Big River Surf Break

Lat Long: 39.30° N 123.80° W

Issued: 10 pm 19 Jun 2026 (local time)

Forecast update in  hr  min

Today's Big River sea temperature is
12.2° 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 20 Jun 2026:

  • Best quality surf: Sunday 21 Jun, 8AM (local time) - 6.5ft (2.0m), 8s period, NW swell with cross-offshore winds.
  • Most powerful swell: Monday 22 Jun, 2AM (local time) - 8ft (2.4m), 8s period, NW swell with 771 kJ wave energy.
  • Next surfable swell (1★+): Saturday 20 Jun, 5AM (local time) - 4.5ft (1.4m), 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 Saturday (Jun 20) at 5AM. The primary swell is predicted to be 1.4m and 10s period with a secondary swell of 0.9m and 14s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Big River in the next 16 days are 2.4m 8s and forecast to arrive on Monday (Jun 22) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 6s period and expected on Saturday (Jun 27) at 2AM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Sat 20th Jun)4.5ft (1.4m) 10s
Best Surf 8AM (Sun 21st Jun)6.5ft (2.0m) 8s
Most Powerful 2AM (Mon 22nd Jun)8ft (2.4m) 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 14°C on Mon afternoon, min 10°C on Sat night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Very mild (max 14°C on Wed morning, min 10°C on Wed night). Wind will be generally light.

Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Fri
26
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
1
3
2
1
4
2
2
2
0
2
3
2
2
3
1
1
2
2
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)
1.3
NW
10
1.3
NNW
10
1.2
SSW
16
1.1
SSW
16
2
NW
9
2.1
NW
9
2.4
NW
8
1.7
NW
9
1.6
NW
9
1.6
NW
8
1.4
NW
8
0.8
SSW
16
0.7
SSW
18
0.9
SSW
18
1.1
SSW
17
2.1
NW
8
2
NW
8
1.1
SSW
16
2.2
NW
7
0.7
SSW
19
2.1
NW
7
Wave Graph
Metric surfscale
Energy kJ
362
357
666
620
598
671
771
418
384
367
273
306
344
448
689
560
545
594
507
329
360
Wind (km/h)
5
ENE
15
WNW
20
NW
5
NNW
10
WNW
15
NW
5
NNW
10
WSW
10
WNW
5
S
15
SW
10
SW
0
ESE
10
WSW
5
W
15
NNW
15
NW
20
NW
15
NNW
20
NW
30
NW
Wind State
glassy
cross-on
cross
glassy
cross
cross
cross-off
cross-on
cross
cross-on
on
on
glassy
cross-on
cross-on
cross-off
cross
cross
cross-off
cross-off
cross
High Tide
3:21AM1.54m
5:15PM1.56m
4:33AM1.32m
6:00PM1.62m
5:56AM1.14m
6:43PM1.67m
7:28AM1.04m
7:24PM1.71m
8:57AM1.03m
8:02PM1.74m
10:11AM1.07m
8:40PM1.76m
11:08AM1.12m
Low Tide
9:43PM0.71m
10:12AM-0.07m
11:02PM0.62m
10:58AM0.14m
00:22AM0.49m
11:44AM0.34m
1:34AM0.33m
12:32PM0.53m
2:34AM0.17m
1:20PM0.69m
3:24AM0.04m
2:09PM0.80m
4:07AM-0.06m
2:56PM0.87m
part cloud
part cloud
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
part cloud
clear
part cloud
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
5:48
5:48
5:48
5:50
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:44
8:44
8:45
8:45
8:45
8:45
8:45
8:45
 mm
Temp °C
13
13
13
11
13
13
12
13
14
12
13
13
12
14
14
12
13
13
12
14
15
Feels °C
13
13
10
9
11
10
11
12
13
11
11
11
12
13
13
11
10
9
9
11
9
Swell 1
Height (m)
Direction
Period (s)
1.3
NW
10
1.3
NNW
10
1.2
SSW
16
1.6
NW
8
2
NW
9
2.1
NW
9
2.1
NW
8
1.7
NW
9
1.6
NW
9
1.6
NW
8
1.4
NW
8
1.4
NW
8
1.4
NW
8
1.6
NW
9
1.6
NW
9
0.9
SSW
16
2
NW
8
1.1
SSW
16
1
SSW
15
0.8
SSW
14
0.8
SSW
14
Energy kJ
290
327
666
316
598
671
611
418
384
367
273
273
279
408
399
376
545
561
417
239
239
Swell 2
Height (m)
Direction
Period (s)
0.9
SSW
14
0.9
SSW
14
0.4
S
11
1.1
SSW
16
0.9
SSW
16
0.9
SSW
14
0.9
SSW
14
0.8
SSW
14
0.7
SSW
14
0.8
SSW
16
0.7
SSW
13
0.8
SSW
16
0.8
SSW
15
0.9
SSW
18
1.1
SSW
17
0.5
SSW
13
1
SSW
16
0.2
SSW
21
0.1
S
11
0.7
SSW
19
0.6
SSW
19
Energy kJ
362
357
40
620
419
362
330
264
161
330
154
306
272
448
689
98
487
44
2
329
246
Swell 3
Height (m)
Direction
Period (s)
0.7
SSW
18
0.5
SSW
17
0.3
WNW
10
0.7
NNW
9
0.4
SSW
20
0.4
SSW
19
0.7
SSW
18
0.6
SSW
18
0.5
SSW
18
0.7
SSW
13
0.6
SSW
16
0.6
SSW
20
0.7
SSW
18
0.8
SSW
14
0.2
SSE
12
0.2
SSE
11
0.2
SSE
11
0.1
S
11
0.1
W
16
0.1
S
11
0.1
NW
15
Energy kJ
273
170
19
76
149
148
280
209
174
154
173
298
344
268
13
13
12
2
5
2
8
Wind waves
Height (m)
Direction
Period (s)
1.4
NW
10
2.4
NW
8
2.1
NW
8
2.2
NW
8
2.2
NW
7
1.8
NW
7
2.1
NW
7
Energy kJ
341
771
560
594
507
267
360
Nearest Offshore or Glassy
Rating
(10 max)
3
2
2
3
2
3
4
1
3
3
2
3
3
3
4
3
2
1
3
3
1
Distance (km)
0
202
944
0
202
59
0
202
82
13
36
19
0
85
19
0
160
648
29
129
277
Best forecast wave conditions in Mendocino County
Rating
(10 max)
3
4
3
4
3
2
3
3
4
4
3
Best forecast wave conditions in United States
Rating
(10 max)
3
3
2
4
2
3
4
3
3
3
3
3
3
3
4
4
2
2
3
3
2
Header Global
Rating
(10 max)
5
8
9
6
4
7
6
6
5
5
5
7
8
6
5
5
5
5
5
5
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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