Big River Surf Break

Lat Long: 39.30° N 123.80° W

Issued: 10 pm 30 Jun 2026 (local time)

Forecast update in  hr  min

Today's Big River sea temperature is
11.5° C

1.6°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 1 Jul 2026:

  • Best quality surf: Wednesday 1 Jul, 8AM (local time) - 11ft (3.5m), 10s period, NW swell with cross-offshore winds.
  • Most powerful swell: Wednesday 1 Jul, 8AM (local time) - 11ft (3.5m), 10s period, NW swell with 2,203 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 1 Jul, 8AM (local time) - 11ft (3.5m), 10s 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 Wednesday (Jul 01) at 8AM. The primary swell is predicted to be 3.5m and 10s period with a secondary swell of 3.0m and 10s. Another secondary swell of 0.6m and 18s 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 3.5m 10s and forecast to arrive on Wednesday (Jul 01) at 8AM. 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 (Wed 1st Jul)11ft (3.5m) 10s
Best Surf 8AM (Wed 1st Jul)11ft (3.5m) 10s
Most Powerful 8AM (Wed 1st Jul)11ft (3.5m) 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 14°C on Wed afternoon, min 9°C on Tue night). Winds decreasing (fresh winds from the NNW on Tue night, calm by Fri morning).

Days 5-7 Weather Summary

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

Wednesday
1
Thursday
2
Friday
3
Saturday
4
Sunday
5
Monday
6
Tue
7
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Rating
(10 max)
4
3
3
4
2
1
3
1
1
3
2
2
3
3
2
3
1
1
3
1
0
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
3
NW
10
3.5
NW
10
3
NW
9
2.4
NW
9
2.5
NW
8
2.1
NW
8
1.8
NW
8
2
NW
7
1.9
NW
7
1.8
NW
8
1.9
NW
8
2.2
NW
8
2.1
NW
8
0.8
SSW
18
2
NW
8
1.7
NW
8
0.8
SSW
16
0.8
SSW
20
0.8
SSW
20
0.9
SSW
18
Wave Graph
Metric surfscale
Energy kJ
1542
1930
2004
1341
901
899
539
354
421
361
385
435
604
596
424
492
361
344
432
485
569
Wind (km/h)
15
NNW
15
NW
15
NW
15
NNW
10
WNW
20
NW
10
NNW
10
NW
15
NW
10
NNW
10
WNW
10
WNW
5
W
10
SW
10
NW
5
NNW
20
NW
25
NW
10
NNW
20
NW
25
NW
Wind State
cross-off
cross
cross
cross-off
cross
cross
cross-off
cross
cross
cross-off
cross
cross-on
glassy
on
cross
glassy
cross
cross
cross-off
cross
cross
High Tide
11:45PM1.81m
2:11PM1.28m
00:22AM1.77m
2:44PM1.31m
1:00AM1.70m
3:16PM1.36m
1:41AM1.59m
3:48PM1.41m
2:28AM1.46m
4:20PM1.48m
3:26AM1.30m
4:54PM1.57m
4:40AM1.15m
5:31PM1.66m
Low Tide
7:06AM-0.21m
6:24PM0.89m
7:39AM-0.19m
7:09PM0.88m
8:13AM-0.13m
7:59PM0.86m
8:45AM-0.05m
8:57PM0.81m
9:18AM0.07m
10:02PM0.73m
9:53AM0.22m
11:13PM0.59m
10:31AM0.38m
clear
part cloud
clear
part cloud
part cloud
part cloud
clear
clear
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:52
5:52
5:52
5:52
5:54
5:54
5:54
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:45
8:45
8:45
8:45
8:45
8:45
8:44
8:44
 mm
Temp °C
13
13
14
12
13
13
12
13
13
13
13
13
12
12
13
12
12
12
11
12
13
Feels °C
7
10
11
8
11
10
10
11
10
11
11
11
11
11
11
11
8
8
8
8
8
Swell 1
Height (m)
Direction
Period (s)
0.7
SW
18
3
NW
10
0.7
SSW
16
0.7
SW
16
2.4
NW
9
0.7
SW
15
0.6
SW
15
1.8
NW
8
0.7
SSW
15
0.8
SSW
16
0.6
SSW
14
1.9
NW
8
2.2
NW
8
1.9
NW
8
0.8
SSW
18
0.8
WNW
13
0.9
WNW
12
0.8
SSW
16
0.9
NW
11
0.8
SSW
20
0.9
SSW
18
Energy kJ
319
1559
232
264
901
232
174
354
209
288
129
435
604
481
395
209
251
330
172
485
531
Swell 2
Height (m)
Direction
Period (s)
0.4
SW
14
0.7
SSW
18
0.4
SW
13
0.3
SSW
19
0.6
SSW
16
0.3
SSW
18
0.6
SSW
18
0.6
SSW
14
0.3
WNW
15
0.4
WNW
14
0.4
WNW
14
0.7
SSW
14
0.7
SSW
14
0.7
WNW
12
0.6
WNW
13
0.6
SSW
18
0.7
SSW
17
0.8
WNW
12
0.8
SSW
20
0.7
NW
11
0.6
SSW
14
Energy kJ
52
270
46
73
169
65
246
140
42
74
71
183
186
138
118
207
246
177
432
119
140
Swell 3
Height (m)
Direction
Period (s)
0.1
S
10
0.2
SSW
21
0.2
SSW
21
0.2
SSW
13
0.4
SSW
19
0.2
WNW
16
0.2
WNW
15
0.3
SSW
17
0.2
S
11
0.3
SSW
21
0.3
SSW
21
0.5
SSW
20
0.5
WNW
12
0.6
SSW
18
0.4
WNW
11
0.6
SSW
13
0.6
SSW
21
0.5
SSW
21
0.7
SSW
16
0.7
SW
16
0.3
WNW
11
Energy kJ
2
44
44
17
125
26
22
56
9
89
85
216
86
216
48
118
305
260
226
255
25
Wind waves
Height (m)
Direction
Period (s)
3
NW
9
3
NW
10
3.5
NW
10
3
NW
9
2.5
NW
8
2.1
NW
8
2
NW
7
1.9
NW
7
1.8
NW
8
2.1
NW
8
1.8
NW
8
2
NW
8
1.7
NW
8
1.8
NW
7
1.9
NW
7
1.8
NW
7
2.3
NW
7
Energy kJ
1542
1930
2004
1341
899
539
421
361
385
596
424
492
361
344
341
292
569
Nearest Offshore or Glassy
Rating
(10 max)
4
4
1
4
2
1
3
1
2
3
2
3
3
3
3
3
1
2
3
3
2
Distance (km)
0
85
648
0
111
304
0
202
82
0
617
23
0
36
59
0
277
304
0
183
303
Best forecast wave conditions in Mendocino County
Rating
(10 max)
4
4
3
3
3
3
3
3
4
4
Best forecast wave conditions in United States
Rating
(10 max)
4
4
1
4
2
2
3
2
2
3
2
3
4
3
3
4
2
3
4
3
3
Header Global
Rating
(10 max)
5
5
8
7
5
7
5
6
5
5
5
5
9
7
6
7
9
7
5
9
9
  • 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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