San Francisco Bay - Alameda Creek Entrance Rainfall Forecast

Today 27 Sep
5%
Mon 28 Sep
No Rain
Tue 29 Sep
No Rain
Wed 30 Sep
No Rain
Thu 1 Oct
No Rain
Fri 2 Oct
No Rain
Sat 3 Oct
No Rain

San Francisco Bay - Alameda Creek Entrance Rainfall Statistics

September Rainfall

Hayward, Hayward Air Terminal (4.3 miles)

Total Rainfall 2026
11.9in
Daily Average 2026
0.04in
Wettest Day 4 January, 2026
1.6in
Wet Days 2026
33/270 (12%)
Total Rainfall August
0in
Daily Average August
0in
Wettest Day 1 August, 2026
0in
Wet Days August
–
Total Rainfall September
0.1in
Daily Average September
0in
Wettest Day 3 September, 2026
0.1in
Wet Days September
1/27 (4%)

Climate (2021–2025)

Hayward, Hayward Air Terminal (4.3 miles)

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Annual Average 2021–2025
19.4in
Monthly Average 2021–2026
1.7in
Daily Average 2021–2026
0.1in
Wettest Day 31 December, 2022
4.3in

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