Big River Surf Break

Lat Long: 39.30° N 123.80° W

Big River Surf Forecast and Surf Report

Issued: 10 pm 26 Oct 2026 (local time)

Forecast update in  hr  min

Today's Big River sea temperature is
16.2°C
2.7° 

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 27 Oct 2026:

  • Best quality surf: Monday 2 Nov, 7AM (local time) - 7ft (2.2m), 19s period, WNW swell with cross-offshore winds.
  • Most powerful swell: Monday 2 Nov, 4PM (local time) - 8ft (2.5m), 17s period, WNW swell with 3,621 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 27 Oct, 8AM (local time) - 2.5ft (0.7m), 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 Tuesday (Oct 27) at 8AM. The primary swell is predicted to be 0.7m and 17s period with a secondary swell of 0.5m and 11s. Another secondary swell of 1.3m and 9s 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 2.5m 17s and forecast to arrive on Monday (Nov 02) at 4PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 6s period and expected on Friday (Oct 30) at 2AM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Tue 27th Oct)2.5ft (0.7m) 17s
Best Surf 7AM (Mon 2nd Nov)7ft (2.2m) 19s
Most Powerful 4PM (Mon 2nd Nov)8ft (2.5m) 17s

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


Short Range Forecast

Mostly dry. Very mild (max 14°C on Tue afternoon, min 9°C on Tue night). Winds decreasing (strong winds from the NW on Tue afternoon, light winds from the NNE by Thu morning).

Days 5-7 Weather Summary

Mostly dry. Very mild (max 13°C on Fri afternoon, min 8°C on Sat night). Wind will be generally light.

Tuesday
27
Wednesday
28
Thursday
29
Friday
30
Saturday
31
Sunday
1
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
2
0
3
4
2
3
3
3
3
3
2
3
3
3
3
3
3
4
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.6
NW
9
0.7
SW
18
2.3
NW
6
0.9
SSW
17
1.2
WNW
15
1.2
WNW
14
1
SSW
16
1
SSW
15
1.2
SSW
15
1.1
SSW
15
1.1
SSW
16
1.1
SSW
16
1.1
SSW
15
1.1
SSW
14
1.1
SSW
14
1.1
SSW
15
1.3
SSW
16
1.2
SSW
16
1.6
WNW
20
Wave Graph
Metric surfscale
Energy kJ
423
312
413
510
576
553
532
474
584
566
612
604
530
515
508
522
859
724
1958
Wind (km/h)
15
NNW
20
NNW
40
NW
10
NNE
10
NNW
25
NNW
5
NNE
5
NNW
15
NW
5
NNE
10
NNW
20
NNW
5
NNE
5
NNW
15
NNW
10
NE
15
NNW
20
NNW
10
ENE
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
glassy
glassy
cross-off
off
cross-off
cross-off
off
High Tide
00:48AM1.46m
11:46AM2.06m
1:45AM1.42m
12:27PM2.07m
2:47AM1.38m
1:14PM2.02m
3:55AM1.35m
2:08PM1.93m
5:05AM1.36m
3:12PM1.80m
6:11AM1.41m
4:28PM1.66m
Low Tide
5:37AM0.71m
6:55PM-0.31m
6:19AM0.81m
7:46PM-0.33m
7:05AM0.90m
8:42PM-0.29m
8:02AM0.96m
9:43PM-0.22m
9:15AM1.00m
10:47PM-0.13m
10:45AM0.98m
11:51PM-0.03m
clear
clear
clear
clear
clear
clear
part cloud
part cloud
cloud
clear
clear
part cloud
part cloud
cloud
part cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
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7:37
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7:37
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7:39
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7:39
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7:41
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—
6:41
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<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
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—
6:20
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6:19
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6:16
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6:15
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6:15
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5:14
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 mm
—
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—
—
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—
—
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—
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Temp °C
13
13
14
13
12
13
12
13
14
12
12
13
11
11
12
11
12
13
12
Feels °C
9
8
8
6
8
8
8
10
11
10
9
8
8
9
8
8
8
8
9
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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