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Big River Surf Forecast
/ CAL – Mendocino County (14 breaks) / California (404 breaks) /
Surf Forecasts:
Big River surfForecast / CAL – Mendocino County / USA
48hr Weather and Surf, issued 10 pm Tuesday 12 May 2026 PDTForecast update in hr min s Forecast update imminent
Big River surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Big River sea temperature is
12.2° C
(Which is normal for this time of year)How big are the waves at Big River today?
The current surf forecast for Big River at 4AM is: 1.4m 12s primary swell from a West-northwest direction and 0.7m 14s secondary swell from a South-southwest direction, 0.8m 4s secondary swell from a Northwest direction (forecast issued at 10:00pm May 12). The wind direction is predicted to be cross-offshore.
| Time (PDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 May) | 4ft (1.2m) | 11s |
| Afternoon (13 May) | 5ft (1.6m) | 12s |
| Evening (13 May) | 8ft (2.5m) | 12s |
Table - waves today at Big River. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 13°C on Thu night, min 8°C on Wed night). Winds increasing (light winds from the NNE on Tue night, strong winds from the NNW by Fri afternoon). | ||||||||||||||||||||||||
Tue 12 | Wednesday 13 | Thursday 14 | Friday 15 | |||||||||||||||||||||
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 | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | |
Swell Height Map |   |    |    |    | ||||||||||||||||||||
SSW 15 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | WNW 11 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | WNW 11 | WNW 8 | WNW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 7 | NW 7 | NW 7 | NW 8 | NW 8 | |
263 | 361 | 444 | 463 | 303 | 446 | 692 | 669 | 1783 | 559 | 1236 | 1074 | 1122 | 638 | 811 | 1161 | 1492 | 1157 | 839 | 698 | 503 | 606 | 1025 | 1475 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 8:41PM1.59m | 9:15AM1.22m | 9:12PM1.74m | 10:18AM1.25m | 9:45PM1.87m | 11:18AM1.28m | ||||||||||||||||||
Low Tide | 3:11AM0.19m | 2:43PM0.34m | 3:58AM-0.06m | 3:24PM0.44m | 4:44AM-0.29m | 4:07PM0.54m | ||||||||||||||||||
 |  |  | | | | | | | | | | | | | | | | | | | | | | |
 | — | — | — | 6:03 | — | — | — | — | — | — | — | 6:01 | — | — | — | — | — | — | — | 6:01 | — | — | — | — |
 | 8:17 | — | — | — | — | — | — | — | 8:19 | — | — | — | — | — | — | — | 8:20 | — | — | — | — | — | — | 8:21 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 11 | 11 | 12 | 12 | 11 | 12 | 12 | 11 | 11 | 10 | 9 | 8 | 9 | 12 | 12 | 12 | 13 | 12 | 10 | 10 | 10 | 12 | 12 | 12 |
9 | 10 | 11 | 10 | 7 | 7 | 6 | 5 | 6 | 7 | 7 | 6 | 7 | 8 | 7 | 6 | 6 | 5 | 4 | 5 | 5 | 6 | 4 | 3 | |
Swell 1 Height (m) Direction Period (s) | WNW 11 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | WNW 11 | WNW 12 | WNW 12 | SSW 14 | WNW 12 | SSW 13 | SSW 13 | WNW 11 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 |
 kJ | 263 | 361 | 444 | 463 | 303 | 446 | 692 | 669 | 104 | 559 | 102 | 102 | 1122 | 229 | 380 | 371 | 295 | 295 | 263 | 144 | 339 | 326 | 252 | 296 |
Swell 2 Height (m) Direction Period (s) | SSW 15 | SSW 15 | SSW 15 | SSW 14 | WNW 13 | WNW 13 | SSW 14 | SSW 14 | SSW 18 | SSW 13 | SSW 18 | SSW 18 | SSW 13 | SSW 13 | S 12 | S 13 | S 13 | WNW 19 | NW 18 | S 14 | WNW 9 | WNW 16 | S 18 | S 11 |
| kJ | 242 | 242 | 242 | 186 | 290 | 239 | 168 | 123 | 124 | 102 | 104 | 123 | 69 | 70 | 11 | 14 | 14 | 34 | 81 | 107 | 92 | 234 | 25 | 2 |
Swell 3 Height (m) Direction Period (s) | S 14 | S 11 | S 11 | W 15 | SSW 14 | SSW 14 | SSW 19 | SSW 18 | S 13 | SSW 18 | S 12 | S 12 | SSW 17 | S 12 | W 20 | S 12 | S 12 | S 13 | S 11 | NW 18 | WNW 17 | S 11 | S 11 | — |
| kJ | 4 | 2 | 10 | 38 | 138 | 125 | 72 | 64 | 13 | 104 | 11 | 11 | 100 | 11 | 8 | 11 | 3 | 14 | 2 | 80 | 117 | 2 | 2 | — |
Wind waves Height (m) Direction Period (s) | NW 5 | NW 5 | NW 4 | NW 4 | NW 5 | NW 5 | NW 5 | NW 6 | WNW 12 | NW 6 | WNW 11 | WNW 11 | — | WNW 8 | WNW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 7 | NW 7 | NW 7 | NW 8 | NW 8 |
| kJ | 35 | 24 | 16 | 34 | 49 | 68 | 122 | 191 | 1783 | 349 | 1236 | 1074 | — | 638 | 811 | 1161 | 1492 | 1157 | 839 | 698 | 503 | 606 | 1025 | 1475 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 82 | 304 | 304 | 305 | 273 | 29 | 0 | 0 | 0 | 129 | 304 | 304 | 202 | 235 | 59 | 59 | 59 | 304 | 304 | 303 |
Best forecast wave conditions in Mendocino County | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Ocean Swells (m)- Wind Speed (km/h)
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