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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 Friday 15 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
11.9° 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 10AM is: 2.4m 7s primary swell from a Northwest direction and 0.8m 15s secondary swell from a South-southwest direction, 0.7m 16s secondary swell from a West-northwest direction (forecast issued at 04:00am May 15). The wind direction is predicted to be cross-offshore.
| Time (PDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 May) | 7.5ft (2.3m) | 7s |
| Afternoon (15 May) | 11ft (3.5m) | 8s |
| Evening (15 May) | 11ft (3.5m) | 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 Sun afternoon, min 9°C on Sun night). Winds decreasing (near gales from the NW on Sat afternoon, light winds from the N by Sun night). | ||||||||||||||||||||||||
Friday 15 | Saturday 16 | Sunday 17 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
NW 8 | NW 7 | NW 7 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | WNW 14 | WNW 14 | NW 8 | NW 8 | NW 9 | NW 9 | NW 9 | NW 9 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 9 | NW 9 | |
799 | 550 | 440 | 756 | 1448 | 1925 | 1715 | 1109 | 776 | 698 | 735 | 1169 | 2000 | 3083 | 3121 | 2987 | 3119 | 3321 | 3576 | 3979 | 4747 | 4885 | 2918 | 1954 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 11:18AM1.28m | 10:23PM1.99m | 12:15PM1.30m | 11:04PM2.06m | 1:13PM1.30m | |||||||||||||||||||
Low Tide | 4:44AM-0.29m | 4:07PM0.54m | 5:30AM-0.47m | 4:51PM0.62m | 6:19AM-0.58m | 5:38PM0.70m | ||||||||||||||||||
 | |  | | | | |  | | | | | | | | | | | | | | | | | |
 | — | 6:01 | — | — | — | — | — | — | — | 6:01 | — | — | — | — | — | — | — | 6:00 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 8:21 | — | — | — | — | — | — | — | 8:22 | — | — | — | — | — | — | — | 8:22 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 10 | 9 | 10 | 12 | 12 | 12 | 12 | 11 | 10 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 12 | 13 | 14 | 14 | 11 |
5 | 4 | 5 | 5 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 2 | 0 | 0 | 1 | 0 | 1 | 2 | 2 | 2 | 2 | 3 | 6 | 6 | |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 16 | WNW 9 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | WNW 15 | WNW 14 | WNW 14 | WNW 14 | SSW 14 | SSW 14 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | S 14 | S 14 | SSW 14 | SSW 13 | SSW 13 |
 kJ | 288 | 169 | 137 | 259 | 252 | 296 | 228 | 530 | 561 | 630 | 702 | 158 | 163 | 167 | 165 | 165 | 165 | 165 | 120 | 106 | 101 | 62 | 60 | 60 |
Swell 2 Height (m) Direction Period (s) | NW 18 | W 9 | SSW 15 | WNW 16 | S 18 | S 10 | S 10 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | S 16 | S 16 | SW 19 | SW 19 | — | S 20 | S 20 | S 20 | SW 18 | SW 18 | SW 18 | S 18 | S 18 |
| kJ | 81 | 64 | 270 | 234 | 25 | 2 | 2 | 231 | 246 | 87 | 158 | 46 | 46 | 15 | 14 | — | 7 | 7 | 7 | 12 | 12 | 12 | 25 | 25 |
Swell 3 Height (m) Direction Period (s) | S 11 | S 14 | WNW 17 | S 11 | S 11 | — | — | S 11 | W 20 | SSW 13 | S 16 | — | SW 19 | — | — | — | — | S 20 | S 20 | S 19 | — | S 18 | SW 18 | SW 18 |
| kJ | 2 | 107 | 117 | 2 | 2 | — | — | 2 | 7 | 60 | 46 | — | 15 | — | — | — | — | 7 | 7 | 7 | — | 6 | 12 | 12 |
Wind waves Height (m) Direction Period (s) | NW 8 | NW 7 | NW 7 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 7 | NW 7 | NW 8 | NW 8 | NW 9 | NW 9 | NW 9 | NW 9 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 9 | NW 9 |
| kJ | 799 | 550 | 440 | 756 | 1448 | 1925 | 1715 | 1109 | 776 | 698 | 735 | 1169 | 2000 | 3083 | 3121 | 2987 | 3119 | 3321 | 3576 | 3979 | 4747 | 4885 | 2918 | 1954 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 59 | 59 | 59 | 304 | 304 | 303 | 303 | 273 | 235 | 235 | 273 | 303 | 305 | 305 | 305 | 303 | 303 | 235 | 100 | 202 | 303 | 304 | 304 | 39 |
Best forecast wave conditions in Mendocino County | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Live Wind Speed (km/h)
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Ocean Swells (m)- Wind Speed (km/h)
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