Surf Forecasts:
How big are the waves at San Gregorio State Beach today (21 Sep):
- Morning surf: Morning surf (21 Sep, local time) - 2.5ft (0.7m), 17s period with SW swell.
- Afternoon surf: Afternoon surf (21 Sep, local time) - 2.5ft (0.8m), 17s period with SSW swell.
- Evening surf: Evening surf (21 Sep, local time) - 2.5ft (0.7m), 17s period with SW swell.
The current surf forecast for San Gregorio State Beach at 3PM is: 0.8m 17s primary swell from a South-southwest direction and 1.2m 7s secondary swell from a West-northwest direction, 0.9m 7s secondary swell from a West-northwest direction (forecast issued at 10:00am September 21). The wind direction is predicted to be onshore.
| Time (PDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Sep) | 2.5ft (0.7m) | 17s |
| Afternoon (21 Sep) | 2.5ft (0.8m) | 17s |
| Evening (21 Sep) | 2.5ft (0.7m) | 17s |
Table - waves today at San Gregorio State Beach. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 20°C on Wed afternoon, min 13°C on Mon night). Wind will be generally light. | ||||||||||||||||||||||
Monday 21 | Tuesday 22 | Wednesday 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 | |
Swell Height Map |  |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | SW 17 | SSW 17 | SSW 17 | SW 17 | SW 17 | SW 17 | SSW 17 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 |
Wave Graph  | ||||||||||||||||||||||
 kJ | 291 | 355 | 360 | 291 | 295 | 295 | 373 | 315 | 307 | 280 | 274 | 274 | 394 | 929 | 971 | 865 | 765 | 688 | 601 | 430 | 584 | 572 |
Wind (km/h) | ||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | on | cross-on | on | glassy | cross-on | glassy | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | glassy | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 8:58AM1.73m | 7:25PM1.99m | 9:23AM1.80m | 8:15PM2.04m | 9:45AM1.88m | 9:01PM2.07m | ||||||||||||||||
Low Tide | 1:45PM1.34m | 2:36AM0.49m | 2:31PM1.22m | 3:10AM0.47m | 3:12PM1.08m | |||||||||||||||||
 | | | |  |  | | | |  | |  | | |  | | | | | | | | |
 | 6:56 | — | — | — | — | — | — | 6:56 | — | — | — | — | — | — | — | 6:56 | — | — | — | — | — | — |
 | — | — | — | 7:07 | — | — | — | — | — | — | — | 7:07 | — | — | — | — | — | — | — | 7:05 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 15 | 16 | 15 | 13 | 13 | 13 | 13 | 13 | 16 | 17 | 16 | 13 | 13 | 13 | 13 | 14 | 18 | 20 | 19 | 15 | 16 |
Feels °C | 13 | 14 | 15 | 14 | 12 | 12 | 13 | 13 | 13 | 16 | 15 | 14 | 11 | 12 | 12 | 12 | 14 | 18 | 18 | 17 | 13 | 15 |
Swell 1 Height (m) Direction Period (s) | NW 7 | NW 7 | NW 7 | WNW 7 | WNW 7 | WNW 7 | WNW 9 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 13 | WNW 8 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 |
| kJ | 122 | 122 | 122 | 142 | 111 | 111 | 252 | 315 | 307 | 280 | 274 | 231 | 394 | 929 | 971 | 865 | 765 | 688 | 601 | 430 | 584 | 572 |
Swell 2 Height (m) Direction Period (s) | SW 17 | SSW 17 | SSW 17 | SW 17 | SW 17 | SW 17 | SSW 17 | SW 17 | SW 16 | SW 16 | WNW 13 | SW 16 | WNW 12 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | WNW 11 | SW 15 | SW 15 |
| kJ | 291 | 355 | 360 | 291 | 295 | 295 | 373 | 291 | 271 | 258 | 198 | 261 | 172 | 261 | 261 | 258 | 258 | 248 | 229 | 161 | 217 | 217 |
Swell 3 Height (m) Direction Period (s) | SSW 13 | S 13 | S 13 | SSW 13 | WNW 9 | WNW 9 | SSW 12 | WNW 15 | WNW 15 | WNW 14 | SW 16 | S 12 | SW 16 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | SW 15 | S 11 | S 13 |
| kJ | 33 | 53 | 52 | 32 | 32 | 54 | 28 | 89 | 121 | 163 | 258 | 24 | 261 | 10 | 10 | 9 | 9 | 9 | 9 | 223 | 9 | 29 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | WNW 8 | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 274 | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||
Distance (km) | 27 | 128 | 54 | 54 | 42 | 42 | 0 | 25 | 0 | 44 | 54 | 54 | 44 | 25 | 19 | 19 | 0 | 14 | 68 | 54 | 19 | 19 |
Best forecast wave conditions in San Mateo | ||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||
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