Avg High
Charleston in July
Verdict
In Charleston, July has a distinct summer feel. As the season moves along, the weather is warming up. You can usually expect a hot month that feels variable day to day. It often has a hot and tropical, with heavy bursts of rain breaking the heat feel, especially for outdoor plans.
Well suited to visitors who prefer a steady feel over dramatic shifts. A breeze can shift the feel of the day, especially later on.
Avg Low
Rain
Daylight
14h
What to expect
- Temperature feel - Warm-to-hot conditions that stay fairly consistent through the day. It can feel warmer than expected in the sun.
- Wet weather - Expect plenty of wet weather. Expect damp surfaces and slick paths. Outdoor plans benefit from flexibility.
- Sun & UV - Very strong sun. You can burn surprisingly quickly, so sun protection is strongly recommended. This is a 'don't forget the hat' month.
- Wind feel - Refreshing breezes, and gusts can make exposed walks feel cooler and more blustery. On the water or higher ground it feels stronger.
July in context
How it compares to the rest of the year in Charleston.
Hottest (avg)
#1 / 12
Wettest (avg)
#2 / 12
Daylight Hours
#2 / 12
Windiest (avg)
#11 / 12
Highest UV
#2 / 12
Most Humid
#2 / 12
Temperature
- Daytime high
-
- Nighttime low
-
- Feels like (avg)
-
Sunshine
- Daylight
- 14.1 hours
- UV index (max)
- 9
- Typical sun hours
- 05:22 – 19:26
Rain & Snow
- Total
-
- Rainy days
- 21
- Cloud cover
- 59%
- Snowfall
-
Humidity & Wind
- Humidity (avg)
- 80%
- Wind (avg)
-
- Wind (max gusts)
-
Frequently asked questions
Is July a good time to visit Charleston?
Typical July days in Charleston reach highs of 30°C (86°F) with nights around 25°C (77°F). It usually feels hot by day and warm after dark. It is among the wetter months, so it is wise to have some indoor backup plans or flexible activities.
What are temperatures like in July?
Daytime temperatures in July typically peak near 30°C (86°F), while nights drop to around 25°C (77°F). Expect hot afternoons and warm evenings.
How much does it rain in July?
Rainfall in July averages 136 mm (5.4 in) across roughly 21 days. Overall it is a very wet time of year, so a light rain jacket and waterproof shoes are very handy.
How many hours of daylight are there in July?
You can expect about 14 hours of daylight in July. Sunrise is typically around 05:22 and sunset near 19:26. You get long days with comfortable amounts of daylight.
How strong is the sun in July?
UV levels frequently reach very high levels (around 9), so strong sun protection is essential, especially around midday.
Is it windy in July?
In July, average wind speeds are around 12 km/h (7 mph), with gusts on the windiest days reaching about 45 km/h (28 mph). On the ground, it is it often feels breezy, especially in more exposed spots or along the coast.