Big River Surf Break

Lat Long: 39.30° N 123.80° W

Issued: 4 am 01 Jul 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: Thursday 2 Jul, 2AM (local time) - 10ft (3.0m), 9s period, NW swell with cross-offshore winds.
  • Most powerful swell: Wednesday 1 Jul, 8PM (local time) - 11ft (3.5m), 9s period, NW swell with 2,180 kJ wave energy.
  • Next surfable swell (1★+): Thursday 2 Jul, 2AM (local time) - 10ft (3.0m), 9s 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 Thursday (Jul 02) at 2AM. The primary swell is predicted to be 3.0m and 9s period with a secondary swell of 0.7m and 16s. Another secondary swell of 0.3m and 19s 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 9s and forecast to arrive on Wednesday (Jul 01) at 8PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 6s period and expected on Wednesday (Jul 08) at 5AM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Thu 2nd Jul)10ft (3.0m) 9s
Best Surf 2AM (Thu 2nd Jul)10ft (3.0m) 9s
Most Powerful 8PM (Wed 1st Jul)11ft (3.5m) 9s

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 10°C on Wed morning). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Very mild (max 13°C on Sat morning, min 9°C on Mon night). Wind will be generally light.

Wednesday
1
Thursday
2
Friday
3
Saturday
4
Sunday
5
Monday
6
Tuesday
7
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
2
4
1
1
3
1
1
3
2
1
3
1
2
3
1
1
3
1
0
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
3
NW
10
3.5
NW
10
3
NW
9
2.3
NW
9
2.4
NW
8
2.1
NW
8
1.8
NW
8
2
NW
7
1.9
NW
7
1.9
NW
8
2.1
NW
8
2.1
NW
8
1.8
NW
8
0.8
SSW
18
2.1
NW
8
1.8
NW
8
0.8
SSW
16
0.8
SSW
20
1.5
NW
11
0.9
SSW
18
1
SSW
18
Wave Graph
Metric surfscale
Energy kJ
1891
1962
1370
846
802
553
383
421
361
424
528
565
457
395
502
345
330
485
515
531
651
Wind (km/h)
15
NW
15
NW
10
NNW
10
WNW
20
NW
10
NNW
15
NW
20
NW
5
NNW
10
WNW
10
WNW
0
E
15
SW
10
WNW
5
NW
15
NW
20
NW
5
NNW
20
NW
25
NW
15
NNW
Wind State
cross
cross
cross-off
cross-on
cross
cross-off
cross
cross
cross-off
cross
cross-on
glassy
on
cross
glassy
cross
cross
cross-off
cross
cross
cross-off
High Tide
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
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
00:24AM0.40m
part cloud
clear
part cloud
part cloud
part cloud
clear
clear
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
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
8:44
8:44
 mm
Temp °C
13
14
12
12
13
12
13
13
13
13
13
11
12
12
11
12
12
11
12
14
13
Feels °C
10
11
9
11
10
10
11
10
12
11
11
10
10
10
9
9
8
8
8
9
9
Swell 1
Height (m)
Direction
Period (s)
3
NW
10
0.7
SSW
16
0.7
SW
16
2.3
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
2.1
NW
8
2.1
NW
8
1.8
NW
8
1.7
NW
8
1.8
NW
8
0.8
WNW
12
0.9
WNW
12
0.9
WNW
11
0.8
SSW
20
0.9
SSW
18
1
SSW
18
Energy kJ
1559
232
264
846
232
174
383
209
288
129
528
565
457
371
393
180
239
207
485
531
651
Swell 2
Height (m)
Direction
Period (s)
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
0.8
SSW
14
0.7
WNW
12
0.8
SSW
18
0.8
WNW
13
0.7
SSW
17
0.8
SSW
16
0.8
SSW
20
0.7
SW
16
0.6
SSW
14
0.7
SSW
15
Energy kJ
270
45
73
169
65
246
140
42
74
71
183
239
138
395
209
246
330
485
255
138
188
Swell 3
Height (m)
Direction
Period (s)
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
0.6
WNW
13
0.6
SSW
18
0.6
SSW
21
0.5
SSW
21
0.7
SSW
16
0.3
SSW
12
0.1
S
8
0.6
WNW
10
Energy kJ
44
44
17
125
26
22
56
9
89
84
216
86
216
118
207
305
260
226
29
1
67
Wind waves
Height (m)
Direction
Period (s)
3
NW
10
3.5
NW
10
3
NW
9
2.4
NW
8
2.1
NW
8
2
NW
7
1.9
NW
7
1.9
NW
8
2.1
NW
8
1.8
NW
8
1.8
NW
7
1.6
NW
6
1.5
NW
11
1.9
NW
6
1.6
NW
6
Energy kJ
1891
1962
1370
802
553
421
361
424
502
345
325
194
515
284
193
Nearest Offshore or Glassy
Rating
(10 max)
4
2
4
3
3
3
1
2
3
2
3
3
3
3
3
1
2
3
3
2
3
Distance (km)
85
160
0
155
82
0
202
82
0
617
23
0
85
82
0
277
304
0
183
303
0
Best forecast wave conditions in Mendocino County
Rating
(10 max)
4
3
3
3
3
3
4
3
Best forecast wave conditions in United States
Rating
(10 max)
4
3
4
3
3
3
2
2
3
2
3
4
3
3
3
2
2
4
3
3
4
Header Global
Rating
(10 max)
5
9
7
5
7
6
6
5
4
5
5
9
7
5
5
9
9
7
7
8
7
  • 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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