Surf Forecasts:
How big are the waves at Cape Mendocino today (20 Aug):
- Morning surf: Morning surf (20 Aug, local time) - 2.5ft (0.8m), 14s period with SSW swell.
- Afternoon surf: Afternoon surf (20 Aug, local time) - 2.5ft (0.8m), 14s period with SSW swell.
- Evening surf: Evening surf (20 Aug, local time) - 2.5ft (0.8m), 14s period with SSW swell.
The current surf forecast for Cape Mendocino at 4PM is: 0.8m 14s primary swell from a South-southwest direction and 0.9m 11s secondary swell from a West-northwest direction, 1.0m 6s secondary swell from a Northwest direction (forecast issued at 10:00am August 20). The wind direction is predicted to be cross-onshore.
| Time (PDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Aug) | 2.5ft (0.8m) | 14s |
| Afternoon (20 Aug) | 2.5ft (0.8m) | 14s |
| Evening (20 Aug) | 2.5ft (0.8m) | 14s |
Table - waves today at Cape Mendocino. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 18°C on Sat afternoon, min 12°C on Sat night). Wind will be generally light. | ||||||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | ||||||||||||||||||||
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 | |
Swell Height Map |  |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | WNW 11 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SW 18 | SW 17 | SW 17 |
Wave Graph  | ||||||||||||||||||||||
 kJ | 242 | 233 | 223 | 223 | 229 | 233 | 236 | 236 | 233 | 156 | 145 | 139 | 99 | 98 | 99 | 99 | 99 | 99 | 99 | 111 | 101 | 97 |
Wind (km/h) | ||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross | cross | cross | cross | cross-off | cross | cross-on | cross-on | cross-on | cross | cross-off | off | cross-off | cross-off | cross | cross | cross | cross | cross-off |
High Tide | 7:24AM1.13m | 5:31PM1.65m | 8:53AM1.20m | 6:30PM1.65m | 9:48AM1.27m | 7:30PM1.67m | ||||||||||||||||
Low Tide | 11:45AM0.99m | 1:32AM0.24m | 1:04PM1.05m | 2:33AM0.18m | 2:14PM1.05m | |||||||||||||||||
 |  | | | |  | | | | | |  | |  | | | | | | | |  | |
 | 6:31 | — | — | — | — | — | — | 6:33 | — | — | — | — | — | — | — | 6:33 | — | — | — | — | — | — |
 | — | — | — | — | 8:07 | — | — | — | — | — | — | — | 8:06 | — | — | — | — | — | — | — | 8:05 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 16 | 16 | 16 | 14 | 13 | 13 | 13 | 13 | 16 | 16 | 16 | 14 | 13 | 13 | 13 | 14 | 17 | 18 | 17 | 15 | 13 |
Feels °C | 13 | 15 | 14 | 14 | 12 | 11 | 12 | 12 | 12 | 15 | 15 | 15 | 13 | 12 | 12 | 12 | 13 | 15 | 15 | 13 | 12 | 10 |
Swell 1 Height (m) Direction Period (s) | WNW 12 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | NNW 7 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 7 | NNW 7 | WNW 10 | WNW 10 | WNW 10 | WNW 9 |
| kJ | 237 | 225 | 214 | 210 | 167 | 167 | 164 | 164 | 161 | 128 | 64 | 76 | 74 | 74 | 74 | 72 | 62 | 62 | 54 | 52 | 51 | 48 |
Swell 2 Height (m) Direction Period (s) | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | NNW 7 | NNW 7 | SSW 14 | SSW 14 | NW 7 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | SSW 13 | SSW 13 | SSW 13 | SSW 13 |
| kJ | 242 | 233 | 223 | 223 | 229 | 59 | 66 | 236 | 233 | 49 | 115 | 83 | 82 | 80 | 78 | 77 | 75 | 54 | 99 | 98 | 66 | 66 |
Swell 3 Height (m) Direction Period (s) | NW 7 | SW 18 | SW 19 | SW 19 | SW 19 | SSW 14 | SSW 14 | NNW 7 | NNW 7 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SW 18 | SW 18 | SW 17 | SW 17 |
| kJ | 52 | 54 | 56 | 58 | 59 | 233 | 236 | 61 | 42 | 156 | 145 | 139 | 99 | 98 | 99 | 99 | 99 | 99 | 52 | 111 | 101 | 97 |
Wind waves Height (m) Direction Period (s) | NNW 6 | NW 6 | NW 6 | NNW 6 | NW 6 | — | — | — | — | — | NW 2 | NW 8 | — | — | — | — | — | — | NNW 7 | NNW 7 | NNW 7 | NNW 7 |
| kJ | 106 | 75 | 75 | 67 | 61 | — | — | — | — | — | 1 | 41 | — | — | — | — | — | — | 62 | 78 | 97 | 104 |
Nearest Offshore or Glassy | ||||||||||||||||||||||
Distance (km) | 51 | 93 | 83 | 68 | 51 | 40 | 40 | 0 | 21 | 59 | 438 | 59 | 21 | 0 | 0 | 0 | 0 | 59 | 437 | 438 | 54 | 51 |
Best forecast wave conditions in Humboldt County | ||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||
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