Big River surfForecast / CAL – Mendocino County / USA

information circle48hr Weather and Surf, issued 10 pm Saturday 28 Mar 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
10.1° C
(Which is 1.5°C colder than average for this time of year)

How big are the waves at Big River today?

The current surf forecast for Big River at 5AM is: 1.5m 10s primary swell from a Northwest direction and 0.7m 13s secondary swell from a West-northwest direction (forecast issued at 10:00pm March 28). The wind direction is predicted to be cross-offshore and the swell rating is 2.

Time (PDT) & DateWave HeightWave Period
Morning (29 Mar)4.5ft (1.3m)9s
Afternoon (29 Mar)4ft (1.2m)9s
Evening (29 Mar)5ft (1.6m)7s

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


Updates in  hr  min  s Forecast update imminent
Sat
28
Sunday
29
Monday
30
Tuesday
31
8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM
Rating
(10 max)
3
3
3
2
2
1
1
1
1
2
2
2
2
1
2
1
2
2
2
1
1
1
0
2
Swell
Height Map
Wave Height (m) & direction (?)
2.1
NW
2.1
NW
1.8
NW
1.5
NW
1.3
NW
1.3
NW
1.2
NW
1.3
NW
1.5
NW
1.6
NW
1.6
NW
1.6
NW
1.3
NW
1.5
NW
1.6
NW
1.5
NW
1.3
NW
1.2
NW
1.1
NW
1.1
NW
0.9
NW
1.1
NW
1.1
NW
0.9
NW
Period(s) (?)108101099997777788888888999
Wave
Graph
(?)Metric surfscale
Energy kJ (?)86551057739128725522527521226226926016724428426421616915513896172172126
Wind
(km/h)
10
NNW
5
NNE
5
NNE
5
N
5
ENE
10
NW
15
NW
15
NW
10
NW
0
NW
5
NNW
5
N
10
N
10
NW
10
N
15
N
10
NNW
10
N
10
N
10
NNW
5
N
10
WNW
10
W
5
WSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
glasscross-
off
cross-
off
offcrosscrosscrosscrossglassglasscross-
off
cross-
off
crosscross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
glasscross-
on
cross-
on
glass
High Tide
/ height (m)
9:51PM
1.41
9:03AM
1.60
10:23PM
1.51
9:59AM
1.58
10:53PM
1.59
10:51AM
1.53
Low Tide
/ height (m)
3:08AM
0.59
3:45PM
-0.09
4:01AM
0.42
4:23PM
-0.01
4:47AM
0.27
4:57PM
0.10
Sat
28
Sunday
29
Monday
30
Tuesday
31
Sunrise----7:03-------7:03-------7:01---
Sunset-------7:35-------7:36-------7:37
part cloud
part cloud
part cloud
clear
clear
part cloud
cloud
cloud
clear
cloud
part cloud
part cloud
cloud
cloud
cloud
part cloud
cloud
cloud
cloud
part cloud
clear
clear
clear
part cloud
Rain (mm)
------------------------
Temp. °C121314141417151311111110101291099988101010
Feels °C (?)9111212121412991097796666656778
  • 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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