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Surf Forecasts:
Power Plant surfForecast / HAW – Oahu / USA
16 Day Weather and Surf, issued 7 pm Sunday 17 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 normal for this time of year)Best Forecast Surf Conditions for Power Plant this week:
The surf forecast for Power Plant over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (May 18) at 2AM. The primary swell is predicted to be 0.8m and 14s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Power Plant in the next 16 days are 0.9m 18s and forecast to arrive on Tuesday (May 19) at 5AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.3m 8s period and expected on Thursday (May 21) at 5PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Mon 18th May) | 2.5ft (0.8m) 14s |
| Best Surf | 11AM (Mon 18th May) | 2.5ft (0.7m) 19s |
| Most Powerful | 5AM (Tue 19th May) | 3ft (0.9m) 18s |
Table - best surf conditions forecast for Power Plant over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 26°C on Sun night, min 24°C on Sun night). Winds increasing (light winds from the ENE on Sun night, fresh winds from the ENE by Wed afternoon). | Days 5-7 Weather SummaryMostly dry. Warm (max 25°C on Thu morning, min 23°C on Wed night). Mainly fresh winds. | ||||||||||||||||||||
Monday 18 | Tuesday 19 | Wednesday 20 | Thursday 21 | Friday 22 | Saturday 23 | Sun 24 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
SSW 14 | SSW 19 | SSW 14 | SSW 14 | SSW 14 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 17 | S 16 | S 16 | S 15 | S 14 | S 18 | S 16 | S 16 | S 15 | S 15 | S 13 | S 13 | |
236 | 332 | 213 | 161 | 229 | 246 | 252 | 163 | 149 | 101 | 134 | 126 | 157 | 107 | 152 | 188 | 181 | 215 | 155 | 130 | 130 | |
Wind (km/h) | |||||||||||||||||||||
off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | |
High Tide | 4:11AM0.22m | 5:43PM0.81m | 5:06AM0.20m | 6:35PM0.78m | 6:18AM0.19m | 7:28PM0.72m | 8:01AM0.20m | 8:22PM0.66m | 10:01AM0.25m | 9:15PM0.60m | 11:31AM0.34m | 10:06PM0.53m | 12:27PM0.43m | ||||||||
Low Tide | 00:36AM0.15m | 9:45AM-0.02m | 1:40AM0.14m | 10:27AM0.02m | 2:45AM0.14m | 11:14AM0.07m | 3:42AM0.13m | 12:10PM0.14m | 4:27AM0.12m | 1:30PM0.22m | 5:03AM0.11m | 3:27PM0.28m | 5:32AM0.09m | 5:26PM0.31m | |||||||
 |  |  |  | | | | | | | | | | | | | | | | | | |
 | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:50 | — | — | 5:50 | — | — | 5:50 | — |
 | 7:04 | — | 7:04 | — | — | 7:05 | — | — | 7:05 | — | — | 7:06 | — | — | 7:06 | — | — | 7:07 | — | — | 7:07 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 26 | 25 | 26 | 24 | 25 | 26 | 24 | 25 | 25 | 24 | 25 | 25 | 23 | 25 | 25 | 23 | 24 | 25 | 23 | 25 | 25 |
28 | 25 | 25 | 23 | 25 | 24 | 23 | 23 | 22 | 22 | 22 | 21 | 19 | 20 | 21 | 19 | 20 | 21 | 19 | 21 | 21 | |
Swell 1 Height (m) Direction Period (s) | ENE 8 | E 8 | E 8 | E 8 | ENE 8 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | S 16 | S 16 | S 15 | N 7 | S 14 | S 16 | S 16 | S 15 | S 15 | NNW 12 | NNW 12 |
 kJ | 147 | 190 | 161 | 134 | 107 | 246 | 252 | 163 | 149 | 101 | 134 | 126 | 157 | 32 | 94 | 188 | 181 | 215 | 155 | 101 | 94 |
Swell 2 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSE 7 | NNW 11 | NNW 10 | NNW 11 | NNW 10 | SSW 14 | SE 13 | SE 13 | S 14 | S 18 | S 13 | NNW 10 | NW 10 | NW 13 | S 13 | S 13 |
| kJ | 236 | 233 | 213 | 161 | 229 | 32 | 75 | 69 | 64 | 40 | 73 | 44 | 41 | 107 | 152 | 90 | 42 | 26 | 88 | 130 | 130 |
Swell 3 Height (m) Direction Period (s) | SSE 7 | SSW 19 | SSE 7 | SSE 7 | SSW 18 | NW 10 | SSE 9 | SE 9 | S 18 | SSW 17 | NW 10 | NNW 10 | NW 10 | SSE 12 | NNW 11 | NNW 11 | SE 12 | NNW 15 | NW 10 | S 16 | S 16 |
| kJ | 29 | 332 | 27 | 18 | 207 | 54 | 33 | 21 | 56 | 92 | 24 | 18 | 28 | 57 | 44 | 44 | 35 | 86 | 25 | 46 | 46 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | E 8 | ENE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 9 | E 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
| kJ | — | — | — | — | — | 131 | 197 | 333 | 383 | 493 | 587 | 709 | 593 | 465 | 548 | 521 | 394 | 428 | 438 | 350 | 310 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 1 | 0 | 0 | 8 | 0 | 12 | 19 | 20 | 15 | 286 | 19 | 160 | 170 | 158 | 158 | 160 | 8 | 8 | 158 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Power Plant surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Power Plant Surf forecast
The above surf forecast table for Power Plant provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Power Plant can be found by selecting the local surf guide option on the grey menu. Our Power Plant surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Power Plant) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Power Plant may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Power Plant is 5 km (3 miles) from Makakilo City. If you plan a vacation in Oahu, look for hotels and other accommodation in Makakilo City. Makakilo City has rooms for a wide range of budgets as well as car hire and transport links.
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