Williamston Weather in September

What's the weather like in Williamston (North Carolina) in September 2025?

The climate in Williamston during September can be summarized as warm, humid and damp.

September is in the fall / autumn in Williamston and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a muggy 28°C (82°F), whilst at night 16°C (61°F) is normal.

Williamston weather averages (imperial / metric)
Daytime temperature 27.9°C 82.1°F
Nightly temperature 16.2°C 61.1°F
Average temperature 22°C 71.6°F
Daily sunshine 8.2 hrs
Avg rainfall 109 mm 4.3 ins
Rainy days 8 days
Sea temperature 25.9°C 78.6°F
Humidity 77%
Windspeed 13.7kph 9 mph

On average September is the 4th wettest month of the year in Williamston with around 109mm 4.3 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 8.2 hours of sunshine per day.

September temperatures in Williamston

Williamston average temperature in September

September rainfall

Williamston average rain in September

September hourly sunshine

Williamston 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 Williamston 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

Williamston weather stats

Williamston weather statistics
Hottest month: July 31.1°C 88°F
Driest month: November 72mm 2.8ins
Sunniest month: April 9.3hrs
Coldest month: January 10.2°C 50.4°F
Wettest month: August 140mm 5.5ins
Map showing location of Williamston (35.8546, -77.05551) Williamston map pin © Google

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