Big River Surf Break

Lat Long: 39.30° N 123.80° W

Big River Surf Forecast and Surf Report

Issued: 10 am 01 Oct 2026 (local time)

Forecast update in  hr  min

Today's Big River sea temperature is
13.2°C
1.2° 

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 1 Oct 2026:

  • Best quality surf: Thursday 8 Oct, 5PM (local time) - 5.5ft (1.7m), 13s period, NW swell with cross-offshore winds.
  • Most powerful swell: Thursday 8 Oct, 11AM (local time) - 5.5ft (1.7m), 14s period, NW swell with 1,130 kJ wave energy.
  • Next surfable swell (1★+): Thursday 1 Oct, 8PM (local time) - 6ft (1.8m), 11s 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 Thursday (Oct 01) at 8PM. The primary swell is predicted to be 1.8m and 11s period with a secondary swell of 0.6m and 17s. 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 1.7m 14s and forecast to arrive on Thursday (Oct 08) at 11AM. Winds are predicted to be cross-shore at the time the swell arrives.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Thu 1st Oct)6ft (1.8m) 11s
Best Surf 5PM (Thu 8th Oct)5.5ft (1.7m) 13s
Most Powerful11AM (Thu 8th Oct)5.5ft (1.7m) 14s

Table - best surf conditions forecast for Big River over the next 16 days.


Short Range Forecast

Mostly dry. Warm (max 20°C on Sat morning, min 13°C on Thu morning). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 21°C on Sun morning, min 14°C on Mon night). Wind will be generally light.

Thursday
1
Friday
2
Saturday
3
Sunday
4
Monday
5
Tuesday
6
Wednesday
7
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
2
2
2
2
2
1
2
2
1
2
2
1
1
2
1
1
3
2
3
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.1
NW
11
1.8
NW
11
1.6
NW
8
1.8
NW
9
1.6
NW
8
1.8
NW
8
1.6
NW
9
1.4
NW
8
0.8
SW
15
0.7
SW
16
0.7
SW
16
0.8
SSW
14
0.8
SSW
14
0.8
SSW
14
1.6
NW
8
1.4
NW
8
1
WNW
11
1.7
NW
8
0.7
SSW
19
0.7
SW
18
0.9
SSW
18
Wave Graph
Metric surfscale
Energy kJ
936
712
299
475
349
373
354
266
269
255
248
264
268
264
300
247
218
373
315
323
541
Wind (km/h)
10
W
10
NW
5
N
10
NW
10
NW
5
N
10
WNW
5
NNW
5
NE
5
WNW
5
NNW
5
NNW
15
WNW
15
NW
10
N
10
NW
10
NW
5
N
10
WNW
5
NNW
5
NE
Wind State
cross-on
cross
glassy
cross
cross-off
cross-off
cross
cross-off
glassy
cross-on
cross-off
cross-off
cross
cross
cross-off
cross
cross
glassy
cross-on
cross-off
off
High Tide
2:27PM1.88m
5:13AM1.23m
3:26PM1.82m
6:39AM1.25m
4:40PM1.75m
7:46AM1.33m
6:03PM1.70m
8:35AM1.42m
7:23PM1.69m
9:14AM1.52m
8:33PM1.68m
9:48AM1.63m
9:34PM1.66m
Low Tide
8:08AM0.86m
10:00PM-0.07m
9:06AM0.96m
11:11PM-0.05m
10:29AM1.01m
00:24AM-0.03m
12:07PM0.97m
1:29AM-0.03m
1:31PM0.84m
2:24AM-0.00m
2:38PM0.66m
3:11AM0.05m
3:33PM0.47m
3:52AM0.13m
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:09
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7:11
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7:11
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7:13
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7:13
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7:15
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7:16
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<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
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6:58
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6:55
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6:54
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6:52
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6:51
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6:50
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6:47
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 mm
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Temp °C
16
15
15
18
18
17
20
19
19
21
19
18
19
17
15
18
17
17
21
18
20
Feels °C
14
14
15
16
16
15
18
18
17
19
17
16
16
15
14
15
15
16
19
17
17
  • 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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