Surf Forecasts:
How big are the waves at The Patch today (20 Sep):
- Morning surf: Morning surf (20 Sep, local time) - 5.5ft (1.7m), 8s period with NW 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 8AM is: 1.8m 8s primary swell from a Northwest direction and 1.3m 7s secondary swell from a West-northwest direction, 0.6m 18s secondary swell from a Southwest direction (forecast issued at 04:00am September 20). The wind direction is predicted to be cross-offshore and the swell rating is 3.
| Time (PDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Sep) | 5.5ft (1.7m) | 8s |
| 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 Mon afternoon, min 13°C on Sun morning). Wind will be generally light. | ||||||||||||||||||||||||
Sunday 20 | Monday 21 | Tuesday 22 | ||||||||||||||||||||||
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 | 2 PM | 5 PM | 8 PM | 11 PM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | SW 18 | SW 18 | NW 8 | NW 8 | SW 18 | SW 19 | SW 18 | SW 18 | SW 18 | SW 17 | SW 17 | SW 17 | SW 17 | SW 17 | SW 17 | SW 17 | SW 17 | SW 17 | WNW 8 | WNW 8 | SW 16 | WNW 12 | WNW 10 | WNW 10 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 252 | 199 | 350 | 326 | 318 | 339 | 321 | 304 | 300 | 293 | 350 | 346 | 346 | 346 | 408 | 413 | 413 | 346 | 270 | 270 | 248 | 308 | 746 | 747 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross-on | cross | cross | cross | cross-on | cross-on | glassy | on | cross | cross-off | cross-off | cross-off |
High Tide | 9:23AM0.94m | 7:12PM1.10m | 9:55AM0.98m | 8:14PM1.13m | 10:21AM1.02m | 9:07PM1.17m | ||||||||||||||||||
Low Tide | 2:21AM0.13m | 2:37PM0.62m | 3:15AM0.10m | 3:28PM0.57m | 3:58AM0.08m | 4:11PM0.50m | ||||||||||||||||||
 |  |  | | | | | | | |  |  | | | | | |  | | | | | | | |
 | — | 6:56 | — | — | — | — | — | — | — | 6:56 | — | — | — | — | — | — | — | 6:58 | — | — | — | — | — | — |
 | — | — | — | — | — | 7:10 | — | — | — | — | — | — | — | 7:08 | — | — | — | — | — | — | — | 7:07 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 13 | 13 | 16 | 16 | 15 | 13 | 13 | 13 | 13 | 13 | 16 | 17 | 15 | 13 | 13 | 13 | 13 | 13 | 16 | 17 | 16 | 14 | 14 |
Feels °C | 11 | 12 | 12 | 15 | 15 | 13 | 10 | 11 | 11 | 12 | 13 | 15 | 16 | 13 | 12 | 11 | 12 | 13 | 13 | 15 | 16 | 14 | 12 | 13 |
Swell 1 Height (m) Direction Period (s) | SW 18 | SW 18 | WNW 7 | WNW 7 | WNW 8 | SW 19 | SW 18 | SW 18 | SW 18 | WNW 7 | WNW 7 | WNW 8 | WNW 8 | WNW 7 | WNW 9 | WNW 9 | WNW 9 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 10 | WNW 10 |
| kJ | 252 | 199 | 193 | 157 | 165 | 339 | 321 | 304 | 300 | 153 | 134 | 142 | 142 | 84 | 180 | 273 | 261 | 277 | 270 | 270 | 223 | 207 | 746 | 747 |
Swell 2 Height (m) Direction Period (s) | SW 13 | SW 12 | SW 18 | SW 18 | SW 18 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SW 17 | SW 17 | SW 17 | SW 17 | SW 17 | SW 17 | SW 17 | SW 17 | SW 17 | SW 16 | W 13 | WNW 13 | WNW 12 | SW 16 | SW 16 |
| kJ | 42 | 39 | 199 | 258 | 318 | 29 | 14 | 29 | 29 | 293 | 350 | 346 | 346 | 346 | 408 | 413 | 413 | 346 | 267 | 176 | 176 | 308 | 251 | 306 |
Swell 3 Height (m) Direction Period (s) | S 9 | S 9 | SW 12 | SW 12 | SSW 12 | S 9 | S 9 | S 9 | SSW 12 | SSW 12 | SSW 13 | SSW 13 | SSW 13 | WNW 9 | W 18 | WNW 16 | WNW 16 | W 15 | W 14 | SW 16 | SW 16 | SW 16 | SSW 12 | W 12 |
| kJ | 7 | 7 | 38 | 38 | 29 | 2 | 2 | 2 | 15 | 30 | 33 | 33 | 32 | 32 | 6 | 26 | 50 | 112 | 146 | 251 | 248 | 251 | 13 | 146 |
Wind waves Height (m) Direction Period (s) | WNW 7 | WNW 7 | NW 8 | NW 8 | — | WNW 7 | WNW 7 | WNW 7 | WNW 7 | NW 7 | — | — | — | — | — | — | — | — | — | — | — | — | NW 9 | — |
| kJ | 222 | 173 | 350 | 326 | — | 157 | 148 | 183 | 177 | 268 | — | — | — | — | — | — | — | — | — | — | — | — | 594 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 22 | 0 | 0 | 22 | 0 | 0 | 0 | 8 | 521 | 25 | 121 | 54 | 45 | 8 | 8 | 0 | 8 | 25 | 121 | 0 | 0 |
Best forecast wave conditions in Marin County | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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