Surf Forecasts:
Windmills surf forecast from 10 Sep 2026:
- Most powerful swell: Sunday 13 Sep, 8PM (local time) - 4.5ft (1.4m), 8s period, NE swell with 262 kJ wave energy.
Best Forecast Surf Conditions for Windmills this week:
The most powerful waves expected at Windmills in the next 16 days are 1.4m 8s and forecast to arrive on Sunday (Sep 13) at 8PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 8s period and expected on Wednesday (Sep 16) at 8AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8PM (Sun 13th Sep) | 4.5ft (1.4m) 8s |
Table - best surf conditions forecast for Windmills over the next 16 days.
The Lowdown
Alright, Rusty here. Let's break down this 16-day run. It's a tough outlook for the paddle crew. The only spot with any life is Windmills, a reef break for the experienced. Water temp is 80°, dead average for the season.
The first chance is Wednesday afternoon, September 9th. We're looking at a 4ft swell from the ENE with a short, dumpy 8-second period. The combined energy is moderate (404). Wind is a cross-off breeze from the east at 15 mph, so the surface will be clean, but the call is still "marginal." Rain showers might be in the air. It's surfable if you're keen, but nothing special.
Then from Thursday morning, September 10th, things take a nosedive. The swell shrinks, the period gets shorter, and we get hammered by a solid week and a half of cross-shore winds from the ENE at 12 to 19 mph. Energy levels drop into the weak zone, often under 200 and as low as 56. Every session from the 10th through the 23rd of September is marked as "poor surf conditions." It's a long, ugly stretch of lumpy, cross-chop. The wind just doesn't let up.
There's a tiny light at the end of the tunnel. On the morning of Wednesday, September 23rd, the wind eases to a gentle 9 mph cross-off from the east, and the call shifts to "clean." Swell is a small 4ft from the ENE, period 8 seconds. Then Thursday, September 24th morning gets even better with a light 3 mph east wind, glassy clean, though the swell drops to 3ft. By Thursday afternoon, the wind is a whisper from the ESE, still cross-off, and the forecast actually says "surfable waves but very ordinary conditions" with 3ft of ENE swell. That's your pick of the litter.
The Best Bet: If you're itching to get wet, go for the morning of Thursday, September 24th. The swell is tiny at 3ft from the ENE, but with a 3 mph cross-off breeze, it'll be glassy and clean at Windmills. The energy is weak (131), but it's the cleanest window you'll get. Don't expect any power.
For the bulk of this forecast, with all that cross-shore wind and chop, this setup would honestly be more fun for kite surfing than paddle surfing. The conditions just aren't there for the surfer.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Wed afternoon. Warm (max 27°C on Wed afternoon, min 24°C on Sat morning). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 2mm), mostly falling on Sun night. Warm (max 26°C on Mon afternoon, min 24°C on Sat night). Wind will be generally light. | |||||||||||||||||||
Wed 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | ||||||||||||||
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) | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | NE 8 | NE 8 | NE 10 | NE 10 | ENE 10 | NE 9 | NE 9 | NE 8 | NE 9 | NE 8 | NE 8 | NE 8 | NE 7 | NE 8 | NE 7 |
Wave Graph  | ||||||||||||||||||||
 kJ | 163 | 153 | 222 | 163 | 127 | 192 | 173 | 220 | 235 | 129 | 77 | 75 | 232 | 238 | 129 | 187 | 99 | 56 | 164 | 56 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross | cross | cross | cross | cross | cross-off | cross | cross | cross-off | cross | cross | cross | cross | cross | cross | cross | cross | cross-off |
High Tide | 2:09PM0.85m | 2:14AM0.59m | 2:36PM0.81m | 2:54AM0.65m | 3:00PM0.75m | 3:33AM0.69m | 3:21PM0.68m | 4:12AM0.72m | 3:38PM0.62m | 4:51AM0.72m | 3:50PM0.56m | 5:35AM0.70m | 3:52PM0.51m | |||||||
Low Tide | 8:41PM0.19m | 8:03AM0.13m | 9:00PM0.16m | 8:46AM0.17m | 9:20PM0.14m | 9:28AM0.23m | 9:40PM0.12m | 10:09AM0.29m | 10:01PM0.12m | 10:52AM0.36m | 10:21PM0.12m | 11:42AM0.42m | 10:42PM0.14m | |||||||
 |  |  | |  | |  | | | |  | | | | | | | | |  | |
 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — |
 | 6:35 | — | — | 6:34 | — | — | 6:32 | — | — | 6:31 | — | — | 6:30 | — | — | 6:30 | — | — | 6:29 | — |
mm | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | 1 | — | 2 | 3 |
Temp °C | 27 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 27 | 26 |
Feels °C | 29 | 27 | 26 | 25 | 24 | 25 | 25 | 25 | 25 | 25 | 26 | 25 | 25 | 25 | 26 | 27 | 28 | 28 | 29 | 27 |
Swell 1 Height (m) Direction Period (s) | ENE 8 | NW 9 | NW 8 | E 11 | E 11 | SW 16 | SW 15 | SW 15 | SW 15 | NNE 9 | NE 9 | NE 9 | SW 15 | SSW 14 | SW 14 | SW 22 | SW 21 | NE 7 | SW 19 | E 8 |
| kJ | 100 | 81 | 40 | 66 | 63 | 91 | 80 | 78 | 82 | 67 | 77 | 75 | 33 | 20 | 31 | 73 | 72 | 56 | 133 | 74 |
Swell 2 Height (m) Direction Period (s) | NW 10 | E 12 | E 12 | SSW 12 | SW 16 | SW 9 | SW 9 | SW 9 | WSW 8 | SW 14 | ENE 9 | SW 15 | WNW 13 | SSW 12 | NW 12 | SW 14 | SW 13 | SW 20 | SSW 12 | NE 7 |
| kJ | 141 | 76 | 72 | 61 | 94 | 13 | 12 | 12 | 7 | 46 | 27 | 55 | 17 | 14 | 6 | 30 | 27 | 188 | 15 | 56 |
Swell 3 Height (m) Direction Period (s) | E 13 | SSW 13 | SSW 13 | SW 18 | NW 9 | SSW 12 | NW 9 | WNW 8 | S 11 | WSW 16 | SW 13 | SSW 12 | SW 12 | SW 24 | SW 24 | SW 9 | E 8 | E 8 | E 11 | SW 19 |
| kJ | 119 | 67 | 65 | 80 | 14 | 13 | 12 | 7 | 9 | 25 | 46 | 14 | 6 | 22 | 22 | 3 | 6 | 29 | 10 | 183 |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | NE 8 | NE 8 | NE 10 | NE 10 | ENE 10 | ENE 4 | ENE 9 | NE 8 | NE 9 | NE 8 | NE 8 | NE 8 | — | NE 8 | — |
| kJ | 163 | 153 | 222 | 163 | 127 | 192 | 173 | 220 | 235 | 129 | 7 | 68 | 232 | 238 | 129 | 187 | 99 | — | 164 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 15 | 15 | 17 | 15 | 15 | 12 | 15 | 4 | 11 | 9 | 9 | 9 | 15 | 15 | 15 | 15 | 4 | 9 | 12 | 15 |
Best forecast wave conditions in Maui | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
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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.
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