Cape Mendocino surfForecast / CAL – Humboldt / USA

information circle16 Day Weather and Surf, issued 10 am Tuesday 12 May 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
11.1° C
(Which is slightly cooler than normal)

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 Saturday (May 16) at 11PM. The primary swell is predicted to be 3.0m and 13s period with a secondary swell of 0.6m and 14s. Another secondary swell of 0.6m and 14s is also forecast. The wind is predicted to be cross-shore as the swell arrives.

The most powerful waves expected at Cape Mendocino in the next 16 days are 3.0m 13s and forecast to arrive on Sunday (May 17) at 2AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 8s period and expected on Monday (May 18) at 5AM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+)11PM (Sat 16th May)10ft (3.0m) 13s
Best Surf11PM (Sat 16th May)10ft (3.0m) 13s
Most Powerful 2AM (Sun 17th May)10ft (3.0m) 13s

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 15°C on Tue afternoon, min 9°C on Wed night). Winds increasing (light winds from the W on Tue night, fresh winds from the N by Thu afternoon).

Days 4-6 Weather Summary

Mostly dry. Very mild (max 13°C on Fri afternoon, min 9°C on Sun night). Mainly strong winds.

Tuesday
12
Wednesday
13
Thursday
14
Friday
15
Saturday
16
Sunday
17
Monday
18
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
2
1
1
2
2
0
0
2
0
0
0
1
0
!
1
0
1
0
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.2
WNW
11
1.1
WNW
11
1.3
WNW
11
1.7
W
13
1.8
WNW
12
1.8
WNW
11
1.7
WNW
10
1.6
WNW
10
1.3
WNW
9
0.8
SSW
15
1
WNW
15
1.3
WNW
14
1.6
WNW
14
1.7
WNW
13
3
NW
13
2.5
NW
12
1.6
WNW
12
2.5
NW
8
2.4
NW
8
1
WNW
10
0.8
WNW
15
Wave Graph
Metric surfscale
Energy kJ
356
303
454
942
928
757
551
480
266
266
428
732
876
972
2789
1977
698
906
614
200
302
Wind (km/h)
15
NNW
15
NNW
15
NW
15
NNW
20
NNW
20
NNE
30
N
30
N
25
N
30
N
35
N
30
N
30
N
35
N
35
N
30
NNW
40
N
35
N
30
NNW
35
N
25
N
cross
cross
cross-on
cross-on
cross
cross-off
cross
cross
cross-off
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross-off
High Tide
8:13AM1.23m
8:44PM1.62m
9:24AM1.25m
9:16PM1.75m
10:29AM1.30m
9:50PM1.86m
11:30AM1.34m
10:27PM1.96m
12:28PM1.37m
11:09PM2.01m
1:26PM1.39m
11:54PM2.02m
2:23PM1.39m
00:44AM1.98m
Low Tide
2:25PM0.28m
3:33AM0.19m
3:09PM0.39m
4:17AM-0.06m
3:53PM0.50m
5:01AM-0.30m
4:38PM0.61m
5:46AM-0.47m
5:24PM0.71m
6:34AM-0.58m
6:12PM0.79m
7:23AM-0.61m
7:05PM0.85m
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
part cloud
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:03
6:03
6:01
6:01
6:00
5:58
5:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:22
8:23
8:24
8:25
8:27
8:28
8:29
Temp °C
14
15
14
13
14
12
13
13
11
12
13
10
12
13
11
12
13
11
12
13
11
11
12
12
10
10
8
7
7
5
6
7
3
6
6
4
5
7
4
5
6
5
Swell 1
Height (m)
Direction
Period (s)
1.2
WNW
11
1.1
WNW
11
1.3
WNW
11
1.7
W
13
1.8
WNW
12
1.8
WNW
11
1.7
WNW
10
1.6
WNW
10
1.3
WNW
9
0.8
SSW
15
1
WNW
15
1.3
WNW
14
1.6
WNW
14
1.7
WNW
13
0.6
SSW
14
0.5
SSW
14
1.6
WNW
12
0.4
SSW
13
0.4
SSW
13
1
WNW
10
0.8
WNW
15
Energy kJ
356
303
454
942
928
757
551
480
266
266
428
732
876
972
165
118
698
60
58
200
302
Swell 2
Height (m)
Direction
Period (s)
0.7
SSW
15
0.8
SSW
15
0.8
SSW
15
0.6
SSW
14
0.7
SSW
14
0.5
SSW
13
0.4
SSW
13
0.8
SSW
16
0.7
SSW
16
0.7
WNW
16
0.8
SSW
15
0.5
SSW
14
0.5
S
13
0.7
SSW
15
0.1
S
20
0.1
SW
18
0.5
SSW
14
0.2
SSW
18
0.3
WNW
18
0.4
WNW
17
0.4
SW
17
Energy kJ
191
242
242
136
166
102
70
298
266
232
252
108
92
225
7
13
111
31
62
117
75
Swell 3
Height (m)
Direction
Period (s)
0.2
S
18
0.2
S
14
0.3
W
15
0.2
SSW
19
0.2
S
13
0.4
SSW
18
0.4
SSW
17
0.2
S
12
0.4
NW
18
0.6
WNW
9
0.2
S
18
0.5
SSW
16
0.4
SW
15
0.1
SW
19
0.1
S
20
0.1
SW
18
0.2
S
18
0.3
SW
18
0.3
S
16
0.3
S
16
Energy kJ
25
16
38
37
13
104
97
11
81
65
25
146
56
15
7
12
25
49
46
46
Wind waves
Height (m)
Direction
Period (s)
0.8
NNW
6
0.6
NNW
6
0.5
NW
6
0.3
NNW
6
0.2
N
5
0.1
N
5
1
N
5
1.1
N
6
1.2
NNW
6
1.7
NNW
6
1.9
NW
7
1.8
NW
7
1.6
NW
6
1.7
NW
6
3
NW
13
2.5
NW
12
2.1
NNW
7
2.5
NW
8
2.4
NW
8
1.8
NNW
7
2.3
NW
7
Energy kJ
46
25
15
6
2
1
47
72
119
204
342
303
195
219
2789
1977
428
906
614
333
569
Nearest Offshore or Glassy
Rating
(10 max)
1
2
3
3
2
3
4
2
3
4
3
4
3
3
3
3
1
3
3
3
3
Distance (km)
294
74
54
152
151
54
262
436
54
437
437
114
436
780
151
436
438
54
316
436
54
Best forecast wave conditions in Humboldt County
Rating
(10 max)
2
3
3
3
4
3
3
Best forecast wave conditions in United States
Rating
(10 max)
3
2
3
3
3
4
4
2
4
4
3
4
3
3
4
4
3
6
5
3
4
Header Global
Rating
(10 max)
9
9
8
9
5
5
5
5
5
5
5
6
4
4
5
4
4
6
5
5
5
  • Map Icons:
  • Break
  • 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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