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Aligator Rock surfForecast / HAW – Oahu / USA
48hr Weather and Surf, issued 7 pm Tuesday 19 May 2026 HSTForecast update in hr min s Forecast update imminent
Aligator Rock surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Aligator Rock sea temperature is
25.5° C
(Which is normal for this time of year)How big are the waves at Aligator Rock today?
The current surf forecast for Aligator Rock at 11PM is: 0.7m 11s primary swell from a Northwest direction (forecast issued at 07:00pm May 19). An open ocean swell of 0.2m 15s is not directed at the surf break, a second open ocean swell of 1.9m 7s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 May) | - | - |
| Afternoon (19 May) | 2ft (0.6m) | 11s |
| Evening (19 May) | 2ft (0.6m) | 11s |
Table - waves today at Aligator Rock. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 24°C on Tue night, min 23°C on Wed night). Mainly fresh winds. | ||||||||||||||||||||||||
Tue 19 | Wednesday 20 | Thursday 21 | Fri 22 | |||||||||||||||||||||
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 | 8 AM | 11 AM | 2 PM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
NW 10 | NW 11 | NW 11 | NW 10 | NW 10 | NNW 10 | NW 10 | NNW 11 | NNW 10 | NNW 11 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NNW 10 | NW 11 | |
89 | 92 | 115 | 108 | 104 | 67 | 47 | 65 | 97 | 75 | 63 | 41 | 33 | 37 | 24 | 24 | 24 | 23 | 23 | 25 | 25 | 25 | 40 | 56 | |
Wind (km/h) | ||||||||||||||||||||||||
off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | cross-off | off | off | off | off | cross-off | cross-off | |
High Tide | 5:44PM0.57m | 6:00AM0.09m | 6:40PM0.53m | 7:31AM0.11m | 7:36PM0.48m | 9:08AM0.16m | ||||||||||||||||||
Low Tide | 00:33AM0.00m | 9:42AM-0.02m | 1:31AM0.00m | 10:46AM0.04m | 2:21AM-0.00m | 12:11PM0.09m | ||||||||||||||||||
 |  | | | | | | | | | | |  |  | | | | | | | | | | | |
 | — | — | — | — | 5:50 | — | — | — | — | — | — | — | 5:50 | — | — | — | — | — | — | — | 5:50 | — | — | — |
 | 7:05 | — | — | — | — | — | — | — | 7:06 | — | — | — | — | — | — | — | 7:06 | — | — | — | — | — | — | 7:06 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 25 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 24 |
24 | 23 | 23 | 23 | 23 | 23 | 22 | 21 | 21 | 20 | 20 | 19 | 19 | 19 | 20 | 20 | 18 | 19 | 19 | 19 | 19 | 19 | 20 | 20 | |
Swell 1 Height (m) Direction Period (s) | NW 10 | NW 11 | NW 11 | NW 10 | NW 10 | NNW 10 | NW 10 | NNW 11 | NNW 10 | NNW 11 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NNW 10 | NW 11 |
 kJ | 89 | 92 | 115 | 108 | 104 | 67 | 47 | 65 | 97 | 75 | 63 | 41 | 33 | 37 | 24 | 24 | 24 | 23 | 23 | 25 | 25 | 25 | 40 | 56 |
Swell 2 Height (m) Direction Period (s) | SW 13 | SSW 16 | SSW 15 | SSW 15 | SW 16 | SW 16 | NNW 11 | SSW 16 | SSW 16 | SSW 13 | NW 9 | NW 9 | WNW 9 | SSW 13 | SSW 13 | SSW 14 | S 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | S 15 | SSW 15 | SSW 14 |
| kJ | 27 | 24 | 21 | 44 | 64 | 64 | 43 | 50 | 50 | 18 | 13 | 12 | 8 | 16 | 16 | 20 | 5 | 22 | 21 | 21 | 21 | 17 | 21 | 20 |
Swell 3 Height (m) Direction Period (s) | SSW 18 | SSW 13 | NNW 13 | SW 16 | SW 13 | NNW 12 | SW 16 | NW 10 | SW 13 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | S 16 | S 16 | S 16 | SW 12 | SW 14 | S 13 | S 13 | S 13 | SW 13 | S 12 | S 18 |
| kJ | 30 | 17 | 17 | 10 | 7 | 28 | 64 | 14 | 7 | 20 | 20 | 16 | 16 | 21 | 20 | 5 | 6 | 8 | 3 | 3 | 3 | 7 | 3 | 6 |
Wind waves Height (m) Direction Period (s) | E 8 | E 7 | E 7 | E 8 | ENE 8 | E 8 | E 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 |
| kJ | 324 | 358 | 387 | 464 | 485 | 573 | 642 | 701 | 748 | 737 | 785 | 857 | 939 | 893 | 893 | 979 | 1003 | 1097 | 1121 | 1098 | 1048 | 953 | 912 | 847 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 22 | 22 | 22 | 165 | 166 | 168 | 168 | 174 | 166 | 303 | 168 | 22 | 165 | 22 | 22 | 166 | 166 |
Best forecast wave conditions in Oahu | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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