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Charleston in August

A risky month — score 49 of 100

Typical August days in Charleston reach about 86°F with nights near 76°F. August is also the statistical peak of Atlantic hurricane season (the season runs June 1–November 30) — the averages hide that risk, so flexible plans matter.

Season note: August falls in Atlantic hurricane season (June 1–November 30), its statistical peak. That is climatology, not a forecast — but it is the one risk the averages cannot show.

What to pack for Charleston in August

• A waterproof shell — rain falls on about 12 days in a typical August.

Every packing line is triggered by a number on this page — the rules are on How we pick.

August vs. the alternatives

The whole year in Charleston

Averages are the 1991–2020 climate normals (NOAA National Centers for Environmental Information) for the station named on each page. Rain days = days with at least 0.01 in of precipitation. Daylight is computed for the middle of the month.