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Surf Forecasts:
Power Plant surfForecast / HAW – Oahu / USA
48hr Weather and Surf, issued 1 am Friday 29 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
25.3° C
(Which is normal for this time of year)How big are the waves at Power Plant today (29 May):
- Morning surf: Morning surf (29 May, local time) - 2.5ft (0.8m), 20s period with S swell.
- Afternoon surf: Afternoon surf (29 May, local time) - 3.5ft (1.0m), 19s period with S swell.
- Evening surf: Evening surf (29 May, local time) - 3.5ft (1.0m), 18s period with S swell.
The current surf forecast for Power Plant at 8AM is: 0.8m 20s primary swell from a South direction (forecast issued at 01:00am May 29). An open ocean swell of 1.0m 7s is not directed at the surf break. The wind direction is predicted to be offshore and the swell rating is 2.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (29 May) | 2.5ft (0.8m) | 20s |
| Afternoon (29 May) | 3.5ft (1.0m) | 19s |
| Evening (29 May) | 3.5ft (1.0m) | 18s |
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 Fri afternoon, min 22°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Friday 29 | Saturday 30 | Sunday 31 | ||||||||||||||||||||||
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 21 | S 21 | S 20 | S 20 | S 19 | S 19 | S 19 | S 18 | S 18 | S 18 | S 17 | S 17 | S 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | S 20 | |
445 | 436 | 515 | 618 | 745 | 730 | 693 | 642 | 627 | 613 | 617 | 589 | 555 | 437 | 427 | 421 | 416 | 406 | 390 | 296 | 288 | 280 | 276 | 276 | |
Wind (km/h) | ||||||||||||||||||||||||
off | off | off | off | off | off | off | off | off | off | off | off | cross-off | cross-off | off | off | off | off | off | glassy | glassy | glassy | cross-off | off | |
High Tide | 1:52AM0.28m | 3:18PM0.71m | 2:31AM0.26m | 3:51PM0.72m | 3:07AM0.24m | 4:26PM0.72m | ||||||||||||||||||
Low Tide | 7:37AM0.05m | 10:44PM0.19m | 8:06AM0.05m | 11:25PM0.17m | 8:36AM0.04m | |||||||||||||||||||
 |  |  | |  | | | | | | | | |  | | | | | | | | | | | |
 | — | 5:50 | — | — | — | — | — | — | — | 5:50 | — | — | — | — | — | — | — | 5:50 | — | — | — | — | — | — |
 | — | — | — | — | — | 7:08 | — | — | — | — | — | — | — | 7:09 | — | — | — | — | — | — | — | 7:09 | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 23 | 23 | 24 | 25 | 26 | 25 | 24 | 24 | 23 | 23 | 24 | 25 | 26 | 25 | 24 | 24 | 23 | 23 | 23 | 25 | 25 | 25 | 25 | 24 |
22 | 22 | 23 | 23 | 23 | 22 | 23 | 23 | 23 | 23 | 24 | 25 | 26 | 26 | 24 | 25 | 25 | 25 | 25 | 27 | 27 | 26 | 26 | 26 | |
Swell 1 Height (m) Direction Period (s) | NW 12 | NW 12 | E 7 | E 7 | S 19 | S 19 | S 19 | S 18 | S 18 | S 18 | S 17 | S 17 | S 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 |
 kJ | 137 | 135 | 89 | 77 | 745 | 730 | 693 | 642 | 627 | 613 | 617 | 589 | 555 | 437 | 427 | 421 | 416 | 406 | 390 | 296 | 288 | 280 | 276 | 276 |
Swell 2 Height (m) Direction Period (s) | S 21 | S 21 | S 20 | S 20 | NW 11 | NNW 11 | NNW 11 | S 13 | S 13 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | N 10 | E 7 | N 9 | N 9 | E 8 | E 8 | E 8 | N 11 | E 8 |
| kJ | 445 | 436 | 515 | 618 | 133 | 84 | 81 | 121 | 114 | 77 | 77 | 60 | 49 | 48 | 48 | 92 | 54 | 81 | 79 | 41 | 41 | 41 | 116 | 41 |
Swell 3 Height (m) Direction Period (s) | S 12 | S 12 | NW 11 | NW 11 | N 10 | N 10 | N 10 | NNW 11 | NNW 11 | NNW 11 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | E 7 | N 10 | E 8 | E 8 | N 9 | N 9 | N 9 | E 8 | S 20 |
| kJ | 67 | 65 | 133 | 133 | 70 | 47 | 47 | 79 | 78 | 75 | 95 | 78 | 102 | 75 | 100 | 54 | 90 | 55 | 55 | 44 | 43 | 42 | 41 | 276 |
Wind waves Height (m) Direction Period (s) | E 7 | E 7 | — | — | E 7 | E 7 | E 6 | E 7 | E 7 | — | E 7 | — | — | — | ENE 7 | — | ENE 7 | — | — | — | — | ENE 7 | ENE 7 | ENE 4 |
| kJ | 130 | 110 | — | — | 94 | 134 | 98 | 92 | 77 | — | 59 | — | — | — | 68 | — | 76 | — | — | — | — | 62 | 73 | 18 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 8 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 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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