Charleston Harbor - Fort Johnson Rainfall Forecast

Today 7 Aug
70%
Fri 8 Aug
60%
Sat 9 Aug
70%
Sun 10 Aug
80%
Mon 11 Aug
70%
Tue 12 Aug
50%
Wed 13 Aug
35%

Charleston Harbor - Fort Johnson Rainfall Statistics

August Rainfall

Charleston Executive Airport (6.8 miles)

Total Rainfall 2025
17.1in
Daily Average 2025
0.1in
Wettest Day 11 May, 2025
2.1in
Wet Days 2025
53/219 (24%)
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
0.7in
Daily Average August
0.2in
Wettest Day 1 August, 2025
0.5in
Wet Days August
3/7 (43%)

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 17 December, 2023
4.5in

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