Surf Forecasts:
Russian Rivermouth surf forecast from 8 Aug 2026:
- Best quality surf: Friday 7 Aug, 11PM (local time) - 4.5ft (1.4m), 6s period, NW swell with glassy winds.
- Most powerful swell: Sunday 9 Aug, 11PM (local time) - 8ft (2.4m), 9s period, NW swell with 968 kJ wave energy.
- Next surfable swell (1★+): Friday 7 Aug, 11PM (local time) - 4.5ft (1.4m), 6s period with NW swell.
Best Forecast Surf Conditions for Russian Rivermouth this week:
The surf forecast for Russian Rivermouth over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 07) at 11PM. The primary swell is predicted to be 1.4m and 6s period with a secondary swell of 0.9m and 6s. Another secondary swell of 0.5m and 13s is also forecast. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Russian Rivermouth in the next 16 days are 2.4m 9s and forecast to arrive on Sunday (Aug 09) at 11PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 4s period and expected on Thursday (Aug 13) at 5PM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Fri 7th Aug) | 4.5ft (1.4m) 6s |
| Best Surf | 11PM (Fri 7th Aug) | 4.5ft (1.4m) 6s |
| Most Powerful | 11PM (Sun 9th Aug) | 8ft (2.4m) 9s |
Table - best surf conditions forecast for Russian Rivermouth over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a look at what's on offer at the Russian Rivermouth over the next couple of weeks.
Honestly, we're looking at a pretty lackluster stretch ahead. The Russian Rivermouth is a river mouth setup that's inconsistent, so it takes a decent swell to get it going. Right now, we've got a lot of small, weak energy, and the wind is often onshore or cross-onshore, which is a real bummer.
The first proper window to even think about paddling out is Thursday morning, August 13th. We've got a bit of a set-up with a 3ft swell from the WNW, but the real story is the 12-second period and a clean, cross-offshore breeze. The combined energy is moderate (383). It's small, but it's the cleanest wave we'll see for a while. Water temp is sitting at 56°, which is a bit colder than normal for this time of year, so you'll want a thicker suit.
The following week doesn't get much better. On Saturday morning, August 22nd, we get a rare moment of glassy conditions. The swell is tiny, only 2ft from the SSW, but with a solid 14-second period, the combined energy is weak (247). The wind is glassy, and the forecast calls for good surf conditions. This is a real micro-session, and since it's a rare, inconsistent break, you might just have it to yourself.
For the rest of the period, we're looking at small, wind-affected waves and poor surf conditions. The swell is there, but it's mostly short-period slop with onshore winds. There are long gaps between any decent opportunities. The only real standouts are those two mornings: Thursday the 13th for the cleanest, most rideable conditions, and Saturday the 22nd for the glassy, albeit tiny, swell. Don't expect much else.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Sun afternoon, min 13°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 22°C on Wed morning, min 12°C on Mon night). Wind will be generally light. | |||||||||||||||||||
Fri 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | ||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SW 19 | SW 16 | SW 18 | WNW 8 | WNW 10 | NW 10 | WNW 6 | NW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 10 | WNW 9 | WNW 9 | WNW 8 | WNW 8 | WNW 11 | WNW 12 | SW 16 | SW 15 |
Wave Graph  | ||||||||||||||||||||
 kJ | 129 | 132 | 150 | 158 | 286 | 667 | 136 | 918 | 225 | 158 | 260 | 197 | 143 | 218 | 147 | 109 | 202 | 203 | 153 | 191 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | glassy | cross-on | on | cross-on | on | on | cross-on | cross-on | on | glassy | cross-on | on | glassy | cross | cross-on | cross-off | cross-off | cross | glassy |
High Tide | 6:11PM2.28m | 9:20AM1.53m | 7:16PM2.36m | 10:11AM1.63m | 8:20PM2.44m | 10:53AM1.73m | 9:19PM2.50m | 11:31AM1.83m | 10:15PM2.50m | 12:07PM1.92m | 11:09PM2.44m | 12:42PM2.01m | 00:01AM2.31m | |||||||
Low Tide | 2:09AM0.32m | 12:40PM1.39m | 3:07AM0.17m | 2:02PM1.37m | 3:58AM0.05m | 3:12PM1.30m | 4:45AM-0.01m | 4:13PM1.19m | 5:28AM0.00m | 5:10PM1.07m | 6:08AM0.09m | 6:06PM0.96m | ||||||||
 |  |  | | | | | | | | | | | | | |  |  | | | |
 | — | — | 6:20 | — | — | 6:20 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:24 | — | — |
 | 8:15 | — | — | 8:15 | — | — | 8:14 | — | — | 8:13 | — | — | 8:10 | — | — | 8:09 | — | — | 8:08 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 17 | 22 | 25 | 20 | 25 | 26 | 19 | 21 | 21 | 15 | 20 | 21 | 15 | 22 | 21 | 15 | 17 | 18 | 16 |
Feels °C | 21 | 16 | 22 | 24 | 19 | 23 | 24 | 17 | 20 | 20 | 15 | 19 | 20 | 15 | 21 | 20 | 15 | 16 | 17 | 17 |
Swell 1 Height (m) Direction Period (s) | SW 12 | WNW 7 | WNW 8 | WNW 8 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | WNW 10 | WNW 9 | WNW 9 | WNW 8 | WNW 8 | WNW 11 | WNW 12 | WNW 8 | SW 15 |
| kJ | 74 | 49 | 60 | 71 | 286 | 232 | 65 | 365 | 225 | 158 | 260 | 197 | 143 | 218 | 147 | 109 | 202 | 203 | 70 | 191 |
Swell 2 Height (m) Direction Period (s) | SW 19 | SW 13 | SW 18 | SW 17 | SW 16 | SSW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 13 | SSW 13 | SW 14 | SW 18 | SW 18 | SW 16 | SW 16 | SW 16 | SW 16 | W 7 |
| kJ | 129 | 82 | 150 | 148 | 124 | 169 | 112 | 104 | 102 | 93 | 88 | 69 | 100 | 194 | 108 | 94 | 127 | 159 | 153 | 26 |
Swell 3 Height (m) Direction Period (s) | W 15 | SW 16 | SW 12 | SW 12 | SSW 12 | SW 12 | SW 12 | SSW 11 | SSW 11 | SW 20 | SW 20 | SW 19 | SW 18 | SSW 12 | SSW 12 | SSW 13 | SW 13 | S 11 | S 4 | S 10 |
| kJ | 4 | 132 | 36 | 35 | 56 | 37 | 22 | 24 | 12 | 60 | 60 | 58 | 113 | 28 | 28 | 67 | 45 | 21 | 5 | 18 |
Wind waves Height (m) Direction Period (s) | WNW 5 | — | — | WNW 8 | — | NW 10 | WNW 6 | NW 9 | — | — | — | — | — | — | — | — | — | SSE 3 | S 4 | — |
| kJ | 24 | — | — | 158 | — | 667 | 136 | 918 | — | — | — | — | — | — | — | — | — | 2 | 9 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 191 | 0 | 381 | 538 | 12 | 18 | 193 | 1 | 317 | 191 | 0 | 91 | 50 | 0 | 12 | 12 | 0 | 0 | 27 | 0 |
Best forecast wave conditions in Sonoma County | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
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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.
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 16 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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