Russian Rivermouth surfForecast / CAL – Sonoma / USA

information circle48hr Weather and Surf, issued 4 am Monday 18 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
10.6° C
(Which is 1.4°C colder than average for this time of year)

How big are the waves at Russian Rivermouth today?

The current surf forecast for Russian Rivermouth at 9AM is: 1.1m 11s primary swell from a West-northwest direction and 0.3m 13s secondary swell from a South-southwest direction (forecast issued at 04:00am May 18). The wind direction is predicted to be cross-shore.

Time (PDT) & DateWave HeightWave Period
Morning (18 May)3.5ft (1.1m)11s
Afternoon (18 May)7ft (2.2m)10s
Evening (18 May)3.5ft (1.1m)10s

Table - waves today at Russian Rivermouth. (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Warm (max 23°C on Mon afternoon, min 11°C on Wed night). Wind will be generally light.

Monday
18
Tuesday
19
Wednesday
20
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
Rating
(10 max)
1
1
1
0
1
0
0
2
2
2
3
2
1
0
2
2
2
3
3
2
1
2
2
3
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
1.5
WNW
10
1.2
WNW
11
1.2
WNW
11
1.1
WNW
11
2
WNW
10
1.4
WNW
10
1
WNW
10
2.2
WNW
10
1.3
WNW
10
1.2
WNW
10
1.2
WNW
10
1.4
WNW
14
1.4
WNW
14
1.4
WNW
14
1.4
WNW
13
1.5
WNW
13
1.4
WNW
13
1.4
WNW
13
1.3
WNW
13
1.3
WNW
12
1.3
WNW
12
2.2
WNW
12
2.5
NW
10
2.5
NW
10
Wave Graph
Metric surfscale
Energy kJ
502
322
322
256
836
402
183
894
312
264
248
800
789
767
683
769
679
643
551
510
461
1332
1363
1475
Wind (km/h)
15
N
15
N
15
NNW
15
NNW
15
NW
25
NW
15
NW
15
NNW
10
NNW
5
N
5
N
5
W
15
W
20
WNW
10
NW
10
NNW
10
NW
5
N
0
N
5
W
10
W
15
WNW
15
NW
5
N
cross
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross
glassy
on
on
cross-on
cross-on
cross-on
cross-on
glassy
glassy
on
on
on
cross-on
cross
High Tide
11:35PM2.60m
2:04PM1.79m
00:25AM2.55m
3:06PM1.80m
1:19AM2.43m
4:08PM1.82m
Low Tide
7:05AM-0.14m
6:21PM1.34m
8:00AM-0.10m
7:21PM1.39m
8:56AM-0.00m
8:32PM1.41m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:58
5:58
5:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:19
8:20
8:21
Temp °C
16
15
17
22
23
23
17
14
14
14
18
22
22
21
17
16
14
13
15
19
19
19
15
13
10
10
12
17
18
17
13
10
10
11
16
19
18
17
14
13
11
11
14
17
17
16
13
12
Swell 1
Height (m)
Direction
Period (s)
1.5
WNW
10
1.2
WNW
11
1.2
WNW
11
1.1
WNW
11
1.1
WNW
10
0.4
SW
16
1
WNW
10
1.3
WNW
10
1.3
WNW
10
1.2
WNW
10
1.2
WNW
10
1.4
WNW
14
1.4
WNW
14
1.4
WNW
14
1.4
WNW
13
1.5
WNW
13
1.4
WNW
13
1.4
WNW
13
1.3
WNW
13
1.3
WNW
12
1.3
WNW
12
1.4
WNW
12
1.7
WNW
12
1.6
WNW
12
Energy kJ
502
322
322
256
265
67
183
318
312
264
248
800
789
767
683
769
679
643
551
510
461
550
723
689
Swell 2
Height (m)
Direction
Period (s)
0.4
SW
13
0.4
SW
13
0.3
SSW
13
0.3
SSW
13
0.4
SW
16
0.3
WNW
18
0.4
WNW
17
0.5
W
16
0.6
WNW
16
0.7
WNW
16
0.7
WNW
15
0.3
SW
16
0.3
SW
16
0.3
SW
17
0.3
SW
16
0.3
SW
17
0.3
SW
16
0.3
SW
16
0.4
SW
21
0.4
SW
21
0.3
SW
16
0.4
SW
16
0.4
SW
15
0.4
SW
15
Energy kJ
45
44
34
34
67
61
101
132
201
256
225
42
41
43
43
43
41
41
162
117
40
87
84
80
Swell 3
Height (m)
Direction
Period (s)
0.2
SSW
18
0.2
SSW
18
0.1
SW
18
0.3
SW
16
0.3
SSW
13
0.2
SSW
13
0.3
SW
16
0.3
SW
17
0.3
SW
16
0.3
SW
16
0.3
SW
16
0.2
SSW
15
0.2
SSW
15
0.2
SSW
15
0.2
SSW
15
0.3
SSW
15
0.3
SSW
14
0.3
SSW
14
0.3
SW
16
0.3
SW
16
0.3
SSW
14
0.3
SSW
13
0.3
SSW
13
0.3
SSW
13
Energy kJ
31
31
12
42
33
16
42
43
43
42
41
22
23
22
22
42
40
39
40
40
36
35
35
35
Wind waves
Height (m)
Direction
Period (s)
2
WNW
10
1.4
WNW
10
1
WNW
6
2.2
WNW
10
1.8
NW
10
1.8
NW
9
2.2
WNW
12
2.5
NW
10
2.5
NW
10
Energy kJ
836
402
58
894
587
505
1332
1363
1475
Nearest Offshore or Glassy
Rating
(10 max)
2
2
2
2
2
2
2
4
3
3
3
4
3
2
4
4
3
3
3
4
1
4
2
4
Distance (km)
12
1
1
12
192
193
12
1
1
1
0
18
72
192
18
1
12
0
0
45
50
18
91
1
Best forecast wave conditions in Sonoma County
Rating
(10 max)
2
3
3
2
2
4
3
4
4
4
4
4
4
4
4
4
4
Best forecast wave conditions in United States
Rating
(10 max)
4
4
4
4
4
4
4
4
4
4
4
4
4
3
4
4
5
5
4
4
4
4
3
4
Header Global
Rating
(10 max)
4
4
4
5
4
4
4
4
4
4
4
4
4
4
5
5
4
4
4
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)
Map placeholder

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