Saint Charles Weather in August

What's the weather like in Saint Charles (Missouri) in August 2024?

The climate in Saint Charles during August can be summarized as hot, humid and reasonably dry.

August is in the summer in Saint Charles and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a muggy 31°C (87°F), whilst at night 19°C (67°F) is normal.

Saint Charles weather averages (imperial / metric)
Daytime temperature 30.6°C 87.1°F
Nightly temperature 19.4°C 66.9°F
Average temperature 25°C 77°F
Daily sunshine 9.4 hrs
Avg rainfall 76 mm 3 ins
Rainy days 8 days
Sea temperature 22.6°C 72.7°F
Humidity 70%
Windspeed 13.7kph 9 mph

On average August is the 5th driest month of the year in Saint Charles with around 76mm 3 inches of rain making it a reasonably dry 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 9.4 hours of sunshine per day.

August temperatures in Saint Charles

Saint Charles average temperature in August

August rainfall

Saint Charles average rain in August

August hourly sunshine

Saint Charles average rain in August

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 Saint Charles in August 2024.

Other monthly averages

Best places to visit in August

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Saint Charles weather stats

Saint Charles weather statistics
Hottest month: July 31.5°C 88.7°F
Driest month: January 44mm 1.7ins
Sunniest month: July 10.7hrs
Coldest month: January 3°C 37.4°F
Wettest month: May 104mm 4.1ins
Map showing location of Saint Charles (38.78394, -90.48123) Saint Charles map pin © Google

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