Charleston in August

Hot and humid, with regular rainfall.

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Charleston weather in August

Hot and humid, with regular rainfall. Average highs of 30°C and lows of 25°C, with around 19 rainy days expected throughout the month.

While August isn't our top-rated month for Charleston, it has its own appeal — typically lower prices, fewer crowds, and a more local feel.

Average high
30°C
Average low
25°C
Rainy days
19 days
Best months to visit
April, May, October

What to do in Charleston in August

Whatever the weather, Charleston rewards curious visitors. Here are some of the best ways to spend your time:

Explore Dine Culture Nature Shopping Day trips

What to pack for August

Light breathable clothing, high-SPF sunscreen, a wide-brimmed hat, and a reusable water bottle are essential. Pack sandals and at least one light layer for air-conditioned interiors.

Browse other months

January
14C
Cool, with occasional showers.
February
17C
Cool, with occasional showers.
March
19C
Mild and comfortable, with occasional showers.
Recommended
April
23C
Mild and comfortable, with occasional showers.
Recommended
May
26C
Warm and pleasant, with some rainy days.
June
29C
Warm and pleasant, with regular rainfall.
July
31C
Hot and humid, with regular rainfall.
August (you are here)
30C
Hot and humid, with regular rainfall.
September
28C
Warm and pleasant, with some rainy days.
Recommended
October
24C
Mild and comfortable, with occasional showers.
November
19C
Mild and comfortable, with occasional showers.
December
17C
Cool, with occasional showers.

Book your August trip to Charleston

Find hotels, tours and experiences for the perfect escape.

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