Cape Mendocino Surf Break

Lat Long: 40.42° N 124.40° W

Cape Mendocino Surf Forecast and Surf Report

Issued: 10 am 08 Aug 2026 (local time)

Forecast update in  hr  min

Today's Cape Mendocino sea temperature is
11.2° C
3.0° 

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 8 Aug 2026:

  • Best quality surf: Friday 14 Aug, 5AM (local time) - 2ft (0.6m), 16s period, SW swell with cross-offshore winds.
  • Most powerful swell: Saturday 15 Aug, 11AM (local time) - 3.5ft (1.0m), 17s period, SSW swell with 576 kJ wave energy.
  • Next surfable swell (1★+): Friday 14 Aug, 5AM (local time) - 2ft (0.6m), 16s period with SW 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 Friday (Aug 14) at 5AM. The primary swell is predicted to be 0.6m and 16s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Cape Mendocino in the next 16 days are 1.0m 17s and forecast to arrive on Saturday (Aug 15) at 11AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 10s period and expected on Wednesday (Aug 12) at 11PM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Fri 14th Aug)2ft (0.6m) 16s
Best Surf 5AM (Fri 14th Aug)2ft (0.6m) 16s
Most Powerful11AM (Sat 15th Aug)3.5ft (1.0m) 17s

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


The Lowdown

Alright, Rusty here, let’s talk about what’s coming up.

Honestly, right out of the gate, it’s pretty grim. There’s a solid run of poor surf conditions lasting all through the first week and into the middle of the following week. The wind is a constant problem, mostly a fresh cross-shore breeze howling at 19 mph, turning the ocean into lumpy cross-chop. The water is also *much* colder than normal at 52°F – that’s a huge anomaly of -5°F, so you’ll be wanting the thickest wetsuit you’ve got.

The first real glimmer of something rideable shows up on Saturday, the 15th of August. Cape Mendocino starts to see a modest bump in swell, about 3 ft from the SSW, with a solid 16-second period. The wind finally eases to a light breeze, but it’s still cross-onshore, so it’s only marginal. The combined energy climbs to 633 (moderate), but it’s not a standout.

The best of the whole outlook comes on Wednesday the 19th. We get a proper pulse of WNW groundswell, pushing 6 ft with a period of 12 seconds. The energy jumps right up to 1291 (strong). The wind is cross-shore but only a gentle to moderate breeze, so it won’t be completely trashed. This is the pick of the fortnight – it has size and some push, but that 6 ft is getting into expert territory for the average punter, especially at a fairly consistent spot like Cape Mendocino. It’s a point break setup, so that long-period swell should wrap in nicely.

After that, it fades back into mediocrity. Thursday the 20th holds some size around 5 ft from the WNW, but the wind picks up again and the period drops off. By the weekend of the 22nd, it’s back to poor conditions and choppy mess.

If you’re a kiter, those early days with 19 mph cross-shore winds and lumpy sea state look far more interesting than they do for a paddle surfer. For the rest of us, aim for that Wednesday the 19th and hope the forecast holds.

Rusty.

Short Range Forecast

Mostly dry. Very mild (max 17°C on Sat afternoon, min 12°C on Sat night). Mainly fresh winds.

Days 4-6 Weather Summary

Mostly dry. Very mild (max 17°C on Tue morning, min 12°C on Thu night). Winds decreasing (fresh winds from the N on Tue night, light winds from the NNE by Thu night).

Saturday
8
Sunday
9
Monday
10
Tuesday
11
Wednesday
12
Thursday
13
Friday
14
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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.6
SSW
17
0.6
SSW
18
0.5
SSW
16
0.7
SSW
16
0.6
SSW
16
0.6
SSW
15
0.6
SSW
14
0.6
SSW
14
0.4
SW
20
0.4
SW
19
0.4
SW
18
0.6
SSW
18
0.6
SSW
18
0.5
SW
17
0.6
SSW
16
0.6
SW
16
0.6
SW
16
0.6
SW
16
0.6
SSW
15
0.5
SSW
19
0.6
SSW
18
Wave Graph
Metric surfscale
Energy kJ
235
240
146
263
196
167
165
163
134
95
115
209
207
137
173
206
201
193
152
212
249
Wind (km/h)
30
N
25
N
25
N
30
NNW
30
N
30
N
30
N
25
N
30
N
30
NNW
30
N
30
N
35
N
30
N
35
N
25
NNW
25
N
15
NNW
10
NW
10
NNW
10
NNE
Wind State
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross-on
cross-on
cross-on
cross-off
High Tide
9:34AM1.24m
7:36PM1.98m
10:27AM1.35m
8:39PM2.04m
11:10AM1.45m
9:39PM2.09m
11:49AM1.53m
10:34PM2.09m
12:26PM1.60m
11:26PM2.05m
1:02PM1.66m
00:17AM1.94m
1:36PM1.71m
1:08AM1.78m
Low Tide
1:45PM1.00m
3:27AM-0.20m
2:55PM0.97m
4:20AM-0.29m
3:57PM0.89m
5:08AM-0.34m
4:52PM0.79m
5:51AM-0.32m
5:45PM0.68m
6:32AM-0.24m
6:36PM0.58m
7:11AM-0.11m
7:28PM0.49m
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
part cloud
part cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:20
6:22
6:22
6:24
6:24
6:26
6:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:23
8:22
8:22
8:20
8:19
8:17
8:15
 mm
Temp °C
16
17
15
16
17
14
17
17
15
17
17
15
17
17
15
16
16
15
15
15
13
Feels °C
11
12
11
11
12
10
12
12
11
12
12
11
12
12
11
12
12
12
14
14
12
  • 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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