San Francisco Bay - South Basin Rainfall Forecast

Today 16 Aug
15%
Mon 17 Aug
No Rain
Tue 18 Aug
No Rain
Wed 19 Aug
No Rain
Thu 20 Aug
No Rain
Fri 21 Aug
No Rain
Sat 22 Aug
No Rain

San Francisco Bay - South Basin Rainfall Statistics

August Rainfall

San Francisco, San Francisco International Airport (6.8 miles)

Total Rainfall 2026
10.8in
Daily Average 2026
0.05in
Wettest Day 4 January, 2026
1.3in
Wet Days 2026
32/228 (14%)
Total Rainfall July
0in
Daily Average July
0in
Wettest Day 1 July, 2026
0in
Wet Days July
–
Total Rainfall August
0.02in
Daily Average August
0in
Wettest Day 14 August, 2026
0.02in
Wet Days August
1/16 (6%)

Climate (2021–2025)

San Francisco, San Francisco International Airport (6.8 miles)

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Annual Average 2021–2025
20.2in
Monthly Average 2021–2026
1.8in
Daily Average 2021–2026
0.1in
Wettest Day 24 October, 2021
4in

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