Big River Surf Break

Lat Long: 39.30° N 123.80° W

Big River 48 hour detailed Surf Forecast

Issued: 10 pm 10 Aug 2026 (local time)

Forecast update in  hr  min

Today's Big River sea temperature is
12.7° C
1.6° 

Big River surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Big River today (11 Aug):

  • Morning surf: Morning surf (11 Aug, local time) - 7ft (2.1m), 9s period with NW swell.
  • Afternoon surf: Afternoon surf (11 Aug, local time) - 7ft (2.1m), 9s period with NW swell.
  • Evening surf: Evening surf (11 Aug, local time) - 10ft (3.0m), 8s period with NW swell.

The current surf forecast for Big River at 7AM is: 2.1m 9s primary swell from a Northwest direction and 0.5m 13s secondary swell from a South-southwest direction (forecast issued at 10:00pm August 10). The wind direction is predicted to be glassy and the swell rating is 3.

Time (PDT) & DateWave HeightWave Period
Morning (11 Aug)7ft (2.1m)9s
Afternoon (11 Aug)7ft (2.1m)9s
Evening (11 Aug)10ft (3.0m)8s

Table - waves today at Big River. (Swell directed towards the surf break)


Short Range Forecast

Mostly dry. Very mild (max 15°C on Wed afternoon, min 11°C on Mon night). Wind will be generally light.

Mon
10
Tuesday
11
Wednesday
12
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
Rating
(10 max)
2
3
3
3
3
2
1
2
4
3
3
3
3
3
1
1
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)
2.4
NW
9
2.5
NW
8
2.3
NW
8
2.1
NW
9
2.1
NW
9
2.1
NW
9
2.1
NW
9
2.3
NW
9
3
NW
9
2.5
NW
8
2.5
NW
8
2.4
NW
8
2.4
NW
8
2.5
NW
8
2.3
NW
8
2.5
NW
8
2.5
NW
8
2.5
NW
8
Wave Graph
Metric surfscale
Energy kJ
841
899
694
611
686
625
625
763
1109
908
794
746
783
908
719
789
789
769
Wind (km/h)
5
NW
10
NNW
5
N
0
N
0
WNW
10
WNW
10
WNW
10
NW
15
NNW
10
NNW
10
NNW
10
N
5
N
10
NW
20
NW
15
NW
10
NNW
10
NNW
Wind State
cross
cross-off
glassy
glassy
glassy
cross-on
cross-on
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
cross-off
cross-off
High Tide
9:35PM2.11m
11:39AM1.43m
10:31PM2.12m
12:16PM1.52m
Low Tide
4:52AM-0.35m
4:20PM0.73m
5:35AM-0.34m
5:15PM0.62m
part cloud
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:24
6:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:16
8:15
8:14
 mm
Temp °C
11
11
11
11
12
13
14
14
13
12
12
12
13
14
15
14
13
13
Feels °C
10
10
10
11
12
11
12
12
11
11
10
11
13
12
12
12
12
12
  • 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 

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.


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