Surf Forecasts:
Windmills surf forecast from 15 Sep 2026:
- Most powerful swell: Thursday 17 Sep, 11AM (local time) - 6ft (1.8m), 10s period, ENE swell with 609 kJ wave energy.
Best Forecast Surf Conditions for Windmills this week:
The most powerful waves expected at Windmills in the next 16 days are 1.8m 10s and forecast to arrive on Thursday (Sep 17) at 11AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 18s period and expected on Friday (Sep 18) at 2AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11AM (Thu 17th Sep) | 6ft (1.8m) 10s |
Table - best surf conditions forecast for Windmills over the next 16 days.
The Lowdown
Alright, folks, Rusty here. Let's have a look at what's on the cards for Windmills over the next couple of weeks. I gotta be straight with you – it's a tough stretch. The wind is just not playing ball.
The whole 16-day window is essentially a bust for decent paddle surfing. The wind is locked in from the ENE, blowing cross-shore or cross-off at best, but mostly just strong enough to mess things up. I'm looking at the whole first week, from Tuesday the 15th right through to the end of September, and there's nothing I can point to and say "go get it." The combined wave energy jumps up from moderate readings (274) to strong (609) in the middle of the week, with swell heights pushing 6ft to 7ft on the 22nd, but it's all for nothing with that fresh, lumpy cross-chop. The ocean will have plenty of push, but it'll be a bumpy, blown-out mess. For a reef break that needs clean conditions to be any good, this is just frustrating. Honestly, with that strong cross-shore wind and decent-sized, short-ish period swell, this setup looks a lot more interesting for kite surfing than for paddling into waves.
There is a tiny glimmer at the very end of the outlook on the 25th. A long-period groundswell from the NW shows up with a period of 21 seconds, but the swell height is tiny, at 1ft. The energy reading is decent (320), but there's just not enough water moving to be rideable, and it’s still blowing a moderate cross-shore breeze.
So, bottom line: we’ve got a solid 16-day gap with zero recommended sessions. For Windmills, this kind of blank run is pretty normal when the trade winds set in. Don't lose hope, though – forecasts can change, and it never stays poor forever. Keep an eye on the sky.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Wed night. Warm (max 27°C on Thu afternoon, min 25°C on Mon night). Winds increasing (light winds from the ENE on Mon night, fresh winds from the ENE by Thu afternoon). | Days 5-7 Weather SummarySome drizzle, heaviest during Thu night. Warm (max 27°C on Fri morning, min 25°C on Thu night). Mainly strong winds. | ||||||||||||||||||
Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | ||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||
Wave Height (m) Direction Period (s) | NE 8 | NE 8 | NE 5 | NE 7 | ENE 10 | ENE 5 | NE 10 | ENE 10 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 31 | 57 | 62 | 107 | 267 | 119 | 392 | 609 | 497 | 344 | 277 | 306 | 250 | 244 | 299 | 256 | 243 | 284 | 251 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-off | cross | cross | cross-off | cross | cross | cross-off | cross | cross | cross-off |
High Tide | 5:35AM0.70m | 3:52PM0.51m | 6:28AM0.66m | 3:17PM0.47m | 7:48AM0.63m | 9:50AM0.63m | 11:13AM0.66m | 11:58AM0.70m | 11:35PM0.35m | ||||||||||
Low Tide | 10:21PM0.12m | 11:42AM0.42m | 10:42PM0.14m | 1:04PM0.46m | 11:07PM0.17m | 11:38PM0.20m | 00:42AM0.24m | 3:13AM0.25m | 7:52PM0.30m | 4:46AM0.23m | |||||||||
 |  |  |  | | |  |  | | | | | | | | | | | | |
 | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — |
 | 6:30 | — | 6:29 | — | — | 6:28 | — | — | 6:27 | — | — | 6:25 | — | — | 6:24 | — | — | 6:23 | — |
mm | — | — | — | — | — | — | 1 | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 27 | 26 | 27 | 27 | 26 | 27 | 27 | 26 | 26 | 26 | 25 |
Feels °C | 26 | 28 | 26 | 27 | 27 | 26 | 26 | 27 | 25 | 25 | 24 | 25 | 25 | 25 | 26 | 26 | 24 | 24 | 23 |
Swell 1 Height (m) Direction Period (s) | NE 8 | SW 20 | SW 19 | SW 19 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 18 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SSW 16 | SSW 15 | SSW 15 | S 14 |
| kJ | 31 | 188 | 133 | 183 | 154 | 249 | 188 | 125 | 124 | 300 | 241 | 227 | 208 | 206 | 206 | 169 | 79 | 146 | 100 |
Swell 2 Height (m) Direction Period (s) | SW 21 | E 12 | E 11 | E 11 | SSW 12 | SSW 11 | SSW 11 | SW 20 | SW 19 | W 10 | W 9 | W 9 | W 9 | S 15 | S 15 | S 13 | SW 15 | N 11 | SW 15 |
| kJ | 72 | 25 | 22 | 36 | 14 | 12 | 12 | 60 | 93 | 2 | 2 | 2 | 2 | 4 | 4 | 3 | 77 | 2 | 35 |
Swell 3 Height (m) Direction Period (s) | SSW 13 | SSW 13 | SSW 12 | SSW 12 | N 9 | SW 8 | SW 8 | SW 11 | SW 10 | SW 10 | NW 11 | NW 10 | NW 9 | W 9 | NW 8 | W 8 | N 11 | W 13 | W 12 |
| kJ | 17 | 16 | 15 | 15 | 7 | 3 | 3 | 5 | 4 | 4 | 5 | 4 | 3 | 2 | 3 | 1 | 3 | 3 | 3 |
Wind waves Height (m) Direction Period (s) | NE 4 | NE 8 | NE 5 | NE 7 | ENE 10 | ENE 5 | NE 10 | ENE 10 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
| kJ | 19 | 57 | 62 | 107 | 267 | 119 | 392 | 609 | 497 | 344 | 277 | 306 | 250 | 244 | 299 | 256 | 243 | 284 | 251 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 4 | 12 | 15 | 12 | 15 | 15 | 15 | 17 | 17 | 17 | 17 | 19 | 15 | 17 | 17 | 15 | 17 | 15 | 15 |
Best forecast wave conditions in Maui | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Windmills 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 Windmills Surf forecast
The above surf forecast table for Windmills provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Windmills can be found by selecting the local surf guide option on the grey menu. Our Windmills 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 (Windmills) 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 Windmills 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.
Windmills is 20 km (12 miles) from Wailuku. If you plan a vacation in Maui, look for hotels and other accommodation in Wailuku. Wailuku has rooms for a wide range of budgets as well as car hire and transport links.
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