New London Weather in September

What's the weather like in New London (Missouri) in September 2025?

The climate in New London during September can be summarized as warm and damp.

September is in the fall / autumn in New London and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 26°C (79°F), whilst at night 13°C (55°F) is normal.

New London weather averages (imperial / metric)
Daytime temperature 26.1°C 78.9°F
Nightly temperature 12.8°C 55°F
Average temperature 19.4°C 66.9°F
Daily sunshine 8.4 hrs
Avg rainfall 101 mm 4 ins
Rainy days 9 days
Sea temperature 20.4°C 68.7°F
Humidity 72%
Windspeed 14.8kph 9 mph

On average September is the 3rd wettest month of the year in New London with around 101mm 4 inches of rain making it a 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 8.4 hours of sunshine per day.

September temperatures in New London

New London average temperature in September

September rainfall

New London average rain in September

September hourly sunshine

New London 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 New London 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

New London weather stats

New London weather statistics
Hottest month: July 30.8°C 87.4°F
Driest month: January 40mm 1.6ins
Sunniest month: July 10.8hrs
Coldest month: January 0.7°C 33.3°F
Wettest month: May 112mm 4.4ins
Map showing location of New London (39.58532, -91.40098) New London map pin © Google

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