
Surf Forecasts:
Cape Mendocino surf forecast from 15 Jul 2026:
- Best quality surf: Sunday 19 Jul, 8AM (local time) - 3ft (0.9m), 15s period, WNW swell with glassy winds.
- Most powerful swell: Friday 17 Jul, 5PM (local time) - 3.5ft (1.0m), 16s period, WNW swell with 518 kJ wave energy.
- Next surfable swell (1★+): Sunday 19 Jul, 8AM (local time) - 3ft (0.9m), 15s period with WNW 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 (Jul 19) at 8AM. The primary swell is predicted to be 0.9m and 15s period with a secondary swell of 1.5m and 8s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Cape Mendocino in the next 16 days are 1.0m 16s and forecast to arrive on Friday (Jul 17) 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 1.9m 7s period and expected on Friday (Jul 17) at 8AM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Sun 19th Jul) | 3ft (0.9m) 15s |
| Best Surf | 8AM (Sun 19th Jul) | 3ft (0.9m) 15s |
| Most Powerful | 5PM (Fri 17th Jul) | 3.5ft (1.0m) 16s |
Table - best surf conditions forecast for Cape Mendocino over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s have a look at what’s cooking for the next couple of weeks.
Honestly, mate, it’s a pretty grim start. The first recommendation doesn’t come around until Saturday the 18th, and even then, it’s pretty marginal. The beginning of the period is a write-off. We’ve got a solid week of poor surf conditions with messy, cross-shore winds and tiny, weak swell. The water is way colder than it should be for this time of year – a full 5°F colder than average – so you’ll want a thick wetsuit if you’re even thinking about getting in.
The real standout, the only one that gets my heart rate up, is Cape Mendocino on Saturday the 18th. It’s not perfect, but it’s the best we’ve got. We’re talking a solid 7 ft swell from the NW, with a short period of 8 seconds. The combined swell energy is strong (1148), so there’s some grunt behind it. The morning is a bit messy with a cross-onshore wind, but the afternoon cleans up to a cross-shore wind. The wave comment says “marginal,” but compared to the flatness before it, this is the one to circle. It’s definitely an advanced spot, and with the size, it’s not for beginners. The swell direction is NW, which is what this spot needs.
Sunday the 19th offers a bit of relief. The swell drops right back to 3 ft, but we get a beautiful, light offshore wind from the WNW in the morning. That’s glassy, clean conditions. The period jumps to a very long 15 seconds, which is a classic groundswell. This size and period will make for some nice, lined-up waves, but the energy is only moderate (725). It’s a better paddle-out with the long gaps between sets, and if you can find a bank, it’ll be a fun, clean session.
After that, the surf drops off again for the rest of the first week and into the second week. It’s a long stretch of small, weak, and messy surf. The wind stays cross or cross-shore for days, and the ocean looks pretty average.
The next flicker of life shows up around the 25th and 26th of July. We start seeing some bigger, longer-period swell from the SW/S. On Saturday the 25th, the afternoon sees a 3 ft swell from the SSW with a very long period of 21 seconds and strong combined energy (1457). The wind is cross-shore, which is okay, but it’s a long way out. The 26th has a similar story with a 4 ft swell from the SW and a long period of 20 seconds, with even stronger energy (1586). These are promising, but it’s a long-range call, and the wind is still a bit on the strong side. If the wind lays down, those days could be absolute rippers for the points and reefs, but don’t book the time off just yet.
So, if you’re waiting for the best of the window, it’s Saturday the 18th for the most size, or Sunday the 19th for the cleanest, most user-friendly conditions. The rest of the time, you’re looking at a lot of flat spells.
Rusty.
Short Range ForecastMostly dry. Very mild (max 16°C on Tue morning, min 11°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 15°C on Fri afternoon, min 12°C on Fri morning). Wind will be generally light. | ||||||||||||||||||||
Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | |||||||||||||||
AM | 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) | NNW 6 | W 14 | SW 18 | WNW 10 | WNW 10 | WNW 20 | WNW 19 | WNW 19 | WNW 18 | WNW 17 | WNW 16 | WNW 16 | NW 8 | NW 8 | WNW 16 | WNW 15 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 |
Wave Graph | |||||||||||||||||||||
106 | 103 | 194 | 154 | 183 | 218 | 286 | 280 | 438 | 433 | 518 | 463 | 489 | 475 | 348 | 259 | 434 | 419 | 302 | 362 | 367 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | cross | cross | cross-off | cross | cross | cross | cross | cross | cross | cross-on | cross | cross | on | cross-on | cross | cross-on | cross | cross |
High Tide | 1:01PM1.50m | 11:31PM2.12m | 1:42PM1.56m | 00:24AM2.04m | 2:22PM1.61m | 1:16AM1.89m | 3:01PM1.66m | 2:11AM1.69m | 3:40PM1.69m | 3:10AM1.48m | 4:20PM1.72m | 4:18AM1.27m | 5:00PM1.73m | ||||||||
Low Tide | 5:52PM0.84m | 6:56AM-0.48m | 6:48PM0.78m | 7:41AM-0.39m | 7:46PM0.71m | 8:23AM-0.23m | 8:45PM0.65m | 9:05AM-0.04m | 9:49PM0.58m | 9:47AM0.18m | 10:56PM0.49m | 10:31AM0.41m | 00:05AM0.40m | ||||||||
5:58 | — | — | 5:58 | — | — | 6:00 | — | — | 6:01 | — | — | 6:01 | — | — | 6:03 | — | — | 6:03 | — | — | |
— | 8:46 | — | — | 8:45 | — | — | 8:45 | — | — | 8:45 | — | — | 8:44 | — | — | 8:44 | — | — | 8:43 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 16 | 14 | 15 | 15 | 14 | 15 | 15 | 13 | 14 | 15 | 14 | 15 | 15 | 13 | 15 | 15 | 14 | 16 | 17 | 15 |
Feels °C | 11 | 11 | 10 | 11 | 11 | 10 | 11 | 11 | 9 | 10 | 11 | 10 | 12 | 12 | 10 | 14 | 14 | 13 | 15 | 16 | 13 |
Swell 1 Height (m) Direction Period (s) | W 14 | WNW 8 | WNW 9 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 19 | WNW 18 | WNW 17 | WNW 16 | NNW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NNW 8 | NNW 8 | NW 8 |
106 | 41 | 108 | 154 | 183 | 130 | 90 | 280 | 438 | 433 | 518 | 392 | 489 | 475 | 329 | 221 | 191 | 196 | 230 | 230 | 206 | |
Swell 2 Height (m) Direction Period (s) | SSW 13 | W 14 | SW 18 | WNW 13 | WNW 20 | SW 16 | WNW 19 | SW 16 | SW 15 | SW 19 | SW 14 | WNW 16 | WNW 16 | WNW 16 | WNW 16 | WNW 15 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 |
66 | 103 | 194 | 57 | 160 | 161 | 286 | 159 | 143 | 296 | 74 | 463 | 366 | 353 | 348 | 259 | 434 | 419 | 302 | 362 | 367 | |
Swell 3 Height (m) Direction Period (s) | S 13 | SSW 12 | SSW 13 | SW 18 | SW 17 | WNW 20 | SW 16 | WNW 9 | S 12 | SW 14 | SW 19 | SW 14 | SW 17 | SW 18 | SW 16 | SW 16 | WNW 14 | WNW 14 | WNW 14 | SSE 12 | SSE 12 |
51 | 61 | 90 | 108 | 102 | 218 | 159 | 42 | 11 | 74 | 177 | 132 | 293 | 375 | 129 | 245 | 239 | 183 | 160 | 123 | 155 | |
Wind waves Height (m) Direction Period (s) | NNW 6 | NNW 5 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NW 7 | NW 7 | NW 7 | — | — | — | — | — | — | — | — | — | — |
81 | 57 | 55 | 90 | 81 | 43 | 58 | 93 | 178 | 394 | 405 | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 151 | 52 | 40 | 151 | 436 | 54 | 151 | 436 | 54 | 151 | 437 | 40 | 151 | 54 | 40 | 211 | 73 | 40 | 51 | 51 | 40 |
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.










