Surf Forecasts:
How big are the waves at The Patch today (20 Sep):
- Morning surf: Morning surf (20 Sep, local time) - 2ft (0.6m), 18s period with SW swell.
- Afternoon surf: Afternoon surf (20 Sep, local time) - 2.5ft (0.7m), 18s period with SW swell.
- Evening surf: Evening surf (20 Sep, local time) - 2.5ft (0.7m), 18s period with SW swell.
The current surf forecast for The Patch at 2AM is: 0.6m 18s primary swell from a Southwest direction and 0.4m 13s secondary swell from a Southwest direction, 1.5m 7s secondary swell from a West-northwest direction (forecast issued at 10:00pm September 19). The wind direction is predicted to be cross-offshore.
| Time (PDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Sep) | 2ft (0.6m) | 18s |
| Afternoon (20 Sep) | 2.5ft (0.7m) | 18s |
| Evening (20 Sep) | 2.5ft (0.7m) | 18s |
Table - waves today at The Patch. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 17°C on Sun afternoon, min 13°C on Sat night). Wind will be generally light. | ||||||||||||||||||
Sat 19 | Sunday 20 | Monday 21 | ||||||||||||||||
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) | WNW 7 | WNW 7 | SW 18 | NW 7 | SW 18 | NW 7 | SW 18 | SW 19 | SW 18 | SW 18 | SW 18 | SW 17 | SW 17 | SW 17 | SW 17 | SW 17 | SW 17 | SW 17 |
Wave Graph  | ||||||||||||||||||
 kJ | 311 | 329 | 252 | 309 | 199 | 268 | 318 | 339 | 318 | 304 | 300 | 293 | 350 | 346 | 346 | 408 | 408 | 413 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-on | cross | cross | cross-off | cross |
High Tide | 6:04PM1.09m | 9:23AM0.94m | 7:12PM1.10m | 9:55AM0.98m | 8:14PM1.13m | |||||||||||||
Low Tide | 2:21AM0.13m | 2:37PM0.62m | 3:15AM0.10m | 3:28PM0.57m | ||||||||||||||
 | | |  |  | | | | | | | |  |  | | | | | |
 | — | — | — | 6:56 | — | — | — | — | — | — | — | 6:56 | — | — | — | — | — | — |
 | — | — | — | — | — | — | — | 7:10 | — | — | — | — | — | — | — | 7:08 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 13 | 13 | 13 | 13 | 16 | 17 | 15 | 13 | 13 | 13 | 13 | 13 | 16 | 17 | 15 | 13 | 13 |
Feels °C | 9 | 11 | 11 | 12 | 12 | 15 | 16 | 13 | 11 | 11 | 11 | 12 | 12 | 15 | 16 | 13 | 11 | 12 |
Swell 1 Height (m) Direction Period (s) | SW 18 | SW 18 | SW 18 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | SW 19 | SW 18 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | WNW 8 | WNW 8 | WNW 7 | WNW 9 | WNW 9 |
| kJ | 252 | 252 | 252 | 173 | 164 | 153 | 134 | 339 | 318 | 148 | 153 | 157 | 134 | 142 | 128 | 76 | 151 | 227 |
Swell 2 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 13 | SW 18 | SW 18 | SW 18 | SW 18 | SSW 12 | SSW 12 | SW 18 | SW 18 | SW 17 | SW 17 | SW 17 | SW 17 | SW 17 | SW 17 | SW 17 |
| kJ | 44 | 44 | 42 | 199 | 199 | 258 | 318 | 29 | 14 | 304 | 300 | 293 | 350 | 346 | 346 | 408 | 408 | 413 |
Swell 3 Height (m) Direction Period (s) | S 10 | S 10 | S 9 | SW 12 | SW 12 | SW 12 | SSW 12 | S 9 | S 9 | SSW 12 | SSW 12 | SSW 12 | SSW 13 | SSW 13 | SSW 13 | WNW 9 | W 18 | WNW 16 |
| kJ | 8 | 7 | 7 | 39 | 38 | 38 | 29 | 2 | 2 | 29 | 29 | 30 | 33 | 33 | 32 | 32 | 6 | 26 |
Wind waves Height (m) Direction Period (s) | WNW 7 | WNW 7 | WNW 7 | NW 7 | — | NW 7 | NW 7 | WNW 7 | WNW 7 | NW 7 | NW 7 | — | — | — | — | — | — | — |
| kJ | 311 | 329 | 222 | 309 | — | 268 | 268 | 131 | 127 | 261 | 268 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 120 | 22 | 22 | 0 | 0 | 22 | 22 | 0 | 54 | 0 | 0 | 22 | 8 | 22 | 25 | 121 | 0 | 25 |
Best forecast wave conditions in Marin County | ||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||
Header Global | ||||||||||||||||||
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