Surf Forecasts:
How big are the waves at Cape Mendocino today (20 Sep):
- Afternoon surf: Afternoon surf (20 Sep, local time) - 2.5ft (0.8m), 18s period with SW swell.
- Evening surf: Evening surf (20 Sep, local time) - 3ft (0.9m), 18s period with SW swell.
The current surf forecast for Cape Mendocino at 9PM is: 0.9m 18s primary swell from a Southwest direction and 0.4m 12s secondary swell from a South-southwest direction (forecast issued at 04:00pm September 20). An open ocean swell of 1.5m 7s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (PDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Sep) | - | - |
| Afternoon (20 Sep) | 2.5ft (0.8m) | 18s |
| Evening (20 Sep) | 3ft (0.9m) | 18s |
Table - waves today at Cape Mendocino. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 16°C on Tue afternoon, min 12°C on Sun night). Mainly fresh winds. | ||||||||||||||||||||
Sun 20 | Monday 21 | Tuesday 22 | ||||||||||||||||||
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 | |
Swell Height Map |  |  |  |  |  |  |  |  | ||||||||||||
Wave Height (m) Direction Period (s) | SW 18 | SW 19 | SW 19 | SW 18 | SW 18 | SW 17 | SW 17 | SW 17 | SW 17 | SW 17 | SW 17 | SW 17 | NW 14 | NW 13 | NW 13 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | NW 12 |
Wave Graph  | ||||||||||||||||||||
 kJ | 383 | 502 | 577 | 522 | 510 | 505 | 499 | 493 | 482 | 482 | 482 | 482 | 595 | 711 | 816 | 835 | 878 | 864 | 850 | 1092 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross |
High Tide | 6:55PM1.55m | 9:37AM1.37m | 7:56PM1.59m | 10:03AM1.43m | 8:50PM1.64m | |||||||||||||||
Low Tide | 2:00PM1.02m | 2:38AM0.18m | 2:51PM0.93m | 3:21AM0.14m | 3:34PM0.82m | |||||||||||||||
 | |  | | | | | | |  |  |  | | | |  | | | | | |
 | — | — | — | — | — | 7:03 | — | — | — | — | — | — | — | 7:03 | — | — | — | — | — | — |
 | — | 7:17 | — | — | — | — | — | — | — | 7:15 | — | — | — | — | — | — | — | 7:15 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 14 | 13 | 12 | 12 | 12 | 12 | 15 | 15 | 14 | 13 | 13 | 13 | 13 | 13 | 15 | 16 | 15 | 13 | 12 |
Feels °C | 12 | 10 | 9 | 8 | 9 | 8 | 8 | 11 | 10 | 10 | 10 | 10 | 9 | 9 | 8 | 10 | 11 | 11 | 9 | 8 |
Swell 1 Height (m) Direction Period (s) | SW 18 | SW 19 | SW 19 | SW 18 | SW 18 | SW 17 | SW 17 | SW 17 | SW 17 | SW 17 | SW 17 | NW 15 | NW 14 | NW 13 | NW 13 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | NW 12 |
| kJ | 383 | 502 | 577 | 522 | 510 | 505 | 499 | 493 | 482 | 482 | 482 | 418 | 595 | 711 | 816 | 835 | 878 | 864 | 850 | 1092 |
Swell 2 Height (m) Direction Period (s) | SSW 13 | S 13 | S 12 | SSW 12 | SSW 12 | SSW 12 | S 12 | NW 9 | WNW 9 | WNW 8 | NW 16 | SW 17 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 |
| kJ | 31 | 50 | 27 | 50 | 29 | 29 | 27 | 40 | 52 | 46 | 295 | 482 | 560 | 553 | 454 | 381 | 367 | 367 | 367 | 371 |
Swell 3 Height (m) Direction Period (s) | SW 12 | SW 12 | SW 12 | SW 12 | WNW 10 | WNW 10 | SW 12 | S 12 | S 13 | NW 16 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | S 12 | S 12 | S 12 | S 12 | S 12 |
| kJ | 6 | 6 | 6 | 6 | 10 | 9 | 5 | 27 | 28 | 132 | 58 | 55 | 51 | 34 | 34 | 25 | 25 | 25 | 11 | 11 |
Wind waves Height (m) Direction Period (s) | NW 6 | NNW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 6 | NNW 6 | NNW 6 | NNW 7 | NNW 7 | N 8 |
| kJ | 167 | 186 | 192 | 192 | 186 | 222 | 270 | 256 | 198 | 175 | 166 | 149 | 195 | 230 | 216 | 210 | 201 | 220 | 198 | 163 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 151 | 80 | 54 | 45 | 41 | 40 | 51 | 651 | 294 | 437 | 54 | 41 | 40 | 40 | 54 | 54 | 262 | 437 | 316 | 59 |
Best forecast wave conditions in Humboldt County | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
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