Tybee Island Weather in September

What's the weather like in Tybee Island (Georgia) in September 2025?

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

September is in the fall / autumn in Tybee Island and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a muggy 29°C (84°F), whilst at night 21°C (69°F) is normal.

Tybee Island weather averages (imperial / metric)
Daytime temperature 29.1°C 84.4°F
Nightly temperature 20.5°C 68.9°F
Average temperature 24.8°C 76.6°F
Daily sunshine 7.7 hrs
Avg rainfall 138 mm 5.4 ins
Rainy days 10 days
Sea temperature 27.4°C 81.3°F
Humidity 78%
Windspeed 11.9kph 7 mph

On average September is the 3rd wettest month of the year in Tybee Island with around 138mm 5.4 inches of rain making it a wet time to visit. This rainfall is typically spread over 10 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 Tybee Island

Tybee Island average temperature in September

September rainfall

Tybee Island average rain in September

September hourly sunshine

Tybee Island 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 Tybee Island 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

Tybee Island weather stats

Tybee Island weather statistics
Hottest month: July 31.9°C 89.4°F
Driest month: November 50mm 2ins
Sunniest month: April 9.8hrs
Coldest month: January 14.6°C 58.3°F
Wettest month: August 188mm 7.4ins
Map showing location of Tybee Island (32.00022, -80.84567) Tybee Island map pin © Google

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