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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 4 am Thursday 30 Apr 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
12.6° C
(Which is slightly warmer than usual)How big are the waves at Big River today?
The current surf forecast for Big River at 1PM is: 1.3m 13s primary swell from a West-northwest direction and 0.4m 14s secondary swell from a Southwest direction, 1.7m 8s secondary swell from a Northwest direction (forecast issued at 04:00am April 30). The wind direction is predicted to be cross-shore.
| Time (PDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 Apr) | 4.5ft (1.3m) | 14s |
| Afternoon (30 Apr) | 4.5ft (1.3m) | 13s |
| Evening (30 Apr) | 7.5ft (2.3m) | 8s |
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 morning, min 10°C on Thu morning). Wind will be generally light. | ||||||||||||||||||||||||
Thursday 30 | Friday 1 | Saturday 2 | ||||||||||||||||||||||
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 | 8 PM | 11 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
WNW 14 | WNW 14 | WNW 14 | WNW 13 | WNW 13 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | WNW 12 | WNW 12 | WNW 12 | NW 8 | NW 9 | NW 9 | |
561 | 530 | 561 | 545 | 536 | 523 | 667 | 611 | 574 | 574 | 515 | 579 | 659 | 813 | 1055 | 881 | 613 | 559 | 545 | 536 | 464 | 593 | 828 | 714 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross | glassy | |
High Tide | 11:43AM1.25m | 11:01PM1.73m | 12:30PM1.23m | 11:28PM1.73m | 1:15PM1.20m | |||||||||||||||||||
Low Tide | 5:17AM-0.08m | 4:47PM0.51m | 5:54AM-0.16m | 5:18PM0.61m | 6:30AM-0.20m | 5:50PM0.70m | ||||||||||||||||||
 | |  | | | | | | |  |  |  | | | |  | | | | | | | | | |
 | — | 6:18 | — | — | — | — | — | — | — | 6:16 | — | — | — | — | — | — | — | 6:15 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 8:07 | — | — | — | — | — | — | — | 8:07 | — | — | — | — | — | — | — | 8:08 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 10 | 9 | 10 | 13 | 12 | 12 | 11 | 10 | 10 | 10 | 10 | 12 | 13 | 12 | 11 | 11 | 10 | 10 | 10 | 12 | 12 | 12 | 11 | 11 |
8 | 6 | 7 | 10 | 8 | 8 | 9 | 9 | 8 | 8 | 7 | 9 | 9 | 8 | 8 | 8 | 6 | 6 | 7 | 9 | 8 | 8 | 8 | 11 | |
Swell 1 Height (m) Direction Period (s) | WNW 14 | WNW 14 | WNW 14 | NW 8 | WNW 13 | WNW 13 | WNW 13 | WNW 13 | WNW 13 | WNW 12 | WNW 13 | WNW 13 | WNW 13 | WNW 13 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | NW 12 | WNW 11 | WNW 11 |
 kJ | 561 | 530 | 561 | 393 | 536 | 458 | 458 | 346 | 330 | 325 | 335 | 346 | 408 | 335 | 325 | 397 | 517 | 353 | 545 | 536 | 464 | 264 | 166 | 219 |
Swell 2 Height (m) Direction Period (s) | SW 15 | SW 15 | SW 14 | WNW 13 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | WSW 13 | SW 13 | SW 13 | SSW 18 | SSW 18 | SSW 18 | WNW 20 | WNW 20 |
| kJ | 33 | 75 | 74 | 545 | 54 | 33 | 32 | 31 | 29 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 17 | 28 | 28 | 31 | 31 | 31 | 75 | 149 |
Swell 3 Height (m) Direction Period (s) | S 15 | S 11 | S 11 | SW 14 | S 11 | S 11 | S 13 | S 13 | S 13 | S 13 | S 11 | S 11 | S 10 | S 10 | S 12 | S 12 | S 12 | S 12 | SSW 18 | SW 13 | SW 13 | WNW 21 | SW 12 | SSW 18 |
| kJ | 17 | 9 | 9 | 54 | 9 | 9 | 14 | 14 | 14 | 14 | 9 | 9 | 2 | 2 | 11 | 11 | 11 | 11 | 31 | 28 | 25 | 44 | 6 | 31 |
Wind waves Height (m) Direction Period (s) | NW 8 | NW 8 | NW 8 | — | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 7 | NW 8 | NW 8 | NW 8 | NW 9 | NW 9 |
| kJ | 468 | 413 | 373 | — | 344 | 523 | 667 | 611 | 574 | 574 | 515 | 579 | 659 | 813 | 1055 | 881 | 613 | 559 | 396 | 345 | 354 | 593 | 828 | 714 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 160 | 129 | 304 | 19 | 0 | 0 | 0 | 0 | 160 | 183 | 304 | 29 | 59 | 59 | 59 | 0 | 277 | 306 | 896 | 23 | 0 |
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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