Charleston Weather in July

What's the weather like in Charleston (Missouri) in July 2025?

The climate in Charleston during July can be summarized as hot and a little damp.

July is in the summer in Charleston and is typically the warmest month of the year. Daytime maximum temperatures average around a warm 33°C (91°F), whilst at night 21°C (70°F) is normal.

Charleston weather averages (imperial / metric)
Daytime temperature 32.6°C 90.6°F
Nightly temperature 21.1°C 69.9°F
Average temperature 26.8°C 80.2°F
Daily sunshine 11 hrs
Avg rainfall 96 mm 3.8 ins
Rainy days 9 days
Sea temperature 22.2°C 72°F
Humidity 70%
Windspeed 12.2kph 8 mph

On average July is the 6th driest month of the year in Charleston with around 96mm 3.8 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 11 hours of sunshine per day.

July temperatures in Charleston

Charleston average temperature in July

July rainfall

Charleston average rain in July

July hourly sunshine

Charleston average rain in July

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 Charleston in July 2025.

Other monthly averages

Best places to visit in July

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Charleston weather stats

Charleston weather statistics
Hottest month: July 32.3°C 90.1°F
Driest month: October 75mm 3ins
Sunniest month: July 11hrs
Coldest month: January 5.2°C 41.4°F
Wettest month: May 128mm 5ins
Map showing location of Charleston (36.92089, -89.35063) Charleston map pin © Google

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