Big River Surf Break

Lat Long: 39.30° N 123.80° W

Issued: 10 pm 23 Jun 2026 (local time)

Forecast update in  hr  min

Today's Big River sea temperature is
12.6° 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 24 Jun 2026:

  • Best quality surf: Monday 29 Jun, 2AM (local time) - 10ft (3.0m), 9s period, NW swell with cross-offshore winds.
  • Most powerful swell: Tuesday 30 Jun, 8PM (local time) - 13ft (4.0m), 9s period, NW swell with 2,805 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 24 Jun, 5AM (local time) - 3ft (0.9m), 18s 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 Wednesday (Jun 24) at 5AM. The primary swell is predicted to be 0.9m and 18s period with a secondary swell of 1.1m and 7s. 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 Tuesday (Jun 30) at 8PM. 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 (Wed 24th Jun)3ft (0.9m) 18s
Best Surf 2AM (Mon 29th Jun)10ft (3.0m) 9s
Most Powerful 8PM (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 11°C on Tue night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Very mild (max 14°C on Sat morning, min 9°C on Sat night). Mainly strong winds.

Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tue
30
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
2
3
1
0
3
1
0
1
0
0
2
2
1
4
3
2
3
2
3
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)
0.7
SSW
18
0.9
SSW
18
1.1
SSW
17
2.1
NW
8
1
SSW
16
2.3
NW
7
1
SSW
15
0.7
SSW
19
0.6
SSW
19
1
SSW
17
1.7
NW
10
3
NW
7
2.5
NW
8
2.5
NW
9
3.5
NW
9
3
NW
9
3
NW
9
3.5
NW
9
3
NW
9
3.5
NW
10
4
NW
9
Wave Graph
Metric surfscale
Energy kJ
344
448
689
499
487
524
417
329
246
629
524
799
844
1089
2066
1306
1236
1756
1645
1876
2573
Wind (km/h)
5
NW
10
SW
10
WNW
15
NNW
25
NW
30
NW
15
NNW
15
NW
15
NW
15
NW
30
NW
40
NW
20
N
20
NW
35
NW
10
N
15
NW
15
NW
15
NNW
20
NW
25
NW
Wind State
glassy
on
cross
cross-off
cross
cross
cross-off
cross
cross
cross
cross
cross
cross-off
cross
cross-off
cross-off
cross
cross
cross-off
cross
cross-off
High Tide
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
1:37PM1.25m
Low Tide
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
6:32AM-0.22m
5:42PM0.90m
clear
part cloud
part cloud
clear
clear
part cloud
clear
part cloud
part cloud
part cloud
part cloud
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
5:48
5:50
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
8:45
 mm
Temp °C
11
13
13
12
14
14
13
14
15
13
14
14
13
13
13
13
14
14
13
14
14
Feels °C
10
11
12
11
10
10
9
12
13
12
8
6
5
9
7
7
11
11
11
11
10
Swell 1
Height (m)
Direction
Period (s)
1.1
NW
7
1.1
NW
7
1.3
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
0.7
SSW
15
0.6
SSW
20
0.4
SSW
14
0.6
SSW
18
Energy kJ
116
109
147
376
487
469
417
239
239
629
390
464
397
322
288
193
188
193
253
81
214
Swell 2
Height (m)
Direction
Period (s)
0.8
SSW
15
0.9
SSW
18
1.1
SSW
17
0.5
SSW
13
0.3
WNW
11
0.2
SSW
21
0.1
S
11
0.7
SSW
19
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
WNW
13
0.4
SW
21
0.2
SSW
21
0.5
SSW
15
0.4
SW
20
0.4
SSW
14
Energy kJ
272
448
689
99
22
44
2
329
246
32
104
7
25
25
20
17
117
45
128
97
78
Swell 3
Height (m)
Direction
Period (s)
0.7
SSW
18
0.8
SSW
14
0.2
WNW
11
0.2
SSE
11
0.1
S
11
0.1
S
11
0.3
WNW
10
0.3
WNW
9
0.1
S
11
0.2
WNW
13
0.1
S
10
0.1
S
24
0.1
SW
24
0.2
S
11
0.1
SW
18
0.2
S
11
0.1
S
11
0.1
S
10
Energy kJ
344
268
13
13
2
2
19
17
2
17
2
11
22
10
12
9
2
2
Wind waves
Height (m)
Direction
Period (s)
2.1
NW
8
2
NW
7
2.3
NW
7
1.9
NW
6
1
NW
5
0.9
WNW
5
1.2
NW
6
1.7
NW
10
3
NW
7
2.5
NW
8
2.5
NW
9
3.5
NW
9
3
NW
9
3
NW
9
3.5
NW
9
3
NW
9
3.5
NW
10
4
NW
9
Energy kJ
499
389
524
284
51
37
88
524
799
844
1089
2066
1306
1236
1756
1645
1876
2573
Nearest Offshore or Glassy
Rating
(10 max)
3
3
3
3
2
1
3
2
2
3
2
3
4
4
2
4
2
2
4
1
2
Distance (km)
0
57
59
0
183
277
0
151
251
82
277
340
29
183
629
0
202
304
29
944
304
Best forecast wave conditions in Mendocino County
Rating
(10 max)
3
3
3
3
4
4
4
Best forecast wave conditions in United States
Rating
(10 max)
3
3
3
3
3
2
4
3
3
3
3
3
4
4
2
4
4
2
4
2
2
Header Global
Rating
(10 max)
9
8
5
5
5
5
5
5
5
5
4
9
7
5
9
9
9
8
7
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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