Sea Temperature in Charleston in April

© George Randy Bass

Complete information on the sea temperature range in the Atlantic Ocean in Charleston in April. Historical daily data. Climate details for April. Tips on swimming conditions and beach relaxation in Charleston. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.

Charleston Climate and Swimming Opportunities in April

Charleston lies within the South Carolina in United States. The average daytime temperature in Charleston in April is 74°F (23°C), while the nighttime average is 55°F (13°C). There are typically eight rainy days during the month, with a total precipitation of 2.9 inches (74 mm). The daylight duration in April in Charleston is 13 hours, with an average of 9 hours of sunshine per day. The average wind speed in April is 11 mph (17 km/h), and the humidity level is around 68%.

The water temperature in Charleston in April ranges from 63°F to 70°F (17°C to 21°C). At the beginning of the month, the average temperature is around 64°F (18°C), shifting to 66°F (19°C) by mid-April and reaching 70°F (21°C) in the last ten days. Overall, the average sea temperature in Charleston for April is 66°F (19°C). Very comfortable swimming conditions. The water is fresh but not too cold, and the air temperature is pleasant.

Frequently Asked Questions About Water Temperatures in April in Charleston