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Surf Forecasts:
Third Reef surfForecast / CAL – Humboldt / USA
48hr Weather and Surf, issued 10 am Thursday 21 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
9.0° C
(Which is 3.0°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 2PM is: 1.8m 10s primary swell from a Northwest direction and 0.5m 19s secondary swell from a Southwest direction, 1.9m 9s secondary swell from a Northwest direction (forecast issued at 10:00am May 21). The wind direction is predicted to be cross-onshore.
| Time (PDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 May) | 5.5ft (1.7m) | 11s |
| Afternoon (21 May) | 6ft (1.8m) | 10s |
| Evening (21 May) | 6ft (1.8m) | 10s |
Table - waves today at Third Reef. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 14°C on Thu morning, min 10°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Thursday 21 | Friday 22 | Saturday 23 | Sun 24 | |||||||||||||||||||||
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 11 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 9 | NW 9 | NW 9 | NW 8 | NW 10 | SSW 15 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | |
593 | 627 | 634 | 640 | 627 | 577 | 589 | 589 | 701 | 701 | 624 | 573 | 351 | 690 | 479 | 173 | 157 | 201 | 201 | 255 | 255 | 258 | 258 | 258 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross-on | cross-on | glassy | glassy | cross | cross-off | glassy | glassy | on | on | glassy | cross-on | cross-off | cross-off | cross-off | glassy | cross | glassy | glassy | glassy | glassy | glassy | cross-off | |
High Tide | 5:10PM1.42m | 3:39AM1.66m | 6:06PM1.47m | 4:54AM1.46m | 6:57PM1.54m | |||||||||||||||||||
Low Tide | 10:03AM-0.39m | 10:05PM0.87m | 11:00AM-0.22m | 11:32PM0.79m | 11:55AM-0.04m | 00:54AM0.63m | ||||||||||||||||||
 |  | | | |  | | | | | | | | | | | | | | | |  | | | |
 | 5:56 | — | — | — | — | — | — | 5:54 | — | — | — | — | — | — | — | 5:54 | — | — | — | — | — | — | — | 5:54 |
 | — | — | — | — | 8:30 | — | — | — | — | — | — | — | 8:30 | — | — | — | — | — | — | — | 8:30 | — | — | 8:31 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 13 | 14 | 14 | 14 | 13 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 11 | 10 | 10 | 10 | 12 | 12 | 11 | 10 | 10 | 10 | 10 |
12 | 12 | 12 | 14 | 12 | 13 | 13 | 13 | 14 | 12 | 12 | 13 | 12 | 9 | 8 | 8 | 9 | 11 | 11 | 10 | 9 | 9 | 9 | 9 | |
Swell 1 Height (m) Direction Period (s) | NW 11 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 9 | NW 9 | NW 9 | WNW 10 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 7 | WNW 9 | WNW 9 | WNW 9 |
 kJ | 593 | 627 | 634 | 640 | 627 | 577 | 589 | 589 | 701 | 701 | 624 | 573 | 351 | 269 | 255 | 173 | 157 | 128 | 101 | 86 | 57 | 139 | 121 | 121 |
Swell 2 Height (m) Direction Period (s) | SSW 19 | SW 19 | SW 19 | SW 15 | SW 15 | SW 15 | SW 15 | SSW 15 | SW 15 | SW 18 | SSW 18 | SW 18 | WNW 10 | NW 10 | NNW 9 | NW 10 | WNW 10 | WNW 10 | WNW 10 | NW 10 | WNW 10 | SW 16 | SW 16 | SW 16 |
| kJ | 251 | 303 | 184 | 113 | 116 | 116 | 116 | 156 | 112 | 154 | 209 | 154 | 135 | 160 | 168 | 142 | 125 | 122 | 120 | 96 | 117 | 258 | 258 | 258 |
Swell 3 Height (m) Direction Period (s) | SW 15 | SW 15 | SW 15 | S 13 | S 13 | S 13 | S 13 | S 13 | SW 18 | SW 15 | SW 15 | SW 15 | SW 18 | SW 15 | SW 15 | SW 15 | SSW 15 | SW 16 | SW 16 | SW 16 | SW 16 | NNW 7 | NNW 7 | NNW 7 |
| kJ | 78 | 79 | 80 | 54 | 54 | 54 | 53 | 52 | 154 | 109 | 109 | 109 | 152 | 106 | 109 | 109 | 156 | 201 | 201 | 255 | 255 | 37 | 37 | 37 |
Wind waves Height (m) Direction Period (s) | NW 8 | — | NW 9 | — | — | — | — | — | — | — | — | — | — | NW 9 | NW 8 | — | — | — | — | — | — | — | — | — |
| kJ | 418 | — | 573 | — | — | — | — | — | — | — | — | — | — | 690 | 479 | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 3 | 243 | 243 | 0 | 0 | 3 | 0 | 0 | 0 | 141 | 141 | 0 | 3 | 0 | 0 | 0 | 0 | 141 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Humboldt County | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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