Charleston Weather in April

The climate in Charleston during April can be summarized as mild and a little damp.

April is in the spring in Charleston and is typically the 6th coldest month of the year. Daytime maximum temperatures average around a cool 18°C (64°F), whilst at night 6°C (42°F) is normal.

On average April is the 4th wettest 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 12 days, although this may vary considerably.

On the flip side this corresponds to an average of 8 hours of sunshine per day.

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 April 2025.