Big River surfForecast / CAL – Mendocino County / USA

information circle48hr Weather and Surf, issued 4 am Thursday 30 Apr 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
12.6° C
(Which is slightly warmer than usual)

How big are the waves at Big River today?

The current surf forecast for Big River at 1PM is: 1.3m 13s primary swell from a West-northwest direction and 0.4m 14s secondary swell from a Southwest direction, 1.7m 8s secondary swell from a Northwest direction (forecast issued at 04:00am April 30). The wind direction is predicted to be cross-shore.

Time (PDT) & DateWave HeightWave Period
Morning (30 Apr)4.5ft (1.3m)14s
Afternoon (30 Apr)4.5ft (1.3m)13s
Evening (30 Apr)7.5ft (2.3m)8s

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 13°C on Thu morning, min 10°C on Thu morning). Wind will be generally light.

Thursday
30
Friday
1
Saturday
2
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
3
3
2
1
1
2
3
3
3
3
1
1
2
3
2
2
2
3
1
1
1
2
3
Swell
Height Map
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
Wave
Height (m)
Direction
Period (s)
1.2
WNW
14
1.2
WNW
14
1.3
WNW
14
1.3
WNW
13
1.3
WNW
13
2.1
NW
8
2.3
NW
8
2.3
NW
8
2.2
NW
8
2.2
NW
8
2.1
NW
8
2.1
NW
8
2.3
NW
8
2.5
NW
8
3
NW
8
2.5
NW
8
2.3
NW
8
2.2
NW
8
1.4
WNW
12
1.4
WNW
12
1.3
WNW
12
2.1
NW
8
2.3
NW
9
2.2
NW
9
Wave Graph
Metric surfscale
Energy kJ
561
530
561
545
536
523
667
611
574
574
515
579
659
813
1055
881
613
559
545
536
464
593
828
714
Wind (km/h)
10
NNW
10
NNW
15
NNW
10
WNW
20
NW
20
NW
10
NW
5
N
10
NNW
10
N
15
NNW
15
NW
20
NW
25
NW
15
NNW
15
NNW
20
NNW
15
NNW
15
NNW
15
NW
20
NW
20
NW
15
NW
0
WNW
cross-off
cross-off
cross-off
cross
cross
cross
cross
cross-off
cross-off
cross-off
cross-off
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
cross
glassy
High Tide
11:43AM1.25m
11:01PM1.73m
12:30PM1.23m
11:28PM1.73m
1:15PM1.20m
Low Tide
5:17AM-0.08m
4:47PM0.51m
5:54AM-0.16m
5:18PM0.61m
6:30AM-0.20m
5:50PM0.70m
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
cloud
cloud
part cloud
part cloud
cloud
part cloud
clear
part cloud
part cloud
part cloud
cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:18
6:16
6:15
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:07
8:07
8:08
Temp °C
10
9
10
13
12
12
11
10
10
10
10
12
13
12
11
11
10
10
10
12
12
12
11
11
8
6
7
10
8
8
9
9
8
8
7
9
9
8
8
8
6
6
7
9
8
8
8
11
Swell 1
Height (m)
Direction
Period (s)
1.2
WNW
14
1.2
WNW
14
1.3
WNW
14
1.8
NW
8
1.3
WNW
13
1.2
WNW
13
1.2
WNW
13
1
WNW
13
1
WNW
13
1
WNW
12
1
WNW
13
1
WNW
13
1.1
WNW
13
1
WNW
13
1
WNW
12
1.2
WNW
12
1.3
WNW
12
1.1
WNW
12
1.4
WNW
12
1.4
WNW
12
1.3
WNW
12
1
NW
12
0.8
WNW
11
0.9
WNW
11
Energy kJ
561
530
561
393
536
458
458
346
330
325
335
346
408
335
325
397
517
353
545
536
464
264
166
219
Swell 2
Height (m)
Direction
Period (s)
0.3
SW
15
0.4
SW
15
0.4
SW
14
1.3
WNW
13
0.4
SW
14
0.3
SW
14
0.3
SW
14
0.3
SW
14
0.3
SW
14
0.3
SW
13
0.3
SW
13
0.3
SW
13
0.3
SW
13
0.3
SW
13
0.3
SW
13
0.3
SW
13
0.2
WSW
13
0.3
SW
13
0.3
SW
13
0.2
SSW
18
0.2
SSW
18
0.2
SSW
18
0.3
WNW
20
0.4
WNW
20
Energy kJ
33
75
74
545
54
33
32
31
29
28
28
28
27
27
27
27
17
28
28
31
31
31
75
149
Swell 3
Height (m)
Direction
Period (s)
0.2
S
15
0.2
S
11
0.2
S
11
0.4
SW
14
0.2
S
11
0.2
S
11
0.2
S
13
0.2
S
13
0.2
S
13
0.2
S
13
0.2
S
11
0.2
S
11
0.1
S
10
0.1
S
10
0.2
S
12
0.2
S
12
0.2
S
12
0.2
S
12
0.2
SSW
18
0.3
SW
13
0.3
SW
13
0.2
WNW
21
0.1
SW
12
0.2
SSW
18
Energy kJ
17
9
9
54
9
9
14
14
14
14
9
9
2
2
11
11
11
11
31
28
25
44
6
31
Wind waves
Height (m)
Direction
Period (s)
2
NW
8
1.9
NW
8
1.8
NW
8
1.7
NW
8
2.1
NW
8
2.3
NW
8
2.3
NW
8
2.2
NW
8
2.2
NW
8
2.1
NW
8
2.1
NW
8
2.3
NW
8
2.5
NW
8
3
NW
8
2.5
NW
8
2.3
NW
8
2.2
NW
8
1.9
NW
7
1.8
NW
8
1.8
NW
8
2.1
NW
8
2.3
NW
9
2.2
NW
9
Energy kJ
468
413
373
344
523
667
611
574
574
515
579
659
813
1055
881
613
559
396
345
354
593
828
714
Nearest Offshore or Glassy
Rating
(10 max)
3
3
3
3
3
2
3
3
3
3
3
3
2
3
4
3
3
3
3
1
2
2
3
3
Distance (km)
0
0
0
160
129
304
19
0
0
0
0
160
183
304
29
59
59
59
0
277
306
896
23
0
Best forecast wave conditions in Mendocino County
Rating
(10 max)
3
3
3
4
3
3
3
3
4
3
3
3
4
3
4
Best forecast wave conditions in United States
Rating
(10 max)
3
3
4
3
3
2
4
3
4
3
4
3
2
3
4
3
3
4
4
3
3
3
3
4
Header Global
Rating
(10 max)
5
5
5
6
6
6
7
7
6
6
5
5
9
5
5
5
5
4
4
4
4
5
4
4
  • 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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