Big River Surf Break

Lat Long: 39.30° N 123.80° W

Issued: 10 pm 03 Jul 2026 (local time)

Forecast update in  hr  min

Today's Big River sea temperature is
11.1° C

2.0°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 4 Jul 2026:

  • Best quality surf: Wednesday 8 Jul, 11PM (local time) - 10ft (3.0m), 8s period, NW swell with cross-offshore winds.
  • Most powerful swell: Thursday 9 Jul, 8PM (local time) - 10ft (3.0m), 8s period, NW swell with 1,163 kJ wave energy.
  • Next surfable swell (1★+): Saturday 4 Jul, 8AM (local time) - 5ft (1.6m), 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 Saturday (Jul 04) at 8AM. The primary swell is predicted to be 1.6m and 8s period with a secondary swell of 0.5m and 16s. 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 3.0m 8s and forecast to arrive on Thursday (Jul 09) at 8PM. 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 (Sat 4th Jul)5ft (1.6m) 8s
Best Surf11PM (Wed 8th Jul)10ft (3.0m) 8s
Most Powerful 8PM (Thu 9th Jul)10ft (3.0m) 8s

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 Sat afternoon, min 10°C on Fri night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Very mild (max 14°C on Thu afternoon, min 9°C on Tue night). Wind will be generally light.

Saturday
4
Sunday
5
Monday
6
Tuesday
7
Wednesday
8
Thursday
9
Fri
10
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Rating
(10 max)
3
1
2
2
1
2
3
1
1
3
2
1
3
1
3
2
2
3
3
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
SSW
16
1.6
NW
8
1.6
NW
8
1.6
NW
8
1.7
NW
8
0.8
SSW
18
1.7
NW
8
1.7
NW
8
1.7
NW
8
0.8
SSW
20
0.8
SSW
20
0.9
SSW
18
1
SSW
18
0.9
SSW
18
2.5
NW
8
2.5
NW
7
2.5
NW
8
3
NW
8
2.5
NW
8
2.3
NW
8
2.5
NW
8
Wave Graph
Metric surfscale
Energy kJ
363
300
308
316
371
395
380
398
389
485
485
531
651
491
676
658
750
1135
813
719
903
Wind (km/h)
0
NNW
10
WSW
10
WNW
5
W
15
SW
10
WNW
5
S
10
W
15
NW
5
NW
15
WNW
20
NW
10
NNW
20
NW
25
NNW
20
NNW
20
NW
25
NNW
15
NNW
15
NW
15
NW
Wind State
glassy
on
cross-on
glassy
on
cross
glassy
cross-on
cross
glassy
cross
cross
cross-off
cross
cross-off
cross-off
cross
cross-off
cross-off
cross
cross
High Tide
1:41AM1.59m
3:48PM1.41m
2:28AM1.46m
4:20PM1.48m
3:26AM1.30m
4:54PM1.57m
4:40AM1.15m
5:31PM1.66m
6:13AM1.04m
6:13PM1.77m
7:51AM1.03m
7:00PM1.88m
9:17AM1.09m
7:51PM1.99m
Low Tide
8:45AM-0.05m
8:57PM0.81m
9:18AM0.07m
10:02PM0.73m
9:53AM0.22m
11:13PM0.59m
10:31AM0.38m
00:24AM0.40m
11:15AM0.54m
1:31AM0.18m
12:08PM0.69m
2:32AM-0.04m
1:09PM0.79m
part cloud
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
part cloud
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:52
5:54
5:54
5:54
5:56
5:56
5:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:45
8:45
8:45
8:44
8:44
8:44
8:43
8:43
 mm
Temp °C
12
12
13
11
12
12
11
11
12
11
12
12
11
12
13
13
13
14
12
13
13
Feels °C
11
10
11
10
9
10
9
11
10
9
10
9
8
8
8
9
9
10
8
10
9
Swell 1
Height (m)
Direction
Period (s)
1.8
NW
7
1.6
NW
8
1.6
NW
8
1.6
NW
8
1.7
NW
8
1.7
NW
8
1.7
NW
8
1.7
NW
8
0.8
SSW
16
1.7
NW
8
0.9
WNW
11
0.9
SSW
18
1
SSW
18
0.9
SSW
18
1.1
SSW
16
0.9
SSW
16
1.1
SSW
16
0.9
SSW
16
0.9
SSW
16
0.6
SSW
16
0.9
SSW
15
Energy kJ
363
300
308
316
371
380
380
398
330
335
204
531
651
491
667
452
643
436
377
196
367
Swell 2
Height (m)
Direction
Period (s)
0.8
SSW
16
0.6
SSW
14
0.7
SSW
14
0.7
SSW
14
0.7
WNW
13
0.8
SSW
18
0.8
WNW
13
0.8
WNW
12
0.8
WNW
12
0.8
SSW
20
0.8
SSW
20
0.6
SSW
14
0.7
SSW
15
0.6
SW
15
0.4
S
20
0.4
SSW
13
0.5
S
18
0.6
SW
15
Energy kJ
288
129
183
186
140
395
209
180
174
485
485
140
188
174
119
70
160
174
Swell 3
Height (m)
Direction
Period (s)
0.4
WNW
14
0.4
WNW
14
0.5
SSW
20
0.5
WNW
12
0.6
SSW
18
0.5
WNW
13
0.6
SSW
18
0.7
SSW
17
0.5
SSW
21
0.8
WNW
11
0.7
SW
16
0.2
S
8
0.2
S
21
0.2
S
11
0.4
S
19
Energy kJ
74
71
216
86
216
101
207
246
260
151
255
5
35
9
117
Wind waves
Height (m)
Direction
Period (s)
1.7
NW
8
1.3
NW
7
1.8
NW
7
1.9
NW
7
1.8
NW
7
2.5
NW
8
2.5
NW
7
2.5
NW
8
3
NW
8
2.5
NW
8
2.3
NW
8
2.5
NW
8
Energy kJ
389
184
275
341
336
676
658
750
1135
813
719
903
Nearest Offshore or Glassy
Rating
(10 max)
3
2
2
2
3
2
3
2
1
3
3
3
3
3
3
3
3
2
3
4
4
Distance (km)
0
155
82
0
85
277
0
202
304
0
183
303
0
183
303
59
202
304
0
129
82
Best forecast wave conditions in Mendocino County
Rating
(10 max)
3
3
3
4
4
3
4
Best forecast wave conditions in United States
Rating
(10 max)
3
2
2
3
3
2
3
2
2
4
4
3
4
4
3
4
4
2
4
4
4
Header Global
Rating
(10 max)
5
5
5
9
6
5
6
8
7
5
5
9
8
9
9
5
7
5
4
8
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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