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 4PM is: 0.6m 16s primary swell from a Southwest direction and 0.4m 13s secondary swell from a South-southwest direction, 0.9m 8s secondary swell from a West-northwest direction (forecast issued at 10:00am August 18). The wind direction is predicted to be cross-offshore.
| 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 Wed afternoon, min 12°C on Tue morning). Wind will be generally light. | ||||||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | ||||||||||||||||||||
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 15 | SW 15 | SW 16 | SW 16 | SSW 16 | SW 16 | WNW 7 | SW 14 | SW 14 | SW 15 | SW 15 | SW 15 | SW 15 | WNW 7 | WNW 8 | WNW 8 | WNW 7 | SSW 14 | WNW 7 | WNW 7 | WNW 7 | WNW 7 |
Wave Graph  | ||||||||||||||||||||||
 kJ | 217 | 220 | 251 | 208 | 175 | 129 | 149 | 194 | 211 | 217 | 217 | 223 | 236 | 272 | 294 | 199 | 153 | 134 | 142 | 158 | 198 | 294 |
Wind (km/h) | ||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross-off | cross-off | cross-off | cross | cross | glassy | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 4:13PM1.22m | 5:53AM0.82m | 4:57PM1.19m | 7:43AM0.81m | 5:49PM1.18m | |||||||||||||||||
Low Tide | 10:24AM0.41m | 11:52PM0.19m | 11:15AM0.52m | 1:00AM0.17m | 12:22PM0.60m | |||||||||||||||||
 | | | | |  | | |  | | | | |  | | | | | |  | | | |
 | 6:28 | — | — | — | — | — | — | 6:28 | — | — | — | — | — | — | — | 6:30 | — | — | — | — | — | — |
 | — | — | — | — | 8:00 | — | — | — | — | — | — | 7:59 | — | — | — | — | — | — | — | 7:57 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 12 | 15 | 17 | 15 | 13 | 12 | 13 | 12 | 14 | 17 | 18 | 16 | 13 | 13 | 13 | 12 | 13 | 17 | 17 | 16 | 14 | 13 |
Feels °C | 11 | 14 | 16 | 12 | 10 | 9 | 12 | 11 | 15 | 17 | 17 | 13 | 9 | 11 | 11 | 10 | 12 | 16 | 15 | 13 | 11 | 10 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 15 | WNW 8 | SW 16 | SSW 16 | SW 16 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | WNW 8 | SW 15 | SW 15 | SW 15 | W 11 | WNW 8 | WNW 7 | W 12 | W 12 | W 12 | W 11 | SSW 14 |
| kJ | 217 | 220 | 88 | 208 | 175 | 129 | 144 | 131 | 157 | 134 | 138 | 223 | 236 | 242 | 89 | 199 | 153 | 134 | 134 | 132 | 114 | 138 |
Swell 2 Height (m) Direction Period (s) | WNW 8 | WNW 6 | SW 16 | SSW 13 | SW 13 | SW 13 | SW 14 | SW 14 | SW 14 | SW 15 | SW 15 | W 12 | W 12 | W 11 | SW 15 | W 11 | W 12 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | W 11 |
| kJ | 23 | 35 | 251 | 66 | 85 | 85 | 149 | 194 | 211 | 217 | 217 | 74 | 108 | 94 | 183 | 119 | 130 | 129 | 134 | 136 | 138 | 61 |
Swell 3 Height (m) Direction Period (s) | SW 9 | WNW 8 | W 16 | NW 7 | WNW 8 | W 15 | SW 17 | W 14 | W 13 | W 13 | W 12 | SW 21 | W 22 | — | — | SW 14 | SW 14 | WSW 19 | WSW 19 | SW 19 | SW 20 | SW 20 |
| kJ | 3 | 22 | 20 | 16 | 35 | 38 | 70 | 57 | 55 | 82 | 74 | 18 | 9 | — | — | 167 | 153 | 37 | 36 | 14 | 15 | 15 |
Wind waves Height (m) Direction Period (s) | WNW 6 | — | — | WNW 8 | WNW 7 | WNW 7 | — | — | — | — | — | WNW 8 | WNW 8 | WNW 7 | WNW 8 | — | — | WNW 7 | WNW 7 | WNW 7 | WNW 7 | WNW 7 |
| kJ | 29 | — | — | 107 | 68 | 127 | — | — | — | — | — | 142 | 173 | 272 | 294 | — | — | 117 | 142 | 158 | 198 | 294 |
Nearest Offshore or Glassy | ||||||||||||||||||||||
Distance (km) | 25 | 25 | 123 | 121 | 54 | 22 | 22 | 22 | 0 | 22 | 22 | 120 | 120 | 0 | 22 | 0 | 0 | 0 | 22 | 120 | 22 | 22 |
Best forecast wave conditions in Marin County | ||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||
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