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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 3 am Sunday 30 Nov 2025 PSTForecast 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
13.3° 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: 2.1m 13s primary swell from a West direction and 0.6m 15s secondary swell from a South direction (forecast issued at 03:00am November 30). An open ocean swell of 0.9m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 4.
| Time (PST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 Nov) | 6.5ft (2.0m) | 12s |
| Afternoon (30 Nov) | 5.5ft (1.7m) | 12s |
| Evening (30 Nov) | 5ft (1.5m) | 11s |
Table - waves today at Big River. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sunday 30 | Monday 01 | Tuesday 02 | ||||||||||||||||||||||
| 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    | |||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 14 | 13 | 13 | 12 | 12 | 12 | 12 | 11 | 11 | 22 | 22 | 21 | 20 | 20 | 18 | 18 | 18 | 17 | 16 | 16 | 16 | 16 | 16 | 15 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 2091 | 1642 | 1475 | 1083 | 926 | 814 | 698 | 501 | 410 | 457 | 770 | 1071 | 1781 | 2222 | 2762 | 3198 | 3609 | 3727 | 3428 | 3304 | 3263 | 2979 | 2905 | 2576 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | off | off | cross- off | glass | cross- on | glass | glass | off | glass | glass | cross- off | glass | cross | cross- off | cross- off | cross- off |
High Tide / height (m) | 6:42AM 1.79 | 7:23PM 1.26 | 7:17AM 1.94 | 8:37PM 1.30 | 7:55AM 2.07 | 9:43PM 1.36 | ||||||||||||||||||
Low Tide / height (m) | 11:52PM 0.39 | 1:24PM 0.34 | 12:39AM 0.52 | 2:15PM 0.06 | 1:27AM 0.64 | 3:04PM -0.19 | ||||||||||||||||||
Sunday 30 | Monday 01 | Tuesday 02 | ||||||||||||||||||||||
| Sunrise | - | - | - | 7:13 | - | - | - | - | - | - | - | 7:15 | - | - | - | - | - | - | - | 7:16 | - | - | - | - |
| Sunset | - | - | - | - | - | 4:52 | - | - | - | - | - | - | - | 4:52 | - | - | - | - | - | - | - | 4:52 | - | - |
 |  | |  | |  |  | | | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 10 | 10 | 10 | 12 | 13 | 12 | 11 | 10 | 10 | 10 | 10 | 12 | 13 | 11 | 11 | 11 | 11 | 11 | 11 | 12 | 12 | 11 | 11 | 10 |
| Feels °C (?) | 9 | 8 | 8 | 9 | 8 | 7 | 8 | 8 | 8 | 8 | 8 | 11 | 11 | 10 | 10 | 9 | 10 | 10 | 9 | 11 | 8 | 7 | 6 | 5 |
- 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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