Typical Weather in Charleston, SC in August
87° F Avg High
76° F Avg Low
8 Rainy Days
☀️ Temperature Summary
August is a popular time of year to visit, with an inviting climate characterized by warm temperatures. Highs in August are typically around 87°F, which is warmer than usual in Charleston. Overnight lows will be around 76°F on average.
Be ready to seek shade during the day, as mid-day temperatures can be dangerous if you're caught without a way to cool off. If you want to avoid the August heat, you may consider visiting in September instead, when highs are often closer to 83°.
High Temps Throughout the Year
☔ Rain Summary
You can expect about a 27% chance of rain for any given day in August. It's one of the rainier months of the year for Charleston, with total rainfall for the month around 6 inches.
Rainfall Throughout the Year
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