Rock Port Weather in September

What's the weather like in Rock Port (Missouri) in September 2025?

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

September is in the fall / autumn in Rock Port and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 26°C (78°F), whilst at night 12°C (54°F) is normal.

Rock Port weather averages (imperial / metric)
Daytime temperature 25.8°C 78.4°F
Nightly temperature 12.4°C 54.3°F
Average temperature 19.1°C 66.4°F
Daily sunshine 8.6 hrs
Avg rainfall 93 mm 3.7 ins
Rainy days 9 days
Sea temperature 19.3°C 66.7°F
Humidity 71%
Windspeed 15.5kph 10 mph

On average September is the 5th wettest month of the year in Rock Port with around 93mm 3.7 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 8.6 hours of sunshine per day.

September temperatures in Rock Port

Rock Port average temperature in September

September rainfall

Rock Port average rain in September

September hourly sunshine

Rock Port 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 Rock Port 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

Rock Port weather stats

Rock Port weather statistics
Hottest month: July 31.4°C 88.5°F
Driest month: January 20mm 0.8ins
Sunniest month: July 11.5hrs
Coldest month: January 0.4°C 32.7°F
Wettest month: June 104mm 4.1ins
Map showing location of Rock Port (40.41111, -95.51693) Rock Port map pin © Google

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