Big River Surf Break

Lat Long: 39.30° N 123.80° W

Big River 48 hour detailed Surf Forecast

Issued: 4 am 02 Sep 2026 (local time)

Forecast update in  hr  min

Today's Big River sea temperature is
12.3°C
2.5° 

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 (02 Sep):

  • Morning surf: Morning surf (02 Sep, local time) - 2ft (0.6m), 18s period with SW swell.
  • Afternoon surf: Afternoon surf (02 Sep, local time) - 3.5ft (1.1m), 9s period with WNW swell.
  • Evening surf: Evening surf (02 Sep, local time) - 4.5ft (1.3m), 8s period with W swell.

The current surf forecast for Big River at 12PM is: 0.6m 18s primary swell from a Southwest direction and 0.9m 9s secondary swell from a West-northwest direction, 0.4m 3s secondary swell from a South-southwest direction (forecast issued at 04:00am September 02). The wind direction is predicted to be onshore.

Time (PDT) & DateWave HeightWave Period
Morning (02 Sep)2ft (0.6m)18s
Afternoon (02 Sep)3.5ft (1.1m)9s
Evening (02 Sep)4.5ft (1.3m)8s

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


Short Range Forecast

Moderate rain (total 10mm), heaviest on Wed night. Very mild (max 17°C on Wed morning, min 12°C on Thu night). Wind will be generally light.

Wednesday
2
Thursday
3
Friday
4
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
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
Rating
(10 max)
2
2
1
0
0
0
0
0
1
2
2
1
3
3
3
4
4
4
4
3
3
2
3
3
Swell
Height Map
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
SSW
13
0.7
SSW
13
0.6
SW
18
0.6
SW
18
1
WNW
9
1.1
W
9
1.3
W
8
1.5
W
8
1.7
W
8
1.6
W
8
0.8
SSW
19
0.9
SW
19
1.8
WNW
10
1.8
WNW
10
1.7
WNW
11
1.9
NW
11
2
NW
11
2
NW
11
1.9
NW
11
1.9
NW
11
1.8
NW
10
1.7
NW
10
1
SSW
17
1.1
SSW
16
Wave Graph
Metric surfscale
Energy kJ
154
154
252
246
173
190
234
309
386
349
441
528
590
627
674
908
952
935
850
819
664
580
569
659
Wind (km/h)
10
SE
10
ESE
15
SSE
20
S
20
SSW
20
S
20
SSE
20
SSE
15
SE
10
SE
10
SSE
10
SSW
5
SW
5
WSW
0
E
5
E
5
ENE
10
ENE
10
E
5
W
10
WNW
10
NW
10
N
5
NE
Wind State
cross-off
cross-off
cross
cross-on
on
cross-on
cross-on
cross
cross
cross
cross
cross-on
glassy
glassy
glassy
cross-off
cross-off
cross-off
cross-off
cross-on
cross
cross
cross-off
off
High Tide
3:33AM1.25m
3:02PM1.82m
4:58AM1.15m
3:53PM1.82m
6:39AM1.13m
4:57PM1.82m
Low Tide
8:31AM0.67m
10:17PM0.14m
9:15AM0.82m
11:32PM0.09m
10:16AM0.93m
cloud
cloud
part cloud
part cloud
part cloud
cloud
light rain
light rain
light rain
light rain
cloud
cloud
light rain
cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:43
6:45
6:46
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:44
7:43
7:40
 mm
1
2
5
1
1
Temp °C
16
15
16
17
16
15
15
15
15
15
15
16
15
15
14
13
13
12
12
15
15
15
14
13
Feels °C
14
13
14
14
13
12
12
12
13
14
14
16
15
15
15
12
12
10
10
14
13
13
13
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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