Cape Mendocino surfForecast / CAL – Humboldt / USA

information circle48hr Weather and Surf, issued 4 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)

How big are the waves at Cape Mendocino today?

The current surf forecast for Cape Mendocino at 11AM is: 0.5m 14s primary swell from a South direction and 0.1m 18s secondary swell from a Southwest direction (forecast issued at 04:00am May 17). An open ocean swell of 3.5m 8s is not directed at the surf break. The wind direction is predicted to be cross-shore.

Time (PDT) & DateWave HeightWave Period
Morning (17 May)11ft (3.5m)8s
Afternoon (17 May)11ft (3.5m)8s
Evening (17 May)5ft (1.6m)11s

Table - waves today at Cape Mendocino. (Swell directed towards the surf break)


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 Sun night). Winds decreasing (strong winds from the NNW on Sun afternoon, moderate winds from the N by Tue night).

Sunday
17
Monday
18
Tuesday
19
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
1
1
1
0
0
0
1
1
1
1
1
1
1
2
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
3.5
NW
8
3.5
NW
8
3.5
NW
8
0.5
S
14
3.5
NW
8
3.5
NW
9
1.3
WNW
11
2
WNW
11
1.5
WNW
11
1.4
WNW
11
1.6
NW
9
2.4
NW
9
2.4
NW
8
1.5
WNW
9
1
WNW
16
1.3
WNW
16
1.3
WNW
15
1.6
WNW
15
1.6
WNW
14
1.7
WNW
14
1.7
WNW
14
1.7
WNW
13
1.7
WNW
13
1.8
WNW
13
Wave Graph
Metric surfscale
Energy kJ
1740
1695
1638
107
1489
1597
427
903
499
441
408
885
844
395
539
778
805
1024
996
1143
1064
987
958
1117
Wind (km/h)
45
N
45
N
45
N
45
N
45
NNW
40
N
35
N
30
N
30
N
30
N
25
N
30
N
30
N
35
N
30
N
25
N
30
N
30
N
30
N
30
N
30
N
30
N
25
N
20
N
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
High Tide
11:09PM2.01m
1:26PM1.39m
11:54PM2.02m
2:23PM1.39m
00:44AM1.98m
3:20PM1.39m
Low Tide
6:34AM-0.58m
6:12PM0.79m
7:23AM-0.61m
7:05PM0.85m
8:16AM-0.57m
8:05PM0.89m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:58
5:58
5:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:28
8:29
8:30
Temp °C
10
10
10
11
12
13
12
10
10
9
11
13
14
13
12
11
10
10
11
14
15
14
12
11
1
1
1
1
2
4
5
4
4
3
6
7
8
6
5
6
4
4
5
8
9
8
7
7
Swell 1
Height (m)
Direction
Period (s)
0.6
SSW
14
0.5
SSW
14
0.5
S
14
0.5
S
14
0.5
S
14
0.4
SSW
14
1.3
WNW
11
2
WNW
11
1.5
WNW
11
1.4
WNW
11
1.6
NW
9
0.4
NW
18
0.5
WNW
18
1.5
WNW
9
1
WNW
16
1.3
WNW
16
1.3
WNW
15
1.6
WNW
15
1.6
WNW
14
1.7
WNW
14
1.7
WNW
14
1.7
WNW
13
1.7
WNW
13
1.8
WNW
13
Energy kJ
165
120
107
107
104
66
427
903
499
441
408
82
178
395
539
778
805
1024
996
1143
1064
987
958
1117
Swell 2
Height (m)
Direction
Period (s)
0.1
S
20
0.1
SW
18
0.1
SW
18
0.1
SW
18
0.1
SW
18
0.1
SW
18
0.4
SSW
14
0.4
SSW
13
0.4
SSW
13
0.4
SSW
13
1
WNW
11
0.4
SSW
13
0.3
SSW
13
0.8
WNW
16
0.3
S
16
0.5
NW
11
0.9
WNW
11
1.3
WNW
10
1.4
NW
10
1
WNW
9
0.4
SW
16
0.4
SW
16
0.4
WNW
8
0.4
SW
16
Energy kJ
7
13
13
13
12
12
62
60
60
59
234
58
34
343
46
59
219
327
363
180
69
69
26
96
Swell 3
Height (m)
Direction
Period (s)
0.1
S
20
0.1
S
20
0.1
S
19
0.1
S
18
0.1
SW
18
0.2
S
18
0.1
SW
18
0.2
SSW
18
0.4
SSW
13
0.3
SW
18
0.4
NW
14
0.3
S
16
0.3
WNW
13
0.3
SW
17
0.4
SW
17
0.4
SW
17
0.4
SW
16
0.4
SW
16
0.4
S
15
0.4
S
15
0.4
SW
16
0.3
S
15
Energy kJ
7
7
7
6
12
25
13
32
59
49
52
46
35
45
76
70
69
69
71
69
96
39
Wind waves
Height (m)
Direction
Period (s)
3.5
NW
8
3.5
NW
8
3.5
NW
8
3.5
NW
8
3.5
NW
8
3.5
NW
9
3.5
NNW
9
3
NNW
9
3
NNW
9
2.5
NNW
8
1.8
NNW
9
2.4
NW
9
2.4
NW
8
2.1
NNW
8
3
NNW
9
3
NNW
9
3
NNW
9
2.5
NNW
9
2.3
NNW
8
2.2
NNW
8
2.3
NNW
8
2.1
NNW
8
1.8
NNW
7
1.9
NNW
8
Energy kJ
1740
1695
1638
1547
1489
1597
1693
1347
1178
891
516
885
844
578
1216
1469
1514
998
722
597
654
493
363
406
Nearest Offshore or Glassy
Rating
(10 max)
4
4
2
4
4
4
5
3
3
3
4
2
2
1
2
4
4
4
4
4
3
3
4
4
Distance (km)
211
114
151
334
436
437
437
80
54
54
40
231
436
436
234
80
54
54
54
262
316
437
109
59
Best forecast wave conditions in Humboldt County
Rating
(10 max)
4
3
3
3
4
4
4
4
4
4
Best forecast wave conditions in United States
Rating
(10 max)
7
4
8
6
4
4
5
6
5
4
5
4
4
3
4
4
4
4
4
4
3
3
4
4
Header Global
Rating
(10 max)
7
4
8
6
4
4
5
6
5
4
5
4
5
4
4
4
4
4
4
4
4
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)
Map placeholder

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