Davenport Weather in September

What's the weather like in Davenport (Iowa) in September 2025?

The climate in Davenport during September can be summarized as warm and a little damp.

September is in the fall / autumn in Davenport and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 25°C (77°F), whilst at night 12°C (54°F) is normal.

Davenport weather averages (imperial / metric)
Daytime temperature 24.9°C 76.8°F
Nightly temperature 12.3°C 54.1°F
Average temperature 18.6°C 65.5°F
Daily sunshine 8.1 hrs
Avg rainfall 96 mm 3.8 ins
Rainy days 9 days
Sea temperature 18.8°C 65.8°F
Humidity 73%
Windspeed 14.4kph 9 mph

On average September is the 4th wettest month of the year in Davenport with around 96mm 3.8 inches of rain making it a a little damp 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 8.1 hours of sunshine per day.

September temperatures in Davenport

Davenport average temperature in September

September rainfall

Davenport average rain in September

September hourly sunshine

Davenport 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 Davenport 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

Davenport weather stats

Davenport weather statistics
Hottest month: July 29.9°C 85.8°F
Driest month: February 26mm 1ins
Sunniest month: July 10.6hrs
Coldest month: January -2.3°C 27.9°F
Wettest month: July 114mm 4.5ins
Map showing location of Davenport (41.52364, -90.57764) Davenport map pin © Google

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