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Cape Mendocino Surf Forecast
/ CAL – Humboldt (25 breaks) / California (404 breaks) /
Surf Forecasts:
Cape Mendocino surfForecast / CAL – Humboldt / USA
48hr Weather and Surf, issued 10 am Sunday 17 May 2026 PDTForecast update in hr min s Forecast update imminent
Cape Mendocino surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Cape Mendocino sea temperature is
10.1° C
(Which is 1.9°C colder than average for this time of year)How big are the waves at Cape Mendocino today?
The current surf forecast for Cape Mendocino at 2PM is: 3.5m 8s primary swell from a Northwest direction and 0.5m 14s secondary swell from a South direction, 0.1m 18s secondary swell from a Southwest direction (forecast issued at 10:00am May 17). The wind direction is predicted to be cross-shore.
| Time (PDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 May) | 11ft (3.5m) | 8s |
| Afternoon (17 May) | 11ft (3.5m) | 9s |
| Evening (17 May) | 5ft (1.5m) | 11s |
Table - waves today at Cape Mendocino. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 14°C on Mon afternoon, min 9°C on Sun night). Winds decreasing (strong winds from the N on Sun morning, moderate winds from the N by Tue night). | ||||||||||||||||||||||||
Sunday 17 | Monday 18 | Tuesday 19 | Wed 20 | |||||||||||||||||||||
8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
NW 8 | NW 8 | NW 8 | NW 9 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | NW 9 | NW 8 | WNW 16 | WNW 16 | WNW 16 | WNW 15 | WNW 15 | WNW 14 | WNW 14 | WNW 14 | WNW 13 | WNW 13 | WNW 13 | WNW 13 | WNW 13 | |
1638 | 1638 | 1524 | 1597 | 458 | 661 | 499 | 499 | 186 | 864 | 825 | 343 | 539 | 778 | 805 | 911 | 996 | 1143 | 1858 | 987 | 862 | 1117 | 1117 | 1269 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | |
High Tide | 1:26PM1.39m | 11:54PM2.02m | 2:23PM1.39m | 00:44AM1.98m | 3:20PM1.39m | 1:37AM1.89m | ||||||||||||||||||
Low Tide | 6:34AM-0.58m | 6:12PM0.79m | 7:23AM-0.61m | 7:05PM0.85m | 8:16AM-0.57m | 8:05PM0.89m | ||||||||||||||||||
 | | | | |  | | | | | | | | | | | | | | | |  | | | |
 | 5:58 | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — | — | 5:56 |
 | — | — | — | — | 8:28 | — | — | — | — | — | — | — | 8:29 | — | — | — | — | — | — | — | 8:30 | — | — | 8:30 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 10 | 11 | 12 | 12 | 11 | 10 | 10 | 9 | 11 | 13 | 14 | 13 | 12 | 10 | 10 | 10 | 11 | 13 | 14 | 14 | 12 | 11 | 11 | 10 |
1 | 1 | 2 | 4 | 4 | 4 | 4 | 3 | 6 | 7 | 7 | 6 | 5 | 4 | 4 | 4 | 5 | 7 | 8 | 8 | 7 | 7 | 6 | 4 | |
Swell 1 Height (m) Direction Period (s) | S 14 | S 14 | S 14 | SSW 14 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | NW 18 | WNW 18 | WNW 16 | WNW 16 | WNW 16 | WNW 15 | WNW 15 | WNW 14 | WNW 14 | WNW 14 | WNW 13 | WNW 13 | WNW 13 | WNW 13 | WNW 13 |
 kJ | 107 | 107 | 104 | 66 | 458 | 661 | 499 | 499 | 186 | 82 | 178 | 343 | 539 | 778 | 805 | 911 | 996 | 1143 | 1858 | 987 | 862 | 1117 | 1117 | 1269 |
Swell 2 Height (m) Direction Period (s) | SW 18 | SW 18 | SW 18 | SW 18 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | S 16 | S 16 | NW 11 | WNW 11 | NW 10 | NW 10 | SW 16 | SW 16 | SW 16 | WNW 8 | SW 16 | SW 16 | SW 16 |
| kJ | 13 | 13 | 12 | 12 | 62 | 60 | 60 | 59 | 59 | 58 | 34 | 46 | 46 | 59 | 163 | 392 | 356 | 69 | 69 | 69 | 56 | 96 | 95 | 68 |
Swell 3 Height (m) Direction Period (s) | — | S 20 | S 19 | S 18 | SW 18 | SW 18 | SW 18 | SSW 18 | WNW 19 | SW 18 | NW 14 | SSW 13 | WNW 13 | SW 17 | SW 17 | SW 17 | SW 16 | S 16 | S 15 | S 15 | SW 16 | S 15 | S 15 | S 15 |
| kJ | — | 7 | 7 | 6 | 12 | 12 | 13 | 32 | 37 | 49 | 52 | 34 | 35 | 47 | 76 | 70 | 69 | 42 | 40 | 69 | 96 | 39 | 38 | 38 |
Wind waves Height (m) Direction Period (s) | NW 8 | NW 8 | NW 8 | NW 9 | NNW 9 | NNW 9 | NNW 9 | NNW 9 | NNW 9 | NW 9 | NW 8 | NW 8 | NNW 9 | NNW 9 | NNW 9 | NNW 8 | NNW 8 | NNW 8 | N 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 |
| kJ | 1638 | 1638 | 1524 | 1597 | 1693 | 1404 | 1097 | 819 | 926 | 864 | 825 | 860 | 1162 | 1275 | 1274 | 864 | 634 | 771 | 292 | 459 | 358 | 384 | 575 | 614 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 151 | 329 | 436 | 438 | 437 | 80 | 54 | 54 | 40 | 316 | 436 | 438 | 234 | 68 | 54 | 54 | 54 | 262 | 316 | 436 | 80 | 59 | 52 | 51 |
Best forecast wave conditions in Humboldt County | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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