Surf Forecasts:
The Window surf forecast from 20 Jul 2026:
- Best quality surf: Wednesday 22 Jul, 11AM (local time) - 7ft (2.1m), 16s period, SW swell with offshore winds.
- Most powerful swell: Sunday 26 Jul, 8AM (local time) - 11ft (3.5m), 16s period, WSW swell with 6,265 kJ wave energy.
- Next surfable swell (1★+): Wednesday 22 Jul, 2AM (local time) - 8ft (2.5m), 13s 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 Wednesday (Jul 22) at 2AM. The primary swell is predicted to be 2.5m and 13s 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 3.5m 16s and forecast to arrive on Sunday (Jul 26) at 8AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 5s period and expected on Friday (Jul 24) at 11AM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Wed 22nd Jul) | 8ft (2.5m) 13s |
| Best Surf | 11AM (Wed 22nd Jul) | 7ft (2.1m) 16s |
| Most Powerful | 8AM (Sun 26th Jul) | 11ft (3.5m) 16s |
Table - best surf conditions forecast for The Window over the next 16 days.
The Lowdown
Alright, this is Rusty, and I’ve got the goods on The Window for the next couple of weeks. Let’s get into it.
The next few days start off a bit grim, but we’ve got a solid window of clean, powerful surf rolling in by mid-week. The standout is unmistakably Wednesday, July 22nd, with Thursday afternoon also looking like a gem.
Tuesday, July 21st, is a write-off. The wind is cross-shore and the conditions are just too messy, even with a solid 8ft SW groundswell. The energy is huge (2120), but it’s not doing us any favours. You’re better off waiting.
Wednesday, July 22nd, is where it’s at. The morning brings a light offshore breeze from the east, cleaning up that 8ft SW swell (13-second period). The energy is massive (4263), and the waves are set to be clean and powerful. This is an advanced break, and with that size, only for experienced surfers. The afternoon holds 12ft SW swell with a 14-second period and cross-offshore wind, keeping it clean. This is the best on offer, no question.
Thursday, July 23rd, is still very good. The morning has a 8ft SW swell and a moderate cross-offshore breeze, but the energy is still strong (2606). The afternoon is a real treat: glassy light winds, 7ft SW swell, and a 14-second period. The waves will be clean and lined up, another top pick for the week.
Friday, July 24th, the swell drops to 5ft, but the morning has cross-offshore wind and clean conditions. The afternoon is a light breeze and clean, with energy dropping to 835. It’s fun, but not the highlight.
Saturday, July 25th, is a letdown. The wind picks up to 25 km/h, and despite the swell, the conditions are marginal. The energy (1017) is moderate, but it’s not worth the chop.
Sunday, July 26th, is a mess. A strong breeze from the NNW creates a cross-shore chaos, and the 15ft SW swell is just too big and blown out. The energy is over 3000, but you’d be mad to paddle out.
Monday, July 27th, stays poor with strong cross-onshore winds and lumpy, chopped-out conditions. The swell is 12ft, but it’s just not surfable.
Tuesday, July 28th, is a redemption day. The morning brings a light cross-offshore breeze and 10ft SW swell (14 seconds) with huge energy (3467). The afternoon is glassy, with 8ft SW swell and 14-second period, and the energy is still strong (2940). The water temp is about average for this time of year, so no surprises there.
From Wednesday, July 29th, onward, things get shaky. The morning has 5ft SW swell with a 17-second period, but moderate wind and energy (2347). The afternoon looks cleaner but the wind picks up. The following days are mostly poor, with strong winds, risk of thunderstorms, and messy conditions. The second week looks like a mixed bag, with a few marginal days but nothing to get excited about.
The real standout is Wednesday, July 22nd, and Thursday, July 23rd. That’s your window.
Rusty
Short Range ForecastLight rain (total 3mm), mostly falling on Mon night. Very mild (max 16°C on Mon night, min 11°C on Thu morning). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 19°C on Sun afternoon, min 12°C on Thu night). Winds increasing (light winds from the ESE on Thu night, strong winds from the NNW by Sun afternoon). | ||||||||||||||||||
Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | ||||||||||||||
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 11 | SW 12 | SW 13 | SW 13 | SW 16 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 12 | SW 12 | SW 12 | WSW 13 | WSW 13 | WSW 12 | SW 9 | SW 14 | SW 13 |
Wave Graph  | |||||||||||||||||||
 kJ | 1651 | 1848 | 2121 | 2147 | 2235 | 4370 | 3436 | 2606 | 1744 | 1144 | 761 | 683 | 760 | 890 | 444 | 669 | 3256 | 5417 | 3567 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross-off | off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-on | on |
High Tide | 4:20AM0.51m | 4:44AM0.57m | 5:22AM0.61m | 6:05AM0.65m | 6:48AM0.68m | 7:29AM0.71m | |||||||||||||
Low Tide | 4:18PM0.21m | 4:05PM0.16m | 4:15PM0.12m | 4:32PM0.09m | 4:53PM0.07m | 5:16PM0.06m | |||||||||||||
 |  |  |  | | |  |  | | | | | | | | | | | | |
 | — | 7:20 | — | — | 7:18 | — | — | 7:18 | — | — | 7:18 | — | — | 7:16 | — | — | 7:16 | — | — |
 | 5:31 | — | 5:32 | — | — | 5:32 | — | — | 5:34 | — | — | 5:34 | — | — | 5:35 | — | — | 5:36 | — |
mm | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 6 |
Temp °C | 16 | 15 | 14 | 14 | 13 | 16 | 14 | 11 | 13 | 14 | 14 | 14 | 14 | 15 | 15 | 18 | 18 | 19 | 17 |
Feels °C | 11 | 10 | 9 | 10 | 10 | 13 | 10 | 6 | 10 | 12 | 10 | 11 | 12 | 10 | 9 | 12 | 10 | 10 | 9 |
Swell 1 Height (m) Direction Period (s) | SW 11 | SW 12 | SW 13 | SW 13 | SW 13 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 12 | SW 12 | SW 12 | WSW 13 | WSW 13 | WSW 12 | N 6 | SW 14 | SW 13 |
| kJ | 1651 | 1848 | 2121 | 2147 | 2235 | 4370 | 3436 | 2606 | 1744 | 1144 | 761 | 683 | 760 | 890 | 444 | 669 | 2 | 5417 | 3567 |
Swell 2 Height (m) Direction Period (s) | — | WSW 15 | — | — | SW 16 | — | — | — | NNE 5 | WSW 18 | WSW 16 | W 15 | W 14 | SW 17 | WSW 11 | SW 16 | — | — | — |
| kJ | — | 272 | — | — | 2028 | — | — | — | 8 | 60 | 87 | 118 | 153 | 77 | 238 | 400 | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | W 18 | — | — | — | — | — | SW 16 | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | 25 | — | — | — | — | — | 133 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | NE 5 | N 5 | N 5 | N 5 | NNW 5 | NNW 5 | WNW 6 | SW 9 | S 8 | — |
| kJ | — | — | — | — | — | — | — | — | — | 4 | 27 | 34 | 37 | 50 | 87 | 274 | 3256 | 568 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 3 | 3 | 3 | 0 | 0 | 0 | 0 | 2 | 0 | 2 | 61 | 0 | 2 | 61 | 61 | 61 | 287 | 475 | 260 |
Best forecast wave conditions in Margaret River | |||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||
Header Global | |||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our The Window surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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.
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