Big River Surf Break

Lat Long: 39.30° N 123.80° W

Issued: 4 pm 16 Jun 2026 (local time)

Forecast update in  hr  min

Today's Big River sea temperature is
11.4° C

1.0°C colder than average for this time of year

Big River surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Big River surf forecast from 17 Jun 2026:

  • Best quality surf: Tuesday 16 Jun, 11PM (local time) - 4ft (1.2m), 19s period, SW swell with glassy winds.
  • Most powerful swell: Tuesday 16 Jun, 11PM (local time) - 4ft (1.2m), 19s period, SW swell with 1,100 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 16 Jun, 11PM (local time) - 4ft (1.2m), 19s period with SW swell.

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 Tuesday (Jun 16) at 11PM. The primary swell is predicted to be 1.2m and 19s period with a secondary swell of 1.5m and 8s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Big River in the next 16 days are 1.2m 19s and forecast to arrive on Tuesday (Jun 16) at 11PM. Winds are predicted to be glassy at the time the swell arrives.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+)11PM (Tue 16th Jun)4ft (1.2m) 19s
Best Surf11PM (Tue 16th Jun)4ft (1.2m) 19s
Most Powerful11PM (Tue 16th Jun)4ft (1.2m) 19s

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 13°C on Wed morning, min 10°C on Tue night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Very mild (max 14°C on Sun afternoon, min 10°C on Fri night). Wind will be generally light.

Tue
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
2
4
1
3
4
2
2
3
2
2
3
2
1
4
2
1
3
1
1
3
1
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)
1.1
SW
19
1.1
SW
19
1.1
SW
18
1.1
SW
18
1.9
NW
10
2
NW
10
1.9
NW
10
1.6
NW
10
1.5
NW
10
1.6
NW
10
1.5
NW
10
1.6
NW
10
1.2
SSW
16
2.4
NW
8
2.1
NW
9
2
NW
9
1.8
NW
9
1.6
NW
9
1.5
NW
9
0.8
SSW
16
1.4
NW
9
Wave Graph
Metric surfscale
Energy kJ
959
949
719
790
772
816
692
489
447
450
432
459
666
789
702
598
465
412
328
330
300
Wind (km/h)
10
W
0
S
15
SW
10
SW
5
E
15
SW
10
SW
5
ENE
10
WNW
10
W
5
NNE
15
WNW
20
NW
10
N
15
NW
15
NW
5
SSE
10
WSW
10
WSW
0
SSE
10
W
Wind State
cross-on
glassy
on
on
glassy
on
on
glassy
cross-on
cross-on
glassy
cross
cross
cross-off
cross
cross
glassy
on
on
glassy
cross-on
High Tide
00:27AM2.09m
2:49PM1.40m
1:22AM1.96m
3:39PM1.44m
2:19AM1.76m
4:27PM1.50m
3:21AM1.54m
5:15PM1.56m
4:33AM1.32m
6:00PM1.62m
5:56AM1.14m
6:43PM1.67m
7:28AM1.04m
Low Tide
6:20PM0.79m
7:48AM-0.56m
7:22PM0.77m
8:37AM-0.43m
8:29PM0.75m
9:25AM-0.27m
9:43PM0.71m
10:12AM-0.07m
11:02PM0.62m
10:58AM0.14m
00:22AM0.49m
11:44AM0.34m
1:34AM0.33m
12:32PM0.53m
part cloud
part cloud
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
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:48
5:48
5:48
5:48
5:48
5:48
5:48
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:43
8:44
8:44
8:44
8:44
8:45
8:45
8:45
 mm
Temp °C
12
11
13
13
11
13
13
12
13
13
13
12
12
12
13
14
12
13
13
12
13
Feels °C
10
10
10
11
10
11
11
11
11
11
12
10
9
11
11
12
11
11
11
12
11
Swell 1
Height (m)
Direction
Period (s)
1.1
SW
19
1.6
NW
8
1.8
NW
9
1.9
NW
10
1.9
NW
10
2
NW
10
1.9
NW
10
1.6
NW
10
1.5
NW
10
1.6
NW
10
1.5
NW
10
1.6
NW
10
1.2
SSW
16
2.1
NW
8
2.1
NW
9
2
NW
9
1.8
NW
9
1.6
NW
9
1.5
NW
9
1.3
NW
9
1.4
NW
9
Energy kJ
959
367
528
653
678
816
692
486
424
450
432
459
666
625
702
598
465
412
328
269
300
Swell 2
Height (m)
Direction
Period (s)
1.1
NW
8
1.1
SW
19
1.1
SW
18
1.1
SW
18
1.1
SW
17
1
SW
16
1
SW
16
1
SW
16
1
SW
15
1
SW
15
0.9
SW
14
0.9
SW
14
0.4
S
11
1
SSW
16
0.9
SSW
16
0.9
SSW
14
0.9
SSW
14
0.8
SSW
14
0.7
SSW
14
0.8
SSW
16
0.7
SSW
13
Energy kJ
133
949
719
790
772
515
502
489
447
424
297
297
40
525
377
362
330
264
161
330
154
Swell 3
Height (m)
Direction
Period (s)
0.8
SSW
13
0.7
SSW
13
0.8
S
14
0.8
S
14
0.8
S
14
0.7
S
13
0.7
S
13
0.7
S
13
0.6
S
12
0.6
S
12
0.7
SSW
18
0.5
SSW
17
0.2
SSW
21
0.4
SSW
20
0.4
SSW
20
0.4
SSW
19
0.7
SSW
18
0.6
SSW
18
0.5
SSW
18
0.7
SSW
13
0.6
SSW
16
Energy kJ
239
181
261
264
257
170
165
162
109
103
273
170
45
151
149
148
280
209
174
154
173
Wind waves
Height (m)
Direction
Period (s)
0.5
S
4
1.8
NW
9
2.4
NW
8
Energy kJ
7
503
789
Nearest Offshore or Glassy
Rating
(10 max)
3
4
4
4
4
4
3
3
3
3
3
2
2
4
2
3
3
3
3
3
2
Distance (km)
340
0
57
19
0
57
54
0
57
57
0
160
305
0
202
59
0
57
82
0
57
Best forecast wave conditions in Mendocino County
Rating
(10 max)
4
4
4
3
4
3
4
3
3
3
Best forecast wave conditions in United States
Rating
(10 max)
3
4
4
4
4
4
4
4
3
4
3
3
3
4
3
3
4
3
3
3
3
Header Global
Rating
(10 max)
4
5
5
5
8
6
6
7
4
7
5
5
8
4
7
5
5
5
5
5
7
  • Map Icons:
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  • 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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