Big River Surf Break

Lat Long: 39.30° N 123.80° W

Issued: 4 pm 11 Jun 2026 (local time)

Forecast update in  hr  min

Today's Big River sea temperature is
10.9° C

1.5°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 12 Jun 2026:

  • Best quality surf: Monday 15 Jun, 11PM (local time) - 3.5ft (1.0m), 21s period, SW swell with glassy winds.
  • Most powerful swell: Tuesday 16 Jun, 8PM (local time) - 4ft (1.2m), 19s period, SW swell with 1,100 kJ wave energy.
  • Next surfable swell (1★+): Friday 12 Jun, 2AM (local time) - 8ft (2.5m), 8s period with NW 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 Friday (Jun 12) at 2AM. The primary swell is predicted to be 2.5m and 8s period with a secondary swell of 0.9m and 15s. Another secondary swell of 0.4m and 13s is also forecast. 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 1.2m 19s and forecast to arrive on Tuesday (Jun 16) at 8PM. Winds are predicted to be glassy at the time the swell arrives.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Fri 12th Jun)8ft (2.5m) 8s
Best Surf11PM (Mon 15th Jun)3.5ft (1.0m) 21s
Most Powerful 8PM (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 16°C on Thu afternoon, min 10°C on Sat night). Wind will be generally light.

Days 5-7 Weather Summary

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

Thu
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
4
3
1
2
3
2
3
2
1
3
2
2
2
4
2
3
3
3
2
4
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)
3
NW
9
2.5
NW
8
2
NW
8
2.1
NW
8
2.3
NW
9
2
NW
9
1.6
NW
9
1.4
NW
9
1.5
NW
9
0.8
SSW
16
0.8
SSW
15
0.6
SW
24
1
S
15
1
SW
21
0.9
SW
20
1.1
SW
19
2.5
NW
9
2.3
NW
9
2.2
NW
10
2.1
NW
10
2.2
NW
10
Wave Graph
Metric surfscale
Energy kJ
1469
854
519
582
835
654
362
330
346
346
292
444
435
890
575
959
949
901
895
817
970
Wind (km/h)
15
NW
10
N
10
SSW
5
SSW
5
S
10
SW
5
WNW
10
S
15
SW
5
WNW
0
E
10
WSW
10
NW
5
S
5
SW
5
W
10
NW
10
WNW
10
WNW
5
S
15
SW
Wind State
cross-off
cross-off
on
on
cross-on
on
glassy
cross-on
on
glassy
glassy
cross-on
cross
glassy
on
cross-on
cross
cross-on
cross-on
glassy
on
High Tide
8:25PM1.90m
10:20AM1.16m
9:08PM2.02m
11:21AM1.23m
9:55PM2.12m
12:17PM1.28m
10:44PM2.17m
1:09PM1.33m
11:34PM2.16m
1:59PM1.36m
00:27AM2.09m
2:49PM1.40m
1:22AM1.96m
Low Tide
3:41AM-0.21m
2:41PM0.68m
4:30AM-0.41m
3:34PM0.74m
5:20AM-0.55m
4:28PM0.78m
6:09AM-0.62m
5:23PM0.79m
6:59AM-0.62m
6:20PM0.79m
7:48AM-0.56m
7:22PM0.77m
8:37AM-0.43m
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
clear
part cloud
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>
8:40
8:42
8:42
8:43
8:43
8:43
8:44
8:44
 mm
Temp °C
16
13
14
14
12
13
14
14
12
12
13
12
14
12
13
13
12
12
13
11
11
Feels °C
12
11
13
12
11
11
13
14
9
10
13
11
12
11
12
11
11
10
11
10
9
Swell 1
Height (m)
Direction
Period (s)
1.2
S
16
0.9
SSW
15
2
NW
8
2.1
NW
8
2.3
NW
9
2
NW
9
1.6
NW
9
1.4
NW
9
1.5
NW
9
1.3
NW
8
0.9
NW
8
0.9
NW
8
1
S
15
1.1
NW
8
1.6
NW
9
1.7
NW
9
2.3
NW
9
2.3
NW
9
2.2
NW
10
2.1
NW
10
2.2
NW
10
Energy kJ
734
360
519
582
835
654
362
330
328
219
99
99
435
167
427
450
790
901
895
817
970
Swell 2
Height (m)
Direction
Period (s)
0.4
NW
13
1
S
14
1
S
14
0.9
SSW
14
0.8
SSW
13
0.8
SSW
13
0.8
SSW
13
0.8
SSW
16
0.8
SSW
16
0.8
SSW
15
0.8
SSW
15
1
NW
8
1
SW
21
0.9
SW
20
1.1
SW
19
1.1
SW
19
1
SW
18
1.1
SW
18
1.1
SW
17
1
SW
16
Energy kJ
45
429
423
336
236
236
232
346
346
292
288
113
890
575
959
949
614
790
772
515
Swell 3
Height (m)
Direction
Period (s)
0.1
S
21
0.7
WNW
10
0.3
SSW
20
0.5
S
19
0.6
S
18
0.7
S
18
0.7
S
16
0.7
S
13
0.7
S
13
0.6
S
12
0.6
SW
24
0.6
SW
22
0.9
SSW
14
0.8
SSW
13
0.7
SSW
13
0.7
SSW
13
0.8
S
14
0.7
S
14
0.7
S
14
0.6
S
13
Energy kJ
9
102
75
192
230
307
267
168
166
108
444
407
313
239
187
181
261
203
196
127
Wind waves
Height (m)
Direction
Period (s)
3
NW
9
2.5
NW
8
2.5
NW
9
Energy kJ
1469
854
949
Nearest Offshore or Glassy
Rating
(10 max)
4
3
3
3
2
3
3
3
2
3
2
2
3
4
4
3
4
2
4
4
4
Distance (km)
0
0
59
34
7
36
0
19
36
0
0
85
82
0
57
7
19
648
39
0
57
Best forecast wave conditions in Mendocino County
Rating
(10 max)
4
4
3
3
4
3
3
3
2
3
2
4
4
4
4
4
4
Best forecast wave conditions in United States
Rating
(10 max)
4
4
3
3
4
3
4
4
3
3
4
2
3
4
4
4
4
3
4
4
4
Header Global
Rating
(10 max)
6
9
4
5
5
4
4
4
5
9
5
5
5
5
5
5
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)
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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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