Big River Surf Break

Lat Long: 39.30° N 123.80° W

Big River 48 hour detailed Surf Forecast

Issued: 4 pm 17 Aug 2026 (local time)

Forecast update in  hr  min

Today's Big River sea temperature is
13.0° C
1.5° 

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 (17 Aug):

  • Afternoon surf: Afternoon surf (17 Aug, local time) - 3ft (0.9m), 15s period with SSW swell.
  • Evening surf: Evening surf (17 Aug, local time) - 3ft (0.9m), 15s period with SSW swell.

The current surf forecast for Big River at 9PM is: 0.9m 15s primary swell from a South-southwest direction and 1.1m 7s secondary swell from a Northwest direction (forecast issued at 04:00pm August 17). The wind direction is predicted to be cross-shore.

Time (PDT) & DateWave HeightWave Period
Morning (17 Aug)--
Afternoon (17 Aug)3ft (0.9m)15s
Evening (17 Aug)3ft (0.9m)15s

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
17
Tuesday
18
Wednesday
19
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)
0
1
1
2
2
2
2
1
0
1
3
3
3
3
3
2
1
1
2
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)
0.9
SSW
15
0.9
SSW
15
0.9
SSW
15
0.9
SSW
15
0.8
SSW
14
0.8
SSW
14
1.5
NW
7
1.6
NW
7
0.9
SSW
15
0.9
SSW
16
0.9
SSW
16
0.9
SSW
16
0.8
SSW
16
1.9
NW
7
2
NW
8
1.9
NW
8
1.8
NW
8
2
NW
8
2
NW
8
2
NW
7
Wave Graph
Metric surfscale
Energy kJ
334
334
334
334
268
268
218
239
309
353
402
402
344
371
435
435
395
435
435
423
Wind (km/h)
15
WSW
10
WNW
5
NW
5
WNW
10
NNW
10
NNW
5
NNW
10
NW
20
NW
15
NW
5
WNW
5
NNW
15
NNW
10
NNW
5
NNW
15
NW
15
NW
20
NW
10
NW
5
NW
Wind State
on
cross-on
cross
glassy
cross-off
cross-off
glassy
cross
cross
cross
glassy
glassy
cross-off
cross-off
cross-off
cross
cross
cross
cross
glassy
High Tide
3:14PM1.71m
4:01AM1.23m
3:53PM1.68m
5:26AM1.11m
4:39PM1.64m
Low Tide
9:52PM0.34m
9:15AM0.63m
10:58PM0.32m
9:55AM0.80m
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:30
6:31
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:07
8:06
8:05
 mm
Temp °C
14
13
12
11
11
11
12
14
14
13
12
12
12
11
12
14
15
14
12
12
Feels °C
12
12
11
11
10
10
12
13
11
10
12
12
10
10
11
12
12
11
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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