Surf Forecasts:
How big are the waves at The Patch today (18 Aug):
- Morning surf: Morning surf (18 Aug, local time) - 2.5ft (0.7m), 15s period with SW swell.
- Afternoon surf: Afternoon surf (18 Aug, local time) - 2.5ft (0.7m), 16s period with SW swell.
- Evening surf: Evening surf (18 Aug, local time) - 2ft (0.6m), 16s period with SSW swell.
The current surf forecast for The Patch at 3AM is: 0.6m 14s primary swell from a Southwest direction and 0.6m 6s secondary swell from a West-northwest direction (forecast issued at 10:00pm 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) | 2.5ft (0.7m) | 15s |
| Afternoon (18 Aug) | 2.5ft (0.7m) | 16s |
| Evening (18 Aug) | 2ft (0.6m) | 16s |
Table - waves today at The Patch. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 18°C on Tue afternoon, min 11°C on Mon night). Wind will be generally light. | ||||||||||||||||||
Mon 17 | Tuesday 18 | Wednesday 19 | ||||||||||||||||
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 14 | SW 14 | SW 14 | SW 15 | SW 15 | SW 16 | SW 16 | SSW 16 | SW 16 | SSW 14 | SW 14 | SW 14 | SW 15 | SW 15 | SW 15 | SW 15 | WNW 7 |
Wave Graph  | ||||||||||||||||||
 kJ | 255 | 251 | 169 | 169 | 217 | 220 | 251 | 208 | 175 | 131 | 127 | 194 | 211 | 217 | 223 | 223 | 236 | 242 |
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-off | cross | cross-off | cross-off | cross-off | cross-off | cross | glassy | cross | cross | cross-off | cross-off | cross-off |
High Tide | 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 | 13 | 12 | 12 | 11 | 12 | 15 | 18 | 16 | 13 | 12 | 12 | 12 | 13 | 17 | 17 | 16 | 13 | 13 |
Feels °C | 11 | 10 | 11 | 9 | 11 | 14 | 17 | 14 | 10 | 9 | 11 | 11 | 13 | 17 | 15 | 13 | 10 | 10 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 14 | SW 14 | SW 14 | SW 15 | SW 15 | WNW 6 | SW 16 | SSW 16 | SW 16 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | SW 15 | SW 15 | SW 15 |
| kJ | 255 | 251 | 169 | 169 | 217 | 220 | 44 | 208 | 175 | 129 | 127 | 121 | 134 | 134 | 125 | 223 | 236 | 242 |
Swell 2 Height (m) Direction Period (s) | WNW 9 | W 9 | WNW 6 | WNW 6 | WNW 6 | WNW 6 | SW 16 | WNW 8 | SW 13 | SW 13 | SSW 14 | SW 14 | SW 14 | SW 15 | SW 15 | W 12 | W 12 | W 12 |
| kJ | 26 | 39 | 30 | 30 | 31 | 34 | 251 | 37 | 85 | 85 | 123 | 194 | 211 | 217 | 217 | 74 | 108 | 96 |
Swell 3 Height (m) Direction Period (s) | S 9 | S 9 | WNW 9 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | SSW 13 | W 15 | W 15 | SW 17 | W 14 | W 13 | W 13 | W 12 | SW 21 | W 22 | — |
| kJ | 2 | 2 | 26 | 24 | 23 | 22 | 36 | 66 | 17 | 38 | 70 | 57 | 55 | 82 | 74 | 18 | 9 | — |
Wind waves Height (m) Direction Period (s) | WNW 7 | WNW 7 | — | — | — | — | — | WNW 7 | WNW 8 | WNW 7 | — | — | — | — | NW 7 | WNW 8 | WNW 7 | WNW 7 |
| kJ | 34 | 34 | — | — | — | — | — | 50 | 110 | 131 | — | — | — | — | 223 | 138 | 169 | 209 |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 121 | 54 | 120 | 22 | 0 | 8 | 0 | 22 | 22 | 121 | 22 | 22 |
Best forecast wave conditions in Marin County | ||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||
Header Global | ||||||||||||||||||
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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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