
Surf Forecasts:
Cape Mendocino surf forecast from 13 Jul 2026:
- Most powerful swell: Sunday 19 Jul, 8PM (local time) - 3ft (0.9m), 17s period, SW swell with 505 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 0.9m 17s and forecast to arrive on Sunday (Jul 19) at 8PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.3m 8s period and expected on Monday (Jul 20) at 11AM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8PM (Sun 19th Jul) | 3ft (0.9m) 17s |
Table - best surf conditions forecast for Cape Mendocino over the next 16 days.
The Lowdown
Right, folks, Rusty here. Let’s be straight with you. We’ve got a long 16-day window, but honestly, it’s a bit of a tough stretch for a proper paddle. The overall pattern is one of persistent cross-shore winds and messy conditions, meaning we’re waiting a long time for anything decent.
Right now, and for the next week, Cape Mendocino is copping a lot of wind. The water is sitting at 51°F, which is a solid 5°F colder than normal for this time of year – that’s a very unusual chill, so you’ll want a thick, good-quality wetsuit. The first few days are a write-off with poor surf and moderate cross-shore breezes. The swell is small and weak, with wave energy in the 200s to 300s (moderate wave energy), but the wind just ruins it.
We finally see a glimmer on Thursday, July 16th, with a very marginal call. The swell is tiny at 2ft, but the period is a long 19 seconds from the WNW. That’s a proper groundswell, but it’s got no size to work with, and the wind is a gentle cross-onshore, leaving it a bit choppy. Wave energy (648) is moderate. It’s not a goer.
Friday, July 17th, is similar. Still poor, but the morning has a slightly better wave energy reading (972) and a 17-second period. The onshore wind is still a problem, though. We’re looking at a lot of waiting.
The only standout in the whole two weeks comes on Tuesday, July 21st. The morning brings a pulse of swell hitting 7ft from the NW with a short period of 9 seconds. That’s a lot of windswell. The wave energy is strong (1020). The problem? The wind is a moderate cross-onshore, making it choppy and the conditions are still described as “poor.” This is for experts only, as it’s over the 5ft mark. The short period means it’ll be a bit fat and messy, not the clean, lined-up stuff we dream of. Beginners, sit this one out.
Wednesday, July 22nd, offers a marginal chance in the morning with 6ft NW swell (10-second period) and cross-shore wind. Wave energy is moderate (846). It’s again for experienced surfers, but the wind isn’t doing us any favours.
After that, it’s a long grind of poor surf and lumpy, fresh breezes right through to the end of the month. There are no real clean windows. This is a stretch where it’s looking more interesting for the kite surfers than the paddle crew, given the persistent wind and the mostly beach-break setup, though there are no other break types here to compare.
Hang in there, but don’t rush to the water’s edge.
Rusty.
Short Range ForecastMostly dry. Very mild (max 16°C on Mon morning, min 11°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 17°C on Fri afternoon, min 11°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | |||||||||||||||
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) | NW 8 | SSW 13 | SSW 13 | NW 6 | NNW 6 | SW 18 | WNW 10 | WNW 10 | WNW 20 | WNW 19 | WNW 19 | WNW 18 | WNW 17 | WNW 16 | WNW 16 | WNW 16 | SW 18 | WNW 16 | WNW 15 | SW 17 | SW 17 |
Wave Graph | |||||||||||||||||||||
297 | 118 | 184 | 109 | 103 | 194 | 151 | 160 | 218 | 286 | 280 | 438 | 433 | 480 | 457 | 446 | 375 | 348 | 326 | 434 | 419 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | cross | cross | cross | cross | cross | cross | cross-on | cross-on | cross | cross-on | cross | cross-off | cross | cross | cross-off | cross | cross | cross |
High Tide | 12:18PM1.44m | 10:38PM2.15m | 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 | |||||||
Low Tide | 4:56PM0.90m | 6:11AM-0.52m | 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 | ||||||||
5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 6:00 | — | — | 6:01 | — | — | 6:01 | — | — | 6:03 | — | — | |
— | 8:46 | — | — | 8:46 | — | — | 8:45 | — | — | 8:45 | — | — | 8:45 | — | — | 8:44 | — | — | 8:44 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 16 | 14 | 16 | 16 | 14 | 16 | 16 | 14 | 15 | 15 | 14 | 16 | 17 | 15 | 15 | 16 | 14 | 15 | 15 | 13 |
Feels °C | 12 | 11 | 9 | 12 | 12 | 10 | 12 | 12 | 10 | 13 | 13 | 12 | 13 | 14 | 12 | 12 | 12 | 10 | 10 | 10 | 8 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 13 | SSW 13 | W 14 | WNW 8 | WNW 9 | WNW 10 | WNW 10 | WNW 9 | WNW 19 | WNW 8 | WNW 18 | WNW 17 | WNW 16 | NNW 7 | WNW 16 | WNW 16 | WNW 16 | WNW 15 | SW 17 | SW 17 |
125 | 118 | 184 | 106 | 37 | 108 | 151 | 151 | 158 | 286 | 76 | 438 | 433 | 480 | 96 | 446 | 353 | 348 | 326 | 434 | 419 | |
Swell 2 Height (m) Direction Period (s) | SSW 14 | WNW 15 | SW 19 | SSW 13 | W 14 | SW 18 | WNW 13 | WNW 20 | SW 16 | SW 16 | WNW 19 | SW 15 | SW 19 | SW 14 | WNW 16 | SW 17 | SW 18 | NW 10 | SW 16 | WNW 14 | WNW 14 |
66 | 76 | 133 | 66 | 103 | 194 | 59 | 160 | 161 | 159 | 280 | 183 | 296 | 102 | 457 | 358 | 375 | 92 | 201 | 239 | 236 | |
Swell 3 Height (m) Direction Period (s) | W 14 | S 16 | WNW 14 | S 13 | SSW 12 | SSW 13 | SW 18 | SW 17 | WNW 20 | WNW 12 | SW 16 | WNW 8 | SW 14 | SW 19 | SW 14 | NW 11 | NW 10 | NNW 8 | WNW 9 | NW 9 | SSE 13 |
33 | 45 | 70 | 51 | 61 | 90 | 108 | 102 | 218 | 30 | 159 | 27 | 103 | 177 | 130 | 92 | 106 | 39 | 54 | 38 | 35 | |
Wind waves Height (m) Direction Period (s) | NW 8 | NW 8 | NNW 8 | NW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NW 7 | NNW 6 | NW 7 | NW 7 | NW 7 | — | NNW 7 | NNW 8 | N 3 | NNW 8 | NNW 5 | NNW 7 |
297 | 268 | 162 | 109 | 103 | 61 | 107 | 104 | 68 | 173 | 73 | 106 | 140 | 140 | — | 84 | 98 | 6 | 138 | 85 | 302 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 151 | 334 | 51 | 151 | 51 | 40 | 151 | 54 | 40 | 211 | 151 | 51 | 334 | 151 | 40 | 151 | 211 | 40 | 262 | 436 | 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.










