Gray Whale Cove State Beach (Devils Slide) Rainfall Forecast

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

Gray Whale Cove State Beach (Devils Slide) Rainfall Statistics

August Rainfall

Half Moon Bay Airport (3.1 miles)

Total Rainfall 2025
6.4in
Daily Average 2025
0.03in
Wettest Day 13 February, 2025
1.1in
Wet Days 2025
37/228 (16%)
Total Rainfall July
0.1in
Daily Average July
0in
Wettest Day 15 July, 2025
0.02in
Wet Days July
5/31 (16%)
Total Rainfall August
0.01in
Daily Average August
0in
Wettest Day 14 August, 2025
0.01in
Wet Days August
1/16 (6%)

Climate (2010–Present)

Half Moon Bay Airport (3.1 miles)

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Annual Average 2020–2024
19.1in
Monthly Average 2020–2025
1.7in
Daily Average 2020–2025
0.1in
Wettest Day 24 October, 2021
3.5in

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