Surf Forecasts:
How big are the waves at Big River today (20 Aug):
- Morning surf: Morning surf (20 Aug, local time) - 3ft (0.9m), 12s period with WNW swell.
- Afternoon surf: Afternoon surf (20 Aug, local time) - 2.5ft (0.8m), 14s period with SSW swell.
- Evening surf: Evening surf (20 Aug, local time) - 2.5ft (0.8m), 14s period with SSW swell.
The current surf forecast for Big River at 4AM is: 0.9m 15s primary swell from a South-southwest direction and 1.3m 7s secondary swell from a Northwest direction, 0.9m 12s secondary swell from a West-northwest direction (forecast issued at 10:00pm August 19). The wind direction is predicted to be glassy and the swell rating is 2.
| Time (PDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Aug) | 3ft (0.9m) | 12s |
| Afternoon (20 Aug) | 2.5ft (0.8m) | 14s |
| Evening (20 Aug) | 2.5ft (0.8m) | 14s |
Table - waves today at Big River. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 15°C on Sat morning, min 11°C on Wed night). Wind will be generally light. | ||||||||||||||||||
Wed 19 | Thursday 20 | Friday 21 | ||||||||||||||||
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) | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | WNW 11 | SSW 14 | WNW 10 | SSW 13 | SSW 13 |
Wave Graph  | ||||||||||||||||||
 kJ | 339 | 314 | 314 | 309 | 242 | 237 | 220 | 226 | 233 | 236 | 236 | 236 | 233 | 154 | 143 | 112 | 99 | 99 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | glassy | cross-off | glassy | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross-off | cross-off |
High Tide | 7:13AM1.08m | 5:33PM1.61m | 8:50AM1.12m | 6:35PM1.61m | ||||||||||||||
Low Tide | 00:09AM0.29m | 10:47AM0.93m | 1:20AM0.24m | 12:03PM1.00m | ||||||||||||||
 |  | | | | |  | | |  | | | | |  | | | | |
 | — | — | — | 6:31 | — | — | — | — | — | — | — | 6:33 | — | — | — | — | — | — |
 | 8:05 | — | — | — | — | — | — | — | 8:04 | — | — | — | — | — | — | — | 8:01 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 12 | 12 | 12 | 11 | 12 | 14 | 13 | 12 | 11 | 12 | 12 | 12 | 12 | 13 | 14 | 14 | 12 | 12 |
Feels °C | 11 | 11 | 12 | 10 | 12 | 12 | 11 | 10 | 9 | 11 | 12 | 11 | 11 | 11 | 12 | 12 | 10 | 11 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | NW 7 | NW 7 | NW 7 | NW 6 | WNW 12 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 10 | WNW 10 | WNW 10 | WNW 10 |
| kJ | 339 | 206 | 164 | 113 | 106 | 237 | 180 | 173 | 170 | 167 | 167 | 164 | 130 | 128 | 115 | 112 | 82 | 80 |
Swell 2 Height (m) Direction Period (s) | WNW 11 | SSW 15 | WNW 12 | WNW 12 | WNW 12 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | NNW 8 |
| kJ | 186 | 314 | 196 | 242 | 242 | 220 | 220 | 226 | 233 | 236 | 236 | 236 | 233 | 154 | 143 | 101 | 99 | 37 |
Swell 3 Height (m) Direction Period (s) | — | WNW 11 | SSW 15 | SSW 15 | SSW 14 | SW 19 | SW 19 | SW 19 | SW 19 | W 15 | WNW 14 | SW 20 | NW 7 | NW 7 | NW 7 | NW 7 | NW 7 | SSW 13 |
| kJ | — | 186 | 314 | 309 | 236 | 55 | 58 | 58 | 15 | 17 | 21 | 15 | 45 | 37 | 31 | 29 | 25 | 99 |
Wind waves Height (m) Direction Period (s) | NW 7 | — | — | NW 7 | — | NW 6 | NW 6 | NW 6 | NW 6 | NW 6 | NW 6 | NW 7 | — | — | — | — | — | — |
| kJ | 269 | — | — | 164 | — | 74 | 62 | 53 | 53 | 51 | 47 | 43 | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 23 | 0 | 0 | 0 | 0 | 129 | 277 | 0 | 0 | 0 | 0 | 0 | 0 | 277 | 305 | 198 | 0 | 0 |
Best forecast wave conditions in Mendocino County | ||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||
Header Global | ||||||||||||||||||
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