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Surf Forecasts:

Big River surfForecast / CAL – Mendocino County / USA

information circle48hr Weather and Surf, issued 9 am Thursday 20 Nov 2025 PST
Forecast update in hr  min  s Forecast update imminent
Big River surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Big River sea temperature is
13.3° C
 (Which is normal for this time of year)

How big are the waves at Big River today?

The current surf forecast for Big River at 12PM is: 3.0m 13s primary swell from a West-northwest direction and 0.4m 14s secondary swell from a South-southwest direction (forecast issued at 09:00am November 20). The wind direction is predicted to be cross-offshore and the swell rating is 4.

Time (PST) & DateWave HeightWave Period
Morning (20 Nov)8ft (2.5m)10s
Afternoon (20 Nov)11ft (3.5m)13s
Evening (20 Nov)15ft (4.5m)14s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Thursday
20
Friday
21
Saturday
22
Sun
23
7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM
Rating
(10 max)
4
4
4
4
6
7
6
6
5
5
4
5
5
4
4
4
5
5
4
5
5
5
5
5
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
2.3
WNW
2.5
WNW
3
WNW
4
WNW
4.5
WNW
4.5
WNW
4.5
WNW
4
WNW
4
WNW
3.5
WNW
3.5
WNW
3.5
WNW
3.5
WNW
3
WNW
3
WNW
3
WNW
3
WNW
3
WNW
3.5
WNW
3.5
WNW
3.5
WNW
3.5
WNW
3.5
WNW
3.5
WNW
Period(s) (?)101013141414151414141313131312141414161616151615
Wave
Graph
(?)Metric surfscale
Energy kJ (?)106113933302591979568298787966996168539945244245406234992923377236633613637761445601552951685101
Wind
(km/h)
10
NE
10
NW
15
NNW
15
NNW
20
NNW
5
ENE
15
E
10
NNE
10
ENE
5
NNE
15
NW
10
NNW
5
ENE
5
E
10
ESE
10
E
10
E
0
ESE
10
WNW
10
NNW
5
NNE
5
ESE
5
E
5
NE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offcross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		offoffglasscrosscross-
off		glasscross-
off		cross-
off		cross-
off		cross-
off		glasscrosscross-
off		glasscross-
off		cross-
off		off
High Tide
/ height (m)
10:03AM
1.85
12:24AM
1.32
10:34AM
1.83
1:08AM
1.32
11:07AM
1.80
1:55AM
1.31
Low Tide
/ height (m)
5:21PM
-0.11
4:33AM
0.96
5:57PM
-0.11
5:08AM
1.01
6:36PM
-0.09
Thursday
20
Friday
21
Saturday
22
Sun
23
Sunrise-7:03-------7:05-------7:05------
Sunset---4:57-------4:55-------4:55----
part cloud
part cloud
cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
part cloud
Rain (mm)
------------------------
Temp. °C11121212119988111211111212111113131210101010
Feels °C (?)9988775559889109881110108888
  • 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

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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.

View detailed surf forecast for Big River at:
surf-forecast.com

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