Charleston Weather in August

August in Charleston sees daytime temperatures around 32°C (90°F) and lows of 20°C (68°F) at night. As the driest month of the year.

Rainfall in Charleston in August

You can expect the least amount of rain of the year this month, making it perfect for outdoor events and activities. Looking at the last 30 years, the data shows about 9 days with rain, averaging 71 mm (2.8 in) 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

Daytime highs in Charleston in August reach 32°C (90°F), with nights around 20°C (68°F). It's usually most comfortable outside during the morning and later in the day. With lows of 20°C (68°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

If you prefer dry days with pleasant temperatures, September typically offers 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.