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Gray Whale Cove Surf Forecast
/ CAL – San Mateo (15 breaks) / California (404 breaks) /
Surf Forecasts:
Gray Whale Cove surfForecast / CAL – San Mateo / USA
48hr Weather and Surf, issued 10 am Wednesday 20 May 2026 PDTForecast update in hr min s Forecast update imminent
Gray Whale Cove surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Gray Whale Cove sea temperature is
13.2° C
(Which is slightly warmer than usual)How big are the waves at Gray Whale Cove today?
The current surf forecast for Gray Whale Cove at 3PM is: 1.3m 10s primary swell from a West-northwest direction and 0.7m 12s secondary swell from a West direction (forecast issued at 10:00am May 20). The wind direction is predicted to be onshore.
| Time (PDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 May) | 4.5ft (1.4m) | 10s |
| Afternoon (20 May) | 4.5ft (1.3m) | 10s |
| Evening (20 May) | 4ft (1.2m) | 10s |
Table - waves today at Gray Whale Cove. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 14°C on Thu morning, min 10°C on Wed night). Wind will be generally light. | ||||||||||||||||||||||||
Wednesday 20 | Thursday 21 | Friday 22 | Sat 23 | |||||||||||||||||||||
8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 9 | WNW 10 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | |
378 | 370 | 305 | 312 | 258 | 258 | 293 | 619 | 575 | 496 | 379 | 359 | 308 | 302 | 296 | 298 | 286 | 286 | 281 | 286 | 263 | 223 | 218 | 179 | |
Wind (km/h) | ||||||||||||||||||||||||
on | on | on | on | on | on | cross-on | cross-on | cross-on | on | on | on | on | on | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross | cross | cross | cross | |
High Tide | 3:45PM2.04m | 2:16AM2.44m | 4:44PM2.09m | 3:23AM2.24m | 5:38PM2.15m | 4:38AM2.06m | ||||||||||||||||||
Low Tide | 8:41AM0.00m | 8:32PM1.43m | 9:38AM0.15m | 9:51PM1.40m | 10:34AM0.31m | 11:14PM1.30m | ||||||||||||||||||
 | | | | |  | | |  | | | | | | | | | | | | | | | | |
 | 5:56 | — | — | — | — | — | — | 5:56 | — | — | — | — | — | — | — | 5:54 | — | — | — | — | — | — | — | 5:54 |
 | — | — | — | — | 8:15 | — | — | — | — | — | — | — | 8:16 | — | — | — | — | — | — | — | 8:17 | — | — | 8:17 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 11 | 13 | 13 | 12 | 10 | 10 | 10 | 10 | 11 | 14 | 13 | 12 | 11 | 10 | 10 | 10 | 11 | 13 | 13 | 13 | 12 | 12 | 12 | 11 |
10 | 11 | 10 | 10 | 8 | 9 | 9 | 8 | 10 | 12 | 10 | 9 | 10 | 8 | 8 | 8 | 9 | 10 | 10 | 10 | 9 | 9 | 9 | 8 | |
Swell 1 Height (m) Direction Period (s) | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 9 | WNW 10 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 |
 kJ | 378 | 370 | 305 | 312 | 258 | 258 | 293 | 619 | 575 | 496 | 379 | 359 | 308 | 302 | 296 | 298 | 286 | 286 | 281 | 286 | 263 | 223 | 218 | 179 |
Swell 2 Height (m) Direction Period (s) | W 13 | W 13 | W 12 | W 12 | W 12 | W 12 | WNW 12 | SW 19 | SW 19 | SW 19 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 18 | SW 18 | SW 18 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 |
| kJ | 212 | 161 | 153 | 146 | 137 | 134 | 220 | 133 | 184 | 133 | 36 | 82 | 82 | 82 | 78 | 54 | 109 | 109 | 109 | 77 | 75 | 77 | 107 | 115 |
Swell 3 Height (m) Direction Period (s) | SW 21 | SW 21 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 19 | SSW 13 | SSW 12 | SSW 12 | S 12 | SW 18 | SW 15 | SW 14 | SW 14 | SW 18 | SW 18 | SSW 12 | S 12 | S 12 |
| kJ | 162 | 72 | 40 | 87 | 84 | 80 | 35 | 35 | 36 | 36 | 96 | 16 | 15 | 15 | 11 | 79 | 75 | 54 | 54 | 80 | 49 | 14 | 11 | 26 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SSE 2 | S 3 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 27 | 27 | 27 | 64 | 27 | 2 | 2 | 2 | 2 | 27 | 64 | 64 | 27 | 15 | 27 | 2 | 2 | 2 | 117 | 69 | 69 | 37 | 27 | 27 |
Best forecast wave conditions in San Mateo | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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