Emerald Isle Weather in September

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

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

September is in the fall / autumn in Emerald Isle 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.

Emerald Isle weather averages (imperial / metric)
Daytime temperature 28.9°C 84°F
Nightly temperature 19.1°C 66.4°F
Average temperature 24°C 75.2°F
Daily sunshine 8.2 hrs
Avg rainfall 136 mm 5.4 ins
Rainy days 9 days
Sea temperature 26.6°C 79.9°F
Humidity 79%
Windspeed 14.4kph 9 mph

On average September is the 3rd wettest month of the year in Emerald Isle with around 136mm 5.4 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 Emerald Isle

Emerald Isle average temperature in September

September rainfall

Emerald Isle average rain in September

September hourly sunshine

Emerald Isle 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 Emerald Isle 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

Emerald Isle weather stats

Emerald Isle weather statistics
Hottest month: July 31°C 87.8°F
Driest month: April 73mm 2.9ins
Sunniest month: April 9.5hrs
Coldest month: January 12.5°C 54.5°F
Wettest month: July 177mm 7ins
Map showing location of Emerald Isle (34.67794, -76.95078) Emerald Isle map pin © Google

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