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Power Plant surfForecast / HAW – Oahu / USA
48hr Weather and Surf, issued 7 am Sunday 31 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 (31 May):
- Morning surf: Morning surf (31 May, local time) - 3ft (0.9m), 15s period with SSW swell.
- Afternoon surf: Afternoon surf (31 May, local time) - 2.5ft (0.8m), 15s period with SSW swell.
- Evening surf: Evening surf (31 May, local time) - 2.5ft (0.8m), 14s period with SSW swell.
The current surf forecast for Power Plant at 2PM is: 0.8m 15s primary swell from a South-southwest direction (forecast issued at 07:00am May 31). An open ocean swell of 0.7m 8s is not directed at the surf break. The wind direction is predicted to be glassy and the swell rating is 2.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 May) | 3ft (0.9m) | 15s |
| Afternoon (31 May) | 2.5ft (0.8m) | 15s |
| Evening (31 May) | 2.5ft (0.8m) | 14s |
Table - waves today at Power Plant. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastSome drizzle, heaviest during Sun afternoon. Warm (max 26°C on Mon afternoon, min 23°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Sunday 31 | Monday 1 | Tuesday 2 | Wed 3 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | S 20 | S 19 | S 19 | S 18 | SSW 18 | S 18 | S 18 | SSW 17 | S 17 | S 16 | S 20 | S 20 | S 16 | S 19 | SSW 17 | S 18 | SSW 18 | SSW 18 | |
406 | 390 | 370 | 288 | 280 | 276 | 276 | 365 | 361 | 436 | 534 | 639 | 632 | 505 | 582 | 542 | 618 | 753 | 752 | 752 | 1009 | 1421 | 1081 | 919 | |
Wind (km/h) | ||||||||||||||||||||||||
off | off | glassy | glassy | glassy | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | |
High Tide | 3:07AM0.24m | 4:26PM0.72m | 3:42AM0.23m | 5:03PM0.71m | 4:17AM0.22m | 5:40PM0.70m | ||||||||||||||||||
Low Tide | 8:36AM0.04m | 00:07AM0.17m | 9:08AM0.05m | 00:52AM0.17m | 9:41AM0.05m | 1:38AM0.17m | ||||||||||||||||||
 |  |  | |  |  | | | | | | | | | | | | | | | | | | | |
 | 5:50 | — | — | — | — | — | — | — | 5:50 | — | — | — | — | — | — | — | 5:48 | — | — | — | — | — | — | 5:48 |
 | — | — | — | — | 7:09 | — | — | — | — | — | — | — | 7:09 | — | — | — | — | — | — | — | 7:10 | — | — | 7:10 |
— | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 23 | 24 | 25 | 25 | 25 | 25 | 24 | 24 | 23 | 24 | 25 | 26 | 26 | 25 | 24 | 24 | 24 | 24 | 25 | 26 | 26 | 25 | 25 | 24 |
24 | 26 | 28 | 28 | 28 | 27 | 25 | 25 | 24 | 25 | 27 | 28 | 26 | 26 | 24 | 25 | 25 | 24 | 25 | 25 | 25 | 25 | 26 | 25 | |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | S 18 | SSW 18 | S 18 | S 18 | SSW 17 | S 17 | S 16 | S 20 | SSW 16 | S 16 | S 16 | SSW 17 | S 18 | SSW 18 | SSW 18 |
 kJ | 406 | 390 | 370 | 288 | 280 | 276 | 276 | 346 | 273 | 436 | 534 | 639 | 632 | 505 | 582 | 542 | 618 | 653 | 752 | 612 | 1009 | 1421 | 1081 | 919 |
Swell 2 Height (m) Direction Period (s) | N 9 | N 9 | E 8 | E 8 | E 7 | N 11 | E 8 | S 19 | S 19 | S 14 | S 14 | E 8 | E 8 | S 13 | S 13 | S 21 | SSW 16 | S 20 | ENE 6 | S 19 | NNW 11 | NNW 11 | ENE 6 | SSW 14 |
| kJ | 81 | 79 | 55 | 55 | 40 | 116 | 41 | 365 | 361 | 200 | 195 | 57 | 55 | 125 | 125 | 436 | 346 | 753 | 68 | 752 | 167 | 158 | 70 | 350 |
Swell 3 Height (m) Direction Period (s) | E 8 | E 8 | N 9 | N 9 | N 9 | E 7 | S 20 | N 10 | E 8 | E 8 | E 8 | N 10 | SSW 13 | S 21 | S 21 | S 13 | S 14 | N 9 | SSW 20 | E 6 | S 20 | SE 9 | NNW 11 | ENE 7 |
| kJ | 55 | 55 | 44 | 43 | 57 | 40 | 276 | 108 | 57 | 57 | 57 | 68 | 137 | 329 | 332 | 125 | 179 | 40 | 634 | 68 | 373 | 3 | 150 | 58 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | ENE 7 | — | ENE 7 | ENE 8 | ENE 8 | — | — | — | E 7 | E 7 | ENE 6 | ENE 6 | ENE 6 | — | — | E 6 | ENE 6 | — | — |
| kJ | — | — | — | — | — | 48 | — | 62 | 64 | 64 | — | — | — | 70 | 62 | 60 | 64 | 68 | — | — | 84 | 74 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 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 | ||||||||||||||||||||||||
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