Normal weather for Charleston in August
It's hot in August in Charleston with an average temperature of 32°C. Temperatures this month range from a low of 30°C to a high of 33°C. At night, you can expect temperatures between 23°C and 26°C.
In August, there is an average of 126 mm of precipitation, spread over 15 days. The wind speed is around 3 Bft, mostly coming from the South.
Charleston in August |
New York | ||
|---|---|---|---|
 Average Temperature |
32°C | 30°C | |
 High Temp |
33°C | 31°C | |
| Low Temp |
30°C | 28°C | |
 Total Precipitation |
126 mm | 79 mm | |
| Rainy Days |
15 days | 13 days | |
Start of August
The month of August starts in Charleston with hot temps, averaging around 32°C during the day and nights around 25°C. You can expect regular precipitation, but there will also be some sunny days in the early part of the month. Light clothing like shorts or a dress, and a hat and sunglasses are perfect.
Mid August
By mid-August, daytime temps rise to around 33°C, with nights around 25°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days. Light clothing like shorts or a dress, and a hat and sunglasses are perfect.
End of August
By the end of August, the average daytime temperature in Charleston is around 31°C, while nighttime temps are about 24°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days. Light clothing like shorts or a dress, and a hat and sunglasses are perfect.
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Water temperature
The water temperature at Charleston is 35°C this month. It’s really warm, perfect for a swim.
UV index
The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is August a good time to visit Charleston?
Looking for sun? August isn’t a good month to be in Charleston. The temperature is nice, but there’s too much chance of rain.
Temperature records for Charleston in August
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Daily Temperature in August in Charleston
This chart shows the average daily high and low temperatures in August for Charleston, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in August in Charleston
The chart below shows the average daily precipitation in August for Charleston, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for August, you can expect about 15 days of precipitation in Charleston.
Daily UV Index in August in Charleston
This chart shows the average daily UV index in August in Charleston, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in August in Charleston Over the Years
This chart shows the average temperature in August in Charleston, measured in degrees Celsius, over the past few years.
Total Precipitation in August in Charleston Over the Years
This chart shows the average precipitation in August in Charleston, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily Climate in August for Charleston
Click on any day in August to get detailed info about the usual weather on that day in Charleston. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in August in Charleston
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Average Weather in Charleston by Month
Click on a month below to see detailed weather info for Charleston. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Charleston for all months at once
