Webster City Weather in September

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

The climate in Webster City during September can be summarized as mild and a little damp.

September is in the fall / autumn in Webster City and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 24°C (75°F), whilst at night 10°C (51°F) is normal.

Webster City weather averages (imperial / metric)
Daytime temperature 23.6°C 74.5°F
Nightly temperature 10.4°C 50.7°F
Average temperature 17°C 62.6°F
Daily sunshine 8.5 hrs
Avg rainfall 89 mm 3.5 ins
Rainy days 9 days
Sea temperature 18.2°C 64.8°F
Humidity 72%
Windspeed 16.6kph 10 mph

On average September is the 5th wettest month of the year in Webster City with around 89mm 3.5 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 8.5 hours of sunshine per day.

September temperatures in Webster City

Webster City average temperature in September

September rainfall

Webster City average rain in September

September hourly sunshine

Webster City 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 Webster City 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

Webster City weather stats

Webster City weather statistics
Hottest month: July 29.3°C 84.7°F
Driest month: January 22mm 0.9ins
Sunniest month: July 11.5hrs
Coldest month: January -3.8°C 25.2°F
Wettest month: June 123mm 4.8ins
Map showing location of Webster City (42.46942, -93.81605) Webster City map pin © Google

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