Swansboro Weather in September

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

The climate in Swansboro during September can be summarized as hot, humid and wet.

September is in the fall / autumn in Swansboro and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a muggy 29°C (84°F), whilst at night 19°C (66°F) is normal.

Swansboro weather averages (imperial / metric)
Daytime temperature 28.9°C 84°F
Nightly temperature 18.7°C 65.7°F
Average temperature 23.8°C 74.8°F
Daily sunshine 8.2 hrs
Avg rainfall 130 mm 5.1 ins
Rainy days 9 days
Sea temperature 26.9°C 80.3°F
Humidity 79%
Windspeed 14.4kph 9 mph

On average September is the 3rd wettest month of the year in Swansboro with around 130mm 5.1 inches of rain making it a wet 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 Swansboro

Swansboro average temperature in September

September rainfall

Swansboro average rain in September

September hourly sunshine

Swansboro 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 Swansboro 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

Swansboro weather stats

Swansboro weather statistics
Hottest month: July 31.2°C 88.2°F
Driest month: April 75mm 3ins
Sunniest month: April 9.5hrs
Coldest month: January 12.4°C 54.3°F
Wettest month: July 184mm 7.2ins
Map showing location of Swansboro (34.68766, -77.11912) Swansboro map pin © Google

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