Big River Surf Break

Lat Long: 39.30° N 123.80° W

Big River 48 hour detailed Surf Forecast

Issued: 4 pm 20 Oct 2026 (local time)

Forecast update in  hr  min

Today's Big River sea temperature is
14.1°C
0.4° 

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 (20 Oct):

  • Afternoon surf: Afternoon surf (20 Oct, local time) - 8ft (2.5m), 12s period with WNW swell.
  • Evening surf: Evening surf (20 Oct, local time) - 7ft (2.1m), 11s period with WNW swell.

The current surf forecast for Big River at 9PM is: 2.1m 11s primary swell from a West-northwest direction and 1.0m 15s secondary swell from a South-southwest direction (forecast issued at 04:00pm October 20). The wind direction is predicted to be offshore and the swell rating is 4.

Time (PDT) & DateWave HeightWave Period
Morning (20 Oct)--
Afternoon (20 Oct)8ft (2.5m)12s
Evening (20 Oct)7ft (2.1m)11s

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


Short Range Forecast

Light rain (total 9mm), mostly falling on Thu morning. Very mild (max 16°C on Wed morning, min 10°C on Thu night). Wind will be generally light.

Tue
20
Wednesday
21
Thursday
22
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
4
4
4
3
3
1
3
2
2
3
2
1
2
2
2
3
2
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)
2.5
NW
12
2.5
WNW
12
2.2
WNW
11
1.9
WNW
11
1.6
NW
10
1.5
WNW
10
1
SSW
15
1.1
SSW
15
1.1
SSW
15
1.1
SSW
16
1
SSW
16
0.7
SSW
13
0.8
SSW
14
0.9
SSW
14
1
SSW
14
1
SSW
15
1
SSW
15
0.6
SSW
19
1.9
NW
7
2.1
NW
7
Wave Graph
Metric surfscale
Energy kJ
2069
1694
1242
845
520
466
456
543
558
620
534
187
247
317
443
456
456
283
371
440
Wind (km/h)
15
WNW
10
NNW
10
N
5
NNE
5
E
5
ENE
10
SSE
5
SW
5
W
5
WNW
5
NE
5
S
5
SSE
5
ESE
5
E
0
NNE
10
NNW
20
NNW
10
NW
10
NNW
Wind State
cross-on
cross-off
cross-off
glassy
cross-off
off
cross-on
glassy
cross-on
cross-on
glassy
glassy
cross
cross-off
glassy
glassy
cross-off
cross-off
cross
cross-off
High Tide
7:22PM1.41m
8:55AM1.48m
8:23PM1.43m
9:19AM1.58m
9:18PM1.45m
Low Tide
1:51PM0.85m
2:04AM0.25m
2:39PM0.69m
2:41AM0.28m
3:21PM0.50m
cloud
cloud
cloud
cloud
cloud
part cloud
cloud
light rain
cloud
part cloud
part cloud
part cloud
cloud
light rain
light rain
light rain
light rain
cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
—
—
—
—
7:30
—
—
—
—
—
—
—
7:31
—
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
6:29
—
—
—
—
—
—
—
6:28
—
—
—
—
—
—
—
6:25
—
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 mm
—
—
—
—
—
—
—
1
—
—
—
—
—
1
4
2
1
—
—
—
Temp °C
15
14
12
12
13
14
13
16
15
14
13
14
13
13
12
13
13
12
12
11
Feels °C
11
11
9
11
11
12
10
15
14
13
13
14
12
12
11
13
12
9
10
9
  • 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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