Cape Mendocino surfForecast / CAL – Humboldt / USA

information circle16 Day Weather and Surf, issued 10 am Sunday 17 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
10.1° C
(Which is 1.9°C colder than average for this time of year)

Best Forecast Surf Conditions for Cape Mendocino this week:

The most powerful waves expected at Cape Mendocino in the next 16 days are 2.2m 14s and forecast to arrive on Tuesday (May 19) at 2PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 9s period and expected on Sunday (May 17) at 8PM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 2PM (Tue 19th May)7ft (2.2m) 14s

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 14°C on Mon afternoon, min 9°C on Sun night). Winds decreasing (strong winds from the N on Sun morning, moderate winds from the N by Tue night).

Days 4-6 Weather Summary

Mostly dry. Very mild (max 16°C on Thu afternoon, min 10°C on Wed night). Mainly fresh winds.

Sunday
17
Monday
18
Tuesday
19
Wednesday
20
Thursday
21
Friday
22
Saturday
23
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
1
0
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
3.5
NW
8
3.5
NW
9
1.5
WNW
11
2.4
NW
9
0.8
WNW
16
1.3
WNW
15
1.7
WNW
14
1.7
WNW
13
1.8
WNW
13
1.1
WNW
12
1.4
WNW
12
1.4
WNW
11
1.2
WNW
11
0.4
SW
19
0.5
SW
16
0.5
SW
18
0.5
SW
18
1.1
NW
10
0.6
SSW
16
0.6
SSW
16
0.6
SSW
16
Wave Graph
Metric surfscale
Energy kJ
1638
1597
499
864
343
805
1143
987
1117
353
518
450
317
96
118
154
154
225
166
169
169
Wind (km/h)
45
N
40
N
30
N
30
N
35
N
30
N
30
NNW
30
N
30
N
35
N
35
N
30
N
30
NNW
30
N
35
N
30
NNW
30
N
25
NNW
30
NNW
30
N
30
N
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
High Tide
1:26PM1.39m
11:54PM2.02m
2:23PM1.39m
00:44AM1.98m
3:20PM1.39m
1:37AM1.89m
4:18PM1.41m
2:36AM1.75m
5:15PM1.44m
3:42AM1.58m
6:08PM1.50m
4:56AM1.41m
6:56PM1.57m
Low Tide
6:12PM0.79m
7:23AM-0.61m
7:05PM0.85m
8:16AM-0.57m
8:05PM0.89m
9:11AM-0.47m
9:15PM0.90m
10:08AM-0.34m
10:35PM0.85m
11:07AM-0.19m
11:58PM0.75m
12:04PM-0.03m
1:13AM0.58m
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:58
5:58
5:58
5:56
5:56
5:54
5:54
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:28
8:29
8:30
8:30
8:31
8:32
8:34
Temp °C
11
12
11
13
14
12
13
14
12
14
14
11
15
16
13
14
14
12
13
14
12
1
2
4
7
7
5
7
8
7
8
7
5
10
11
9
8
8
7
8
8
6
Swell 1
Height (m)
Direction
Period (s)
0.5
S
14
0.4
SSW
14
1.5
WNW
11
0.4
NW
18
0.8
WNW
16
1.3
WNW
15
1.7
WNW
14
1.7
WNW
13
1.8
WNW
13
1.1
WNW
12
1.4
WNW
12
1.4
WNW
11
1.2
WNW
11
0.4
SW
15
3
NNW
10
0.5
SW
18
0.5
SW
18
1.1
NW
10
0.6
SSW
16
0.6
SSW
16
0.6
SSW
16
Energy kJ
107
66
499
82
343
805
1143
987
1117
353
518
450
317
80
1900
154
154
225
166
169
169
Swell 2
Height (m)
Direction
Period (s)
0.1
SW
18
0.1
SW
18
0.4
SSW
13
0.4
SSW
13
0.3
S
16
0.8
WNW
11
0.4
SW
16
0.4
SW
16
0.4
SW
16
0.5
SW
21
0.4
SW
16
0.5
SW
15
0.6
SW
19
0.4
S
13
0.5
SW
16
0.5
SW
15
0.5
SW
15
0.5
SW
15
0.4
S
13
0.4
S
13
0.3
S
12
Energy kJ
13
12
60
58
46
163
69
69
95
224
89
112
303
55
118
110
110
107
52
52
26
Swell 3
Height (m)
Direction
Period (s)
0.1
S
20
0.1
S
18
0.1
SW
18
0.3
SW
18
0.3
SSW
13
0.4
SW
17
0.3
S
16
0.4
S
15
0.3
S
15
0.4
SW
16
0.4
S
14
0.4
S
14
0.4
SW
15
0.4
SW
19
0.4
S
13
0.4
S
13
0.4
S
13
0.4
S
12
0.4
S
13
0.1
S
21
0.2
WNW
18
Energy kJ
7
6
13
49
34
76
42
69
38
90
60
58
79
96
54
51
51
49
52
9
31
Wind waves
Height (m)
Direction
Period (s)
3.5
NW
8
3.5
NW
9
2.5
NNW
9
2.4
NW
9
2.5
NW
8
3
NNW
9
2.4
NNW
8
2
NNW
8
2.1
NNW
8
2.5
NNW
8
2.5
NNW
9
2.5
NNW
9
2.4
NNW
9
3
NNW
9
3
NNW
9
3
NNW
9
2.3
NNW
8
3
NNW
9
3
NNW
9
3.5
NNW
10
Energy kJ
1638
1597
1097
864
860
1274
771
459
575
989
987
1050
893
1473
1495
1226
748
1528
1698
2525
Nearest Offshore or Glassy
Rating
(10 max)
4
1
3
2
1
4
4
2
5
2
1
3
3
3
3
3
3
4
3
3
4
Distance (km)
329
438
54
316
438
54
262
436
52
231
294
45
219
51
54
188
80
51
170
51
51
Best forecast wave conditions in Humboldt County
Rating
(10 max)
3
4
5
3
3
3
4
3
4
Best forecast wave conditions in United States
Rating
(10 max)
6
4
5
4
2
4
4
3
5
4
3
3
3
3
3
3
3
4
3
3
4
Header Global
Rating
(10 max)
6
4
5
4
4
4
4
4
5
4
5
5
4
4
5
5
4
5
4
4
4
  • 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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