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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 Wednesday 25 Mar 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
9.6° C
(Which is 2.1°C colder than average for this time of year)How big are the waves at Big River today?
The current surf forecast for Big River at 11AM is: 1.1m 12s primary swell from a Northwest direction and 0.6m 16s secondary swell from a Southwest direction, 1.2m 9s secondary swell from a West-northwest direction (forecast issued at 04:00am March 25). The wind direction is predicted to be cross-shore.
| Time (PDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (25 Mar) | 3.5ft (1.0m) | 12s |
| Afternoon (25 Mar) | 7ft (2.1m) | 11s |
| Evening (25 Mar) | 10ft (3.0m) | 8s |
Table - waves today at Big River. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 25 | Thursday 26 | Friday 27 | ||||||||||||||||||||||
| 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 | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    | |||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 11 | 17 | 12 | 12 | 11 | 7 | 8 | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 316 | 309 | 295 | 355 | 1147 | 843 | 1213 | 1503 | 1404 | 1794 | 1755 | 1594 | 1520 | 1672 | 1869 | 1940 | 1636 | 1271 | 1047 | 906 | 777 | 817 | 1026 | 1178 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | 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 | glass | glass | off | cross- off | cross- off | cross | cross- on | cross | cross- off | glass |
High Tide / height (m) | 4:02AM 1.74 | 7:20PM 1.13 | 5:18AM 1.67 | 8:27PM 1.21 | 6:41AM 1.62 | 9:13PM 1.31 | ||||||||||||||||||
Low Tide / height (m) | 11:51AM -0.14 | 11:02PM 0.91 | 1:05PM -0.14 | 12:42AM 0.88 | 2:08PM -0.14 | |||||||||||||||||||
Wednesday 25 | Thursday 26 | Friday 27 | ||||||||||||||||||||||
| Sunrise | - | - | 7:11 | - | - | - | - | - | - | - | 7:09 | - | - | - | - | - | - | - | 7:07 | - | - | - | - | - |
| Sunset | - | - | - | - | - | 7:30 | - | - | - | - | - | - | - | 7:31 | - | - | - | - | - | - | - | 7:32 | - | - |
 | |  | |  | |  | | | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 13 | 13 | 12 | 12 | 11 | 11 | 11 | 8 | 7 | 7 | 6 | 9 | 11 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 10 | 10 |
| Feels °C (?) | 10 | 10 | 9 | 9 | 6 | 4 | 4 | 0 | -1 | 1 | 1 | 4 | 6 | 8 | 10 | 10 | 9 | 10 | 10 | 10 | 9 | 10 | 7 | 9 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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