Martinsburg Weather in September

What's the weather like in Martinsburg (West Virginia) in September 2025?

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

September is in the fall / autumn in Martinsburg and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 26°C (78°F), whilst at night 13°C (55°F) is normal.

Martinsburg weather averages (imperial / metric)
Daytime temperature 25.8°C 78.4°F
Nightly temperature 12.6°C 54.7°F
Average temperature 19.2°C 66.6°F
Daily sunshine 7.7 hrs
Avg rainfall 76 mm 3 ins
Rainy days 9 days
Sea temperature 21.4°C 70.6°F
Humidity 75%
Windspeed 11.2kph 7 mph

On average September is the 4th driest month of the year in Martinsburg with around 76mm 3 inches of rain making it a reasonably dry 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 7.7 hours of sunshine per day.

September temperatures in Martinsburg

Martinsburg average temperature in September

September rainfall

Martinsburg average rain in September

September hourly sunshine

Martinsburg 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 Martinsburg 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

Martinsburg weather stats

Martinsburg weather statistics
Hottest month: July 30.1°C 86.2°F
Driest month: January 62mm 2.4ins
Sunniest month: July 9.6hrs
Coldest month: January 3.7°C 38.7°F
Wettest month: May 101mm 4ins
Map showing location of Martinsburg (39.45621, -77.96389) Martinsburg map pin © Google

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