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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
12 Day Weather and Surf, issued 3 pm Saturday 08 Nov 2025 PST
Best Forecast Surf Conditions for Big River this week:
The surf forecast for Big River over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Nov 08) at 10PM. The primary swell is predicted to be 1.8m and 13s period with a secondary swell of 0.7m and 12s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Big River in the next 12 days are 3.0m 13s and forecast to arrive on Thursday (Nov 13) at 10PM. Winds are predicted to be cross-shore at the time the swell arrives.
| Wave Type | Time (PST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Sat 8th Nov) | 6ft (1.8m) 13s |
| Best Surf | 7AM (Mon 10th Nov) | 6ft (1.9m) 11s |
| Most Powerful | 10PM (Thu 13th Nov) | 10ft (3.0m) 13s |
Table - best surf conditions forecast for Big River over the next 12 days.
Short Range Forecast Mostly dry. Warm (max 20°C on Sun morning, min 14°C on Sat afternoon). Wind will be generally light. | Days 3-6 Weather Summary Heavy rain (total 59mm), heaviest during Wed night. Very mild (max 18°C on Wed morning, min 9°C on Thu night). Winds increasing (calm on Tue night, fresh winds from the WNW by Thu morning). | ||||||||||||||||||||||
Sat 08 | Sunday 09 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | |||||||||||||||||
| PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |||
Rating (10 max) | |||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||||
| Period(s) (?) | 12 | 12 | 12 | 12 | 11 | 11 | 13 | 12 | 11 | 11 | 10 | 17 | 16 | 14 | 13 | 14 | 12 | 13 | 13 | 13 | 12 | ||
Wave (?)Graph  | |||||||||||||||||||||||
 kJ (?) | 1220 | 1000 | 393 | 418 | 882 | 914 | 1765 | 1059 | 606 | 664 | 380 | 364 | 739 | 2066 | 2323 | 2799 | 2873 | 2277 | 1834 | 951 | 2315 | ||
Wind (km/h) | |||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | off | cross- off | cross- off | cross- off | glass | cross- off | cross- off | cross | cross- off | cross- off | cross | cross- on | cross | cross- on | cross | glass | cross | cross- off | cross- off | cross- on | ||
High Tide / height (m) | 2:41AM 1.41 | 12:57PM 1.98 | 3:48AM 1.41 | 1:59PM 1.81 | 4:53AM 1.44 | 3:10PM 1.64 | 5:49AM 1.50 | 4:32PM 1.49 | 6:35AM 1.58 | 5:55PM 1.38 | 7:14AM 1.66 | 7:11PM 1.33 | 7:47AM 1.72 | ||||||||||
Low Tide / height (m) | 7:30PM -0.39 | 6:55AM 0.96 | 8:28PM -0.28 | 8:06AM 1.00 | 9:30PM -0.15 | 9:33AM 0.98 | 10:31PM -0.01 | 11:04AM 0.88 | 11:29PM 0.12 | 12:23PM 0.73 | 12:20AM 0.26 | 1:26PM 0.55 | 1:06AM 0.39 | ||||||||||
Sat 08 | Sunday 09 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | |||||||||||||||||
| Sunrise | - | - | 6:50 | - | - | 6:52 | - | - | 6:52 | - | - | 6:54 | - | - | 6:56 | - | - | 6:56 | - | - | 6:58 | ||
| Sunset | 5:06 | - | - | 5:05 | - | - | 5:04 | - | - | 5:04 | - | - | 5:02 | - | - | 5:01 | - | - | 5:00 | - | - | ||
 |  | | | |  | |  |  | | | | |  |  |  |  |  | | | | |||
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | 47 | 6 | 2 | 2 | 2 | - | - | - | ||
| Temp. °C | 14 | 15 | 20 | 17 | 19 | 20 | 18 | 16 | 15 | 13 | 14 | 18 | 17 | 16 | 11 | 12 | 10 | 10 | 10 | 11 | 12 | ||
| Feels °C (?) | 14 | 14 | 17 | 15 | 18 | 19 | 18 | 15 | 14 | 11 | 12 | 14 | 12 | 12 | 5 | 6 | 7 | 6 | 6 | 9 | 10 | ||
- 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
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Big River surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Big River Surf forecast
The above surf forecast table for Big River provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Big River can be found by selecting the local surf guide option on the grey menu. Our Big River surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Big River) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Big River may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Big River is 54 km (34 miles) from Ukiah. If you plan a vacation in Mendocino County, look for hotels and other accommodation in Ukiah. Ukiah has rooms for a wide range of budgets as well as car hire and transport links.
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