Cape Mendocino surfForecast / CAL – Humboldt / USA

information circle48hr Weather and Surf, issued 4 pm Wednesday 20 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
8.7° C
(Which is 3.4°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 8PM is: 1.4m 12s primary swell from a West-northwest direction and 0.5m 16s secondary swell from a Southwest direction (forecast issued at 04:00pm May 20). An open ocean swell of 2.5m 9s is not directed at the surf break. The wind direction is predicted to be cross-shore.

Time (PDT) & DateWave HeightWave Period
Morning (20 May)--
Afternoon (20 May)5ft (1.5m)12s
Evening (20 May)4.5ft (1.4m)12s

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 14°C on Wed afternoon, min 9°C on Wed night). Winds decreasing (fresh winds from the N on Wed afternoon, light winds from the NW by Sat morning).

Wed
20
Thursday
21
Friday
22
Sat
23
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
2 AM
5 AM
8 AM
11 AM
Rating
(10 max)
0
0
0
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
1.5
WNW
12
1.4
WNW
12
1.4
WNW
12
1.4
WNW
11
1.3
WNW
11
1.4
NW
11
1.3
WNW
11
1.3
WNW
11
0.9
WNW
11
1.1
NW
11
0.5
SW
15
0.5
SW
15
0.5
SW
15
0.5
SW
15
0.5
SW
15
0.5
SW
18
0.5
SW
18
0.5
SW
18
0.5
SW
18
0.9
WNW
10
1.1
NW
10
0.9
WNW
10
0.9
WNW
10
0.6
SSW
16
Wave Graph
Metric surfscale
Energy kJ
647
527
509
475
372
476
382
382
207
263
115
116
116
115
112
154
154
154
152
170
225
178
168
164
Wind (km/h)
30
N
35
N
30
N
20
N
20
N
20
N
20
N
25
NNW
30
NNW
30
N
25
N
20
N
25
N
30
N
25
N
25
NNW
25
NNW
25
N
25
N
20
N
20
N
15
NNW
10
NW
15
NNW
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross-on
cross-on
cross-on
High Tide
4:18PM1.41m
2:36AM1.75m
5:15PM1.44m
3:42AM1.58m
6:08PM1.50m
4:56AM1.41m
Low Tide
9:15PM0.90m
10:08AM-0.34m
10:35PM0.85m
11:07AM-0.19m
11:58PM0.75m
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
cloud
cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:56
5:54
5:54
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:30
8:31
8:32
8:34
Temp °C
14
12
10
9
9
10
12
14
14
14
12
11
11
11
12
14
14
14
12
11
10
10
11
12
8
5
4
4
5
6
8
10
9
9
8
7
6
5
7
9
9
9
7
7
6
7
10
9
Swell 1
Height (m)
Direction
Period (s)
1.5
WNW
12
1.4
WNW
12
1.4
WNW
12
1.4
WNW
11
1.3
WNW
11
1.4
NW
11
1.3
WNW
11
1.3
WNW
11
0.9
WNW
11
1.1
NW
11
0.5
SW
15
2.5
NNW
9
3
NNW
10
0.5
SW
15
0.5
SW
15
0.5
SW
18
0.5
SW
18
0.5
SW
18
0.7
NW
10
0.9
WNW
10
1.1
NW
10
0.9
WNW
10
1.9
NNW
8
0.9
WNW
10
Energy kJ
647
527
509
475
372
476
382
382
207
263
115
1279
1559
115
112
154
154
154
112
170
225
178
476
154
Swell 2
Height (m)
Direction
Period (s)
0.4
SW
16
0.4
SW
16
0.5
SW
16
0.5
SW
16
0.5
SW
15
0.4
SW
15
0.5
SW
19
0.6
SW
19
0.5
SW
19
0.5
SW
15
0.4
S
13
0.5
SW
15
0.5
SW
15
0.4
S
13
0.4
SW
18
0.5
SW
15
0.5
SW
15
0.5
SW
15
0.5
SW
18
0.5
SW
15
0.5
SW
15
0.5
SW
15
0.9
WNW
10
0.6
SSW
16
Energy kJ
90
89
122
118
112
79
184
303
184
112
54
116
116
53
80
109
109
110
152
106
109
109
168
164
Swell 3
Height (m)
Direction
Period (s)
0.4
S
14
0.4
S
14
0.4
S
14
0.4
S
14
0.4
S
14
0.4
S
14
0.4
SW
15
0.4
SW
15
0.4
SW
15
0.4
S
13
0.2
SSW
20
0.4
S
13
0.4
S
13
0.4
S
13
0.4
S
13
0.4
S
13
0.4
S
13
0.4
S
13
0.5
SW
15
0.4
S
13
0.4
S
12
0.4
S
13
0.6
SSW
15
0.4
S
13
Energy kJ
61
59
58
57
58
58
78
79
79
55
37
54
54
52
52
51
51
51
104
50
49
50
156
52
Wind waves
Height (m)
Direction
Period (s)
2.2
NNW
8
2.3
NNW
8
2.5
NNW
9
2.5
NNW
9
2.5
NNW
9
2.3
NNW
9
2.4
NNW
9
2.3
NNW
9
2.5
NNW
9
2.5
NNW
9
2.5
NNW
9
3
NNW
10
3
NNW
10
3
NNW
9
3
NNW
9
3
NNW
9
2.5
NNW
9
2.4
NNW
9
2.2
NNW
9
2.1
NNW
8
1.8
NNW
8
Energy kJ
619
688
947
1020
977
803
873
809
1060
1037
1251
1780
1780
1615
1380
1254
1032
907
698
623
412
Nearest Offshore or Glassy
Rating
(10 max)
1
4
4
4
4
4
4
3
2
3
4
4
4
3
3
3
3
3
4
4
4
3
2
3
Distance (km)
294
54
80
41
40
40
51
244
294
51
41
41
41
51
51
191
51
51
54
41
51
40
21
219
Best forecast wave conditions in Humboldt County
Rating
(10 max)
4
4
4
4
4
3
4
4
4
3
4
3
3
4
4
4
3
3
Best forecast wave conditions in United States
Rating
(10 max)
3
4
4
4
4
4
4
3
3
3
4
4
4
3
4
3
3
3
4
4
4
3
3
3
Header Global
Rating
(10 max)
5
5
5
5
5
5
4
5
4
4
5
7
8
7
6
5
5
6
7
7
8
8
7
6
  • 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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