Big River Surf Break

Lat Long: 39.30° N 123.80° W

Big River 48 hour detailed Surf Forecast

Issued: 4 pm 11 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):

  • Afternoon surf: Afternoon surf (11 Aug, local time) - 7ft (2.1m), 8s period with NW swell.
  • Evening surf: Evening surf (11 Aug, local time) - 8ft (2.5m), 8s period with NW swell.

The current surf forecast for Big River at 10PM is: 2.5m 8s primary swell from a Northwest direction and 0.5m 14s secondary swell from a South-southwest direction, 0.5m 18s secondary swell from a Southwest direction (forecast issued at 04:00pm August 11). The wind direction is predicted to be cross-offshore and the swell rating is 3.

Time (PDT) & DateWave HeightWave Period
Morning (11 Aug)--
Afternoon (11 Aug)7ft (2.1m)8s
Evening (11 Aug)8ft (2.5m)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 Tue night). Wind will be generally light.

Tue
11
Wednesday
12
Thursday
13
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
2
3
3
3
4
3
3
1
1
3
3
3
3
2
1
1
2
1
2
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)
2.1
NW
8
2.2
NW
8
2.5
NW
8
2.5
NW
8
2.4
NW
8
2.5
NW
8
2.4
NW
8
2.5
NW
8
2.3
NW
8
2.5
NW
8
2.5
NW
8
2.3
NW
8
2.2
NW
8
2.1
NW
8
2.2
NW
8
2
NW
8
1.9
NW
8
1.8
NW
8
1.7
NW
8
1.7
NW
8
Wave Graph
Metric surfscale
Energy kJ
582
665
1002
886
746
865
765
908
719
789
834
684
589
579
650
530
470
403
337
320
Wind (km/h)
15
WNW
10
WNW
15
NNW
5
N
5
NNW
5
N
5
NNW
10
WNW
20
NW
15
NW
10
NNW
5
NNW
10
NNW
5
NNW
5
SSE
10
WSW
10
WNW
15
WNW
10
NW
5
SE
Wind State
cross-on
cross
cross-off
cross-off
cross-off
cross-off
glassy
cross
cross
cross
cross-off
cross-off
cross-off
glassy
cross-on
cross-on
cross-on
cross
cross
glassy
High Tide
11:39AM1.43m
10:31PM2.12m
12:16PM1.52m
11:23PM2.07m
12:51PM1.60m
Low Tide
4:20PM0.73m
5:35AM-0.34m
5:15PM0.62m
6:15AM-0.27m
6:09PM0.52m
part cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
<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>
8:15
8:14
8:13
 mm
Temp °C
13
14
12
12
11
11
12
14
15
15
13
13
12
12
13
14
14
14
12
12
Feels °C
11
13
10
11
10
10
12
12
12
13
11
13
11
12
13
13
12
12
11
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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