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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 Sunday 10 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
12.6° C
(Which is slightly warmer than usual)How big are the waves at Big River today?
The current surf forecast for Big River at 8AM is: 1.3m 11s primary swell from a West-northwest direction and 0.8m 18s secondary swell from a South-southwest direction, 1.6m 7s secondary swell from a Northwest direction (forecast issued at 04:00am May 10). The wind direction is predicted to be cross-offshore and the swell rating is 3.
| Time (PDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 May) | 2.5ft (0.8m) | 18s |
| Afternoon (10 May) | 7ft (2.2m) | 7s |
| Evening (10 May) | 10ft (3.0m) | 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 14°C on Mon morning, min 10°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Sunday 10 | Monday 11 | Tuesday 12 | ||||||||||||||||||||||
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 12 | SSW 16 | SSW 18 | WNW 12 | NW 7 | NW 7 | NW 8 | NW 7 | WNW 12 | NW 8 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 12 | |
420 | 427 | 446 | 343 | 428 | 784 | 885 | 418 | 583 | 544 | 544 | 524 | 524 | 452 | 515 | 906 | 862 | 759 | 447 | 380 | 319 | 319 | 280 | 374 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross | glassy | glassy | glassy | cross | cross-on | cross | cross-off | cross-off | glassy | |
High Tide | 5:35AM1.24m | 7:45PM1.34m | 6:54AM1.20m | 8:13PM1.46m | 8:08AM1.20m | 8:41PM1.59m | ||||||||||||||||||
Low Tide | 00:21AM0.83m | 12:35PM0.10m | 1:28AM0.66m | 1:19PM0.16m | 2:23AM0.44m | 2:01PM0.24m | ||||||||||||||||||
 | |  |  | | | |  | | | | | | | | | | | | | | | | | |
 | — | 6:05 | — | — | — | — | — | — | — | 6:05 | — | — | — | — | — | — | — | 6:03 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 8:15 | — | — | — | — | — | — | — | 8:16 | — | — | — | — | — | — | — | 8:17 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 11 | 10 | 11 | 12 | 13 | 13 | 12 | 11 | 11 | 10 | 12 | 14 | 14 | 13 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 12 | 11 | 10 |
9 | 8 | 9 | 8 | 8 | 9 | 8 | 8 | 9 | 8 | 11 | 12 | 11 | 10 | 11 | 12 | 12 | 11 | 11 | 11 | 10 | 9 | 9 | 9 | |
Swell 1 Height (m) Direction Period (s) | WNW 12 | W 11 | WNW 11 | WNW 12 | WNW 12 | SSW 18 | SSW 18 | WNW 9 | WNW 12 | SSW 17 | NW 7 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 12 |
 kJ | 420 | 191 | 446 | 343 | 343 | 123 | 246 | 328 | 583 | 432 | 248 | 524 | 524 | 452 | 515 | 906 | 862 | 759 | 447 | 380 | 319 | 319 | 280 | 374 |
Swell 2 Height (m) Direction Period (s) | W 8 | SSW 16 | SSW 18 | SSW 18 | SSW 18 | SSW 15 | SW 14 | SSW 18 | SW 15 | SW 11 | WNW 11 | NW 7 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | NW 6 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 |
| kJ | 88 | 427 | 368 | 270 | 204 | 85 | 103 | 243 | 226 | 5 | 544 | 211 | 291 | 291 | 402 | 402 | 322 | 207 | 65 | 188 | 242 | 242 | 242 | 242 |
Swell 3 Height (m) Direction Period (s) | SW 16 | WNW 13 | SSW 12 | SSW 19 | SSW 19 | SSW 19 | WNW 12 | WNW 12 | S 18 | S 14 | SSW 16 | SSW 16 | S 16 | S 16 | S 16 | S 16 | S 12 | S 17 | SSW 15 | S 17 | S 14 | S 14 | S 14 | S 11 |
| kJ | 261 | 186 | 14 | 123 | 123 | 69 | 29 | 83 | 160 | 4 | 326 | 291 | 5 | 5 | 5 | 5 | 3 | 52 | 196 | 24 | 16 | 16 | 4 | 2 |
Wind waves Height (m) Direction Period (s) | NW 6 | NW 7 | NW 7 | NW 7 | NW 7 | NW 7 | NW 8 | NW 7 | NW 7 | NW 8 | — | — | NW 7 | NW 7 | NW 6 | NW 6 | — | — | — | NW 6 | NW 5 | NW 5 | NW 5 | NW 5 |
| kJ | 213 | 279 | 240 | 317 | 428 | 784 | 885 | 418 | 296 | 544 | — | — | 184 | 159 | 120 | 162 | — | — | — | 43 | 35 | 32 | 25 | 24 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 183 | 202 | 304 | 183 | 0 | 0 | 0 | 0 | 111 | 160 | 29 | 13 | 0 | 0 | 0 | 13 | 111 | 160 | 279 | 0 | 0 |
Best forecast wave conditions in Mendocino County | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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