Cape Mendocino surfForecast / CAL – Humboldt / USA

information circle12 Day Weather and Surf, issued 9 am Friday 21 Nov 2025 PST
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
12.3° C
(Which is normal for this time of year)


Best Forecast Surf Conditions for Cape Mendocino this week:

The surf forecast for Cape Mendocino over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Nov 21) at 1PM. The primary swell is predicted to be 3.5m and 13s period with a secondary swell of 0.4m and 13s. The wind is predicted to be cross-shore as the swell arrives.

The most powerful waves expected at Cape Mendocino in the next 12 days are 3.5m 16s and forecast to arrive on Saturday (Nov 22) at 10AM. Winds are predicted to be cross-shore at the time the swell arrives.

Wave TypeTime (PST) & Date Wave Height & Period
Next good surf (1 star+) 1PM (Fri 21st Nov)11ft (3.5m) 13s
Best Surf 1PM (Fri 21st Nov)11ft (3.5m) 13s
Most Powerful10AM (Sat 22nd Nov)11ft (3.5m) 16s

Table - best surf conditions forecast for Cape Mendocino over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Very mild (max 13°C on Fri morning, min 10°C on Fri night). Mainly fresh winds.

Days 3-6 Weather Summary Mostly dry. Very mild (max 12°C on Tue morning, min 8°C on Mon night). Winds decreasing (fresh winds from the N on Mon morning, calm by Wed morning).

Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
!
!
!
!
!
!
!
!
!
!
!
3
2
1
3
2
2
4
4
3
4
Swell
Height Map
Wave Height (m) & direction (?)
3.5
WNW
3.5
WNW
3
WNW
3.5
WNW
3.5
WNW
3.5
WNW
3
WNW
3
WNW
3
WNW
3
NW
3
NW
2.2
NW
1.9
WNW
1.7
NW
1.4
NW
1.3
WNW
1.4
WNW
1.8
WNW
1.1
WNW
1.4
WNW
1.7
WNW
Period(s) (?)141312161615161615151413131312121111181716
Wave
Graph
(?)Metric surfscale
Energy kJ (?)469239493186669459654957479747974580361532401736118092149745645073280311891358
Wind
(km/h)
20
N
20
NNE
5
ENE
15
N
20
N
15
NNE
10
NW
5
W
30
N
30
N
30
N
20
NNE
20
N
20
N
10
NNE
5
N
10
NNW
5
NE
0
NW
5
N
10
SSE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscross-
off
cross-
off
crosscrosscross-
off
cross-
on
glasscrosscrosscrosscross-
off
crosscrosscross-
off
glasscrosscross-
off
glasscrosscross-
off
High Tide
/ height (m)
10:37AM
1.76
1:16AM
1.31
11:11AM
1.73
2:02AM
1.30
11:48AM
1.69
2:49AM
1.30
12:30PM
1.63
3:37AM
1.32
1:18PM
1.56
4:22AM
1.36
2:16PM
1.47
5:02AM
1.42
3:25PM
1.37
Low Tide
/ height (m)
6:07PM
-0.17
5:44AM
1.04
6:43PM
-0.16
6:22AM
1.09
7:24PM
-0.13
7:08AM
1.12
8:08PM
-0.09
8:07AM
1.12
8:56PM
-0.03
9:23AM
1.09
9:46PM
0.04
10:44AM
0.98
10:38PM
0.12
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Sunrise7:09--7:11--7:11--7:13--7:13--7:15--7:16--
Sunset-4:55--4:54--4:54--4:53--4:53--4:52--4:52-
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
cloud
cloud
light rain
Rain (mm)
--------------------4
Temp. °C1312111312101312111110912109121110131313
Feels °C (?)878876121164336541088121112
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the Cape Mendocino Surf forecast

The above surf forecast table for Cape Mendocino provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Cape Mendocino can be found by selecting the local surf guide option on the grey menu. Our Cape Mendocino surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Cape Mendocino) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Cape Mendocino may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Cape Mendocino is 47 km (29 miles) from Eureka. If you plan a vacation in Humboldt County, look for hotels and other accommodation in Eureka. Eureka has rooms for a wide range of budgets as well as car hire and transport links.

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