Big River Surf Break

Lat Long: 39.30° N 123.80° W

Issued: 10 pm 24 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 25 Jun 2026:

  • Best quality surf: Sunday 28 Jun, 8AM (local time) - 6ft (1.9m), 10s period, NW swell with cross-offshore winds.
  • Most powerful swell: Tuesday 30 Jun, 5PM (local time) - 13ft (4.0m), 9s period, NW swell with 3,023 kJ wave energy.
  • Next surfable swell (1★+): Thursday 25 Jun, 5AM (local time) - 3ft (0.9m), 16s 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 Thursday (Jun 25) at 5AM. The primary swell is predicted to be 0.9m and 16s period with a secondary swell of 0.5m and 13s. Another secondary swell of 1.8m and 7s 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 4.0m 9s and forecast to arrive on Tuesday (Jun 30) 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+) 5AM (Thu 25th Jun)3ft (0.9m) 16s
Best Surf 8AM (Sun 28th Jun)6ft (1.9m) 10s
Most Powerful 5PM (Tue 30th 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 15°C on Fri afternoon, min 10°C on Wed night). Winds increasing (light winds from the WNW on Wed night, fresh winds from the NW by Sat afternoon).

Days 5-7 Weather Summary

Mostly dry. Very mild (max 14°C on Sun afternoon, min 10°C on Sat night). Mainly fresh winds.

Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wed
1
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
2
1
1
2
0
0
3
2
2
3
1
2
3
2
2
3
1
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)
0.9
SSW
16
1
SSW
16
1.1
SSW
16
1
SSW
15
0.7
SSW
19
0.9
SSW
14
1
SSW
17
1.7
NW
10
2.5
NW
7
2.1
WNW
9
2.5
NW
10
3.5
NW
9
3
NW
9
3
NW
9
3.5
NW
9
3
NW
9
3.5
NW
10
4
NW
9
3.5
NW
9
3.5
NW
9
4
NW
9
Wave Graph
Metric surfscale
Energy kJ
376
487
561
417
329
330
629
535
550
676
1235
2030
1437
1271
2066
1575
2042
3023
1881
1769
2503
Wind (km/h)
10
N
20
NW
25
NW
15
NNW
15
NW
15
NW
15
NW
30
NW
35
NW
10
N
20
NW
35
NNW
20
NNW
25
NW
30
NNW
20
NNW
25
NW
35
NNW
20
NNW
25
NW
30
NW
Wind State
cross-off
cross
cross
cross-off
cross
cross
cross
cross
cross
cross-off
cross
cross-off
cross-off
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
High Tide
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
1:37PM1.25m
11:45PM1.81m
2:11PM1.28m
Low Tide
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
6:32AM-0.22m
5:42PM0.90m
7:06AM-0.21m
6:24PM0.89m
part cloud
clear
part cloud
part cloud
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:48
5:50
5:50
5:50
5:50
5:50
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
13
14
15
14
14
14
13
12
14
13
14
13
13
14
14
13
13
13
Feels °C
11
11
10
10
12
13
13
8
7
6
8
8
7
9
7
7
9
8
7
8
7
Swell 1
Height (m)
Direction
Period (s)
0.9
SSW
16
1
SSW
16
1.1
SSW
16
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
0.4
SSW
14
0.6
SSW
18
0.7
SW
18
0.6
SSW
18
0.8
SSW
16
Energy kJ
376
487
561
417
239
330
629
390
464
397
322
288
193
188
193
253
81
214
319
204
334
Swell 2
Height (m)
Direction
Period (s)
0.5
SSW
13
0.3
WNW
11
0.2
SSW
21
0.3
WNW
10
0.7
WNW
5
0.6
SSW
19
0.4
WNW
9
0.5
SSW
14
0.1
S
19
0.2
S
18
0.2
S
18
0.2
S
16
0.2
S
12
0.4
SW
21
0.2
SSW
21
0.5
SSW
15
0.4
SW
20
0.4
SSW
14
0.4
SW
14
0.2
SSW
21
0.2
S
21
Energy kJ
98
23
44
19
28
246
31
104
7
25
25
20
10
117
45
128
97
78
52
44
36
Swell 3
Height (m)
Direction
Period (s)
0.2
WNW
11
0.2
SSE
11
0.1
S
11
0.1
S
11
0.7
SSW
19
0.3
WNW
9
0.1
S
10
0.2
WNW
13
0.1
S
10
0.1
S
10
0.2
S
18
0.1
SW
24
0.2
S
16
0.1
SW
18
0.2
S
11
0.1
S
11
0.1
S
11
0.1
W
18
0.1
NW
18
Energy kJ
12
12
2
2
329
17
2
17
2
2
25
22
20
12
9
2
2
6
12
Wind waves
Height (m)
Direction
Period (s)
1.8
NW
7
1.8
NW
7
2.2
NW
7
1.6
NW
6
0.7
WNW
5
1
WNW
7
1.7
NW
10
2.5
NW
7
2.1
WNW
9
2.5
NW
10
3.5
NW
9
3
NW
9
3
NW
9
3.5
NW
9
3
NW
9
3.5
NW
10
4
NW
9
3.5
NW
9
3.5
NW
9
4
NW
9
Energy kJ
353
353
462
200
29
93
535
550
676
1235
2030
1437
1271
2066
1575
2042
3023
1881
1769
2503
Nearest Offshore or Glassy
Rating
(10 max)
3
1
1
2
2
1
1
2
2
3
4
1
4
2
4
4
2
3
4
1
2
Distance (km)
0
202
277
0
166
277
43
277
277
0
129
305
59
160
304
59
202
304
59
778
846
Best forecast wave conditions in Mendocino County
Rating
(10 max)
4
3
3
3
4
4
4
Best forecast wave conditions in United States
Rating
(10 max)
4
2
2
4
2
3
3
3
3
3
4
1
4
4
4
4
4
3
4
2
2
Header Global
Rating
(10 max)
5
5
5
8
5
6
6
5
7
5
5
9
6
6
6
5
5
7
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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