San Francisco Bay - San Lorenzo Creek Entrance Rainfall Forecast

Today 8 May
No Rain
Sat 9 May
No Rain
Sun 10 May
No Rain
Mon 11 May
No Rain
Tue 12 May
No Rain
Wed 13 May
5%
Thu 14 May
5%

San Francisco Bay - San Lorenzo Creek Entrance Rainfall Statistics

May Rainfall

Hayward, Hayward Air Terminal (2.5 miles)

Total Rainfall 2026
11.5in
Daily Average 2026
0.1in
Wettest Day 4 January, 2026
1.6in
Wet Days 2026
29/128 (23%)
Total Rainfall April
4.4in
Daily Average April
0.1in
Wettest Day 20 April, 2026
1.4in
Wet Days April
10/30 (33%)
Total Rainfall May
0.1in
Daily Average May
0.01in
Wettest Day 5 May, 2026
0.1in
Wet Days May
1/8 (13%)

Climate (2010–Present)

Hayward, Hayward Air Terminal (2.5 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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