Cape Mendocino Surf Break

Lat Long: 40.42° N 124.40° W

Cape Mendocino Surf Forecast and Surf Report

Issued: 4 pm 14 Aug 2026 (local time)

Forecast update in  hr  min

Today's Cape Mendocino sea temperature is
12.0° C
2.3° 

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 15 Aug 2026:

  • Most powerful swell: Saturday 15 Aug, 11AM (local time) - 3.5ft (1.0m), 17s period, SSW swell with 629 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 1.0m 17s and forecast to arrive on Saturday (Aug 15) at 11AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.1m 8s period and expected on Wednesday (Aug 19) at 8AM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
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, let’s get straight to it. This forecast is a tough one for Cape Mendocino. You’re going to be waiting a long time for anything decent.

The first surf shows up on Friday morning, August 14th, but it’s a letdown. A 2ft SW swell with a long 15-second period, but the combined energy is only 536 – that’s weak. The water is at 54°F, which is 4°F colder than normal, so it’s going to feel cold. The wind is a light cross-onshore from the NW at 6 mph, so it’s not clean. It’s marginal at best.

From there, it’s a rough patch. The rest of August 15th and 16th, and all through the next week, the conditions are poor. The swell stays small, mostly 2ft to 3ft, with moderate, messy cross-shore winds. The energy drops well below 500, and the forecasts call it “poor surf conditions” repeatedly. There’s a long stretch of nothing really worth paddling out for.

Then, around Monday, August 24th, we see a change. The swell jumps to 6ft from the NW, but the period is short – only 7 to 8 seconds. That’s a wind-driven, choppy swell, and with the moderate cross-shore winds, it’s going to be junky. The energy (736) is moderate, but it’s not clean. This setup looks more interesting for kite surfing than for paddle surfing.

The best chance comes near the end of the forecast. On Wednesday afternoon, August 26th, we get a 4ft SSE swell with a 16-second period, and combined energy of 1055 – that’s strong energy. The wind is a gentle cross-shore from the NNW at 9 mph, so it’s manageable. This is the best option on offer, but it’s still only a marginal call. Thursday morning, August 27th, has a similar 4ft S swell, but the wind is cross-onshore, so it’s a bit choppier.

So, the standout is Wednesday afternoon, August 26th, at Cape Mendocino. That 4ft SSE swell, with a long period and gentle cross-shore wind, is your best bet. The rest of the two weeks is a write-off. Stay patient.

Rusty.

Short Range Forecast

Mostly dry. Very mild (max 16°C on Fri afternoon, min 12°C on Sat night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Very mild (max 17°C on Wed afternoon, min 12°C on Mon night). Wind will be generally light.

Fri
14
Saturday
15
Sunday
16
Monday
17
Tuesday
18
Wednesday
19
Thursday
20
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
2
1
1
2
0
1
0
0
0
1
0
0
0
0
0
1
1
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.5
SSW
19
0.7
SSW
18
1
SSW
17
1
SSW
16
0.9
SSW
16
1
SSW
16
1
SSW
16
0.9
SSW
15
0.9
SSW
14
0.9
SSW
15
0.9
SSW
15
0.7
SSW
14
0.8
SSW
15
0.7
SSW
16
0.9
WNW
12
0.9
SSW
15
1.1
WNW
12
0.8
SSW
14
0.8
SSW
14
0.8
SSW
14
Wave Graph
Metric surfscale
Energy kJ
212
280
629
505
407
519
512
334
330
334
334
178
249
226
217
309
317
236
226
236
Wind (km/h)
20
N
15
NNE
20
NNW
25
N
15
NNE
15
NNW
25
N
15
N
20
NNW
25
NNW
20
N
25
N
25
N
20
N
25
NNW
25
N
20
N
20
N
25
N
20
N
Wind State
cross
cross-off
cross
cross
cross-off
cross-on
cross
cross
cross-on
cross
cross-off
cross
cross
cross
cross
cross
cross
cross
cross
cross
High Tide
1:08AM1.78m
2:09PM1.74m
2:00AM1.60m
2:43PM1.75m
2:58AM1.41m
3:18PM1.74m
4:06AM1.25m
3:55PM1.71m
5:35AM1.14m
4:39PM1.68m
7:24AM1.13m
5:31PM1.65m
Low Tide
7:28PM0.49m
7:49AM0.06m
8:19PM0.43m
8:26AM0.26m
9:14PM0.38m
9:04AM0.47m
10:12PM0.35m
9:47AM0.67m
11:15PM0.32m
10:37AM0.85m
00:23AM0.29m
11:45AM0.99m
1:32AM0.24m
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clear
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part cloud
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clear
clear
part cloud
clear
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<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:28
6:28
6:30
6:31
6:31
6:31
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:15
8:15
8:14
8:12
8:10
8:08
8:07
 mm
Temp °C
16
15
16
16
14
16
16
14
15
15
13
15
16
14
16
17
14
15
16
14
Feels °C
14
13
13
12
10
14
13
10
13
12
10
11
12
11
12
13
11
12
13
11
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  • 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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