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Russian Rivermouth Surf Forecast
/ CAL – Sonoma (10 breaks) / California (404 breaks) /
Surf Forecasts:
Russian Rivermouth surfForecast / CAL – Sonoma / USA
12 Day Weather and Surf, issued 3 pm Sunday 21 Dec 2025 PSTForecast update in hr min s Forecast update imminent
Russian Rivermouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Russian Rivermouth sea temperature is
13.0° C
(Which is slightly warmer than usual)Best Forecast Surf Conditions for Russian Rivermouth this week:
The surf forecast for Russian Rivermouth over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Dec 23) at 4AM. The primary swell is predicted to be 0.9m and 8s period with a secondary swell of 0.5m and 10s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Russian Rivermouth in the next 12 days are 4.0m 10s and forecast to arrive on Thursday (Dec 25) at 10AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Tuesday (Dec 23) at 1PM.
| Wave Type | Time (PST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Tue 23rd Dec) | 3ft (0.9m) 8s |
| Best Surf | 4AM (Thu 25th Dec) | 11ft (3.5m) 9s |
| Most Powerful | 10AM (Thu 25th Dec) | 13ft (4.0m) 10s |
Table - best surf conditions forecast for Russian Rivermouth over the next 12 days.
Updates in hr min s Forecast update imminent
Short Range Forecast Heavy rain (total 77mm), heaviest during Sun afternoon. Very mild (max 14°C on Sun afternoon, min 10°C on Tue night). Winds increasing (calm on Mon night, strong winds from the SSE by Tue night). | Days 3-6 Weather Summary Heavy rain (total 54mm), heaviest during Thu night. Very mild (max 13°C on Wed afternoon, min 7°C on Fri night). Winds decreasing (strong winds from the SSE on Wed night, calm by Thu night). | ||||||||||||||||||||||
Sun 21 | Monday 22 | Tuesday 23 | Wednesday 24 | Thursday 25 | Friday 26 | Saturday 27 | |||||||||||||||||
| 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) (?) | 8 | 8 | 8 | 8 | 8 | 12 | 12 | 10 | 12 | 12 | 8 | 10 | 10 | 11 | 12 | 9 | 9 | 9 | 8 | 10 | 7 | ||
Wave (?)Graph  | |||||||||||||||||||||||
 kJ (?) | 857 | 465 | 274 | 207 | 128 | 344 | 485 | 1035 | 387 | 196 | 1014 | 3530 | 3147 | 1031 | 673 | 586 | 376 | 238 | 128 | 61 | 28 | ||
Wind (km/h) | |||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross- on | cross- on | cross- on | cross- on | cross- off | cross- off | on | cross- off | cross- off | cross- off | cross- on | cross | cross | glass | on | cross- off | glass | cross- on | cross- off | glass | ||
High Tide / height (m) | 1:25AM 1.70 | 11:13AM 2.23 | 2:03AM 1.72 | 11:51AM 2.14 | 2:39AM 1.76 | 12:32PM 2.02 | 3:12AM 1.82 | 1:21PM 1.86 | 3:43AM 1.90 | 2:26PM 1.68 | 4:15AM 2.00 | 3:52PM 1.52 | 4:51AM 2.12 | ||||||||||
Low Tide / height (m) | 6:15PM 0.19 | 5:21AM 1.44 | 6:50PM 0.23 | 6:07AM 1.45 | 7:25PM 0.30 | 7:03AM 1.44 | 7:58PM 0.40 | 8:10AM 1.39 | 8:32PM 0.52 | 9:27AM 1.27 | 9:08PM 0.67 | 10:46AM 1.08 | 9:48PM 0.84 | 11:57AM 0.84 | |||||||||
Sun 21 | Monday 22 | Tuesday 23 | Wednesday 24 | Thursday 25 | Friday 26 | Saturday 27 | |||||||||||||||||
| Sunrise | - | - | 7:26 | - | - | 7:26 | - | - | 7:26 | - | - | 7:26 | - | - | 7:28 | - | - | 7:28 | - | - | 7:28 | ||
| Sunset | 4:54 | - | - | 4:54 | - | - | 4:55 | - | - | 4:55 | - | - | 4:57 | - | - | 4:57 | - | - | 4:58 | - | - | ||
 |  |  |  |  | | |  |  | | | | | | | |  |  | |  | | |||
Rain (mm) | 20 | 12 | - | 3 | 8 | 4 | 3 | 26 | 1 | 7 | 18 | 4 | 5 | 16 | 3 | 1 | - | - | - | - | - | ||
| Temp. °C | 14 | 14 | 14 | 13 | 11 | 13 | 14 | 14 | 12 | 13 | 13 | 12 | 11 | 12 | 11 | 11 | 8 | 12 | 12 | 8 | 12 | ||
| Feels °C (?) | 10 | 11 | 12 | 11 | 10 | 8 | 8 | 6 | 8 | 7 | 6 | 7 | 5 | 8 | 8 | 9 | 6 | 10 | 10 | 6 | 10 | ||
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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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 Russian Rivermouth 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.
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Information about the Russian Rivermouth Surf forecast
The above surf forecast table for Russian Rivermouth provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Russian Rivermouth can be found by selecting the local surf guide option on the grey menu. Our Russian Rivermouth 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 (Russian Rivermouth) 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 Russian Rivermouth 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.
Russian Rivermouth is 30 km (19 miles) from the city of Windsor. If you plan a vacation in Sonoma County, look for hotels and other accommodation in Windsor. Windsor has rooms for a wide range of budgets as well as car hire and transport links.
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