
Surf Forecasts:
Cape Mendocino surf forecast from 31 Jul 2026:
- Best quality surf: Wednesday 5 Aug, 5AM (local time) - 1.5ft (0.4m), 14s period, SW swell with cross-offshore winds.
- Most powerful swell: Wednesday 5 Aug, 11AM (local time) - 8ft (2.4m), 9s period, NW swell with 968 kJ wave energy.
- Next surfable swell (1★+): Wednesday 5 Aug, 5AM (local time) - 1.5ft (0.4m), 14s 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 Wednesday (Aug 05) at 5AM. The primary swell is predicted to be 0.4m and 14s 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 2.4m 9s and forecast to arrive on Wednesday (Aug 05) 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 9s period and expected on Sunday (Aug 02) at 11PM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Wed 5th Aug) | 1.5ft (0.4m) 14s |
| Best Surf | 5AM (Wed 5th Aug) | 1.5ft (0.4m) 14s |
| Most Powerful | 11AM (Wed 5th Aug) | 8ft (2.4m) 9s |
Table - best surf conditions forecast for Cape Mendocino over the next 16 days.
The Lowdown
Alright folks, Rusty here. Gotta be straight with you, the outlook for Cape Mendocino over the next couple of weeks is a tough one to sell. We're looking at a long, frustrating stretch of mostly poor conditions. Don't expect much in the way of clean, ridable waves.
We start off with a bit of swell on Thursday the 30th – a 3ft SSW groundswell with a long 15-second period. The energy is moderate at 686, but that cross-shore wind at 19 mph is going to chop it all up and turn it into a lumpy mess. The water is sitting at about 55°, which is a touch cooler than average for the time of year. Honestly, it's a write-off.
That pretty much sets the tone. From there through to the beginning of August, we've got a few marginal windows on the Friday and Saturday, but it’s all cross-shore wind and small, weak swell. The best of a bad bunch might be Friday afternoon with a 5ft NW windswell, but it’s a short 9-second period and still blowing 16 mph cross-shore. Not worth getting excited about.
Then the real downer hits. From Saturday the 1st of August all the way through to Tuesday the 5th, we've got a solid gap of several days where the surf quality is just poor. Swell heights are barely breaking 2ft, and the wind is up, often over 19 mph, making for messy, lumpy conditions. It’s not even worth thinking about.
Now, there is one flicker of hope. On Wednesday the 6th of August, the morning shows a chunky 8ft NW swell rolling in. The energy jumps way up to 1035, which is strong. But the wind, while light at 6 mph, is coming from the SSW, making it a cross-onshore breeze. That’s going to put a bit of a bump on the face and the period is a short 9 seconds, so it’ll be a bit crumbly. It’s still a big, powerful swell so that’s one for the experienced crew only – way too much for beginners. This is the closest thing to a standout in the whole run, but the wind is a real problem.
Following that, we go straight back into the doldrums. From Thursday the 7th through to the end of the forecast on the 14th, it’s another long run of tiny surf and fresh cross-shore winds. Even when the groundswell gets some long 21-second period on the Friday morning, the swell is only 1ft and it’s blown out. The conditions are just not cooperating.
Bottom line, if you are desperate, the Wednesday the 6th morning window with that 8ft NW swell is the only real look, but even then the wind is less than ideal. Otherwise, it’s a blank run. For a spot like this that is fairly consistent, a run this poor is a little unusual, but these things happen. Don’t hold your breath.
Rusty.
Short Range ForecastMostly dry. Very mild (max 17°C on Fri afternoon, min 12°C on Thu night). Winds increasing (light winds from the NNE on Thu night, strong winds from the N by Sun morning). | Days 5-7 Weather SummaryMostly dry. Very mild (max 19°C on Tue morning, min 13°C on Sun night). Winds decreasing (strong winds from the N on Sun afternoon, light winds from the SE by Tue night). | |||||||||||||||||||
Thu 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | ||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | ||||||||||||||||||||
Wave Height (m) Direction Period (s) | SSW 15 | S 15 | SSW 14 | NW 9 | SSW 14 | SSW 14 | SSW 14 | SW 14 | SW 14 | SW 18 | SW 18 | SW 13 | SW 13 | SW 16 | SW 16 | SW 15 | SW 15 | NW 9 | SW 14 | SW 14 |
Wave Graph | ||||||||||||||||||||
302 | 171 | 301 | 287 | 183 | 134 | 136 | 99 | 92 | 70 | 49 | 44 | 43 | 40 | 86 | 79 | 34 | 968 | 72 | 50 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross | cross | cross-off | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross |
High Tide | 00:13AM1.79m | 1:56PM1.51m | 00:53AM1.70m | 2:22PM1.56m | 1:37AM1.58m | 2:50PM1.63m | 2:28AM1.44m | 3:22PM1.69m | 3:30AM1.28m | 3:58PM1.75m | 4:51AM1.14m | 4:41PM1.81m | ||||||||
Low Tide | 6:43PM0.85m | 7:20AM-0.09m | 7:23PM0.78m | 7:50AM-0.01m | 8:07PM0.70m | 8:22AM0.12m | 8:57PM0.60m | 8:56AM0.27m | 9:54PM0.50m | 9:34AM0.46m | 10:58PM0.37m | 10:18AM0.65m | 00:08AM0.24m | |||||||
— | — | 6:13 | — | — | 6:13 | — | — | 6:15 | — | — | 6:16 | — | — | 6:16 | — | — | 6:18 | — | — | |
8:34 | — | — | 8:32 | — | — | 8:31 | — | — | 8:30 | — | — | 8:30 | — | — | 8:29 | — | — | 8:28 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 15 | 16 | 17 | 15 | 17 | 17 | 14 | 15 | 16 | 15 | 17 | 18 | 16 | 19 | 19 | 17 | 16 | 17 | 15 |
Feels °C | 11 | 11 | 12 | 13 | 12 | 13 | 13 | 8 | 8 | 9 | 9 | 11 | 11 | 10 | 15 | 16 | 14 | 15 | 17 | 16 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | S 15 | SSW 14 | SSW 14 | WNW 9 | WNW 8 | SSW 14 | SW 14 | SW 14 | SSW 13 | SW 13 | SW 13 | SW 13 | SW 16 | SW 16 | SW 15 | NNW 9 | NW 9 | NW 9 | NNW 9 |
302 | 159 | 301 | 239 | 116 | 108 | 136 | 99 | 92 | 70 | 44 | 44 | 43 | 40 | 86 | 79 | 1060 | 968 | 842 | 1184 | |
Swell 2 Height (m) Direction Period (s) | S 16 | SW 15 | S 15 | SSE 14 | SSW 14 | SSW 14 | S 13 | S 12 | S 12 | S 12 | SW 18 | SW 17 | SW 16 | SSW 12 | SSW 12 | SSW 12 | SW 15 | SW 14 | SW 14 | SW 14 |
246 | 171 | 112 | 152 | 183 | 134 | 55 | 77 | 46 | 45 | 49 | 44 | 41 | 15 | 14 | 14 | 34 | 53 | 72 | 50 | |
Swell 3 Height (m) Direction Period (s) | SSE 14 | SSE 17 | S 8 | — | S 13 | S 14 | SSE 12 | SW 19 | SW 18 | SW 18 | S 13 | S 12 | S 12 | S 16 | S 15 | S 14 | SSW 12 | S 13 | S 13 | S 13 |
19 | 94 | 1 | — | 125 | 91 | 26 | 15 | 13 | 49 | 29 | 12 | 12 | 19 | 17 | 16 | 27 | 14 | 14 | 30 | |
Wind waves Height (m) Direction Period (s) | NW 5 | NW 6 | NNW 6 | NW 9 | N 4 | NNW 4 | NW 5 | NNW 8 | NNW 8 | NNW 8 | NNW 9 | NNW 9 | NNW 9 | NNW 10 | NNW 9 | NNW 9 | — | — | — | — |
119 | 98 | 108 | 287 | 14 | 36 | 115 | 865 | 1060 | 1176 | 2179 | 1689 | 1867 | 2135 | 1254 | 1177 | — | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 436 | 40 | 211 | 436 | 40 | 316 | 436 | 80 | 316 | 437 | 54 | 334 | 316 | 59 | 80 | 51 | 21 | 86 | 51 | 41 |
Best forecast wave conditions in Humboldt County | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
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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.











