Surf Forecasts:
How big are the waves at The Patch today (18 Aug):
- Afternoon surf: Afternoon surf (18 Aug, local time) - 2.5ft (0.8m), 15s period with SW swell.
- Evening surf: Evening surf (18 Aug, local time) - 2.5ft (0.8m), 15s period with SW swell.
The current surf forecast for The Patch at 12AM is: 0.7m 14s primary swell from a Southwest direction and 0.5m 9s secondary swell from a West direction, 0.6m 7s secondary swell from a West-northwest direction (forecast issued at 04:00pm August 17). The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (PDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Aug) | - | - |
| Afternoon (18 Aug) | 2.5ft (0.8m) | 15s |
| Evening (18 Aug) | 2.5ft (0.8m) | 15s |
Table - waves today at The Patch. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 18°C on Wed afternoon, min 12°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Mon 17 | Tuesday 18 | Wednesday 19 | ||||||||||||||||||
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 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 15 | SW 15 | SW 16 | SW 16 | SSW 16 | WNW 7 | WNW 7 | SW 14 | SW 14 | SW 15 | NW 8 | SW 15 | SW 15 | WNW 7 |
Wave Graph  | ||||||||||||||||||||
 kJ | 255 | 255 | 255 | 251 | 169 | 169 | 217 | 220 | 251 | 208 | 175 | 153 | 149 | 194 | 211 | 217 | 255 | 223 | 236 | 264 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross | cross-on | glassy | cross | cross | cross-off | cross-off | cross-off |
High Tide | 3:36PM1.24m | 4:24AM0.89m | 4:13PM1.22m | 5:53AM0.82m | 4:57PM1.19m | |||||||||||||||
Low Tide | 10:49PM0.21m | 10:24AM0.41m | 11:52PM0.19m | 11:15AM0.52m | ||||||||||||||||
 |  | |  | | | | | | | | | | | | | | | | | |
 | — | — | — | — | — | 6:28 | — | — | — | — | — | — | — | 6:28 | — | — | — | — | — | — |
 | — | — | 8:00 | — | — | — | — | — | — | — | 8:00 | — | — | — | — | — | — | 7:59 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 16 | 13 | 12 | 12 | 12 | 12 | 15 | 17 | 15 | 13 | 12 | 12 | 12 | 14 | 17 | 18 | 16 | 13 | 13 |
Feels °C | 15 | 14 | 11 | 10 | 10 | 10 | 11 | 14 | 15 | 12 | 10 | 9 | 10 | 12 | 14 | 17 | 17 | 13 | 10 | 10 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | WNW 7 | WNW 8 | WNW 8 | SW 16 | SSW 16 | SW 16 | WNW 7 | WNW 7 | WNW 7 | WNW 8 | WNW 8 | SW 15 | SW 15 | SW 15 |
| kJ | 255 | 255 | 255 | 251 | 169 | 169 | 51 | 113 | 119 | 208 | 175 | 129 | 148 | 131 | 157 | 161 | 138 | 223 | 236 | 242 |
Swell 2 Height (m) Direction Period (s) | WNW 7 | WNW 9 | WNW 9 | W 9 | WNW 6 | WNW 6 | SW 15 | SW 15 | SW 16 | SSW 13 | SW 13 | SW 13 | SW 14 | SW 14 | SW 14 | SW 15 | SW 15 | W 12 | W 12 | W 11 |
| kJ | 25 | 26 | 26 | 39 | 30 | 30 | 217 | 220 | 251 | 66 | 85 | 85 | 149 | 194 | 211 | 217 | 220 | 74 | 106 | 94 |
Swell 3 Height (m) Direction Period (s) | WNW 9 | S 9 | S 9 | S 9 | WNW 9 | WNW 8 | WNW 8 | SW 9 | W 16 | W 16 | W 15 | W 15 | SW 17 | W 14 | W 13 | W 13 | W 12 | SW 21 | W 22 | — |
| kJ | 25 | 7 | 2 | 2 | 26 | 24 | 23 | 3 | 20 | 19 | 17 | 38 | 77 | 57 | 56 | 82 | 74 | 18 | 9 | — |
Wind waves Height (m) Direction Period (s) | — | WNW 7 | WNW 7 | WNW 7 | — | — | — | — | — | WNW 8 | WNW 8 | WNW 7 | — | — | — | — | NW 8 | WNW 8 | WNW 8 | WNW 7 |
| kJ | — | 25 | 34 | 34 | — | — | — | — | — | 113 | 128 | 153 | — | — | — | — | 255 | 170 | 173 | 264 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 99 | 123 | 0 | 0 | 0 | 0 | 0 | 0 | 22 | 121 | 120 | 22 | 22 | 8 | 0 | 22 | 22 | 121 | 112 | 22 |
Best forecast wave conditions in Marin County | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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