Charleston Weather in August

Charleston in August averages 30°C (86°F) during the day and 18°C (64°F) at night. Keep in mind that quite a bit of rainfall is expected this month.

Rainfall in Charleston in August

Climate statistics over the past 30 years suggest around 12 days of rain, with 87 mm (3.4 in) average for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Charleston in August

August in Charleston brings typical temperatures with highs around 30°C (86°F) and lows of 18°C (64°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. At 18°C (64°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping. This month tends to be the warmest of the year. Light, comfortable clothing will serve you well.

For Charleston itself, April, September and October generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.