Big River surfForecast / CAL – Mendocino County / USA

information circle48hr Weather and Surf, issued 4 am Saturday 09 May 2026 PDT
Forecast update in hr  min  s Forecast update imminent
Big River surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Big River sea temperature is
12.5° C
(Which is slightly warmer than usual)

How big are the waves at Big River today?

The current surf forecast for Big River at 9AM is: 0.8m 14s primary swell from a West-northwest direction and 0.7m 11s secondary swell from a West direction, 1.4m 6s secondary swell from a Northwest direction (forecast issued at 04:00am May 09). The wind direction is predicted to be cross-shore.

Time (PDT) & DateWave HeightWave Period
Morning (09 May)2.5ft (0.8m)14s
Afternoon (09 May)3ft (0.9m)14s
Evening (09 May)3.5ft (1.0m)13s

Table - waves today at Big River. (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Very mild (max 14°C on Mon morning, min 10°C on Sat morning). Wind will be generally light.

Saturday
9
Sunday
10
Monday
11
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)
3
2
3
1
1
1
2
3
3
3
3
1
2
1
2
3
3
3
3
2
1
2
3
4
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
1.8
NW
7
0.6
SSW
18
0.8
WNW
14
0.8
WNW
14
0.6
SSW
20
0.9
WNW
13
1
WNW
13
1.1
WNW
12
1.2
WNW
12
0.9
SSW
16
0.8
SSW
18
1.4
WNW
12
1.3
WNW
12
2.5
NW
7
2.5
NW
7
2.2
NW
7
1.3
WNW
12
2.2
NW
8
1.5
WNW
11
1.5
WNW
11
1.5
WNW
11
1.5
WNW
11
2
WNW
11
2
WNW
11
Wave Graph
Metric surfscale
Energy kJ
275
207
268
264
253
257
356
398
420
427
368
541
470
645
777
516
422
544
544
524
515
515
955
955
Wind (km/h)
10
NNW
10
NNW
10
NNW
20
NW
20
NW
20
NW
20
NNW
10
N
10
NNW
10
NNW
15
NNW
20
NW
25
NNW
25
NNW
20
NNW
15
NNW
15
NNW
10
NNW
5
NNW
10
NW
15
NW
15
NW
10
NW
5
WNW
cross-off
cross-off
cross-off
cross
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
cross
glassy
High Tide
4:18AM1.31m
7:15PM1.24m
5:35AM1.24m
7:45PM1.34m
6:54AM1.20m
8:13PM1.46m
Low Tide
11:47AM0.05m
00:21AM0.83m
12:35PM0.10m
1:28AM0.66m
1:19PM0.16m
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
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>
6:07
6:05
6:05
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:15
8:15
8:16
Temp °C
10
10
10
12
12
12
11
11
10
10
11
13
13
13
13
12
11
10
11
14
14
13
12
12
8
8
8
8
8
8
8
10
8
8
9
9
8
8
10
9
8
8
9
12
11
11
11
12
Swell 1
Height (m)
Direction
Period (s)
0.7
WNW
15
0.7
WNW
15
0.8
WNW
14
0.8
W
10
0.9
W
10
0.9
W
9
1
WNW
13
1.1
WNW
12
1.2
WNW
12
0.9
W
11
1.1
WNW
11
1.4
WNW
12
1.3
WNW
12
0.6
WNW
12
0.6
SSW
18
1
WNW
10
1.3
WNW
12
0.9
SSW
16
1.6
NW
7
1.5
WNW
11
1.5
WNW
11
1.5
WNW
11
2
WNW
11
2
WNW
11
Energy kJ
193
188
268
128
143
132
356
398
420
191
325
541
470
98
246
236
422
427
241
524
515
515
955
955
Swell 2
Height (m)
Direction
Period (s)
0.6
SSW
18
0.6
SSW
18
0.7
W
11
0.8
WNW
14
0.8
WNW
14
0.9
WNW
13
0.6
SSW
16
0.8
W
8
0.8
W
8
0.9
SSW
16
0.8
SSW
18
0.7
SW
18
0.6
SSW
18
0.4
SSW
18
0.5
WNW
12
0.6
SSW
18
0.7
SW
15
0.1
SW
11
1.5
WNW
11
0.8
SSW
16
0.8
SSW
16
1.3
NW
7
0.9
SSW
16
0.9
SSW
16
Energy kJ
207
207
110
264
226
257
169
86
88
427
368
312
204
123
83
243
226
5
544
291
291
169
402
402
Swell 3
Height (m)
Direction
Period (s)
0.4
NW
10
0.4
NW
10
0.5
SSW
18
0.5
SSW
19
0.6
SSW
20
0.5
SSW
20
0.4
WSW
10
0.7
SW
16
0.7
SW
16
0.8
WNW
13
0.2
SSW
12
0.4
SSW
19
0.4
SSW
19
0.4
SSW
15
0.6
SSW
14
0.5
WNW
12
0.5
S
18
0.1
S
14
0.8
SSW
16
0.1
S
14
0.1
S
16
0.8
SSW
16
0.1
S
16
0.1
S
16
Energy kJ
25
23
180
207
253
218
33
261
261
186
14
123
123
85
140
83
160
4
326
4
5
291
5
5
Wind waves
Height (m)
Direction
Period (s)
1.8
NW
7
1.5
NW
6
1.4
NW
6
1.4
NW
6
1.6
NW
6
1.6
NW
6
1.9
NW
6
1.8
NW
7
1.6
NW
6
1.8
NW
7
1.8
NW
7
1.7
NW
7
1.8
NW
7
2.5
NW
7
2.5
NW
7
2.2
NW
7
2
NW
7
2.2
NW
8
1.4
NW
7
1.3
NW
7
1.4
NW
7
Energy kJ
275
172
146
151
177
200
306
275
213
271
299
248
308
645
777
516
421
544
205
184
189
Nearest Offshore or Glassy
Rating
(10 max)
3
2
3
2
2
2
3
3
3
3
3
4
2
2
2
3
3
3
3
3
3
3
4
4
Distance (km)
0
0
0
202
277
303
23
0
0
0
0
129
202
304
202
0
0
0
0
111
129
29
13
0
Best forecast wave conditions in Mendocino County
Rating
(10 max)
3
3
3
3
3
4
3
3
4
4
4
3
3
4
4
Best forecast wave conditions in United States
Rating
(10 max)
4
4
3
3
2
2
3
4
4
4
4
4
2
2
4
4
4
4
3
3
3
4
4
4
Header Global
Rating
(10 max)
5
5
9
5
4
5
4
4
4
9
9
7
5
5
5
5
5
5
5
5
9
6
6
6
  • 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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