
Surf Forecasts:
Windmills surf forecast from 5 Aug 2026:
- Best quality surf: Wednesday 5 Aug, 11AM (local time) - 11ft (3.5m), 16s period, WSW swell with cross-onshore winds.
- Most powerful swell: Saturday 8 Aug, 8PM (local time) - 16ft (5.0m), 17s period, WSW swell with 16,068 kJ wave energy.
- Next surfable swell (1★+): Wednesday 5 Aug, 11AM (local time) - 11ft (3.5m), 16s 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 Wednesday (Aug 05) at 11AM. The primary swell is predicted to be 3.5m and 16s period. The wind is predicted to be cross-onshore as the swell arrives.
The most powerful waves expected at Windmills in the next 16 days are 5.0m 17s and forecast to arrive on Saturday (Aug 08) at 8PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11AM (Wed 5th Aug) | 11ft (3.5m) 16s |
| Best Surf | 11AM (Wed 5th Aug) | 11ft (3.5m) 16s |
| Most Powerful | 8PM (Sat 8th Aug) | 16ft (5.0m) 17s |
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 we've got coming down the line. This is a tricky one, I gotta be honest with ya. The bulk of the next 16 days is going to be a write-off for most of us, but there's a few windows that might just get your heart racing if you're patient and you've got the right board.
For the most part, we're looking at a massive, powerful, and unruly ocean. The forecast is dominated by a serious, long-period groundswell that's just going to be too mean for the average paddle. The water's sitting at a balmy 66°F, which is a touch warmer than usual for this time of year, so at least you won't be freezing while you're getting hammered.
The first week is a real struggle. From Wednesday the 5th right through to Tuesday the 11th, the swell is just too big, pushing 10 ft to 15 ft, and the wind is almost always onshore or cross-onshore, making a mess of things. The energy is massive, often in the thousands (6037 to 12246), but it's not surfable. You'd be a fool to try. This is strictly a "watch from the cliff" kind of period.
Now, here's where it gets interesting. The first real standout arrives on Wednesday, August the 12th. This is your window. The swell drops to a still-very-chunky 8 ft, coming from the SW with a long 16-second period. The energy is still significant (3383), but that's for experienced surfers only. The kicker is the wind. We get a cross-offshore breeze in the morning and then *glassy* conditions by the afternoon. The break is Windmills, and for a short window, it's going to be clean. This is big, powerful, groundswell. It's going to be a freight train, so only for the experts who can handle the size and the current. The long period means there will be plenty of time between sets, so you can get your breath back.
The following day, Thursday, August the 13th, is another promising one. The swell is still 8 ft to 10 ft with a very long period of 17 to 18 seconds. The energy is still high (4374 to 5254), but again, the wind gods are smiling. We get clean cross-offshore breezes in the morning and glassy conditions in the afternoon. This is a high-performance setup, but again, it's for the experienced crew. The long period will make the waves stand up tall and wall up, but at a beach break like this, they might be a bit too straight and hard to ride. Still, the conditions will be pristine.
The following week gets messy again. There's a marginal window on Friday, August the 14th with a smaller 7 ft to 8 ft swell and clean cross-offshore winds, but the energy drops off a cliff (2362 to 2541), and it's only rated as marginal. It's a maybe, but not a standout.
The rest of the forecast is a washout. The swell pumps back up to 10 ft to 16 ft, the wind turns onshore or cross-onshore, and the energy goes through the roof (up to 14277). It's just a big, angry, blown-out mess until the very end of the period.
So, to sum it up for you: The best on offer is the Wednesday the 12th and Thursday the 13th of August. The surf will be big, powerful, and clean. It's a rare treat for the experienced surfer, but if you're a beginner, stay well clear. The rest of the 16 days is a long, painful gap with no real recommendations. It's a tough run, but when it finally comes together, it looks like it could be a session to remember... for the right people.
Stay safe, and check the tides.
Rusty.
Short Range ForecastModerate rain (total 13mm), heaviest on Thu afternoon. Very mild (max 17°C on Wed morning, min 12°C on Fri night). Winds increasing (light winds from the WNW on Wed morning, near gales from the SW by Fri night). | Days 4-6 Weather SummaryModerate rain (total 14mm), heaviest on Sat morning. Very mild (max 16°C on Sun afternoon, min 11°C on Sat morning). Winds decreasing (near gales from the SW on Sat morning, moderate winds from the SW by Sat night). | ||||||||||||||||||||
Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 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 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 15 | WSW 15 | WSW 14 | WSW 15 | WSW 16 | WSW 17 | WSW 16 | WSW 16 | WSW 14 | WSW 12 | WSW 16 | WSW 16 | WSW 16 | WSW 15 | WSW 15 |
Wave Graph | |||||||||||||||||||||
6037 | 6702 | 6345 | 4986 | 5230 | 5101 | 4591 | 4557 | 8490 | 11131 | 15123 | 13040 | 7267 | 4948 | 5186 | 7516 | 11654 | 11197 | 7854 | 6148 | 4346 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross | cross | on | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 3:21AM0.59m | 4:32AM0.65m | 5:41AM0.71m | 6:43AM0.76m | 7:39AM0.80m | 8:30AM0.81m | |||||||||||||||
Low Tide | 3:32PM0.23m | 2:52PM0.14m | 3:11PM0.05m | 3:43PM-0.02m | 4:20PM-0.06m | 4:58PM-0.07m | 5:36PM-0.04m | ||||||||||||||
7:09 | — | — | 7:07 | — | — | 7:07 | — | — | 7:05 | — | — | 7:05 | — | — | 7:03 | — | — | 7:03 | — | — | |
— | 5:43 | — | — | 5:44 | — | — | 5:44 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — | |
mm | 1 | 2 | — | — | 2 | 3 | — | — | 5 | 3 | 1 | — | — | — | 5 | 1 | 2 | 2 | — | — | — |
Temp °C | 17 | 17 | 17 | 17 | 17 | 16 | 14 | 15 | 15 | 12 | 12 | 14 | 15 | 16 | 16 | 12 | 14 | 15 | 15 | 16 | 15 |
Feels °C | 13 | 13 | 12 | 11 | 10 | 11 | 7 | 6 | 5 | 0 | 1 | 9 | 10 | 10 | 9 | 1 | 5 | 7 | 8 | 10 | 10 |
Swell 1 Height (m) Direction Period (s) | WSW 16 | WSW 16 | WSW 16 | WSW 16 | — | WSW 16 | WSW 15 | — | — | — | — | WSW 17 | WSW 16 | WSW 16 | — | — | WSW 15 | WSW 16 | WSW 16 | WSW 15 | WSW 15 |
6037 | 6702 | 6345 | 4986 | — | 5101 | 4591 | — | — | — | — | 13040 | 7267 | 4948 | — | — | 5300 | 5362 | 7854 | 6148 | 4346 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | NW 12 | WSW 22 | NW 12 | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | 6 | 308 | 5 | — | — | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | NW 12 | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | 5 | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | WNW 5 | WSW 16 | — | — | WSW 15 | WSW 14 | WSW 15 | WSW 16 | — | — | WSW 16 | WSW 14 | WSW 12 | WSW 16 | WSW 16 | — | — | — |
— | — | — | 74 | 5230 | — | — | 4557 | 8490 | 11131 | 15123 | — | — | 2460 | 5186 | 7516 | 11654 | 11197 | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 36 | 36 | 63 | 243 | 271 | 1 | 271 | 366 | 1685 | 2011 | 2643 | 651 | 65 | 529 | 508 | 651 | 2022 | 4 | 1 | 4 | 1 |
Best forecast wave conditions in Margaret River | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
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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.











