Cape Mendocino surfForecast / CAL – Humboldt / USA

information circle16 Day Weather and Surf, issued 10 pm Friday 29 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
9.6° C
(Which is 2.8°C colder than average for this time of year)

Cape Mendocino surf forecast from 30 May 2026:

  • Best quality surf: Sunday 31 May, 8AM (local time) - 10ft (3.0m), 9s period, NW swell with cross-shore winds.
  • Most powerful swell: Sunday 31 May, 8AM (local time) - 10ft (3.0m), 9s period, NW swell with 1,270 kJ wave energy.
  • Next surfable swell (1★+): Sunday 31 May, 8AM (local time) - 10ft (3.0m), 9s period with NW swell.

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 (May 31) at 8AM. The primary swell is predicted to be 3.0m and 9s period with a secondary swell of 0.5m and 21s. Another secondary swell of 0.4m and 18s 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 9s and forecast to arrive on Sunday (May 31) at 8AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 9s period and expected on Sunday (May 31) at 11PM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Sun 31st May)10ft (3.0m) 9s
Best Surf 8AM (Sun 31st May)10ft (3.0m) 9s
Most Powerful 8AM (Sun 31st May)10ft (3.0m) 9s

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 morning, min 8°C on Sat night). Mainly fresh winds.

Days 5-7 Weather Summary

Mostly dry. Very mild (max 16°C on Wed morning, min 10°C on Mon night). Wind will be generally light.

Saturday
30
Sunday
31
Monday
1
Tuesday
2
Wednesday
3
Thursday
4
Fri
5
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Rating
(10 max)
1
0
0
0
!
!
1
1
0
1
1
1
3
1
1
2
0
1
3
2
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.6
WNW
13
1.3
WNW
12
1.3
WNW
12
1.5
WNW
11
3
NW
9
3
NW
9
0.8
SSW
20
1
SSW
18
0.9
SSW
18
1
SSW
18
1
SSW
16
1
SSW
16
1
SSW
16
0.9
SSW
16
0.9
SSW
15
1.9
WNW
10
0.9
SSW
18
1.3
SSW
19
1
SSW
19
1.4
SSW
17
1.4
SSW
18
Wave Graph
Metric surfscale
Energy kJ
824
508
436
533
1228
1247
485
637
497
637
566
539
525
430
353
678
503
1123
766
1146
1159
Wind (km/h)
20
N
35
N
35
N
30
N
30
NNW
30
N
20
N
25
NNW
25
N
20
N
25
NNW
25
N
15
NNE
20
NNW
25
N
20
N
30
N
30
N
20
NNE
15
NNW
15
NNW
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross-off
cross
cross
cross
cross
cross
cross-off
cross
cross-on
High Tide
10:24PM1.76m
12:47PM1.26m
10:55PM1.75m
1:30PM1.27m
11:28PM1.73m
2:11PM1.27m
00:03AM1.70m
2:50PM1.27m
00:41AM1.66m
3:30PM1.27m
1:21AM1.60m
4:09PM1.29m
2:04AM1.52m
4:47PM1.32m
Low Tide
5:53AM-0.24m
5:23PM0.89m
6:27AM-0.27m
6:02PM0.94m
7:01AM-0.27m
6:40PM0.98m
7:37AM-0.26m
7:19PM1.00m
8:14AM-0.23m
8:03PM1.01m
8:53AM-0.18m
8:55PM1.01m
9:35AM-0.12m
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
clear
clear
part cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:50
5:50
5:48
5:48
5:48
5:48
5:48
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:38
8:39
8:39
8:40
8:42
8:42
8:43
8:44
Temp °C
11
11
12
10
12
13
11
14
14
12
13
14
12
16
15
13
13
14
11
14
15
7
4
5
3
6
7
6
9
9
7
9
10
8
12
10
8
8
9
6
10
11
Swell 1
Height (m)
Direction
Period (s)
1.6
WNW
13
1.3
WNW
12
1.3
WNW
12
1.5
WNW
11
0.5
SSW
21
0.8
SSW
20
2.5
NNW
9
1.1
WNW
10
0.9
WNW
10
1.2
WNW
9
1
SSW
16
1
SSW
16
1
SSW
16
0.9
SSW
16
1.1
W
11
0.8
SSW
18
1.1
W
10
1.3
SSW
19
1.3
WNW
11
1.4
SSW
17
1.4
SSW
18
Energy kJ
824
508
436
533
260
455
1238
223
161
211
566
539
525
430
291
368
216
1123
430
1146
1159
Swell 2
Height (m)
Direction
Period (s)
0.5
SSW
14
0.5
SSW
14
0.4
SSW
14
0.4
SSW
13
0.4
SSW
18
0.4
SW
16
1.1
WNW
10
1
SSW
18
0.9
SSW
18
1
SSW
18
0.1
S
14
1
WNW
8
0.9
NW
6
0.8
W
12
0.9
SSW
15
0.7
SW
14
0.9
SSW
18
1.2
W
11
1
SSW
19
1.4
WNW
11
1.3
WNW
11
Energy kJ
115
105
73
70
124
67
240
637
497
637
4
128
60
171
353
211
503
377
766
455
373
Swell 3
Height (m)
Direction
Period (s)
0.1
S
26
0.2
SSW
19
0.2
SSW
24
0.4
SSW
22
0.3
SSW
13
0.3
SSW
13
0.8
SSW
20
0.1
S
13
0.4
SSW
15
0.1
S
13
0.1
S
12
0.1
S
15
0.6
WNW
8
0.4
SSW
20
0.5
SSW
19
0.3
SSW
22
0.7
SW
14
0.1
S
12
0.8
SSW
16
0.1
S
13
0.1
S
13
Energy kJ
13
37
54
186
33
32
485
4
87
3
3
4
46
149
214
91
211
3
288
3
3
Wind waves
Height (m)
Direction
Period (s)
1.9
NNW
8
2.2
NNW
8
2.1
NNW
8
2.4
NNW
8
3
NW
9
3
NW
9
2.2
NNW
9
2
NNW
8
1.4
NNW
8
1.5
NW
7
0.9
NNW
7
0.6
NW
6
0.9
NW
5
1.9
WNW
10
1.7
NNW
6
1.5
NNW
6
1.3
NNW
6
0.9
NNW
6
0.6
NNW
5
Energy kJ
458
627
506
751
1228
1247
764
560
204
206
79
30
37
678
213
181
140
47
17
Nearest Offshore or Glassy
Rating
(10 max)
3
2
2
4
4
2
4
3
3
4
2
1
3
2
2
3
4
2
4
4
3
Distance (km)
68
316
436
40
262
437
41
244
54
51
151
151
0
151
438
59
262
437
51
83
73
Best forecast wave conditions in Humboldt County
Rating
(10 max)
3
4
4
3
4
3
3
4
4
3
Best forecast wave conditions in United States
Rating
(10 max)
4
4
3
4
4
3
4
4
3
4
3
3
4
3
3
3
4
3
4
4
3
Header Global
Rating
(10 max)
5
7
7
6
5
5
4
4
5
6
4
6
5
5
4
4
9
5
5
9
8
  • 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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