Big River Surf Break

Lat Long: 39.30° N 123.80° W

Issued: 10 pm 25 Jun 2026 (local time)

Forecast update in  hr  min

Today's Big River sea temperature is
13.0° 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 26 Jun 2026:

  • Best quality surf: Tuesday 30 Jun, 8AM (local time) - 11ft (3.5m), 10s period, NW swell with cross-offshore winds.
  • Most powerful swell: Tuesday 30 Jun, 8PM (local time) - 11ft (3.5m), 10s period, NW swell with 2,561 kJ wave energy.
  • Next surfable swell (1★+): Friday 26 Jun, 8AM (local time) - 2.5ft (0.8m), 15s 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 Friday (Jun 26) at 8AM. The primary swell is predicted to be 0.6m and 19s period with a secondary swell of 0.8m and 5s. 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 3.5m 10s and forecast to arrive on Tuesday (Jun 30) 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 0.5m 6s period and expected on Friday (Jun 26) at 11AM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Fri 26th Jun)2.5ft (0.8m) 15s
Best Surf 8AM (Tue 30th Jun)11ft (3.5m) 10s
Most Powerful 8PM (Tue 30th Jun)11ft (3.5m) 10s

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 Fri morning, min 9°C on Sat night). Winds increasing (calm on Fri morning, strong winds from the NW by Sat night).

Days 5-7 Weather Summary

Mostly dry. Very mild (max 14°C on Mon morning, min 10°C on Sun night). Winds decreasing (fresh winds from the NNW on Sun night, light winds from the NNW by Wed morning).

Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
1
Thu
2
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Rating
(10 max)
2
1
1
1
0
0
1
1
0
3
2
3
3
3
2
3
2
1
4
2
1
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
SSW
15
0.7
SSW
19
0.9
SSW
14
1
SSW
17
1.7
NW
10
2.5
NW
7
2.5
NW
8
2.3
NW
9
3.5
NW
9
3
NW
9
3
NW
9
3
NW
9
3
NW
9
3.5
NW
10
3.5
NW
10
3
NW
10
3.5
NW
10
3.5
NW
9
2.5
NW
9
2.2
NW
8
2.2
NW
8
Wave Graph
Metric surfscale
Energy kJ
417
329
330
629
535
625
783
787
1898
1182
1156
1373
1299
2274
2457
1891
2007
2133
1046
681
589
Wind (km/h)
10
NNW
10
NW
15
NW
20
NW
30
NW
40
NW
25
NNW
20
NW
40
NW
15
NNW
20
NW
25
NW
15
N
20
NW
25
NW
15
NNW
20
NW
25
NW
15
NNW
10
WNW
20
NW
Wind State
cross-off
cross
cross
cross
cross
cross
cross-off
cross
cross
cross-off
cross
cross-off
cross-off
cross
cross-off
cross-off
cross
cross
cross-off
cross
cross
High Tide
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
1:37PM1.25m
11:45PM1.81m
2:11PM1.28m
00:22AM1.77m
2:44PM1.31m
Low Tide
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
6:32AM-0.22m
5:42PM0.90m
7:06AM-0.21m
6:24PM0.89m
7:39AM-0.19m
7:09PM0.88m
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:50
5:50
5:50
5:50
5:50
5:52
5:52
<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
8:45
 mm
Temp °C
12
14
14
14
14
14
13
12
14
13
14
13
13
14
14
13
14
13
12
13
14
Feels °C
9
13
13
13
8
7
5
8
6
6
10
8
10
11
9
8
10
8
8
11
11
Swell 1
Height (m)
Direction
Period (s)
1
SSW
15
0.8
SSW
14
0.9
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
0.7
SSW
15
0.6
SSW
20
3
NW
10
0.6
SSW
18
0.7
SW
18
0.7
SSW
18
0.7
SSW
16
0.7
SW
16
0.6
SW
16
0.7
SW
15
Energy kJ
417
239
330
629
390
464
397
322
288
193
188
193
253
1947
214
319
270
232
264
203
232
Swell 2
Height (m)
Direction
Period (s)
0.3
WNW
10
0.7
WNW
5
0.7
WNW
5
0.1
S
10
0.5
SSW
14
0.1
S
19
0.2
S
18
0.2
S
18
0.2
S
16
0.2
S
11
0.4
SW
21
0.2
SSW
21
0.6
SSW
15
0.4
SSW
14
0.4
SSW
14
0.4
SW
14
0.2
SSW
21
0.3
SSW
13
0.3
SSW
19
0.4
SSW
19
0.3
SSW
18
Energy kJ
20
27
29
2
104
7
25
25
20
10
117
45
150
81
78
52
44
34
73
125
65
Swell 3
Height (m)
Direction
Period (s)
0.1
S
11
0.7
SSW
19
0.6
SSW
19
0.2
WNW
13
0.1
S
10
0.1
S
10
0.1
S
24
0.1
SW
24
0.2
S
16
0.3
WNW
12
0.2
S
11
0.1
S
10
0.4
SW
20
0.1
S
10
0.1
S
10
0.1
W
18
0.2
SSW
21
0.4
SW
13
0.2
S
12
0.2
WNW
16
Energy kJ
2
329
246
17
2
2
11
22
20
29
10
2
97
2
2
6
44
44
11
26
Wind waves
Height (m)
Direction
Period (s)
1.6
NW
6
0.5
NNW
6
1.3
WNW
8
1.7
NW
10
2.5
NW
7
2.5
NW
8
2.3
NW
9
3.5
NW
9
3
NW
9
3
NW
9
3
NW
9
3
NW
9
3.5
NW
10
3.5
NW
10
3
NW
10
3.5
NW
10
3.5
NW
9
2.5
NW
9
2.2
NW
8
2.2
NW
8
Energy kJ
182
19
198
535
625
783
787
1898
1182
1156
1373
1299
2274
2457
1891
2007
2133
1046
681
589
Nearest Offshore or Glassy
Rating
(10 max)
2
1
2
3
3
3
4
4
2
4
2
4
4
3
2
4
2
1
4
2
2
Distance (km)
0
170
251
82
340
340
59
183
669
29
160
304
39
155
648
59
304
669
0
304
626
Best forecast wave conditions in Mendocino County
Rating
(10 max)
3
4
4
4
4
4
Best forecast wave conditions in United States
Rating
(10 max)
3
2
3
3
3
3
4
4
2
4
3
4
4
4
2
4
2
1
4
2
2
Header Global
Rating
(10 max)
7
5
5
6
9
7
6
5
7
7
7
7
5
5
5
5
5
4
5
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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