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Power Plant surfForecast / HAW – Oahu / USA
48hr Weather and Surf, issued 1 am Saturday 23 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
25.6° C
(Which is normal for this time of year)How big are the waves at Power Plant today?
The current surf forecast for Power Plant at 9AM is: 0.6m 16s primary swell from a South direction (forecast issued at 01:00am May 23). An open ocean swell of 0.4m 10s is not directed at the surf break, a second open ocean swell of 2.1m 8s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (23 May) | 2ft (0.6m) | 16s |
| Afternoon (23 May) | 2.5ft (0.7m) | 15s |
| Evening (23 May) | 2.5ft (0.7m) | 15s |
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 25°C on Sun morning, min 22°C on Sat night). Mainly fresh winds. | ||||||||||||||||||||||||
Saturday 23 | Sunday 24 | Monday 25 | ||||||||||||||||||||||
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 | 5 PM | 8 PM | 11 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
S 16 | S 16 | S 16 | S 16 | S 16 | S 15 | S 15 | S 15 | S 15 | S 14 | S 14 | S 13 | S 13 | S 14 | NW 12 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | |
188 | 183 | 183 | 181 | 236 | 215 | 212 | 157 | 155 | 144 | 131 | 92 | 92 | 93 | 112 | 142 | 142 | 144 | 64 | 142 | 131 | 87 | 85 | 84 | |
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 | 11:31AM0.34m | 10:06PM0.53m | 12:27PM0.43m | 10:55PM0.47m | 1:08PM0.51m | |||||||||||||||||||
Low Tide | 5:03AM0.11m | 3:27PM0.28m | 5:32AM0.09m | 5:26PM0.31m | 5:58AM0.08m | 7:02PM0.30m | ||||||||||||||||||
 |  |  |  | | | | | | | | | |  | | | | | | | | | | | |
 | — | 5:50 | — | — | — | — | — | — | — | 5:50 | — | — | — | — | — | — | — | 5:50 | — | — | — | — | — | — |
 | — | — | — | — | — | 7:07 | — | — | — | — | — | — | — | 7:07 | — | — | — | — | — | — | — | 7:07 | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 23 | 22 | 23 | 23 | 24 | 24 | 23 | 23 | 23 | 22 | 23 | 25 | 25 | 24 | 23 | 23 | 23 | 23 | 23 | 25 | 25 | 24 | 23 | 23 |
19 | 19 | 19 | 18 | 20 | 20 | 20 | 20 | 20 | 20 | 19 | 21 | 21 | 20 | 21 | 20 | 20 | 20 | 20 | 22 | 21 | 21 | 21 | 20 | |
Swell 1 Height (m) Direction Period (s) | S 16 | S 16 | S 16 | S 16 | S 16 | S 15 | S 15 | NNW 14 | NW 13 | ENE 8 | NW 13 | NW 12 | NW 12 | NW 12 | NW 12 | S 14 | NNW 11 | NNW 11 | NW 11 | S 14 | S 14 | S 13 | S 13 | S 13 |
 kJ | 188 | 183 | 183 | 181 | 236 | 215 | 212 | 175 | 183 | 404 | 170 | 154 | 149 | 147 | 112 | 142 | 84 | 82 | 59 | 142 | 131 | 87 | 85 | 84 |
Swell 2 Height (m) Direction Period (s) | NNW 11 | NNW 10 | NNW 10 | NNW 16 | NNW 16 | NNW 15 | NNW 14 | S 15 | S 15 | NW 13 | S 14 | S 13 | S 13 | S 14 | S 13 | NW 12 | S 14 | S 14 | S 14 | NW 11 | NW 11 | NW 11 | NW 11 | NW 10 |
| kJ | 45 | 43 | 42 | 103 | 142 | 146 | 186 | 157 | 155 | 175 | 131 | 92 | 92 | 93 | 88 | 108 | 142 | 144 | 64 | 58 | 57 | 56 | 40 | 28 |
Swell 3 Height (m) Direction Period (s) | S 13 | SSW 13 | SSW 13 | NNW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | S 14 | SSE 11 | S 16 | S 16 | S 16 | S 16 | SSE 11 | SSE 11 | SSE 11 | S 12 | SE 9 | SSE 10 | SSE 10 | SSE 10 | S 17 |
| kJ | 90 | 58 | 58 | 41 | 26 | 26 | 25 | 25 | 24 | 144 | 11 | 46 | 46 | 46 | 46 | 12 | 11 | 11 | 45 | 3 | 9 | 10 | 9 | 24 |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | — | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 |
| kJ | 527 | 523 | 523 | 688 | 666 | 592 | 527 | 511 | 463 | — | 404 | 427 | 406 | 385 | 349 | 346 | 340 | 318 | 283 | 240 | 259 | 245 | 240 | 212 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 160 | 158 | 170 | 170 | 19 | 178 | 19 | 19 | 19 | 0 | 158 | 160 | 158 | 158 | 9 | 19 | 19 | 15 | 8 | 8 | 158 | 9 | 8 | 19 |
Best forecast wave conditions in Oahu | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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