Cape Mendocino surfForecast / CAL – Humboldt / USA

information circle48hr Weather and Surf, issued 4 am Tuesday 21 Apr 2026 PDT
Forecast update in hr  min  s Forecast update imminent
Cape Mendocino surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Cape Mendocino sea temperature is
10.9° C
(Which is slightly cooler than normal)

How big are the waves at Cape Mendocino today?

The current surf forecast for Cape Mendocino at 8AM is: 1.6m 11s primary swell from a West-northwest direction and 0.5m 12s secondary swell from a South-southwest direction, 0.9m 6s secondary swell from a South direction (forecast issued at 04:00am April 21). The wind direction is predicted to be cross-offshore.

Time (PDT) & DateWave HeightWave Period
Morning (21 Apr)5ft (1.6m)11s
Afternoon (21 Apr)5ft (1.5m)10s
Evening (21 Apr)4.5ft (1.4m)10s

Table - waves today at Cape Mendocino. (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent
Tuesday
21
Wednesday
22
Thursday
23
2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM
Rating
(10 max)
3
2
2
2
1
1
3
3
3
3
3
1
1
2
2
3
4
3
2
2
0
0
0
2
Swell
Height Map
Wave Height (m) & direction (?)
1.8
WNW
1.7
WNW
1.6
WNW
1.5
WNW
1.5
WNW
1.4
WNW
1.4
WNW
1.4
WNW
1.4
WNW
0.8
WNW
0.9
WNW
1
WNW
1.1
WNW
1.1
WNW
1.3
WNW
1.3
WNW
1.7
WNW
1.8
NW
1.5
WNW
1.3
WNW
1.3
WNW
1.3
WNW
1.2
WNW
1
WNW
Period(s) (?)111111111110101010151514141414141413131313131212
Wave
Graph
(?)Metric surfscale
Energy kJ (?)84675061953148739638835632728733443746745361262110801116808536528504417309
Wind
(km/h)
20
SSE
15
SE
15
SE
20
SSE
15
SW
10
WSW
5
WSW
10
SSE
10
SSE
15
SSE
15
SSE
15
SSW
15
WSW
10
NW
10
N
15
NNE
15
NNE
15
NNE
15
NNE
25
N
30
N
30
N
25
N
25
NNE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
off
cross-
off
cross-
off
cross-
on
onglasscross-
off
cross-
off
cross-
off
cross-
off
crossoncross-
on
crosscross-
off
cross-
off
cross-
off
cross-
off
crosscrosscrosscrosscross-
off
High Tide
/ height (m)
1:52AM
1.87
4:34PM
1.30
2:49AM
1.77
5:46PM
1.32
3:56AM
1.65
6:52PM
1.37
Low Tide
/ height (m)
9:25AM
-0.37
9:14PM
0.92
10:29AM
-0.28
10:36PM
0.95
11:38AM
-0.19
Tuesday
21
Wednesday
22
Thursday
23
Sunrise--6:30-------6:28-------6:26-----
Sunset------8:01-------8:02-------8:04-
light rain
light rain
light rain
light rain
light rain
rain showers
rain showers
rain showers
rain showers
clear
clear
part cloud
clear
cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
Rain (mm)
224211111---------------
Temp. °C11111112121211109910121212111098911111198
Feels °C (?)778889986578998764565533
  • 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 Cape Mendocino 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.


Nearest locationNearest
Nearest locationNearest
Nearest locationNearest