Surf Forecasts:
The Window surf forecast from 14 Aug 2026:
- Best quality surf: Friday 21 Aug, 5PM (local time) - 15ft (4.5m), 20s period, SW swell with cross-offshore winds.
- Most powerful swell: Friday 21 Aug, 5PM (local time) - 15ft (4.5m), 20s period, SW swell with 17,226 kJ wave energy.
- Next surfable swell (1★+): Saturday 15 Aug, 2AM (local time) - 10ft (3.0m), 14s period with SW swell.
Best Forecast Surf Conditions for The Window this week:
The surf forecast for The Window over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Aug 15) at 2AM. The primary swell is predicted to be 3.0m and 14s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at The Window in the next 16 days are 4.5m 20s and forecast to arrive on Friday (Aug 21) at 5PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.3m 6s period and expected on Monday (Aug 17) at 8AM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Sat 15th Aug) | 10ft (3.0m) 14s |
| Best Surf | 5PM (Fri 21st Aug) | 15ft (4.5m) 20s |
| Most Powerful | 5PM (Fri 21st Aug) | 15ft (4.5m) 20s |
Table - best surf conditions forecast for The Window over the next 16 days.
The Lowdown
Right, let’s talk about The Window. This is a reef setup that needs a decent-sized south-west groundswell, and it looks like the ocean is going to offer up a real mixed bag over the next couple of weeks. The water temp is sittin’ at about 65.3°, which is roughly a degree and a half warmer than usual for this time of year – not a huge deal, but you might notice it’s a touch more comfortable than normal out there.
First up, the good news. This Friday afternoon, the 14th, is lookin’ proper. We’ve got a solid 10.0ft SW groundswell rolling in with a long 15-second period. The energy behind this is strong, clocking in at 4402, and the wind is glassy – a light 3 mph from the NW. It’s not huge, but it’s clean and powerful. Conditions like this are why we surf this spot. It’s a fairly consistent break, and while crowds are sometimes a thing here, on a Friday arvo with the ocean this clean, it’s hard to care. This is the standout of the week, no doubt.
Saturday the 15th and Sunday the 16th are a step down. The swell hangs in there, still around 7.5ft to 10.0ft, and the wind is cross-off or cross, which keeps it clean-ish. But the scores drop, and the vibe feels a little more marginal. Saturday morning has a 16 mph NNE cross-off, and by Sunday the wind picks up to a fresh 19 mph. It’s surfable, but it’s not gonna be the same as Friday. The energy is still moderate to strong, but the wind will make it a bit more of a battle.
Then the ocean just turns on us. From Monday the 17th through to Tuesday the 18th, the swell really jacks up – we’re talking 13.0ft to 16.0ft, with energy readings hitting over 13000. But it’s being driven by a near gale-force onshore wind (31 mph from the W). This is a proper storm surf, and for a reef break like this, it’s gonna be a blown-out, dangerous mess. This is expert territory only, and even then, it’s probably not worth the risk. The wave comment says it all: poor surf conditions. That’s a big red flag. We’re lookin’ at a few days of nothing but closeouts and white water.
Things start to settle a bit from Wednesday the 19th, but the wind is still cross-onshore. The swell is still big, around 13.0ft to 15.0ft, but it’s choppy and messy. Not the kind of conditions I’d be paddling out for. It’s a waiting game. The energy is still there, but the quality is junk.
Now, here’s where it gets interesting. The following week, there are a couple of true gems hidden in the forecast. Friday the 21st, the wind swings around to a light offshore from the ESE at 6 mph, and we’ve got a solid 10.0ft SW swell at 14 seconds. It’s clean, it’s got push, and for an experienced surfer, this is going to be worth the wait. It’s a bit further out, but the trade-off is clean, powerful waves. This is another one to circle on the calendar.
And then, Saturday the 22nd, in the afternoon, looks like the pick of the whole run. We’ve got another big 10.0ft SW swell, but the period jumps up to a very long 17 seconds. The wind drops to a glassy 3 mph from the NNE – cross-off. The energy is strong at 4635. This is groundswell perfection for a reef pass. The caveat with a 17-second period is that it can sometimes be too straight for beach breaks, but on a reef like The Window, it should be absolutely firing. This is the one I’d be clearing my schedule for. Saturday morning isn't bad either, with a clean 10.0ft at 16 seconds and a gentle cross-off, but the arvo is where it’s at.
After that, the swell stays solid on Sunday the 23rd, but the wind gets fresh out of the NNE at 22 mph, which is a cross-off, so it’s still clean-ish, but a lot more energy in the air. It’s not the same quality.
The following week, things get a bit more unpredictable. Monday the 24th is a write-off – the swell drops, and the wind is onshore. There’s a patch there from the 24th through to the 25th where it’s just messy and onshore again, with the swell fluctuating between 5.0ft and 16.0ft. It’s not worth stressing about.
But keep your eye on Wednesday the 26th in the morning. The wind goes light and offshore from the NE at 3 mph, and there’s a clean 10.0ft WSW swell. It’s got
Short Range ForecastLight rain (total 9mm), mostly falling on Mon morning. Very mild (max 19°C on Sun afternoon, min 14°C on Mon morning). Winds increasing (calm on Fri night, strong winds from the W by Mon afternoon). | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Tue afternoon. Very mild (max 16°C on Tue night, min 12°C on Wed night). Winds decreasing (strong winds from the WSW on Mon night, light winds from the S by Wed night). | ||||||||||||||||||
Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | ||||||||||||||
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) | SW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 15 | WSW 14 | WSW 15 | W 18 | WSW 17 | WSW 15 | WSW 16 | WSW 16 | WSW 15 | WSW 15 | WSW 15 | WSW 16 | WSW 16 | WSW 15 | SW 14 |
Wave Graph | |||||||||||||||||||
3517 | 2613 | 1887 | 1487 | 3427 | 3242 | 3199 | 10190 | 14167 | 10641 | 9639 | 9047 | 5659 | 6356 | 8938 | 8494 | 6524 | 4608 | 4123 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross | off | cross-off | cross | cross | on | on | cross-on | on | on | on | on | cross-on | cross-off | on | cross-on | cross-on |
High Tide | 1:03AM0.35m | 10:57AM0.54m | 00:36AM0.41m | 10:30AM0.44m | 00:25AM0.48m | 8:39AM0.39m | 00:24AM0.53m | 00:40AM0.57m | 1:23AM0.59m | 3:49AM0.60m | |||||||||
Low Tide | 3:25AM0.34m | 6:04PM0.29m | 4:53AM0.36m | 5:04PM0.31m | 6:21AM0.38m | 4:13PM0.27m | 3:20PM0.22m | 3:07PM0.17m | 3:18PM0.13m | ||||||||||
— | 6:58 | — | — | 6:58 | — | — | 6:56 | — | — | 6:56 | — | — | 6:54 | — | — | 6:54 | — | — | |
5:49 | — | 5:50 | — | — | 5:50 | — | — | 5:51 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | |
mm | — | — | — | — | — | — | — | 7 | 2 | — | — | 1 | 2 | — | 1 | — | — | — | — |
Temp °C | 16 | 16 | 17 | 17 | 16 | 19 | 19 | 18 | 14 | 14 | 13 | 14 | 16 | 16 | 15 | 14 | 16 | 16 | 16 |
Feels °C | 15 | 12 | 13 | 16 | 10 | 13 | 14 | 11 | 3 | 4 | 7 | 9 | 8 | 11 | 12 | 13 | 12 | 11 | 13 |
Swell 1 Height (m) Direction Period (s) | SW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 15 | WSW 14 | WSW 15 | WSW 17 | — | WSW 15 | WSW 16 | WSW 16 | WSW 15 | WSW 15 | WSW 15 | WSW 16 | WSW 16 | WSW 15 | SW 14 |
3517 | 2613 | 1887 | 1487 | 3427 | 3242 | 3199 | 8982 | — | 10641 | 9639 | 9047 | 5659 | 6356 | 8938 | 8494 | 6524 | 4608 | 4123 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | WSW 16 | SW 24 | SW 22 | SW 20 | NNW 7 | — | — | — | — | — | — | — | — | — | — | SW 26 |
— | — | — | 886 | 142 | 480 | 1394 | 273 | — | — | — | — | — | — | — | — | — | — | 28 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | NNE 4 | N 5 | NNE 4 | N 5 | N 6 | NNW 6 | W 18 | WSW 17 | — | — | — | — | — | — | — | — | — | — |
— | 17 | 15 | 7 | 106 | 219 | 184 | 10190 | 14167 | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 69 | 2 | 0 | 177 | 171 | 177 | 1688 | 1688 | 557 | 549 | 363 | 260 | 78 | 3 | 0 | 21 | 21 | 3 |
Best forecast wave conditions in Margaret River | |||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||
Header Global | |||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
Information about the The Window Surf forecast
The above surf forecast table for The Window provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at The Window can be found by selecting the local surf guide option on the grey menu. Our The Window 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 (The Window) 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 The Window 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.
The Window is 74 km (46 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.











