Cape Mendocino Surf Break

Lat Long: 40.42° N 124.40° W

Issued: 10 pm 03 Jul 2026 (local time)

Forecast update in  hr  min

Today's Cape Mendocino sea temperature is
9.6° C

3.6°C colder than average for this time of year

Cape Mendocino surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Cape Mendocino surf forecast from 4 Jul 2026:

  • Most powerful swell: Wednesday 8 Jul, 5PM (local time) - 3.5ft (1.1m), 17s period, SSW swell with 717 kJ wave energy.

Best Forecast Surf Conditions for Cape Mendocino this week:

The most powerful waves expected at Cape Mendocino in the next 16 days are 1.1m 17s and forecast to arrive on Wednesday (Jul 08) at 5PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.2m 7s period and expected on Thursday (Jul 09) at 11AM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 5PM (Wed 8th Jul)3.5ft (1.1m) 17s

Table - best surf conditions forecast for Cape Mendocino over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Alright folks, Rusty here. Let's take a look at what the next couple weeks have in store for us.

Overall, it’s a pretty quiet and frustrating stretch for surf at Cape Mendocino. The first week is a write-off with poor conditions and messy wind, so you might as well save the wax. There’s a long gap of nothing much to recommend until things start to look a little more promising right at the very end of the forecast.

We kick off with Saturday, July 4th, but honestly, don’t bother getting wet. A northwest wind howling at 16 mph is making a mess of the 6 ft NW swell. The period is a short, weak 7 seconds, and the combined energy is a weak 566 – just a jumbly, cross-shore chop. It’s poor all day, and that theme continues right through Sunday and Monday. The swell tries to get some muscle, hitting 7 ft on Sunday afternoon (energy 1086), but the wind keeps it chopped up and ugly. Monday brings a confusing mix of leftover NW energy and a new 3 ft, 16-second groundswell from the SSW, but the cross-onshore keeps it a no-go.

Tuesday the 7th through to the middle of the following week is a desert. We’re looking at tiny 2 ft to 4 ft swells, mostly from the SSW, with persistent 16 to 22 mph cross-shore winds. The energy is moderate at best, but the wind is just too strong to produce anything but lumpy, poor surf. You can forget about the break until the 14th.

There’s a tiny flicker of hope around Wednesday the 15th of July. We get a new, very long-period 2 ft swell from the WNW with a period of 21 seconds and a combined energy of 505. That’s that deep ocean groundswell. The wind is a light cross-shore at 9 mph, so it will be clean. For a spot like Cape Mendocino that’s exposed to the SW, this WNW direction isn’t ideal, and the size is tiny, but for a patient surfer on a log, those long-period lines might offer a few peelers. It’s a very marginal, blip of a session.

The best of a bad run, and the only true standout in this whole 16-day outlook, looks to be Thursday morning, July 16th. Cape Mendocino should see a slight pulse from the WNW again, with 3 ft of swell at an 18-second period. The combined energy is 589. But the key detail is the wind: a light 6 mph from the NW. That's a light cross-onshore, but it's light enough to keep things mostly smooth. It’s not going to be pumping, and the 3 ft is small, but it might just be the cleanest window we get. For confident surfers willing to work for a few small, long-period waves, this is the morning to try.

After that, the forecast turns windy again and fades out. The Saturday the 18th brings another attempt at a 5 ft NW swell, but the 8-second period and cross-onshore wind mean it’s back to the choppy, messy stuff.

So, bottom line: it’s a grim 10 days, then a couple of tiny, clean windows around the 15th and 16th. Don't hold your breath for anything epic.

Rusty.

Short Range Forecast

Mostly dry. Very mild (max 16°C on Sat afternoon, min 11°C on Fri night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Very mild (max 15°C on Tue afternoon, min 10°C on Tue night). Mainly fresh winds.

Saturday
4
Sunday
5
Monday
6
Tuesday
7
Wednesday
8
Thursday
9
Fri
10
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Rating
(10 max)
0
0
0
0
0
2
0
1
1
2
1
0
3
0
1
0
0
0
0
0
0
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)
0.8
SSW
16
1.8
NW
7
1.9
NW
7
1.4
NW
8
1.5
NW
8
2.1
NW
8
0.6
SSW
18
2.1
NW
8
0.8
SSW
16
1.4
NW
11
0.8
SSW
20
0.9
SSW
19
1
SSW
18
0.9
SSW
18
1.1
SSW
17
1
SSW
16
1.1
SSW
16
0.9
SSW
16
0.9
SSW
15
0.9
SSW
15
0.9
SSW
15
Wave Graph
Metric surfscale
Energy kJ
288
331
372
235
311
557
207
557
330
476
485
643
651
491
717
539
643
441
372
372
367
Wind (km/h)
20
N
25
NNW
25
NNW
20
NNW
20
NNW
20
NNW
20
N
20
NNW
20
NNW
20
N
25
NNW
25
N
25
NNE
25
N
30
N
25
N
35
N
30
N
30
N
30
N
30
N
Wind State
cross
cross
cross
cross
cross-on
cross
cross
cross-on
cross
cross
cross
cross
cross-off
cross
cross
cross
cross
cross
cross
cross
cross
High Tide
1:47AM1.58m
3:49PM1.47m
2:35AM1.44m
4:21PM1.54m
3:33AM1.30m
4:54PM1.62m
4:47AM1.15m
5:32PM1.70m
6:21AM1.05m
6:14PM1.80m
8:06AM1.05m
7:02PM1.89m
9:33AM1.14m
7:54PM1.98m
Low Tide
8:32PM0.92m
8:59AM-0.06m
9:27PM0.85m
9:35AM0.06m
10:28PM0.74m
10:14AM0.21m
11:35PM0.58m
10:58AM0.39m
00:42AM0.38m
11:48AM0.58m
1:46AM0.16m
12:47PM0.74m
2:45AM-0.05m
1:51PM0.86m
part cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
cloud
cloud
part cloud
part cloud
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:52
5:52
5:52
5:54
5:54
5:54
5:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:51
8:51
8:51
8:50
8:50
8:50
8:49
8:49
 mm
Temp °C
13
15
16
14
14
15
13
14
14
13
14
15
13
14
15
13
14
15
12
15
16
Feels °C
9
11
11
10
11
12
9
11
11
10
10
11
9
9
10
9
8
9
6
10
11
Swell 1
Height (m)
Direction
Period (s)
0.8
SSW
16
0.5
SW
13
0.6
SSW
14
1.4
NW
8
1.6
NNW
8
0.8
SSW
18
0.8
WNW
12
0.8
WNW
12
0.8
SSW
16
1.4
NW
11
0.8
SSW
20
0.9
SSW
19
1
SSW
18
0.9
SSW
18
1.1
SSW
17
1
SSW
16
1.1
SSW
16
0.9
SSW
16
0.9
SSW
15
0.9
SSW
15
0.9
SSW
15
Energy kJ
288
88
138
235
280
399
184
177
330
476
485
643
651
491
717
539
643
441
372
372
367
Swell 2
Height (m)
Direction
Period (s)
0.4
WNW
14
0.4
WNW
13
0.4
WNW
13
1.4
NNW
8
1.5
NW
8
0.5
WNW
13
0.6
SSW
18
0.7
SSW
17
0.8
WNW
12
0.7
SSW
20
0.7
SW
16
0.4
SSW
14
0.8
WNW
10
0.6
SW
15
0.9
NW
9
0.5
S
19
0.5
S
18
0.7
NW
8
0.8
WNW
9
Energy kJ
73
69
66
264
311
99
207
258
171
336
258
81
125
171
125
188
160
72
90
Swell 3
Height (m)
Direction
Period (s)
0.2
SSW
21
0.4
SSW
15
0.4
SSW
20
0.7
SSW
14
0.6
SSW
14
0.4
NW
11
0.5
S
13
0.5
SSW
21
0.5
SSW
21
0.7
SW
16
0.2
S
12
0.2
S
8
0.7
SSW
15
0.2
S
11
0.3
S
20
Energy kJ
45
78
149
186
136
31
87
260
260
261
11
5
191
9
68
Wind waves
Height (m)
Direction
Period (s)
1.5
NNW
7
1.8
NW
7
1.9
NW
7
2
NNW
8
2.1
NW
8
2.1
NNW
8
2.1
NW
8
1.9
NW
8
1
N
7
1.7
NW
7
1.6
NW
7
0.9
NNW
6
1.4
NW
10
1.3
NNW
6
1.6
NW
7
2.2
NW
7
1.9
NW
7
1.8
NW
7
2
NNW
7
1.9
NNW
7
Energy kJ
250
331
372
502
557
573
557
473
109
287
244
57
384
127
247
450
373
330
428
342
Nearest Offshore or Glassy
Rating
(10 max)
2
1
2
3
3
2
4
1
1
4
2
3
4
2
3
2
3
2
3
4
4
Distance (km)
41
149
51
40
219
151
42
151
437
51
151
436
51
149
436
68
334
437
42
262
54
Best forecast wave conditions in Humboldt County
Rating
(10 max)
3
2
3
4
4
4
2
3
4
Best forecast wave conditions in United States
Rating
(10 max)
3
2
2
3
3
2
4
2
2
4
4
3
4
4
3
4
4
2
4
4
4
Header Global
Rating
(10 max)
5
5
5
9
6
5
6
8
7
5
5
9
8
9
9
5
7
5
4
8
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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