°C 90.5°F
Driest month: October 83mm 3.3ins
Sunniest month: June 10.2hrs
Coldest month: January 13.3°C 55.9°F
Wettest month: December 163mm 6.4ins
Map showing location of Brookhaven (31.57906, -90.44065) Brookhaven map pin © Google

Locations nearby

Top United States locations