Surf Forecasts:
How big are the waves at Gray Whale Cove today (18 Aug):
- Morning surf: Morning surf (18 Aug, local time) - 2ft (0.6m), 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 Gray Whale Cove at 7AM is: 0.6m 15s primary swell from a Southwest direction and 0.5m 6s secondary swell from a West-northwest direction (forecast issued at 10:00pm August 17). The wind direction is predicted to be onshore.
| Time (PDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Aug) | 2ft (0.6m) | 15s |
| Afternoon (18 Aug) | 2.5ft (0.7m) | 16s |
| Evening (18 Aug) | 2ft (0.6m) | 16s |
Table - waves today at Gray Whale Cove. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 15°C on Tue afternoon, min 12°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 15 | SW 15 | SW 15 | SW 16 | SW 16 | SSW 16 | SSW 16 | WNW 7 | SW 14 | SW 14 | SW 15 | SW 15 | SW 15 | SW 15 | SSW 15 |
Wave Graph  | ||||||||||||||||||
 kJ | 217 | 169 | 169 | 171 | 171 | 176 | 255 | 125 | 173 | 173 | 121 | 153 | 167 | 217 | 220 | 226 | 191 | 158 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | cross-on | cross-on | on | on | on | cross-on | cross-on | on | on | glassy | on | on | on | cross-on | cross-on |
High Tide | 3:44AM1.77m | 3:31PM2.26m | 5:05AM1.66m | 4:17PM2.20m | ||||||||||||||
Low Tide | 9:37PM0.74m | 9:03AM1.11m | 10:41PM0.73m | 9:49AM1.29m | ||||||||||||||
 |  | | | |  | | | | | | | | | | | | | |
 | — | — | — | 6:28 | — | — | — | — | — | — | — | 6:28 | — | — | — | — | — | — |
 | 8:00 | — | — | — | — | — | — | 7:59 | — | — | — | — | — | — | — | 7:57 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 12 | 12 | 12 | 12 | 12 | 14 | 15 | 14 | 13 | 12 | 13 | 13 | 13 | 15 | 15 | 14 | 13 | 13 |
Feels °C | 10 | 11 | 11 | 11 | 10 | 12 | 13 | 12 | 11 | 10 | 12 | 12 | 13 | 14 | 13 | 11 | 11 | 11 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 14 | SW 14 | SW 15 | SW 15 | SW 15 | SW 16 | WNW 8 | WNW 6 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | SW 15 | SW 15 | WNW 7 |
| kJ | 217 | 169 | 169 | 171 | 171 | 176 | 255 | 89 | 48 | 104 | 121 | 101 | 104 | 104 | 104 | 226 | 191 | 148 |
Swell 2 Height (m) Direction Period (s) | WNW 7 | WNW 7 | WNW 6 | WNW 7 | WNW 6 | WNW 6 | WNW 6 | SW 16 | SSW 16 | SSW 16 | SW 13 | SW 14 | SW 14 | SW 15 | SW 15 | W 12 | W 12 | SSW 15 |
| kJ | 25 | 26 | 23 | 34 | 21 | 31 | 29 | 125 | 173 | 173 | 88 | 153 | 167 | 217 | 220 | 74 | 76 | 158 |
Swell 3 Height (m) Direction Period (s) | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 8 | WNW 8 | WNW 8 | SW 13 | WNW 8 | SW 13 | SW 16 | W 14 | W 13 | W 13 | W 12 | SW 22 | W 22 | W 12 |
| kJ | 25 | 26 | 26 | 25 | 24 | 23 | 35 | 44 | 26 | 42 | 68 | 33 | 56 | 54 | 75 | 18 | 9 | 101 |
Wind waves Height (m) Direction Period (s) | NW 7 | — | — | — | — | — | WNW 7 | WNW 7 | WNW 7 | — | — | — | — | — | — | WNW 7 | WNW 8 | — |
| kJ | 46 | — | — | — | — | — | 73 | 99 | 114 | — | — | — | — | — | — | 104 | 138 | — |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 40 | 27 | 27 | 27 | 40 | 40 | 81 | 81 | 80 | 27 | 27 | 27 | 0 | 27 | 27 | 81 | 27 | 27 |
Best forecast wave conditions in San Mateo | ||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||
Header Global | ||||||||||||||||||
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