If you plan to visit Charleston in July, the weather is typically alright, with an average high temperature of +31°C during the day and approximately 3 sunny days. Expect some rainy, though, as there are typically 22 rainy days in the month and around 151 mm of precipitation. The weather is changeable so you may have to pack for every eventuality. Search flightsin one click on Avionero.
Average weather
☀️
+31°C
Avg. max. temperature
+18°C
Min.
+37°C
Max.
151 mm
Total precipitation
80%
Avg. humidity
3 m/s
Avg. wind
3 ☀️
Sunny Days
4 ⛅️
Cloudy
22 🌦
Rainy
Our opinion: Charleston has OK weather in July.
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Average temperature in Charleston in July
Here are the expected maximum, average and minimum temperatures in Charleston for July based on the historical data.
Last Year
Historical Data
Going from a maximum of +35°C during the day to a minimum of +22°C during the night, the temperature in July averages around +33°C.
The average maximum temperature goes down 8% by the end of the month, compared with the beginning of the month, from +31°C to +30°C.
Is Charleston warm or cold in July?
Charleston is typically hot in July.
Maximum temperatures go up compared to the previous month from +30°C to +31°C. The minimum temperature also goes up from +23°C to +25°C.
Make sure that you pack your summer linen and swimming costumes; it’s probably going to be hot.
July is one of the warmest months in Charleston, here is the comparison with other months:
Climate in Charleston in July
Charleston weather looks like this, on average, in July and the surrounding months.
June
July
August
Avg. temperature
+30°C
+31°C
+31°C
Min. temperature
+13°C
+18°C
+16°C
Max. temperature
+38°C
+37°C
+38°C
Rainfall
136 mm
151 mm
179 mm
Wind
3 m/s
3 m/s
2 m/s
Humidity
79%
80%
82%
Air pressure
1015 HPa
1016 HPa
1015 HPa
Sunny days
5
3
3
Cloudy days
4
4
3
Rainy days
19
22
23
Snowy days
0
0
0
July weather is still as ok as in June.It’s getting warmer as July arrives. The average maximum temperature goes up from +30°C to +31°C during the day.Prepare for more rain. Average rainfall goes from 136 mm to 151 mm.Humidity rises from 79% to 80%.The average wind speed doesn’t change much during July, staying around 3 m/s.The days becoming less sunny, going from 5 sunny days in June to 3 in July.
August brings much the same weather, it remains ok.
Wind speed in Charleston in July based on historical data.
Last Year
Historical Data
The average wind speed is 3 m/s getting up to 4 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Charleston is gradually increasing during July, going from 2 m/s to 2 m/s over the course of the month.
Rain
Amount of rainfall in mm during July in Charleston based on historical data.
Last Year
Historical Data
Typically, there is a 74% chance of rain on an average day in July, with total rainfall of approximately 322 mm. The maximum amount of rainfall per day is around 72 mm, which is considered heavy rain.July is a pretty wet month with over 23 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of galoshes.
July is one of the rainiest months in Charleston, here is a comparison with other months, total mm:
Charleston wettest month is August, where a typical day has a 74% chance of precipitation and 179 mm of rainfall per day. November, on the other hand, is the driest month with a mere 33% chance of precipitation and 68 mm of rainfall per day.
How was the weather last July in Charleston?
This is the weather in Charleston in July 2024:
1 July
☀️
+31°C
2 July
☀️
+33°C
3 July
☀️
+33°C
4 July
☀️
+34°C
5 July
🌧️
+32°C
6 July
🌧️
+33°C
7 July
☀️
+34°C
8 July
☀️
+32°C
9 July
☀️
+34°C
10 July
☀️
+32°C
11 July
☀️
+32°C
12 July
☀️
+33°C
13 July
☀️
+32°C
14 July
☀️
+33°C
15 July
☀️
+32°C
16 July
☀️
+35°C
17 July
☀️
+33°C
18 July
☀️
+34°C
19 July
☀️
+34°C
20 July
☀️
+35°C
21 July
☀️
+35°C
22 July
☀️
+34°C
23 July
☀️
+32°C
24 July
🌧️
+30°C
25 July
☀️
+32°C
26 July
☀️
+33°C
27 July
☀️
+33°C
28 July
🌧️
+30°C
29 July
🌧️
+31°C
30 July
☀️
+32°C
31 July
☀️
+30°C
In July 2024 Charleston had 26 sunny days, 0 cloudy days, and 5 rainy days. The average maximum temperature was +33°C, with an absolute maximum of +35°C and a minimum of +30°C. The average humidity was 81%, with a maximum of 99% and a minimum of 51%. The average wind speed was 3 m/s, with a maximum of 9 m/s and a minimum of 0 m/s.
Are you planning a trip in July?
Climate Change over Years
This is how Charleston climate have been changing during last 43 years period.
The climate in Charleston in July has not changed much over the last 43 years.
The average temperature was the lowest in 1988 (+22°C) and the highest in 2012 (+25°C). The driest year was 2011 with only 770 mm of rainfall, and the wettest year was 2024 with 2044 mm.
FAQ
Frequently asked questions about the weather in Charleston in July:
Is July a good time to visit Charleston?
It’s always a good time to visit Charleston, but the weather is changeable in July, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.
Can you sunbathe in Charleston in July?
Absolutely, July is hot in Charleston. Plan on beach and pool time, and ensure that you pack light and breathable options to stay comfortable.
Is Charleston rainy in July?
Charleston is often rainy in July. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.
Is it sunny in Charleston in July?
Usually, it’s not very sunny in Charleston in July, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.
For this page, we’ve looked at the typical weather in Charleston, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.
