Big River surfForecast / CAL – Mendocino County / USA

information circle16 Day Weather and Surf, issued 4 am Sunday 26 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
12.0° C
(Which is normal for this time of year)

Best Forecast Surf Conditions for Big River this week:

The surf forecast for Big River over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Apr 26) at 8AM. The primary swell is predicted to be 1.0m and 15s period with a secondary swell of 1.2m and 8s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Big River in the next 16 days are 4.5m 10s and forecast to arrive on Friday (May 01) at 5PM. Winds are predicted to be cross-offshore at the time the swell arrives.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Sun 26th Apr)3.5ft (1.0m) 15s
Best Surf11PM (Thu 30th Apr)10ft (3.0m) 9s
Most Powerful 5PM (Fri 1st May)15ft (4.5m) 10s

Table - best surf conditions forecast for Big River over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Very mild (max 12°C on Sun morning, min 9°C on Mon night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Very mild (max 13°C on Wed morning, min 10°C on Wed morning). Winds increasing (calm on Wed night, fresh winds from the NNW by Fri afternoon).

Sunday
26
Monday
27
Tuesday
28
Wednesday
29
Thursday
30
Friday
1
Saturday
2
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
1
2
1
1
2
1
1
2
1
2
3
3
2
4
2
1
2
1
1
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>
Wave
Height (m)
Direction
Period (s)
1
WNW
14
1.1
WNW
14
1.1
WNW
13
1
WNW
13
1.4
NW
10
0.9
WNW
12
1.2
NW
8
0.9
WNW
12
1.5
NW
8
0.8
WNW
17
1.1
NW
16
1.2
WNW
14
2.2
NW
9
3
NW
9
3
NW
10
3
NW
10
4.5
NW
10
3.5
NW
9
2.5
NW
9
3.5
NW
10
3.5
NW
10
Wave Graph
Metric surfscale
Energy kJ
400
501
427
330
365
218
160
222
257
386
587
561
770
1209
1552
1470
3784
1794
1032
2169
2218
Wind (km/h)
15
NW
20
NW
5
NW
15
WNW
20
NW
5
E
15
WNW
15
NW
10
NNE
10
WNW
15
NW
5
NNE
15
WNW
20
NW
15
NNW
20
NW
35
NNW
25
NNW
25
NW
25
NW
15
NNW
cross
cross
cross
cross
cross
cross-off
cross
cross
off
cross-on
cross
glassy
cross
cross
cross-off
cross
cross-off
cross-off
cross
cross
cross-off
High Tide
9:05PM1.52m
8:59AM1.32m
9:37PM1.61m
9:59AM1.29m
10:07PM1.67m
10:53AM1.27m
10:34PM1.71m
11:43AM1.25m
11:01PM1.73m
12:30PM1.23m
11:28PM1.73m
1:15PM1.20m
11:56PM1.71m
Low Tide
2:19PM0.04m
3:06AM0.37m
3:02PM0.15m
3:56AM0.19m
3:40PM0.27m
4:39AM0.04m
4:15PM0.39m
5:17AM-0.08m
4:47PM0.51m
5:54AM-0.16m
5:18PM0.61m
6:30AM-0.20m
5:50PM0.70m
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:22
6:22
6:20
6:18
6:18
6:16
6:15
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:02
8:04
8:05
8:06
8:07
8:07
8:08
Temp °C
12
12
11
12
12
10
12
12
12
13
13
11
13
13
11
13
12
11
11
11
11
9
8
7
9
8
6
9
8
9
10
10
9
10
9
9
9
6
4
5
5
5
Swell 1
Height (m)
Direction
Period (s)
1.2
NW
8
1.1
WNW
14
1.3
NW
9
1.2
NW
9
1
WNW
12
1.1
NW
6
1.2
NW
8
1.2
NW
7
1.5
NW
8
1.3
NW
8
1.2
NW
8
1.8
NW
8
2
NW
9
1.3
WNW
13
1.1
WNW
12
1.5
WNW
12
0.3
SW
13
0.2
WSW
13
1.6
NW
12
0.2
WNW
20
0.7
WNW
18
Energy kJ
191
501
260
230
304
93
160
152
257
233
187
479
640
572
371
680
27
17
660
38
280
Swell 2
Height (m)
Direction
Period (s)
1
WNW
14
0.4
S
12
1.1
WNW
13
1
WNW
13
0.4
S
12
1
NW
8
0.8
WNW
11
0.9
WNW
12
0.8
WNW
11
0.8
WNW
17
1.1
NW
16
1.2
WNW
14
1.3
WNW
13
0.3
SW
14
0.3
SW
14
0.3
SW
13
0.1
S
10
0.1
S
12
0.2
SSW
18
0.2
SSW
18
0.4
SW
16
Energy kJ
400
46
427
330
46
125
157
222
154
386
587
561
545
33
29
28
2
3
31
31
66
Swell 3
Height (m)
Direction
Period (s)
0.4
S
13
0.3
SW
15
0.4
S
12
0.4
S
12
0.3
SW
15
0.9
WNW
12
0.4
SW
13
0.4
NNW
9
0.5
NW
19
0.8
WNW
11
0.8
WNW
10
0.3
SW
15
0.4
SW
14
0.2
S
11
0.2
S
13
0.2
S
11
0.1
S
12
0.1
SW
18
0.2
WSW
14
0.2
WSW
14
0.1
S
11
Energy kJ
51
33
46
45
36
218
45
32
184
128
118
33
54
9
14
9
3
12
18
20
2
Wind waves
Height (m)
Direction
Period (s)
1.2
NW
8
1.4
NW
10
2.2
NW
9
3
NW
9
3
NW
10
3
NW
10
4.5
NW
10
3.5
NW
9
2.5
NW
9
3.5
NW
10
3.5
NW
10
Energy kJ
187
365
770
1209
1552
1470
3784
1794
1032
2169
2218
Nearest Offshore or Glassy
Rating
(10 max)
2
2
3
2
1
2
1
1
2
2
1
3
3
1
4
3
2
5
2
4
4
Distance (km)
277
1005
13
183
944
0
111
305
0
97
304
0
160
306
0
111
304
59
273
82
181
Best forecast wave conditions in Mendocino County
Rating
(10 max)
3
2
3
4
4
5
Best forecast wave conditions in United States
Rating
(10 max)
3
3
3
3
1
2
2
2
3
3
2
4
3
3
4
3
3
5
4
4
4
Header Global
Rating
(10 max)
7
8
6
6
5
5
5
9
6
7
5
5
4
7
6
5
5
5
4
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 Big River Surf forecast

The above surf forecast table for Big River provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Big River can be found by selecting the local surf guide option on the grey menu. Our Big River 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 (Big River) 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 Big River 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.

Big River is 54 km (34 miles) from Ukiah. If you plan a vacation in Mendocino County, look for hotels and other accommodation in Ukiah. Ukiah has rooms for a wide range of budgets as well as car hire and transport links.

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