Big River Surf Break

Lat Long: 39.30° N 123.80° W

Big River 48 hour detailed Surf Forecast

Issued: 4 pm 09 Aug 2026 (local time)

Forecast update in  hr  min

Today's Big River sea temperature is
14.2° C
0.1° 

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 (09 Aug):

  • Afternoon surf: Afternoon surf (09 Aug, local time) - 8ft (2.5m), 8s period with NW swell.
  • Evening surf: Evening surf (09 Aug, local time) - 10ft (3.0m), 9s period with NW swell.

The current surf forecast for Big River at 9PM is: 3.0m 9s primary swell from a Northwest direction and 0.6m 15s secondary swell from a South-southwest direction, 0.3m 12s secondary swell from a South-southwest direction (forecast issued at 04:00pm August 09). The wind direction is predicted to be cross-offshore and the swell rating is 4.

Time (PDT) & DateWave HeightWave Period
Morning (09 Aug)--
Afternoon (09 Aug)8ft (2.5m)8s
Evening (09 Aug)10ft (3.0m)9s

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


Short Range Forecast

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

Sun
9
Monday
10
Tuesday
11
2 PM
5 PM
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)
1
1
4
4
3
4
3
2
2
2
2
3
4
3
3
1
2
2
3
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)
2.3
NW
8
2.5
NW
8
3
NW
9
3
NW
8
2.5
NW
8
2.5
NW
9
2.4
NW
9
2.3
NW
9
2.2
NW
9
2.3
NW
9
2.4
NW
9
2.5
NW
8
2.5
NW
9
2.2
NW
9
2.1
NW
9
2.1
NW
9
2.1
NW
9
2.1
NW
9
2.4
NW
9
2.5
NW
8
Wave Graph
Metric surfscale
Energy kJ
736
828
1282
1252
948
1134
901
780
730
780
861
976
1011
747
702
639
639
686
861
931
Wind (km/h)
20
NW
20
NW
10
NNW
15
NNW
10
NNW
5
NNW
5
NNW
15
NW
15
WNW
10
WNW
10
NW
10
NNW
5
N
5
N
5
NNW
10
WNW
10
WNW
10
NW
15
NNW
10
NNW
Wind State
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
cross
cross-off
cross-off
glassy
glassy
cross-on
cross
cross
cross-off
cross-off
High Tide
8:36PM2.05m
11:01AM1.34m
9:35PM2.11m
11:39AM1.43m
10:31PM2.12m
Low Tide
2:14PM0.91m
4:05AM-0.31m
3:21PM0.83m
4:52AM-0.35m
4:20PM0.73m
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:22
6:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:17
8:16
8:15
 mm
Temp °C
15
14
13
11
11
11
12
14
14
14
12
12
12
12
13
14
14
14
13
12
Feels °C
12
11
11
8
9
10
11
12
12
12
11
10
11
12
13
12
12
12
11
10
  • 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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