Prince Frederick Weather in September

What's the weather like in Prince Frederick (Maryland) in September 2025?

The climate in Prince Frederick during September can be summarized as warm, humid and a little damp.

September is in the fall / autumn in Prince Frederick and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a muggy 26°C (79°F), whilst at night 15°C (59°F) is normal.

Prince Frederick weather averages (imperial / metric)
Daytime temperature 26.3°C 79.3°F
Nightly temperature 15°C 58.9°F
Average temperature 20.6°C 69.1°F
Daily sunshine 8.1 hrs
Avg rainfall 96 mm 3.8 ins
Rainy days 7 days
Sea temperature 21.7°C 71.1°F
Humidity 73%
Windspeed 13kph 8 mph

On average September is the 5th wettest month of the year in Prince Frederick with around 96mm 3.8 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 7 days, although this may vary considerably.

On the flip side this corresponds to an average of 8.1 hours of sunshine per day.

September temperatures in Prince Frederick

Prince Frederick average temperature in September

September rainfall

Prince Frederick average rain in September

September hourly sunshine

Prince Frederick 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 Prince Frederick in September 2025.

Other monthly averages

Best places to visit in September

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Current (hourly) weather 15 day forecast

Prince Frederick weather stats

Prince Frederick weather statistics
Hottest month: July 30.1°C 86.2°F
Driest month: February 74mm 2.9ins
Sunniest month: June 10.1hrs
Coldest month: January 5.5°C 41.9°F
Wettest month: August 106mm 4.2ins
Map showing location of Prince Frederick (38.5404, -76.5844) Prince Frederick map pin © Google

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