Gray Whale Cove State Beach (Devils Slide) Rainfall Forecast

Today 27 May
45%
Thu 28 May
50%
Fri 29 May
5%
Sat 30 May
No Rain
Sun 31 May
5%
Mon 1 Jun
No Rain
Tue 2 Jun
5%

Gray Whale Cove State Beach (Devils Slide) Rainfall Statistics

May Rainfall

Half Moon Bay Airport (3.1 miles)

Total Rainfall 2026
6.8in
Daily Average 2026
0.05in
Wettest Day 16 February, 2026
1.1in
Wet Days 2026
30/147 (20%)
Total Rainfall April
2.2in
Daily Average April
0.1in
Wettest Day 10 April, 2026
0.7in
Wet Days April
7/30 (23%)
Total Rainfall May
0.1in
Daily Average May
0in
Wettest Day 5 May, 2026
0.1in
Wet Days May
1/27 (4%)

Climate (2010–Present)

Half Moon Bay Airport (3.1 miles)

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Annual Average 2021–2025
20.4in
Monthly Average 2021–2026
1.8in
Daily Average 2021–2026
0.1in
Wettest Day 24 October, 2021
3.5in

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