Russian Rivermouth surfForecast / CAL – Sonoma / USA

information circle16 Day Weather and Surf, issued 4 pm Friday 08 May 2026 PDT
Forecast 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
13.1° C
(Which is 1.2°C warmer than normal for this time of year)

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 Monday (May 11) at 5AM. The primary swell is predicted to be 1.4m and 10s period with a secondary swell of 0.6m and 16s. 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 2.3m 8s and forecast to arrive on Sunday (May 10) 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 0.4m 3s period and expected on Wednesday (May 13) at 11AM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Mon 11th May)4.5ft (1.4m) 10s
Best Surf 5AM (Mon 11th May)4.5ft (1.4m) 10s
Most Powerful11PM (Sun 10th May)7.5ft (2.3m) 8s

Table - best surf conditions forecast for Russian Rivermouth over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Warm (max 22°C on Sun afternoon, min 11°C on Fri night). Wind will be generally light.

Days 5-7 Weather Summary

Some drizzle, heaviest during Thu morning. Warm (max 22°C on Mon afternoon, min 11°C on Tue night). Wind will be generally light.

Fri
8
Saturday
9
Sunday
10
Monday
11
Tuesday
12
Wednesday
13
Thursday
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)
0
1
0
0
1
1
0
2
3
2
3
2
1
2
2
1
2
2
0
1
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.5
WNW
6
1.9
WNW
7
0.4
SW
19
1.6
WNW
6
1.7
WNW
7
1.4
WNW
11
1.8
WNW
8
1.4
WNW
10
1.2
WNW
10
1.1
WNW
11
1.1
WNW
11
1
WNW
11
0.9
WNW
11
0.8
WNW
11
0.9
W
11
1
W
12
1
W
11
0.8
W
11
0.7
SW
16
0.7
SW
16
0.7
SW
15
Wave Graph
Metric surfscale
Energy kJ
164
372
131
188
285
486
384
334
324
297
303
263
198
169
188
299
256
146
264
255
232
Wind (km/h)
20
WNW
10
NNW
15
WNW
20
WNW
15
NW
15
WNW
20
WNW
10
NNW
5
WSW
10
W
5
ESE
10
S
10
S
10
SE
15
SSE
10
S
10
E
15
SSE
10
WSW
10
NNW
15
WNW
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
glassy
on
glassy
cross-off
cross
cross-off
cross-off
cross
off
cross-off
on
cross-on
cross-on
High Tide
6:51PM1.70m
3:49AM1.79m
7:19PM1.76m
5:07AM1.71m
7:41PM1.85m
6:30AM1.66m
8:02PM1.97m
7:48AM1.65m
8:26PM2.10m
8:59AM1.67m
8:54PM2.25m
10:04AM1.72m
9:28PM2.40m
11:05AM1.76m
Low Tide
10:55PM1.55m
11:42AM0.59m
00:24AM1.45m
12:25PM0.65m
1:29AM1.27m
1:06PM0.72m
2:20AM1.03m
1:47PM0.80m
3:05AM0.75m
2:27PM0.90m
3:50AM0.47m
3:09PM1.01m
4:36AM0.21m
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
rain showers
rain showers
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:07
6:05
6:05
6:03
6:03
6:01
6:01
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:09
8:10
8:12
8:13
8:14
8:15
8:15
8:15
1
1
Temp °C
19
15
19
21
16
19
22
17
20
22
17
20
19
13
16
17
14
15
16
13
18
16
11
17
18
13
17
19
15
20
21
17
18
17
12
14
15
14
13
14
11
15
Swell 1
Height (m)
Direction
Period (s)
0.4
SW
13
1
WNW
8
0.6
W
11
0.5
W
14
1.1
W
8
1.4
WNW
11
0.5
SW
18
1.4
WNW
10
1.2
WNW
10
1.1
WNW
11
1.1
WNW
11
1
WNW
11
0.9
WNW
11
0.8
WNW
11
0.9
W
11
1
W
12
1
W
11
0.8
W
11
0.7
SW
16
0.7
SW
16
0.7
SW
15
Energy kJ
42
107
82
97
153
486
154
334
324
297
303
263
198
161
188
299
256
146
264
255
232
Swell 2
Height (m)
Direction
Period (s)
0.3
SW
17
0.4
SW
18
0.4
WNW
14
0.4
SW
16
0.8
WNW
12
0.6
SW
18
0.4
SW
14
0.6
SW
15
0.6
SW
16
0.6
SW
16
0.6
SW
16
0.6
SW
15
0.6
SW
15
0.6
SW
14
0.6
W
13
0.6
SSW
13
0.6
SSW
13
0.5
SW
17
0.7
W
10
0.6
W
10
0.6
W
9
Energy kJ
45
109
70
86
198
255
53
139
206
206
201
171
171
169
128
120
118
137
98
70
61
Swell 3
Height (m)
Direction
Period (s)
0.3
WNW
16
0.4
WNW
9
0.4
SW
19
0.4
SW
20
0.6
SW
16
0.1
SW
11
0.4
SW
18
0.1
S
11
0.1
S
11
0.2
W
15
0.6
SSW
14
0.3
SW
18
0.4
SW
18
0.4
SSW
13
0.2
S
10
0.3
SSW
4
0.4
SW
12
Energy kJ
50
34
131
98
163
5
111
2
2
18
125
50
80
67
8
3
37
Wind waves
Height (m)
Direction
Period (s)
1.5
WNW
6
1.9
WNW
7
0.9
WNW
6
1.6
WNW
6
1.7
WNW
7
1.4
NW
7
1.8
WNW
8
0.4
SSE
3
0.3
S
4
0.3
S
4
0.4
S
4
0.6
S
4
0.5
WNW
3
Energy kJ
164
372
48
188
285
189
384
4
3
3
4
13
6
Nearest Offshore or Glassy
Rating
(10 max)
2
3
2
2
3
4
2
3
3
3
3
2
3
2
2
2
2
2
1
2
2
Distance (km)
193
1
91
192
12
18
193
1
0
18
0
0
27
0
0
14
0
0
118
1
18
Best forecast wave conditions in Sonoma County
Rating
(10 max)
3
3
4
4
3
3
3
3
3
2
3
2
3
2
2
2
Best forecast wave conditions in United States
Rating
(10 max)
3
4
3
2
4
4
2
4
3
4
3
3
3
3
3
2
3
3
3
3
3
Header Global
Rating
(10 max)
5
4
5
4
4
9
9
5
4
5
9
9
9
5
6
6
5
5
5
4
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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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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