Big River Surf Break

Lat Long: 39.30° N 123.80° W

Big River 48 hour detailed Surf Forecast

Issued: 4 pm 21 Jul 2026 (local time)

Forecast update in  hr  min

Today's Big River sea temperature is
12.8° C
0.7° 

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 (21 Jul):

  • Afternoon surf: Afternoon surf (21 Jul, local time) - 2.5ft (0.7m), 14s period with SW swell.
  • Evening surf: Evening surf (21 Jul, local time) - 4ft (1.2m), 14s period with S swell.

The current surf forecast for Big River at 10PM is: 0.9m 14s primary swell from a South-southwest direction and 1.0m 12s secondary swell from a South direction (forecast issued at 04:00pm July 21). The wind direction is predicted to be glassy and the swell rating is 3.

Time (PDT) & DateWave HeightWave Period
Morning (21 Jul)--
Afternoon (21 Jul)2.5ft (0.7m)14s
Evening (21 Jul)4ft (1.2m)14s

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


Short Range Forecast

Mostly dry. Very mild (max 19°C on Wed morning, min 12°C on Wed night). Mainly fresh winds.

Tue
21
Wednesday
22
Thursday
23
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)
2
3
2
3
1
2
0
0
0
0
2
2
2
2
2
1
0
1
2
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)
0.7
SW
14
1.2
S
13
1.2
S
14
0.9
SSW
14
1.2
S
12
1.2
S
11
1.2
SSW
11
1.3
S
10
1.6
S
10
1.4
S
9
0.8
SSW
14
0.8
SSW
14
0.8
SSW
14
0.8
SSW
14
0.8
SSW
14
0.8
SSW
14
0.8
SSW
14
0.8
SSW
14
0.8
SSW
14
0.8
SSW
14
Wave Graph
Metric surfscale
Energy kJ
203
521
537
325
403
364
343
332
480
311
239
239
250
257
261
261
233
229
226
223
Wind (km/h)
5
SW
5
W
5
SSE
5
SSE
5
SE
10
SSE
15
S
25
SSW
30
SSW
10
SW
0
NW
5
N
5
N
10
N
10
NNW
15
NW
15
NW
15
NNW
10
N
10
NNE
Wind State
glassy
glassy
cross-on
glassy
cross
cross
cross-on
cross-on
on
on
glassy
cross-off
cross-off
cross-off
cross-off
cross
cross
cross-off
cross-off
cross-off
High Tide
5:43PM1.69m
7:20AM1.02m
6:30PM1.69m
9:00AM1.05m
7:18PM1.70m
Low Tide
00:57AM0.31m
11:35AM0.76m
2:02AM0.20m
12:33PM0.88m
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:05
6:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:37
8:36
8:35
 mm
Temp °C
16
17
15
16
18
17
18
19
17
15
14
14
13
12
12
13
14
14
13
13
Feels °C
15
16
14
15
17
16
16
16
13
14
15
14
13
11
11
11
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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