The highest day temperature in August 2024 was 95°F. The lowest night temperature was 74°F. The average values for day and night temperatures during August were 88.2°F и 79.5°F respectivly.

The average sea surface temperature in August 2024 for Charleston was 86.7°F. The maximum and minimum values were 83.6°F and 89.2°F respectively.

You can expect various weather conditions during August. Be ready for sunny, cloudy or even gloomy days.

Precipitation total in August for Charleston is 5.7 in. It makes august the most rainy month of the year.

The average wind speed in August is 7.7 mph. This value is relatively stable throughout the year.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Charleston in August is 7.7 hours.