Big River Surf Break

Lat Long: 39.30° N 123.80° W

Big River Surf Forecast and Surf Report

Issued: 4 pm 01 Aug 2026 (local time)

Forecast update in  hr  min

Today's Big River sea temperature is
12.9° C
1.1° 

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 2 Aug 2026:

  • Best quality surf: Sunday 2 Aug, 5AM (local time) - 10ft (3.0m), 9s period, NW swell with cross-offshore winds.
  • Most powerful swell: Sunday 2 Aug, 8PM (local time) - 13ft (4.0m), 10s period, NW swell with 2,684 kJ wave energy.
  • Next surfable swell (1★+): Sunday 2 Aug, 5AM (local time) - 10ft (3.0m), 9s 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 Sunday (Aug 02) at 5AM. The primary swell is predicted to be 3.0m and 9s period with a secondary swell of 0.5m and 14s. Another secondary swell of 0.5m and 12s 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 10s and forecast to arrive on Sunday (Aug 02) 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 (Sun 2nd Aug)10ft (3.0m) 9s
Best Surf 5AM (Sun 2nd Aug)10ft (3.0m) 9s
Most Powerful 8PM (Sun 2nd Aug)13ft (4.0m) 10s

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


Short Range Forecast

Mostly dry. Very mild (max 16°C on Sat afternoon, min 11°C on Sat night). Winds decreasing (fresh winds from the NNW on Sat afternoon, calm by Mon night).

Days 5-7 Weather Summary

Mostly dry. Very mild (max 16°C on Tue afternoon, min 12°C on Tue night). Wind will be generally light.

Sat
1
Sunday
2
Monday
3
Tuesday
4
Wednesday
5
Thursday
6
Friday
7
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
3
3
3
4
3
2
3
1
2
2
0
1
2
1
1
2
1
1
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
3
NW
8
3
NW
8
3
NW
9
4
NW
9
3.5
NW
10
2.5
NW
10
2.4
NW
10
2.3
NW
10
2.1
NW
9
1.8
NW
9
1.8
NW
9
1.6
NW
9
1.5
NW
8
1.3
NW
8
1.2
NW
8
1.2
NW
8
1.1
NW
8
1.1
NW
8
1.2
NW
8
1.6
NW
7
Wave Graph
Metric surfscale
Energy kJ
1001
1220
1475
2338
2046
1363
1026
1013
669
513
475
367
313
250
196
196
149
145
203
269
Wind (km/h)
30
NNW
20
NNW
20
NW
25
NNW
10
N
10
WNW
5
W
5
NNW
15
SSW
5
W
5
SSE
15
SW
5
SW
0
N
10
WSW
10
NW
0
SE
10
WNW
15
NW
5
NNW
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross-on
glassy
on
glassy
glassy
on
on
glassy
cross-on
cross
glassy
cross
cross
cross-off
High Tide
2:17PM1.52m
1:32AM1.59m
2:46PM1.58m
2:22AM1.44m
3:17PM1.65m
3:23AM1.27m
3:53PM1.71m
4:42AM1.13m
4:36PM1.77m
6:21AM1.05m
5:27PM1.83m
8:05AM1.07m
6:28PM1.90m
Low Tide
7:42PM0.66m
8:04AM0.12m
8:35PM0.58m
8:34AM0.27m
9:34PM0.49m
9:07AM0.43m
10:41PM0.38m
9:45AM0.60m
11:55PM0.24m
10:33AM0.76m
1:08AM0.09m
11:38AM0.87m
2:15AM-0.07m
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:15
6:16
6:16
6:18
6:18
6:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:27
8:25
8:24
8:23
8:22
8:22
8:20
 mm
Temp °C
16
16
15
16
15
16
16
15
15
16
14
14
15
14
14
15
13
15
15
13
Feels °C
12
12
11
12
12
15
15
15
13
15
14
11
14
15
13
14
13
13
13
13
  • 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
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for Big River:

join our community of surf reporters

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Big River surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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.

Nearest locationNearest