Big River Surf Break

Lat Long: 39.30° N 123.80° W

Issued: 10 pm 17 Jun 2026 (local time)

Forecast update in  hr  min

Today's Big River sea temperature is
11.5° C

1.0°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 18 Jun 2026:

  • Best quality surf: Thursday 18 Jun, 5AM (local time) - 3.5ft (1.1m), 17s period, SW swell with glassy winds.
  • Most powerful swell: Wednesday 24 Jun, 5PM (local time) - 4ft (1.2m), 17s period, SSW swell with 813 kJ wave energy.
  • Next surfable swell (1★+): Thursday 18 Jun, 5AM (local time) - 3.5ft (1.1m), 17s period with SW 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 (Jun 18) at 5AM. The primary swell is predicted to be 1.1m and 17s period with a secondary swell of 1.6m and 10s. 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 1.2m 17s and forecast to arrive on Wednesday (Jun 24) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Thu 18th Jun)3.5ft (1.1m) 17s
Best Surf 5AM (Thu 18th Jun)3.5ft (1.1m) 17s
Most Powerful 5PM (Wed 24th Jun)4ft (1.2m) 17s

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 Thu morning, min 11°C on Wed night). Wind will be generally light.

Days 5-7 Weather Summary

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

Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wed
24
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
2
1
3
1
1
3
1
1
3
2
2
3
1
1
3
0
2
3
2
2
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)
1.1
SW
17
1.1
SW
16
1.7
NW
10
1
SW
16
1
SW
15
1
SW
15
0.9
SSW
14
0.9
SSW
14
1.2
SSW
16
1.1
SSW
16
1.9
NW
9
2.1
NW
9
2.1
NW
8
1.6
NW
8
1.5
NW
8
0.8
SSW
16
1.3
NW
8
0.8
SSW
16
1.4
NW
9
0.9
SSW
18
1.2
SSW
17
Wave Graph
Metric surfscale
Energy kJ
772
602
580
489
447
424
362
357
666
620
548
671
611
375
306
330
239
306
344
448
813
Wind (km/h)
5
SSE
15
SW
15
SW
5
E
15
WSW
10
SW
5
E
15
W
20
NW
10
NNW
15
NW
15
NW
5
NNW
10
WSW
5
W
5
S
10
WSW
5
WSW
0
S
10
W
5
WNW
Wind State
glassy
on
on
cross-off
on
on
cross-off
cross-on
cross
cross-off
cross
cross
cross-off
on
cross-on
glassy
on
cross-on
glassy
cross-on
cross-on
High Tide
1:22AM1.96m
3:39PM1.44m
2:19AM1.76m
4:27PM1.50m
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
Low Tide
8:37AM-0.43m
8:29PM0.75m
9:25AM-0.27m
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
part cloud
part cloud
part cloud
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
<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
5:48
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:44
8:44
8:44
8:44
8:45
8:45
8:45
8:45
 mm
Temp °C
11
13
13
12
13
13
13
12
12
11
12
14
12
13
13
11
12
12
11
13
13
Feels °C
10
11
11
11
11
10
13
11
9
9
9
11
11
11
11
10
11
10
11
12
11
Swell 1
Height (m)
Direction
Period (s)
1.6
NW
10
1.7
NW
10
1.7
NW
10
1.5
NW
9
1.4
NW
9
1.4
NW
9
1.3
NW
9
1.2
NW
10
1.2
SSW
16
1.6
NW
8
1.9
NW
9
2.1
NW
9
2.1
NW
8
1.6
NW
8
1.5
NW
8
1.3
NW
8
1.3
NW
8
1.3
NW
8
1.4
NW
9
1.4
NW
9
1.4
NW
9
Energy kJ
507
580
580
390
350
321
284
286
666
316
548
671
611
375
306
244
239
244
268
323
281
Swell 2
Height (m)
Direction
Period (s)
1.1
SW
17
1.1
SW
16
1
SW
16
1
SW
16
1
SW
15
1
SW
15
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
0.7
SSW
18
0.9
SSW
18
1.2
SSW
17
Energy kJ
772
602
502
489
447
424
362
357
40
620
419
362
330
264
161
330
154
306
344
448
813
Swell 3
Height (m)
Direction
Period (s)
0.8
S
14
0.7
S
13
0.7
S
13
0.7
S
13
0.6
S
12
0.6
SSW
18
0.7
SSW
18
0.5
SSW
17
0.3
WNW
10
0.8
NNW
10
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
15
0.8
SSW
14
0.2
SSE
12
Energy kJ
257
170
165
162
109
251
273
170
20
105
149
148
280
209
174
154
173
298
188
268
13
Wind waves
Height (m)
Direction
Period (s)
0.5
S
4
1.4
NW
10
0.2
SSE
9
Energy kJ
7
341
8
Nearest Offshore or Glassy
Rating
(10 max)
4
3
3
3
3
3
3
2
1
3
2
3
3
3
2
3
2
1
3
3
4
Distance (km)
0
85
57
0
57
23
0
202
340
0
202
59
0
82
82
0
57
7
0
57
19
Best forecast wave conditions in Mendocino County
Rating
(10 max)
4
3
3
3
4
3
4
3
3
3
4
Best forecast wave conditions in United States
Rating
(10 max)
4
4
4
4
4
3
3
3
2
4
2
3
4
3
2
3
3
3
3
3
4
Header Global
Rating
(10 max)
5
9
5
6
7
4
9
5
9
4
7
7
5
6
5
6
5
7
9
8
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
How to use the Wavefinder
submit an eyeball surf report

Quick surf report for Big River:

join our community of surf reporters

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Big River surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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.

Nearest locationNearest