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Surf Forecasts:
Power Plant surfForecast / HAW – Oahu / USA
48hr Weather and Surf, issued 7 am Tuesday 12 May 2026 HSTForecast update in hr min s Forecast update imminent
Power Plant surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Power Plant sea temperature is
25.4° C
(Which is slightly warmer than usual)How big are the waves at Power Plant today?
The current surf forecast for Power Plant at 11AM is: 0.5m 16s primary swell from a South-southwest direction (forecast issued at 07:00am May 12). An open ocean swell of 0.7m 11s is not directed at the surf break, a second open ocean swell of 0.7m 6s is not directed at the surf break, a second open ocean swell of 1.3m 7s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 May) | 1.5ft (0.5m) | 10s |
| Afternoon (12 May) | 2ft (0.6m) | 16s |
| Evening (12 May) | 1.5ft (0.4m) | 16s |
Table - waves today at Power Plant. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 26°C on Tue afternoon, min 23°C on Tue night). Mainly fresh winds. | ||||||||||||||||||||||||
Tuesday 12 | Wednesday 13 | Thursday 14 | Fri 15 | |||||||||||||||||||||
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 | 5 PM | 8 PM | 11 PM | 2 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
NW 11 | NW 10 | SSW 16 | S 16 | S 16 | S 16 | SW 16 | SW 16 | SSE 15 | S 15 | S 14 | SW 15 | SSW 14 | SSW 14 | NW 17 | NW 16 | SE 9 | NW 15 | NW 15 | SE 10 | NW 14 | NW 14 | NW 14 | NW 13 | |
90 | 53 | 144 | 186 | 124 | 79 | 75 | 73 | 72 | 104 | 103 | 56 | 82 | 82 | 145 | 216 | 43 | 335 | 435 | 24 | 614 | 573 | 540 | 517 | |
Wind (km/h) | ||||||||||||||||||||||||
off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | |
High Tide | 1:29PM0.52m | 00:28AM0.44m | 2:05PM0.62m | 1:12AM0.39m | 2:43PM0.71m | 1:56AM0.34m | ||||||||||||||||||
Low Tide | 6:35AM0.07m | 7:21PM0.26m | 6:58AM0.04m | 8:30PM0.23m | 7:24AM0.01m | 9:33PM0.20m | ||||||||||||||||||
 |  | | | | | | | | | | | | | |  | |  | | | | | | | |
 | 5:54 | — | — | — | — | — | — | — | 5:54 | — | — | — | — | — | — | — | 5:54 | — | — | — | — | — | — | 5:54 |
 | — | — | — | — | 7:01 | — | — | — | — | — | — | — | 7:01 | — | — | — | — | — | — | — | 7:02 | — | — | 7:02 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 23 | 24 | 25 | 26 | 25 | 23 | 23 | 23 | 23 | 24 | 25 | 26 | 25 | 24 | 23 | 23 | 23 | 24 | 26 | 26 | 26 | 24 | 24 | 24 |
21 | 21 | 22 | 22 | 22 | 20 | 20 | 21 | 21 | 21 | 22 | 23 | 22 | 22 | 21 | 22 | 23 | 22 | 25 | 24 | 24 | 23 | 23 | 24 | |
Swell 1 Height (m) Direction Period (s) | N 7 | N 7 | NNW 11 | N 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 9 | NNW 9 | NNW 9 | NNW 9 | SSW 14 | N 7 | E 7 | NW 16 | NW 15 | NW 15 | NW 15 | NW 14 | NW 14 | NW 14 | NW 13 |
 kJ | 58 | 55 | 123 | 216 | 214 | 173 | 137 | 135 | 105 | 98 | 65 | 84 | 84 | 82 | 33 | 276 | 271 | 335 | 435 | 503 | 614 | 573 | 540 | 517 |
Swell 2 Height (m) Direction Period (s) | NW 11 | NNW 12 | N 6 | S 16 | S 16 | S 16 | SSE 15 | SSE 15 | SSE 15 | S 15 | S 14 | SE 9 | SSE 9 | NW 9 | NW 17 | N 8 | N 8 | N 8 | N 8 | N 8 | SSE 10 | E 8 | E 8 | E 8 |
| kJ | 90 | 77 | 39 | 186 | 124 | 79 | 75 | 73 | 72 | 104 | 103 | 41 | 53 | 28 | 145 | 68 | 66 | 64 | 47 | 49 | 63 | 117 | 116 | 117 |
Swell 3 Height (m) Direction Period (s) | SSW 16 | NW 10 | SSW 16 | SE 9 | SE 9 | SE 9 | SW 16 | SW 16 | SSW 14 | SE 9 | SE 9 | SW 15 | SSW 14 | SE 9 | SSW 14 | NW 16 | SE 9 | SSW 14 | SSW 14 | SE 10 | N 8 | SSE 10 | N 8 | SW 16 |
| kJ | 86 | 53 | 144 | 20 | 27 | 27 | 65 | 65 | 41 | 20 | 12 | 56 | 82 | 21 | 81 | 216 | 43 | 111 | 80 | 24 | 34 | 64 | 34 | 132 |
Wind waves Height (m) Direction Period (s) | E 7 | E 7 | E 7 | E 6 | E 6 | E 6 | E 6 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 6 | E 7 | — | E 7 | E 7 | E 7 | E 8 | E 8 | ENE 7 | — | — |
| kJ | 148 | 152 | 152 | 132 | 132 | 135 | 163 | 279 | 253 | 183 | 210 | 233 | 199 | 215 | 253 | — | 212 | 183 | 181 | 163 | 145 | 97 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 9 | 8 | 15 | 9 | 12 | 12 | 8 | 8 | 8 | 12 | 12 | 12 | 8 | 8 | 0 | 2 | 0 | 0 | 2 | 9 | 0 | 0 | 0 |
Best forecast wave conditions in Oahu | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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