Charleston Rainfall Forecast

Today 31 Aug
45%
Mon 1 Sep
5%
Tue 2 Sep
10%
Wed 3 Sep
20%
Thu 4 Sep
25%
Fri 5 Sep
15%
Sat 6 Sep
15%

Charleston Rainfall Statistics

August Rainfall

Charleston Executive Airport (6.8 miles)

Total Rainfall 2025
31.3in
Daily Average 2025
0.1in
Wettest Day 23 August, 2025
6.6in
Wet Days 2025
63/243 (26%)
Total Rainfall July
5in
Daily Average July
0.2in
Wettest Day 29 July, 2025
1.5in
Wet Days July
12/31 (39%)
Total Rainfall August
14.9in
Daily Average August
0.6in
Wettest Day 23 August, 2025
6.6in
Wet Days August
13/31 (42%)

Climate (2010–Present)

Charleston Executive Airport (6.8 miles)

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Annual Average 2020–2024
26.3in
Monthly Average 2020–2025
2in
Daily Average 2020–2025
0.1in
Wettest Day 23 August, 2025
6.6in

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