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Surf Forecasts:
Third Reef surfForecast / CAL – Humboldt / USA
48hr Weather and Surf, issued 10 am Wednesday 20 May 2026 PDTForecast update in hr min s Forecast update imminent
Third Reef surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Third Reef sea temperature is
9.4° C
(Which is 2.6°C colder than average for this time of year)How big are the waves at Third Reef today?
The current surf forecast for Third Reef at 1PM is: 1.9m 12s primary swell from a Northwest direction and 0.4m 16s secondary swell from a Southwest direction (forecast issued at 10:00am May 20). An open ocean swell of 0.4m 14s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (PDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 May) | 8ft (2.4m) | 12s |
| Afternoon (20 May) | 7ft (2.1m) | 12s |
| Evening (20 May) | 7ft (2.1m) | 12s |
Table - waves today at Third Reef. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 20°C on Wed afternoon, min 10°C on Wed night). Wind will be generally light. | ||||||||||||||||||||||||
Wednesday 20 | Thursday 21 | Friday 22 | Sat 23 | |||||||||||||||||||||
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 13 | NW 12 | NW 12 | NW 12 | NW 12 | NW 11 | NW 9 | NW 11 | NW 11 | NW 10 | NW 9 | NW 10 | NW 10 | NW 9 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 9 | NW 9 | NW 9 | NW 9 | WNW 10 | |
1834 | 993 | 1094 | 1313 | 1187 | 439 | 643 | 561 | 698 | 685 | 891 | 701 | 335 | 711 | 664 | 589 | 687 | 577 | 566 | 531 | 351 | 294 | 281 | 245 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross-on | cross-on | cross-on | cross | cross | cross | cross | glassy | cross-on | cross-on | glassy | cross | cross | cross | cross-off | glassy | cross-on | cross-on | glassy | cross-on | cross | cross-off | glassy | |
High Tide | 4:11PM1.40m | 2:34AM1.85m | 5:10PM1.42m | 3:39AM1.66m | 6:06PM1.47m | 4:54AM1.46m | ||||||||||||||||||
Low Tide | 9:06AM-0.55m | 8:45PM0.89m | 10:03AM-0.39m | 10:05PM0.87m | 11:00AM-0.22m | 11:32PM0.79m | ||||||||||||||||||
 | | | | |  | | | |  | | | | | | | | | | | | | | | |
 | 5:56 | — | — | — | — | — | — | 5:56 | — | — | — | — | — | — | — | 5:54 | — | — | — | — | — | — | — | 5:54 |
 | — | — | — | — | 8:29 | — | — | — | — | — | — | — | 8:30 | — | — | — | — | — | — | — | 8:30 | — | — | 8:30 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 13 | 16 | 16 | 20 | 15 | 10 | 10 | 11 | 15 | 14 | 14 | 14 | 14 | 13 | 12 | 13 | 15 | 13 | 12 | 12 | 12 | 12 | 10 | 10 |
10 | 13 | 12 | 15 | 11 | 6 | 7 | 9 | 14 | 12 | 13 | 13 | 13 | 11 | 10 | 11 | 14 | 11 | 11 | 11 | 11 | 11 | 8 | 9 | |
Swell 1 Height (m) Direction Period (s) | NW 13 | SW 21 | SW 16 | SW 16 | SW 16 | NW 11 | NW 11 | NW 11 | NW 11 | NW 10 | NW 10 | NW 10 | NW 10 | NW 9 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 9 | NW 9 | NW 9 | NW 9 | WNW 10 |
 kJ | 1094 | 224 | 90 | 89 | 122 | 439 | 582 | 561 | 698 | 685 | 680 | 701 | 335 | 343 | 577 | 589 | 687 | 577 | 566 | 531 | 351 | 294 | 281 | 245 |
Swell 2 Height (m) Direction Period (s) | SW 21 | SW 16 | S 14 | S 14 | S 14 | SW 16 | NNW 9 | NNW 9 | SSW 19 | SW 19 | SW 19 | SW 15 | SW 15 | WNW 11 | SW 15 | SW 17 | SW 15 | SW 18 | SW 18 | SW 18 | NW 10 | WNW 11 | NW 10 | NNW 9 |
| kJ | 162 | 65 | 61 | 59 | 58 | 119 | 127 | 71 | 251 | 303 | 184 | 113 | 116 | 234 | 116 | 142 | 112 | 154 | 154 | 154 | 108 | 146 | 157 | 138 |
Swell 3 Height (m) Direction Period (s) | SW 16 | S 14 | SW 21 | SSW 21 | SW 21 | S 14 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | S 13 | S 13 | SW 15 | S 13 | S 13 | SW 18 | SW 15 | SW 15 | SW 15 | SW 18 | SW 15 | SW 15 | SW 15 |
| kJ | 66 | 36 | 117 | 44 | 18 | 57 | 112 | 79 | 78 | 79 | 80 | 54 | 54 | 116 | 53 | 52 | 111 | 109 | 109 | 110 | 152 | 106 | 109 | 109 |
Wind waves Height (m) Direction Period (s) | NW 13 | NW 12 | NW 12 | NW 12 | NW 12 | NW 8 | NW 9 | NW 9 | — | — | NW 9 | — | NW 9 | NW 9 | NW 9 | — | — | — | — | — | — | — | — | — |
| kJ | 1834 | 993 | 1094 | 1313 | 1187 | 238 | 643 | 548 | — | — | 891 | — | 321 | 711 | 664 | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 3 | 193 | 243 | 57 | 57 | 3 | 3 | 3 | 0 | 193 | 3 | 0 | 3 | 3 | 3 | 0 | 0 | 141 | 3 | 0 | 0 | 3 | 0 | 0 |
Best forecast wave conditions in Humboldt County | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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