Big River Surf Break

Lat Long: 39.30° N 123.80° W

Issued: 4 am 15 Jun 2026 (local time)

Forecast update in  hr  min

Today's Big River sea temperature is
11.2° C

1.3°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 15 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: Sunday 21 Jun, 8AM (local time) - 8ft (2.5m), 10s period, NW swell with 1,312 kJ wave energy.
  • Next surfable swell (1★+): Monday 15 Jun, 8PM (local time) - 3ft (0.9m), 21s 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 Monday (Jun 15) at 8PM. The primary swell is predicted to be 0.9m and 21s period with a secondary swell of 1.0m and 14s. 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 2.5m 10s and forecast to arrive on Sunday (Jun 21) at 8AM. Winds are predicted to be glassy at the time the swell arrives.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Mon 15th Jun)3ft (0.9m) 21s
Best Surf11PM (Mon 15th Jun)3.5ft (1.0m) 21s
Most Powerful 8AM (Sun 21st Jun)8ft (2.5m) 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 13°C on Mon afternoon, min 10°C on Mon night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Very mild (max 13°C on Thu afternoon, min 10°C on Fri night). Wind will be generally light.

Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
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
2
3
2
3
4
2
3
3
2
3
3
2
2
3
2
1
4
3
3
4
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.6
SW
24
1
S
15
1
SW
21
0.9
SW
20
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
1.8
NW
10
1.8
NW
10
1.8
NW
10
1.8
NW
10
1.8
NW
10
1.8
NW
10
2.3
NW
10
2.5
NW
10
2.5
NW
10
2.4
NW
10
Wave Graph
Metric surfscale
Energy kJ
444
435
890
575
959
949
719
790
772
800
724
585
585
573
622
653
627
992
1312
1234
1149
Wind (km/h)
10
WNW
10
WNW
5
SSE
10
WSW
5
WSW
5
SSW
15
SW
10
SW
5
S
15
SW
5
WSW
0
SE
10
WSW
10
W
5
ENE
15
WNW
20
NW
10
NNW
10
NW
15
NW
5
NNW
Wind State
cross-on
cross
glassy
on
cross-on
glassy
on
on
cross-on
on
on
glassy
on
cross-on
glassy
cross
cross
cross-off
cross
cross
glassy
High Tide
1:09PM1.33m
11:34PM2.16m
1:59PM1.36m
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
Low Tide
5:23PM0.79m
6:59AM-0.62m
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
part cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
part cloud
clear
<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
8:43
8:44
8:44
8:44
8:44
8:45
 mm
Temp °C
12
13
11
13
13
12
13
13
12
12
13
12
12
12
12
12
12
11
12
13
12
Feels °C
10
11
9
12
11
11
11
11
12
11
11
12
11
10
11
9
9
9
10
10
11
Swell 1
Height (m)
Direction
Period (s)
0.8
SSW
15
1
S
15
1
SW
21
1.4
NW
8
1.5
NW
9
1.8
NW
9
1.9
NW
9
1.9
NW
9
1.9
NW
10
2
NW
10
1.9
NW
10
1.8
NW
10
1.8
NW
10
1.8
NW
10
1.8
NW
10
1.8
NW
10
1.8
NW
10
2.3
NW
10
2.5
NW
10
2.5
NW
10
2.4
NW
10
Energy kJ
288
435
890
244
328
493
586
639
665
800
724
585
585
573
622
653
627
992
1312
1234
1149
Swell 2
Height (m)
Direction
Period (s)
0.7
NW
7
0.6
NW
7
0.9
SSW
14
0.9
SW
20
1.1
SW
19
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
1.1
SSW
16
1
SSW
16
0.9
SSW
16
0.9
SSW
14
0.9
SSW
14
Energy kJ
47
38
313
575
959
949
719
790
772
515
502
489
453
424
301
297
612
525
377
330
330
Swell 3
Height (m)
Direction
Period (s)
0.6
SW
24
0.6
SW
22
0.8
NW
7
0.8
SSW
13
0.7
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
0.4
S
11
0.4
SW
20
0.4
SSW
20
0.4
SW
19
0.7
SSW
18
Energy kJ
444
407
54
239
187
181
261
264
257
170
165
165
110
103
273
170
41
98
149
96
280
Wind waves
Height (m)
Direction
Period (s)
Energy kJ
Nearest Offshore or Glassy
Rating
(10 max)
3
3
3
3
3
4
4
4
4
4
3
3
3
3
3
2
2
4
2
4
4
Distance (km)
84
160
0
57
7
0
36
13
13
36
7
0
57
54
0
202
305
0
773
29
0
Best forecast wave conditions in Mendocino County
Rating
(10 max)
4
4
4
4
4
4
4
4
4
3
4
4
4
4
Best forecast wave conditions in United States
Rating
(10 max)
4
3
4
4
4
4
4
4
4
4
4
4
4
3
4
2
2
4
3
4
4
Header Global
Rating
(10 max)
5
5
5
4
4
5
5
5
8
7
6
5
6
6
4
9
8
9
9
8
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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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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