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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 Saturday 21 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
10.5° C
(Which is 1.2°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 10AM is: 2.2m 7s primary swell from a Northwest direction and 0.8m 10s secondary swell from a West direction, 0.5m 15s secondary swell from a South-southwest direction (forecast issued at 04:00am March 21). The wind direction is predicted to be cross-offshore.
| Time (PDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Mar) | 7ft (2.1m) | 7s |
| Afternoon (21 Mar) | 10ft (3.0m) | 8s |
| Evening (21 Mar) | 11ft (3.5m) | 9s |
Table - waves today at Big River. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 21 | Sunday 22 | Monday 23 | ||||||||||||||||||||||
| 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) (?) | 7 | 7 | 7 | 7 | 8 | 8 | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 12 | 11 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 480 | 716 | 432 | 535 | 839 | 1771 | 2150 | 2043 | 1808 | 1801 | 2026 | 1527 | 1449 | 1433 | 1542 | 1499 | 1541 | 1462 | 1370 | 1090 | 882 | 842 | 963 | 770 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | 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 | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross | cross- off | cross- off | off |
High Tide / height (m) | 12:56AM 1.83 | 1:57PM 1.37 | 1:31AM 1.87 | 3:01PM 1.25 | 2:12AM 1.87 | 4:17PM 1.14 | ||||||||||||||||||
Low Tide / height (m) | 7:34AM -0.09 | 7:12PM 0.45 | 8:27AM -0.15 | 7:50PM 0.60 | 9:28AM -0.16 | 8:35PM 0.74 | ||||||||||||||||||
Saturday 21 | Sunday 22 | Monday 23 | ||||||||||||||||||||||
| Sunrise | - | - | 7:16 | - | - | - | - | - | - | - | 7:15 | - | - | - | - | - | - | - | 7:13 | - | - | - | - | - |
| Sunset | - | - | - | - | - | 7:27 | - | - | - | - | - | - | - | 7:28 | - | - | - | - | - | - | - | 7:29 | - | - |
 | |  | | | |  | | | | | | | | | | | |  | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 11 | 11 | 11 | 12 | 11 | 11 | 10 | 9 | 8 | 8 | 8 | 11 | 11 | 10 | 9 | 9 | 8 | 8 | 8 | 11 | 10 | 10 | 9 | 9 |
| Feels °C (?) | 7 | 7 | 7 | 8 | 4 | 4 | 4 | 4 | 4 | 5 | 5 | 7 | 7 | 6 | 6 | 7 | 5 | 5 | 5 | 9 | 7 | 7 | 7 | 7 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
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