Surf Forecasts:
Windmills surf forecast from 25 Aug 2026:
- Most powerful swell: Tuesday 1 Sep, 2AM (local time) - 5.5ft (1.7m), 8s period, ENE swell with 356 kJ wave energy.
Best Forecast Surf Conditions for Windmills this week:
The most powerful waves expected at Windmills in the next 16 days are 1.7m 8s and forecast to arrive on Tuesday (Sep 01) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 6s period and expected on Tuesday (Aug 25) at 5PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2AM (Tue 1st Sep) | 5.5ft (1.7m) 8s |
Table - best surf conditions forecast for Windmills over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s talk about what’s on offer for the next couple of weeks.
Well, straight up, I’m going to be honest with you – this is a rough stretch. We’re looking at a solid 16-day window, but the surf is going to be a struggle for most of it. The wind is locked in from the ENE, just blowing cross-shore the whole time, and that’s going to mess up any chance of getting clean, lined-up waves. The first few days are a total write-off. Tuesday the 25th, you’re looking at 0.7ft of windswell with a short period – that’s barely a ripple. The combined energy is a measly 8, so don’t even bother. The water temp is sitting at 81°F, which is about average for this time of year.
Things start to pick up a little from Wednesday the 26th, but honestly, the quality is still poor. The swell height climbs to 4ft on Wednesday morning, hitting 5ft by the afternoon, but it’s short-period windswell (5 seconds) and the wind is fresh and cross-shore. The combined energy climbs to 100, then 132, but it’s lumpy and messy. That’s the story for the next week and a half – the swell builds, but the wind just won’t cooperate. By the end of August, we’re seeing 6ft on the 30th with a 7-second period, and the energy is getting up there (253), but it’s still cross-shore and chopped up.
The best of a bad bunch comes in the second week. We start September with a bit of hope. The swell direction swings to the NE on the 1st, and the period pushes out to 8 seconds. By Wednesday the 2nd, the wind drops to a gentle breeze (9 mph), but it’s still cross-shore so there’s still a bit of chop. The combined energy hits 229 on the afternoon of the 2nd. It’s not great, but it’s the best we’ve seen.
For the standout, I’d have to point to Saturday the 5th of September. The morning sees a 5ft swell from the ENE with a very long period of 12 seconds and a combined energy of 716. That’s a proper groundswell. The wind is a moderate cross-shore (16 mph), so it’s not glassy, but the energy is there. Even though the score is only marginal, the long period means there’s real shape potential. Windmills is a reef break, so it’s the right spot for a long-period swell like this. It’s advanced, fairly consistent, and often crowded, so expect company. The swell direction is ENE, which is close to the optimum NNW, so it’s not ideal, but it’s the best we’ve got.
Sunday the 6th is similar, with a 5ft to 6ft ENE swell and an 11-second period, combined energy of 739 and 764. Again, marginal, but with that long period, it’s the only window where you might get a few decent ones. Just keep an eye on the wind – it’s still cross-shore, so it won’t be perfect.
After that, it fades. Monday the 7th drops to 4ft, and by Tuesday the 8th it’s back to 3ft. The only real glimmer is Wednesday the 9th, when the wind finally goes cross-offshore (19 mph) and the swell is 6ft with an 11-second period. That’s 754 combined energy. It’s clean, but it’s still a fresh breeze, so it’ll be a bit bumpy. Still, that’s the cleanest the wind gets in the whole outlook.
So, to sum it up: the first week is a bust. The second week has a few days where the swell has real energy and period, but the wind is always a problem. If you’re a dedicated surfer, aim for the 5th, 6th, or 9th of September. It’s not going to be epic, but it’s the only surf on offer.
Rusty.
Short Range ForecastSome drizzle, heaviest during Thu morning. Warm (max 26°C on Tue morning, min 24°C on Wed night). Mainly fresh winds. | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Fri night. Warm (max 26°C on Fri morning, min 25°C on Fri morning). Mainly fresh winds. | ||||||||||||||||||||
Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | |||||||||||||||
AM | PM | 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) | WNW 9 | WNW 10 | ENE 6 | ENE 5 | ENE 5 | NW 10 | ENE 5 | ENE 6 | ENE 5 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 |
Wave Graph | |||||||||||||||||||||
8 | 9 | 0 | 92 | 123 | 15 | 72 | 154 | 69 | 111 | 156 | 113 | 140 | 179 | 199 | 211 | 251 | 205 | 218 | 286 | 356 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | cross | cross | cross-off | cross | cross | cross-off | cross | cross | cross-off | cross | cross | cross | cross | cross | cross-off | cross | cross | cross-off |
High Tide | 2:09PM0.82m | 1:33AM0.46m | 2:32PM0.83m | 2:10AM0.51m | 2:54PM0.82m | 2:47AM0.56m | 3:15PM0.79m | 3:25AM0.61m | 3:35PM0.75m | 4:06AM0.64m | 3:54PM0.70m | 4:51AM0.67m | 4:12PM0.63m | ||||||||
Low Tide | 8:53PM0.27m | 7:25AM0.10m | 9:07PM0.25m | 8:01AM0.10m | 9:23PM0.22m | 8:37AM0.13m | 9:41PM0.19m | 9:14AM0.18m | 10:00PM0.16m | 9:53AM0.24m | 10:22PM0.13m | 10:36AM0.32m | 10:47PM0.12m | ||||||||
6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | |
— | 6:47 | — | — | 6:46 | — | — | 6:46 | — | — | 6:45 | — | — | 6:45 | — | — | 6:44 | — | — | 6:43 | — | |
mm | — | — | — | — | — | — | 1 | — | — | — | — | 2 | — | — | — | — | — | 1 | — | — | — |
Temp °C | 26 | 26 | 26 | 26 | 26 | 25 | 26 | 26 | 25 | 26 | 26 | 25 | 26 | 26 | 25 | 26 | 26 | 25 | 26 | 26 | 25 |
Feels °C | 25 | 24 | 24 | 23 | 23 | 23 | 24 | 24 | 24 | 24 | 24 | 23 | 24 | 24 | 23 | 24 | 24 | 23 | 25 | 24 | 23 |
Swell 1 Height (m) Direction Period (s) | SSW 12 | SW 16 | SSW 12 | SSW 14 | SSW 17 | SSW 17 | S 17 | S 16 | S 15 | SSW 14 | ENE 15 | E 14 | E 13 | SSW 12 | ENE 12 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 15 |
50 | 64 | 28 | 81 | 119 | 92 | 147 | 127 | 109 | 67 | 71 | 93 | 87 | 29 | 47 | 90 | 86 | 80 | 77 | 53 | 57 | |
Swell 2 Height (m) Direction Period (s) | SW 16 | SSW 12 | SSW 14 | SSW 18 | SSW 11 | SSW 13 | SSW 12 | SSW 12 | S 16 | ENE 15 | SSW 14 | SSW 13 | SSW 13 | SW 17 | SW 17 | ENE 11 | S 12 | S 11 | S 11 | S 11 | SSW 20 |
66 | 28 | 41 | 62 | 12 | 34 | 28 | 28 | 45 | 47 | 36 | 59 | 33 | 46 | 71 | 24 | 23 | 21 | 21 | 9 | 37 | |
Swell 3 Height (m) Direction Period (s) | WNW 9 | WNW 10 | SSW 18 | WNW 9 | WNW 10 | NW 10 | NW 10 | NW 9 | N 7 | S 15 | S 14 | SW 19 | WSW 18 | S 13 | SSW 12 | SSW 12 | W 10 | SW 19 | W 11 | SSW 18 | S 10 |
8 | 9 | 31 | 8 | 9 | 15 | 15 | 13 | 8 | 17 | 37 | 14 | 31 | 14 | 28 | 28 | 2 | 15 | 2 | 34 | 8 | |
Wind waves Height (m) Direction Period (s) | ENE 5 | ENE 6 | ENE 6 | ENE 5 | ENE 5 | ENE 5 | ENE 5 | ENE 6 | ENE 5 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 |
107 | 186 | 94 | 92 | 123 | 62 | 72 | 154 | 69 | 111 | 156 | 113 | 140 | 179 | 199 | 211 | 251 | 205 | 218 | 286 | 356 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 17 | 15 | 15 | 17 | 15 | 15 | 15 | 15 | 15 | 17 | 15 | 15 | 15 |
Best forecast wave conditions in Maui | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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.











