
Surf Forecasts:
Windmills surf forecast from 8 Sep 2026:
- Best quality surf: Monday 7 Sep, 11PM (local time) - 8ft (2.5m), 15s period, WSW swell with offshore winds.
- Most powerful swell: Monday 7 Sep, 11PM (local time) - 8ft (2.5m), 15s period, WSW swell with 3,040 kJ wave energy.
- Next surfable swell (1★+): Monday 7 Sep, 11PM (local time) - 8ft (2.5m), 15s period with WSW swell.
Best Forecast Surf Conditions for Windmills this week:
The surf forecast for Windmills over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Sep 07) at 11PM. The primary swell is predicted to be 2.5m and 15s period with a secondary swell of 1.7m and 12s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Windmills in the next 16 days are 2.5m 15s and forecast to arrive on Monday (Sep 07) at 11PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 14s period and expected on Tuesday (Sep 08) at 2AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Mon 7th Sep) | 8ft (2.5m) 15s |
| Best Surf | 11PM (Mon 7th Sep) | 8ft (2.5m) 15s |
| Most Powerful | 11PM (Mon 7th Sep) | 8ft (2.5m) 15s |
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 the next couple of weeks.
Alright, I’m not gonna sugarcoat it – this is a grim stretch for surfing. We’re looking at a long, long blank run with almost nothing worth paddling out for. The first real chance of anything doesn’t come until the very end of this 16-day window. You’re looking at roughly two weeks of poor to marginal conditions before we see a tiny flicker of life.
The only spot in the mix is Windmills. It’s an advanced reef break, fairly consistent, but it’s going to be a waiting game.
The first half of the period is basically a write-off. We’ve got lots of onshore and cross-shore wind from the ENE and E, with swell mostly small and weak. The combined swell energy barely cracks triple digits most days, sitting around 100 to 200 – that’s weak, messy energy. There are a few cleaner windows Tuesday afternoon (September 8th), but the swell is only 4 ft from the ENE, which is not the optimum direction for this break – Windmills wants it from the NNW. The water is warm, sitting at about 80°F, which is average for this time of year.
Things get a bit more interesting around Thursday the 17th of September in the afternoon. A new swell starts to fill in from the NNW, the optimum direction. We get 3 ft with a long period of 13 seconds out of the NNW, and the wind goes cross-off from the ENE at 16 mph. The combined energy jumps to 449 (moderate energy). The water temp is about average for the season. This makes for a clean, lined-up reef set, but the size is small. It’s surfable but nothing to write home about.
The morning of Friday the 18th of September is the best you’ll see. Swell from the NNW builds to 4 ft with a solid 12-second period (good energy, 426 combined energy). Wind is cross-shore from the ENE at 12 mph, which is okay for that reef, but it’s not glassy. The direction matches the optimum, so the reef will be working. The water is still about average temp. It’s an advanced wave, and with that longer period, it’ll have some punch for the size. It’s the best on offer in this whole outlook, but let’s be clear – it’s a very modest highlight in a desert of flatness.
From there, it fades through the weekend and into the next week with smaller, weaker NNW swell and persistent cross-shore winds. The last couple of days show cleaner cross-off winds, but the swell drops below 3 ft and the energy falls back under 300. Nothing special.
So, bottom line: if you’re desperate, the morning of Friday the 18th at Windmills is the only real call. Keep it on the radar, but don’t hold your breath.
Rusty.
Short Range ForecastModerate rain (total 11mm), heaviest on Mon afternoon. Warm (max 29°C on Tue afternoon, min 26°C on Tue night). Winds decreasing (fresh winds from the E on Mon afternoon, calm by Tue night). | Days 5-7 Weather SummaryMostly dry. Warm (max 26°C on Thu afternoon, min 25°C on Thu afternoon). Wind will be generally light. | |||||||||||||||||||
Mon 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | ||||||||||||||
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 12 | ENE 12 | WSW 11 | ENE 11 | NE 9 | NE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | NE 8 | ENE 10 | ENE 10 | NE 9 | ENE 9 | ENE 9 | NE 8 | NE 9 |
Wave Graph | ||||||||||||||||||||
1138 | 689 | 815 | 382 | 173 | 100 | 98 | 193 | 148 | 170 | 131 | 136 | 196 | 143 | 75 | 253 | 86 | 70 | 132 | 61 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | cross-off | cross-off | glassy | cross | cross-off | cross-off | cross | cross | cross-off | cross | cross-off | cross-off | cross | cross | cross-off | cross | cross | cross |
High Tide | 00:45AM0.44m | 1:39PM0.86m | 1:31AM0.52m | 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 | |||||||
Low Tide | 8:05PM0.26m | 6:28AM0.11m | 8:22PM0.22m | 7:18AM0.11m | 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 | |||||||
— | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:13 | — | — | |
6:37 | — | — | 6:36 | — | — | 6:35 | — | — | 6:34 | — | — | 6:32 | — | — | 6:31 | — | — | 6:30 | — | |
mm | 2 | 2 | 1 | — | — | — | 3 | 3 | — | — | — | — | — | — | — | — | — | — | — | 2 |
Temp °C | 27 | 28 | 28 | 29 | 27 | 27 | 27 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
Feels °C | 25 | 29 | 28 | 30 | 30 | 31 | 28 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 25 | 25 | 26 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 14 | WSW 11 | ENE 11 | NE 9 | NE 8 | ENE 8 | ENE 7 | E 12 | E 11 | E 11 | SW 16 | SW 15 | NNE 7 | ENE 10 | SW 14 | ENE 9 | NNE 8 | ENE 9 | NE 9 |
799 | 3609 | 815 | 382 | 173 | 100 | 98 | 121 | 72 | 66 | 63 | 91 | 80 | 21 | 75 | 46 | 86 | 47 | 15 | 61 | |
Swell 2 Height (m) Direction Period (s) | SSW 15 | ENE 12 | ENE 11 | W 10 | W 7 | E 13 | NW 8 | E 12 | NW 9 | SSW 12 | SW 16 | SW 9 | SW 9 | SW 15 | NNE 8 | WSW 16 | NNE 9 | SW 15 | SW 15 | SSW 14 |
128 | 689 | 486 | 260 | 54 | 125 | 69 | 76 | 28 | 61 | 94 | 14 | 12 | 78 | 45 | 25 | 65 | 34 | 33 | 20 | |
Swell 3 Height (m) Direction Period (s) | NNW 14 | SSW 15 | SSW 15 | SSW 9 | SSW 14 | SSW 14 | E 13 | SSW 13 | SSW 13 | SW 18 | SSW 12 | NW 9 | NW 9 | SW 9 | SW 15 | WSW 8 | SW 14 | SSW 12 | SSW 12 | ENE 8 |
20 | 181 | 191 | 82 | 134 | 107 | 119 | 67 | 65 | 80 | 27 | 12 | 12 | 12 | 82 | 7 | 64 | 14 | 14 | 6 | |
Wind waves Height (m) Direction Period (s) | ENE 12 | — | S 5 | — | — | — | — | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | NE 8 | ENE 10 | — | NE 9 | — | ENE 9 | NE 8 | ENE 4 |
1138 | — | 66 | — | — | — | — | 193 | 148 | 170 | 131 | 136 | 196 | 143 | — | 253 | — | 70 | 132 | 11 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 9 | 0 | 14 | 0 | 0 | 9 | 12 | 17 | 15 | 15 | 15 | 11 | 9 | 9 | 9 | 2 | 9 | 18 | 18 | 18 |
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.










