
Surf Forecasts:
Windmills surf forecast from 5 Sep 2026:
- Best quality surf: Sunday 6 Sep, 11AM (local time) - 10ft (3.0m), 12s period, WSW swell with cross-shore winds.
- Most powerful swell: Sunday 6 Sep, 11PM (local time) - 10ft (3.0m), 17s period, WSW swell with 6,015 kJ wave energy.
- Next surfable swell (1★+): Sunday 6 Sep, 11AM (local time) - 10ft (3.0m), 12s 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 Sunday (Sep 06) at 11AM. The primary swell is predicted to be 3.0m and 12s period with a secondary swell of 0.7m and 20s. Another secondary swell of 0.6m and 4s is also forecast. The wind is predicted to be cross-shore as the swell arrives.
The most powerful waves expected at Windmills in the next 16 days are 3.0m 17s and forecast to arrive on Sunday (Sep 06) at 11PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 5s period and expected on Thursday (Sep 10) at 8AM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11AM (Sun 6th Sep) | 10ft (3.0m) 12s |
| Best Surf | 11AM (Sun 6th Sep) | 10ft (3.0m) 12s |
| Most Powerful | 11PM (Sun 6th Sep) | 10ft (3.0m) 17s |
Table - best surf conditions forecast for Windmills over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get into it for Windmills. We’ve got a solid 16-day window, but it’s going to be a tale of two halves. The first week is a bit of a mess, but the second week has some serious potential if you’ve got the skills.
The overall pattern is that a lot of strong, long-period WSW groundswell is on the way, but the wind is going to be a major player. Right from the start, we’re looking at a lot of lumpy, choppy conditions. The water temp is sitting at 65°, which is pretty normal for this time of year, so no need for a thick suit just yet.
The first few days are a write-off. Saturday morning, the 5th, kicks off with a 8ft WSW swell, but the wind is howling from the NNW at 22 mph, making it a cross-shore mess. The combined energy is a massive 2826 (moderate), but the quality is just poor. It’s the same story through Saturday afternoon and into Sunday the 6th – plenty of swell, 8ft again, but the wind is ruining it. The whole weekend is a bust.
Monday the 7th is a bit of a tease. The morning looks clean with a moderate ESE cross-off breeze and a 8ft WSW swell with a long 16-second period. The combined energy is 3705 (very strong). It’s marginal, but it’s the first clean window we’ve seen. The afternoon goes a bit choppy again.
Now, Monday the 8th is where it gets interesting, but only for the brave. The morning has a 10ft WSW swell, a 17-second period, and a clean ESE cross-off wind. The combined energy is a massive 5274 (very strong). This is a true expert-only zone. The swell is over 8ft, so it’s big. The afternoon is even better wind-wise, going glassy with an ENE breeze at 3 mph, but the swell is still 10ft. The tide and wind are favorable, but the size says 'experts only'.
The 9th is a standout. The afternoon is the pick of the first week. The wind goes glassy with an ESE breeze at 3 mph, and the swell is still a solid 8ft at 15 seconds, coming from the WSW. The combined energy is 2541 (very strong). This is excellent surf for experienced surfers. The morning has a fresh offshore wind, but that afternoon glass-off is the real deal. Expect clean, lined-up waves.
We get a bit of a breather on the 10th and 11th, with smaller 4ft to 5ft swells and decent conditions. The 11th afternoon has a 5ft swell with a very long 19-second period, which is groundswell gold. The combined energy is 2016 (very strong). The cross-off wind keeps it clean. This is a good chance for a fun session for the competent crew.
Then the wheels fall off. The 12th and 13th are a washout with strong onshore winds and rain. Saturday the 12th has a 31 mph WSW wind, making it completely unsurfable. For a couple of days, it’s not looking good for a paddle.
The 14th is a bit of a lull, but the 15th is a major highlight. Tuesday the 15th afternoon is a belter. The wind is glassy – absolutely dead calm – and the swell is a solid 8ft from the WSW at 16 seconds. The combined energy is 3421 (very strong). This is another excellent session for experienced surfers. The morning is clean too with a moderate offshore wind.
The 16th and 17th get messy again with onshore winds. The 18th is a joke – a 13ft swell on Friday afternoon, but with a 16 mph onshore wind. The energy is 7538 (very strong), but it’s a complete write-off. This is more interesting for kite surfers than paddle surfers.
The 19th and 20th are just massive. Saturday the 19th sees 13ft faces, and Sunday the 20th has a 15ft to 16ft monster swell from the WSW with a 18-second period. The combined energy on Sunday is 13034 (very strong), and it goes glassy in the morning. This is proper, big-wave territory. It’s only for the most experienced chargers. There’s a chance of a few clean ones for the pros, but the crowd will be inevitable for a spot like this, and it will be an all-time session for the few that are out.
The real standout in this whole period is the afternoon of the 9th of September for a clean, glassy session on a solid 8ft groundswell. The secondary standout is the 15th of September afternoon, also glassy on a 8ft swell. For the bigger swells, the 8th is a true expert session, but it’s a gamble.
Rusty.
Short Range ForecastLight rain (total 6mm), mostly falling on Sat morning. Very mild (max 17°C on Sat afternoon, min 9°C on Mon morning). Winds decreasing (strong winds from the SSE on Sat night, calm by Mon afternoon). | Days 4-6 Weather SummaryMostly dry. Very mild (max 19°C on Tue afternoon, min 10°C on Tue morning). Winds decreasing (fresh winds from the E on Wed morning, calm by Thu night). | ||||||||||||||||||||
Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | |||||||||||||||
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) | WSW 14 | W 13 | WSW 11 | WSW 12 | WSW 18 | WSW 17 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 15 | WSW 15 | WSW 14 | WSW 14 | WSW 15 | WSW 20 | WSW 19 | WSW 17 |
Wave Graph | |||||||||||||||||||||
2826 | 2199 | 1309 | 2327 | 1874 | 5807 | 3659 | 2961 | 3253 | 4660 | 4437 | 3393 | 2696 | 2258 | 1624 | 956 | 778 | 902 | 838 | 1968 | 2465 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross | cross | cross | cross-off | cross-off | cross-on | cross-off | cross-off | off | cross-off | off | off | off | off | cross-off | cross-off | cross | cross | cross-on |
High Tide | 5:29AM0.69m | 6:41AM0.71m | 7:38AM0.72m | 8:28AM0.70m | 11:47PM0.35m | 9:12AM0.64m | 10:53PM0.38m | 9:53AM0.57m | 10:40PM0.43m | ||||||||||||
Low Tide | 2:46PM0.00m | 3:20PM-0.02m | 3:54PM-0.01m | 4:24PM0.03m | 4:48PM0.09m | 1:32AM0.35m | 5:00PM0.18m | 3:02AM0.32m | 4:51PM0.25m | 4:03AM0.29m | |||||||||||
6:33 | — | — | 6:31 | — | — | 6:31 | — | — | 6:28 | — | — | 6:28 | — | — | 6:26 | — | — | 6:24 | — | — | |
— | 6:04 | — | — | 6:05 | — | — | 6:05 | — | — | 6:06 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | |
mm | 2 | 1 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 11 |
Temp °C | 16 | 17 | 16 | 15 | 17 | 13 | 12 | 17 | 13 | 14 | 19 | 16 | 14 | 19 | 18 | 14 | 18 | 17 | 17 | 18 | 18 |
Feels °C | 9 | 10 | 11 | 7 | 10 | 5 | 8 | 13 | 7 | 8 | 14 | 10 | 7 | 15 | 12 | 8 | 16 | 16 | 16 | 15 | 12 |
Swell 1 Height (m) Direction Period (s) | WSW 14 | W 14 | WSW 11 | WSW 12 | WSW 13 | WSW 17 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 15 | WSW 15 | WSW 14 | WSW 14 | WSW 15 | WSW 14 | WSW 19 | WSW 17 |
2826 | 529 | 1309 | 2327 | 1765 | 5807 | 3659 | 2961 | 3253 | 4660 | 4437 | 3393 | 2696 | 2258 | 1624 | 956 | 778 | 902 | 752 | 1968 | 2465 | |
Swell 2 Height (m) Direction Period (s) | — | — | WSW 22 | WSW 20 | WSW 18 | — | — | — | — | — | — | — | — | W 27 | WSW 26 | WSW 24 | N 6 | WSW 22 | WSW 20 | WSW 14 | WSW 13 |
— | — | 46 | 349 | 1874 | — | — | — | — | — | — | — | — | 14 | 66 | 109 | 41 | 263 | 838 | 733 | 613 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | WSW 22 | N 5 | N 4 | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 186 | 12 | 1 | — | — | |
Wind waves Height (m) Direction Period (s) | — | W 13 | S 4 | SSE 4 | S 4 | — | — | — | SE 3 | ESE 4 | — | E 4 | ENE 5 | NE 4 | NE 4 | NNE 6 | — | — | — | — | WNW 5 |
— | 2199 | 38 | 11 | 27 | — | — | — | 7 | 11 | — | 27 | 52 | 9 | 33 | 107 | — | — | — | — | 37 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 226 | 243 | 416 | 1685 | 48 | 4 | 4 | 4 | 11 | 11 | 1 | 17 | 35 | 0 | 63 | 81 | 0 | 0 | 81 | 0 | 89 |
Best forecast wave conditions in Margaret River | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
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 63 km (39 miles) from the city of Bunbury. If you plan a holiday in Margaret River, look for hotels and other accommodation in Bunbury. Bunbury has rooms for a wide range of budgets as well as car hire and transport links.










