Cape Mendocino surfForecast / CAL – Humboldt / USA

information circle16 Day Weather and Surf, issued 10 am Sunday 05 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
9.9° C
(Which is 1.3°C colder than average for this time of year)

Best Forecast Surf Conditions for Cape Mendocino this week:

The surf forecast for Cape Mendocino over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Apr 05) at 8PM. The primary swell is predicted to be 1.3m and 12s period with a secondary swell of 0.8m and 16s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Cape Mendocino in the next 16 days are 1.3m 12s and forecast to arrive on Sunday (Apr 05) at 2PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 9s period and expected on Saturday (Apr 11) at 5AM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Sun 5th Apr)4.5ft (1.3m) 12s
Best Surf 8PM (Sun 5th Apr)4.5ft (1.3m) 12s
Most Powerful 2PM (Sun 5th Apr)4.5ft (1.3m) 12s

Table - best surf conditions forecast for Cape Mendocino over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Very mild (max 18°C on Sun morning, min 10°C on Tue night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Very mild (max 14°C on Wed morning, min 9°C on Fri night). Wind will be generally light.

Sunday
05
Monday
06
Tuesday
07
Wednesday
08
Thursday
09
Friday
10
Saturday
11
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
3
2
3
2
2
2
1
1
2
0
0
2
0
1
1
1
1
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1.3
WNW
1.3
WNW
1.2
WNW
0.8
S
0.8
S
0.7
S
0.9
S
0.8
S
0.7
S
0.6
S
0.6
S
0.6
SW
0.6
SW
0.7
SW
0.8
WNW
0.8
SSW
0.8
SSW
0.8
SSW
0.9
SSW
0.7
SSW
0.8
SSW
Period(s) (?)121211161515141414131316161614181615161516
Wave
Graph
(?)Metric surfscale
Energy kJ (?)458436359306283212325236179127123211211278274395322291380209280
Wind
(km/h)
5
SW
5
N
0
SE
5
WSW
5
W
0
ESE
5
WNW
15
NNW
10
NNE
10
NW
15
N
15
NNE
10
NW
20
N
20
N
20
NNW
25
NNW
25
N
30
NNW
35
N
30
N
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glasscrossglasscross-
on
onglasscross-
on
crosscross-
off
cross-
on
crosscross-
off
cross-
on
crosscrosscrosscrosscrosscrosscrosscross
High Tide
/ height (m)
2:59PM
1.22
1:40AM
1.63
4:01PM
1.16
2:17AM
1.57
5:18PM
1.12
3:04AM
1.50
6:45PM
1.14
4:02AM
1.44
7:49PM
1.19
5:11AM
1.39
8:29PM
1.25
6:24AM
1.38
8:58PM
1.32
Low Tide
/ height (m)
8:21AM
-0.03
8:01PM
0.83
9:04AM
-0.00
8:39PM
0.94
9:53AM
0.05
9:31PM
1.02
10:51AM
0.10
10:53PM
1.06
11:57AM
0.12
12:28AM
1.04
1:01PM
0.12
1:40AM
0.95
1:56PM
0.11
2:34AM
0.81
Sunday
05
Monday
06
Tuesday
07
Wednesday
08
Thursday
09
Friday
10
Saturday
11
Sunrise6:54--6:52--6:52--6:50--6:48--6:47--6:45--
Sunset-7:45--7:46--7:47--7:49--7:50--7:51--7:52-
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
cloud
cloud
part cloud
clear
part cloud
Rain (mm)
---------------------
Temp. °C18171615151314151214131112121112121011119
Feels °C (?)1615141313121212911108997884442
  • 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 16 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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