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Surf Forecasts:
Power Plant surfForecast / HAW – Oahu / USA
48hr Weather and Surf, issued 7 pm 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
25.5° C
(Which is slightly warmer than usual)How big are the waves at Power Plant today?
The current surf forecast for Power Plant at 11PM is: 0.4m 15s primary swell from a South-southeast direction (forecast issued at 07:00pm May 12). An open ocean swell of 0.9m 10s is not directed at the surf break, a second open ocean swell of 1.7m 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) | - | - |
| 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 ForecastLight rain (total 7mm), mostly falling on Fri afternoon. Warm (max 26°C on Wed afternoon, min 23°C on Tue night). Winds decreasing (fresh winds from the ENE on Wed afternoon, calm by Fri afternoon). | ||||||||||||||||||||||||
Tue 12 | Wednesday 13 | Thursday 14 | Fri 15 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
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 | NW 13 | SSW 16 | SSW 16 | NW 12 | |
124 | 79 | 75 | 73 | 72 | 104 | 103 | 56 | 82 | 82 | 145 | 216 | 42 | 335 | 435 | 24 | 614 | 573 | 540 | 517 | 501 | 171 | 171 | 287 | |
Wind (km/h) | ||||||||||||||||||||||||
off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | cross-off | glassy | glassy | |
High Tide | 00:28AM0.44m | 2:05PM0.62m | 1:12AM0.39m | 2:43PM0.71m | 1:56AM0.34m | |||||||||||||||||||
Low Tide | 7:21PM0.26m | 6:58AM0.04m | 8:30PM0.23m | 7:24AM0.01m | 9:33PM0.20m | 7:55AM-0.01m | ||||||||||||||||||
 |  | |  | | | | | | | | | |  | | | | | | |  | | |  | |
 | — | — | — | — | 5:54 | — | — | — | — | — | — | — | 5:54 | — | — | — | — | — | — | — | 5:54 | — | — | — |
 | 7:01 | — | — | — | — | — | — | — | 7:01 | — | — | — | — | — | — | — | 7:02 | — | — | — | — | — | — | 7:02 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | 2 | |
Temp °C | 26 | 24 | 24 | 23 | 23 | 24 | 25 | 26 | 25 | 24 | 23 | 23 | 23 | 24 | 26 | 26 | 26 | 25 | 24 | 24 | 23 | 24 | 25 | 24 |
23 | 22 | 22 | 21 | 21 | 22 | 22 | 24 | 22 | 22 | 21 | 22 | 22 | 22 | 25 | 24 | 24 | 25 | 24 | 24 | 24 | 25 | 27 | 27 | |
Swell 1 Height (m) Direction Period (s) | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | E 7 | NNW 9 | NNW 9 | NNW 9 | N 6 | N 8 | E 7 | N 8 | NW 15 | NW 15 | NW 15 | NW 14 | NW 14 | NW 14 | NW 13 | NW 13 | NW 13 | NW 12 | NW 12 |
 kJ | 176 | 173 | 137 | 135 | 132 | 230 | 86 | 64 | 45 | 25 | 61 | 276 | 66 | 335 | 435 | 503 | 614 | 573 | 540 | 517 | 501 | 382 | 353 | 287 |
Swell 2 Height (m) Direction Period (s) | S 16 | S 16 | SSE 15 | SSE 15 | SSE 15 | NNW 9 | S 14 | SE 9 | SE 9 | SSW 14 | NW 17 | N 7 | NW 16 | N 8 | N 8 | N 8 | N 8 | N 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 |
| kJ | 124 | 79 | 75 | 73 | 72 | 98 | 103 | 40 | 39 | 82 | 145 | 48 | 271 | 64 | 48 | 49 | 49 | 49 | 116 | 119 | 119 | 122 | 124 | 103 |
Swell 3 Height (m) Direction Period (s) | SE 9 | SE 9 | SW 16 | SW 16 | SSW 14 | S 15 | SE 9 | SW 15 | SSW 14 | NNW 9 | SSW 14 | NW 16 | SE 9 | SSW 14 | SSW 14 | SE 10 | SSE 10 | SSE 6 | N 8 | N 8 | SW 16 | SSW 16 | SSW 16 | SSW 16 |
| kJ | 19 | 21 | 65 | 65 | 41 | 104 | 20 | 56 | 82 | 30 | 81 | 216 | 42 | 113 | 80 | 24 | 61 | 14 | 49 | 49 | 129 | 171 | 171 | 169 |
Wind waves Height (m) Direction Period (s) | 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 7 | E 8 | E 8 | E 8 | ENE 7 | — | — | — | — | — |
| kJ | 176 | 167 | 287 | 295 | 261 | — | 246 | 205 | 187 | 232 | 276 | — | 212 | 178 | 155 | 159 | 142 | 117 | 97 | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 8 | 19 | 12 | 9 | 9 | 8 | 8 | 8 | 9 | 12 | 9 | 9 | 8 | 0 | 2 | 8 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Oahu | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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