Kansas City Weather in September

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

The climate in Kansas City during September can be summarized as warm, humid and wet.

September is in the fall / autumn in Kansas City and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a muggy 27°C (80°F), whilst at night 15°C (59°F) is normal.

Kansas City weather averages (imperial / metric)
Daytime temperature 26.6°C 79.8°F
Nightly temperature 15.1°C 59.1°F
Average temperature 20.8°C 69.4°F
Daily sunshine 8.5 hrs
Avg rainfall 125 mm 4.9 ins
Rainy days 8 days
Sea temperature 20.1°C 68.2°F
Humidity 71%
Windspeed 15.5kph 10 mph

On average September is the 3rd wettest month of the year in Kansas City with around 125mm 4.9 inches of rain making it a wet time to visit. This rainfall is typically spread over 8 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 Kansas City

Kansas City average temperature in September

September rainfall

Kansas City average rain in September

September hourly sunshine

Kansas 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 Kansas 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

Kansas City weather stats

Kansas City weather statistics
Hottest month: July 31.8°C 89.2°F
Driest month: February 29mm 1.1ins
Sunniest month: July 11.3hrs
Coldest month: January 3.1°C 37.6°F
Wettest month: June 132mm 5.2ins
Map showing location of Kansas City (39.11417, -94.62746) Kansas City map pin © Google

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