Big River Surf Break

Lat Long: 39.30° N 123.80° W

Issued: 4 am 23 Jun 2026 (local time)

Forecast update in  hr  min

Today's Big River sea temperature is
12.7° C

Normal 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 23 Jun 2026:

  • Best quality surf: Monday 29 Jun, 5AM (local time) - 10ft (3.0m), 9s period, NW swell with cross-offshore winds.
  • Most powerful swell: Monday 29 Jun, 5PM (local time) - 13ft (4.0m), 9s period, NW swell with 2,703 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 23 Jun, 11PM (local time) - 2.5ft (0.7m), 19s period with SSW 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 Tuesday (Jun 23) at 11PM. The primary swell is predicted to be 0.7m and 19s period with a secondary swell of 1.3m and 7s. Another secondary swell of 0.8m and 15s is also forecast. 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 4.0m 9s and forecast to arrive on Monday (Jun 29) at 5PM. 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+)11PM (Tue 23rd Jun)2.5ft (0.7m) 19s
Best Surf 5AM (Mon 29th Jun)10ft (3.0m) 9s
Most Powerful 5PM (Mon 29th Jun)13ft (4.0m) 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 11°C on Tue morning). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Very mild (max 14°C on Fri morning, min 10°C on Sat night). Winds increasing (light winds from the NNW on Fri morning, strong winds from the NW by Sun afternoon).

Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
2
3
1
2
2
1
0
3
1
1
1
0
0
2
2
0
3
2
2
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.3
NW
8
0.8
SSW
16
0.7
SSW
18
0.9
SSW
18
1.1
SSW
17
2.3
NW
8
1
SSW
16
2.5
NW
7
2.2
NW
7
0.7
SSW
19
0.6
SSW
19
1
SSW
17
1.9
NW
10
2.5
NW
7
2.3
NW
9
2.5
NW
9
3.5
NW
9
3
NW
9
3
NW
9
4
NW
9
3
NW
9
Wave Graph
Metric surfscale
Energy kJ
216
306
344
448
689
622
487
698
436
329
246
629
638
681
808
1137
2231
1306
1681
2703
1615
Wind (km/h)
10
W
10
NW
5
NNW
10
SW
10
WNW
20
NNW
25
NW
25
NW
15
NNW
15
NW
20
NW
20
NW
35
NW
45
NW
20
N
30
NW
45
NW
20
NNW
20
NW
30
NNW
25
NNW
Wind State
cross-on
cross
glassy
on
cross-on
cross-off
cross
cross
cross-off
cross
cross-off
cross
cross
cross
cross-off
cross-off
cross
cross-off
cross
cross-off
cross-off
High Tide
7:24PM1.71m
8:57AM1.03m
8:02PM1.74m
10:11AM1.07m
8:40PM1.76m
11:08AM1.12m
9:18PM1.78m
11:53AM1.17m
9:55PM1.80m
12:31PM1.20m
10:32PM1.82m
1:04PM1.23m
11:09PM1.82m
Low Tide
12:32PM0.53m
2:34AM0.17m
1:20PM0.69m
3:24AM0.04m
2:09PM0.80m
4:07AM-0.06m
2:56PM0.87m
4:46AM-0.14m
3:41PM0.90m
5:23AM-0.19m
4:22PM0.91m
5:58AM-0.21m
5:02PM0.91m
part cloud
part cloud
clear
part cloud
part cloud
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:48
5:48
5:48
5:50
5:50
5:50
5:50
<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
8:45
 mm
Temp °C
12
13
12
13
14
13
13
13
13
14
14
13
14
14
13
13
14
13
14
14
14
Feels °C
10
11
11
11
13
11
9
9
9
12
12
11
7
7
5
7
6
6
10
9
8
Swell 1
Height (m)
Direction
Period (s)
1.3
NW
8
1.2
NW
7
1.2
NW
7
1.2
NW
7
1.6
NW
7
0.9
SSW
16
1
SSW
16
1
SSW
16
1
SSW
15
0.8
SSW
14
0.8
SSW
14
1
SSW
17
0.8
SSW
18
0.9
SSW
17
0.9
SSW
16
0.8
SSW
16
0.8
SSW
16
0.7
SSW
15
0.7
SSW
15
0.6
SSW
15
0.6
SSW
20
Energy kJ
216
156
131
131
260
376
487
469
417
239
239
629
390
464
397
322
288
193
188
146
253
Swell 2
Height (m)
Direction
Period (s)
0.7
SSW
13
0.8
SSW
16
0.8
SSW
15
0.9
SSW
18
1.1
SSW
17
0.5
SSW
13
0.1
S
11
0.2
SSW
21
0.1
S
11
0.7
SSW
19
0.6
SSW
19
0.4
NW
9
0.5
SSW
14
0.1
S
19
0.2
S
18
0.2
S
18
0.2
S
16
0.2
WNW
13
0.4
SW
21
0.2
SSW
21
0.5
SSW
15
Energy kJ
154
306
272
448
689
99
2
44
2
329
246
21
104
7
25
25
20
18
117
45
128
Swell 3
Height (m)
Direction
Period (s)
0.6
SSW
16
0.6
SSW
20
0.7
SSW
18
0.8
SSW
14
0.2
WNW
11
0.2
SSE
11
0.1
S
11
0.3
WNW
10
0.3
NNW
6
0.1
S
11
0.2
WNW
13
0.1
S
10
0.1
S
10
0.1
S
24
0.1
SW
24
0.2
S
16
0.1
SW
18
0.2
S
12
0.1
S
11
Energy kJ
173
298
344
268
13
13
2
19
7
2
17
2
2
11
22
20
12
10
2
Wind waves
Height (m)
Direction
Period (s)
2.3
NW
8
2.1
NW
7
2.5
NW
7
2.2
NW
7
1.1
NW
6
0.7
WNW
5
1.2
WNW
5
1.9
NW
10
2.5
NW
7
2.3
NW
9
2.5
NW
9
3.5
NW
9
3
NW
9
3
NW
9
4
NW
9
3
NW
9
Energy kJ
622
472
698
436
77
27
72
638
681
808
1137
2231
1306
1681
2703
1615
Nearest Offshore or Glassy
Rating
(10 max)
1
3
3
3
2
3
2
2
3
3
2
3
2
1
4
2
1
4
2
4
4
Distance (km)
202
82
0
57
648
59
202
305
0
134
215
82
277
981
29
183
648
59
160
304
59
Best forecast wave conditions in Mendocino County
Rating
(10 max)
3
3
3
4
4
4
Best forecast wave conditions in United States
Rating
(10 max)
3
3
3
3
2
3
2
2
3
3
2
3
3
3
4
4
2
5
2
4
4
Header Global
Rating
(10 max)
5
8
9
8
5
5
5
5
6
5
5
5
5
5
9
8
5
6
6
5
5
  • 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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