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San Gregorio State Beach Surf Forecast
/ CAL – San Mateo (15 breaks) / California (404 breaks) /
Surf Forecasts:
San Gregorio State Beach surfForecast / CAL – San Mateo / USA
48hr Weather and Surf, issued 4 pm Saturday 21 Mar 2026 PDTForecast update in hr min s Forecast update imminent
San Gregorio State Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's San Gregorio State Beach sea temperature is
13.3° C
(Which is 1.1°C warmer than normal for this time of year)How big are the waves at San Gregorio State Beach today?
The current surf forecast for San Gregorio State Beach at 10PM is: 3.0m 9s primary swell from a West-northwest direction and 0.5m 14s secondary swell from a South-southwest direction, 0.1m 22s secondary swell from a Southwest direction (forecast issued at 04:00pm March 21). The wind direction is predicted to be cross-onshore and the swell rating is 11.
| Time (PDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Mar) | - | - |
| Afternoon (21 Mar) | 7.5ft (2.3m) | 9s |
| Evening (21 Mar) | 10ft (3.0m) | 9s |
Table - waves today at San Gregorio State Beach. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 21 | Sunday 22 | Monday 23 | Tuesday 24 | |||||||||||||||||||||
| 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 | 8 AM | 11 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 9 | 8 | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 10 | 11 | 11 | 10 | 10 | 10 | 11 | 11 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 783 | 864 | 1281 | 1338 | 1368 | 1183 | 1001 | 815 | 733 | 968 | 643 | 626 | 623 | 608 | 572 | 565 | 773 | 690 | 458 | 401 | 216 | 225 | 234 | 275 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross- on | cross- on | glass | cross | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross | cross | cross | cross- off | cross- on |
High Tide / height (m) | 1:26PM 1.87 | 12:58AM 2.35 | 2:31PM 1.75 | 1:41AM 2.33 | 3:49PM 1.65 | 2:33AM 2.27 | ||||||||||||||||||
Low Tide / height (m) | 6:47PM 0.97 | 8:01AM 0.32 | 7:27PM 1.13 | 9:02AM 0.32 | 8:16PM 1.28 | 10:13AM 0.34 | ||||||||||||||||||
Saturday 21 | Sunday 22 | Monday 23 | Tuesday 24 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | 7:09 | - | - | - | - | - | - | - | 7:09 | - | - | - | - | - | - | - | 7:07 | - |
| Sunset | - | 7:22 | - | - | - | - | - | - | - | 7:22 | - | - | - | - | - | - | - | 7:22 | - | - | - | - | - | - |
 |  |  | | | | | | | | | | |  | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 16 | 15 | 12 | 11 | 10 | 11 | 12 | 15 | 16 | 14 | 11 | 10 | 10 | 10 | 11 | 15 | 17 | 15 | 12 | 12 | 12 | 13 | 14 | 18 |
| Feels °C (?) | 12 | 11 | 8 | 7 | 7 | 9 | 10 | 11 | 12 | 10 | 8 | 6 | 6 | 6 | 8 | 12 | 13 | 11 | 8 | 8 | 9 | 10 | 11 | 13 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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