Cape Mendocino surfForecast / CAL – Humboldt / USA

information circle12 Day Weather and Surf, issued 9 pm Wednesday 03 Dec 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
12.5° 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 Thursday (Dec 04) at 10PM. The primary swell is predicted to be 1.1m and 12s period with a secondary swell of 0.3m and 14s. Another secondary swell of 1.0m and 6s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Cape Mendocino in the next 12 days are 4.0m 16s and forecast to arrive on Wednesday (Dec 10) at 10AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 13s period and expected on Saturday (Dec 06) at 7PM.

Wave TypeTime (PST) & Date Wave Height & Period
Next good surf (1 star+)10PM (Thu 4th Dec)3.5ft (1.1m) 12s
Best Surf 1PM (Tue 9th Dec)10ft (3.0m) 13s
Most Powerful10AM (Wed 10th Dec)13ft (4.0m) 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 14°C on Fri morning, min 10°C on Wed night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Very mild (max 16°C on Mon morning, min 13°C on Sat night). Wind will be generally light.

Thursday
04
Friday
05
Saturday
06
Sunday
07
Monday
08
Tuesday
09
Wed
10
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
2
1
0
2
0
0
2
2
3
3
2
3
3
3
3
4
4
!
!
!
!
Swell
Height Map
Wave Height (m) & direction (?)
1.3
WNW
1.1
WNW
1.1
WNW
1.1
W
1.1
W
1.1
W
1.2
W
1.4
WNW
1.7
WNW
1.6
WNW
1.4
WNW
1.4
WNW
1.5
WNW
1.6
WNW
2.2
NW
2.4
WNW
2.5
WNW
3
WNW
3
WNW
4
WNW
4
WNW
Period(s) (?)131212121111111313121211111011121313141616
Wave
Graph
(?)Metric surfscale
Energy kJ (?)5993923793473022973457009177684884475114721213171522532948356287196895
Wind
(km/h)
15
N
15
NNE
25
N
15
NNE
20
N
20
N
15
NNE
15
N
15
N
5
ENE
5
SW
0
NNW
5
NNE
10
NNE
10
NNW
0
NW
5
SW
5
WSW
10
S
15
N
20
NNE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
off
crosscross-
off
crosscrosscross-
off
crosscrosscross-
off
cross-
on
glasscross-
off
cross-
off
crossglassglassglasscrosscrosscross-
off
High Tide
/ height (m)
10:52PM
1.43
9:25AM
2.15
11:48PM
1.47
10:12AM
2.16
12:42AM
1.49
11:01AM
2.11
1:35AM
1.50
11:52AM
2.02
2:28AM
1.51
12:47PM
1.87
3:20AM
1.53
1:46PM
1.69
4:10AM
1.56
2:51PM
1.50
Low Tide
/ height (m)
3:39AM
0.82
4:55PM
-0.55
4:30AM
0.89
5:44PM
-0.58
5:24AM
0.93
6:33PM
-0.54
6:21AM
0.95
7:25PM
-0.44
7:24AM
0.95
8:17PM
-0.29
8:35AM
0.93
9:10PM
-0.12
9:54AM
0.85
Thursday
04
Friday
05
Saturday
06
Sunday
07
Monday
08
Tuesday
09
Wed
10
Sunrise-7:24--7:24--7:24--7:26--7:26--7:28--7:28-
Sunset--4:51--4:51--4:51--4:50--4:50--4:50--4:51
part cloud
clear
part cloud
cloud
part cloud
part cloud
part cloud
clear
part cloud
cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
cloud
cloud
rain showers
part cloud
cloud
Rain (mm)
------------------4--
Temp. °C111311121414131414141515141615141414141212
Feels °C (?)7761011111211111114151314131314141298
  • 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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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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