Big River surfForecast / CAL – Mendocino County / USA

information circle48hr Weather and Surf, issued 4 pm Monday 20 Apr 2026 PDT
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
11.5° 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 8PM is: 2.3m 12s primary swell from a West-northwest direction and 0.8m 6s secondary swell from a South direction (forecast issued at 04:00pm April 20). The wind direction is predicted to be cross-shore.

Time (PDT) & DateWave HeightWave Period
Morning (20 Apr)--
Afternoon (20 Apr)8ft (2.4m)13s
Evening (20 Apr)7.5ft (2.3m)12s

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


Updates in  hr  min  s Forecast update imminent
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM
Rating
(10 max)
2
3
3
4
2
2
2
1
1
1
1
2
2
2
2
1
1
1
3
3
3
3
3
2
Swell
Height Map
Wave Height (m) & direction (?)
2.4
WNW
2.4
WNW
2.3
WNW
2.2
WNW
2
WNW
1.8
WNW
1.7
WNW
1.7
WNW
1.6
WNW
1.6
WNW
1.5
WNW
1.5
WNW
1.4
WNW
1.4
W
1.4
W
0.9
WNW
1
WNW
1
WNW
1.2
WNW
1.2
WNW
1.3
WNW
1.3
WNW
1.7
NW
1.7
WNW
Period(s) (?)13121212121211111111101010109151514141414141313
Wave
Graph
(?)Metric surfscale
Energy kJ (?)184416761499131010778767506626085864834423633773393724433965015386306631042950
Wind
(km/h)
20
SSE
15
SE
10
SSE
10
ESE
15
SE
10
SE
10
SE
15
SSW
15
W
15
NW
10
NW
5
E
10
ESE
10
ESE
10
SE
15
SSW
15
WSW
10
W
10
NNW
5
NE
5
NE
10
NE
5
NE
10
NW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrosscrosscross-
off
crosscrosscrossoncross-
on
crosscrossglasscross-
off
cross-
off
crosscross-
on
oncross-
on
cross-
off
offoffoffoffcross
High Tide
/ height (m)
3:12PM
1.23
1:46AM
1.90
4:25PM
1.19
2:41AM
1.79
5:41PM
1.19
3:48AM
1.66
Low Tide
/ height (m)
7:33PM
0.74
9:14AM
-0.39
8:31PM
0.82
10:18AM
-0.31
9:47PM
0.87
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Sunrise------6:30-------6:28-------6:26-
Sunset-7:57-------7:58-------7:59------
light rain
light rain
light rain
light rain
light rain
light rain
rain showers
light rain
rain showers
rain showers
rain showers
rain showers
clear
clear
part cloud
cloud
cloud
part cloud
clear
clear
clear
clear
part cloud
part cloud
Rain (mm)
311111121111------------
Temp. °C131312111111111212121110999111112111098810
Feels °C (?)101010889999889766889987667
  • 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

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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