Surf Forecasts:
The Window surf forecast from 13 Jul 2026:
- Best quality surf: Monday 13 Jul, 8PM (local time) - 11ft (3.5m), 16s period, SW swell with cross-offshore winds.
- Most powerful swell: Saturday 18 Jul, 11AM (local time) - 18ft (5.5m), 16s period, WSW swell with 14,499 kJ wave energy.
- Next surfable swell (1★+): Monday 13 Jul, 8PM (local time) - 11ft (3.5m), 16s 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 Monday (Jul 13) at 8PM. The primary swell is predicted to be 3.5m and 16s 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 5.5m 16s and forecast to arrive on Saturday (Jul 18) at 11AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.4m 7s period and expected on Wednesday (Jul 15) at 5PM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Mon 13th Jul) | 11ft (3.5m) 16s |
| Best Surf | 8PM (Mon 13th Jul) | 11ft (3.5m) 16s |
| Most Powerful | 11AM (Sat 18th Jul) | 18ft (5.5m) 16s |
Table - best surf conditions forecast for The Window over the next 16 days.
Alright, let’s break it down. The Window is the only spot on the menu, and it’s going to be a mixed bag.
It kicks off on Monday, July 13th, with a solid 12 ft SW groundswell, a long 16-second period, and a ton of energy (5292). The water is 66°, which is about average. The wind is a light cross-on from the SW, so it’s rideable but not perfect. This is an advanced reef break, so it’s not for beginners.
The real standout is Tuesday, July 14th. The morning and afternoon both have clean, cross-off winds from the NE. The swell is still 10 ft from the SW, with a 15-second period in the morning and 14 seconds in the afternoon. The energy is huge (3813 and 3326). The wind is light, so the waves will be clean and organized. This is the best of the 16-day window—excellent for experienced surfers. Crowds are only sometimes an issue, so you might have some company, but with that much swell, it’s not a problem.
Wednesday, July 15th, is where it starts to fall apart. The wind picks up to 25 mph from the NNE, and by the afternoon, it’s a 22 mph cross N wind. The surf is still 7 ft, but the conditions go from marginal to poor.
From Thursday, July 16th, through the rest of the forecast, it’s mostly blown out. The wind is onshore or cross-onshore, often strong, with gusts up to 31 mph. The swell sizes range from 7 ft to 18 ft, but the wind and rain (showers, moderate rain) ruin the surface. The energy on Saturday, July 18th, is absolutely massive (14499), but that’s an 18 ft swell with straight onshore wind. That’s a washing machine, not a surf session. This setup is more interesting for kite surfing than paddle surfing.
There is a glimmer on Friday, July 24th, with an 12 ft SW groundswell and clean cross-off winds from the NNE. The period is 14 seconds, and the energy is strong (4249). The conditions are clean, but the forecast calls it marginal—likely due to tide or the sheer size. It’s an advanced spot, and 12 ft is big, so only experts need apply.
For the second week, from July 19th onward, it’s mostly grim. The wind is almost always onshore or cross-onshore, the swell is messy, and the scores are low. The long-range glimmer on July 24th is promising but not a sure thing.
Your best bet is Tuesday, July 14th. That’s the cleanest, most powerful day with the best wind. After that, it’s a waiting game.
Rusty.
Short Range ForecastHeavy rain (total 25mm), heaviest during Thu morning. Very mild (max 19°C on Wed afternoon, min 11°C on Tue morning). Winds increasing (light winds from the S on Mon night, strong winds from the NNE by Wed morning). | Days 5-7 Weather SummaryHeavy rain (total 24mm), heaviest during Thu afternoon. Very mild (max 17°C on Thu afternoon, min 14°C on Fri night). Winds increasing (light winds from the W on Thu night, near gales from the W by Fri night). | ||||||||||||||||||||
Mon 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 16 | WSW 16 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | W 8 | WSW 12 | WSW 16 | WSW 16 | WSW 15 | SW 14 | SW 13 | SW 13 | WSW 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 5292 | 3970 | 3813 | 3326 | 2560 | 1868 | 3470 | 3288 | 4815 | 3220 | 2318 | 1376 | 1669 | 10474 | 14499 | 10637 | 6271 | 3875 | 2822 | 1619 | 1029 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | off | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross-on | cross-on | on | cross-on | cross-on | on | on | on | cross-on | on | cross-on | cross-on | on |
High Tide | 9:19AM0.87m | 10:03AM0.83m | 10:42AM0.76m | 11:10AM0.67m | 11:02AM0.56m | 9:40AM0.48m | 4:44AM0.45m | 8:19AM0.46m | |||||||||||||
Low Tide | 6:08PM-0.10m | 6:56PM-0.07m | 7:44PM-0.01m | 8:26PM0.08m | 8:54PM0.18m | 8:14PM0.27m | 6:29PM0.30m | 5:55AM0.45m | |||||||||||||
 |  |  | | | | |  |  |  |  | | |  | |  | |  | | | | |
 | — | — | 7:22 | — | — | 7:22 | — | — | 7:22 | — | — | 7:22 | — | — | 7:20 | — | — | 7:20 | — | — | 7:20 |
 | 5:28 | — | — | 5:28 | — | — | 5:29 | — | — | 5:29 | — | — | 5:30 | — | — | 5:30 | — | — | 5:30 | — | 5:31 |
mm | — | — | — | — | — | — | — | 9 | 16 | 13 | — | — | 2 | 5 | — | 1 | 3 | — | 1 | 2 | 18 |
Temp °C | 14 | 15 | 12 | 14 | 15 | 18 | 19 | 19 | 17 | 17 | 16 | 17 | 17 | 16 | 15 | 15 | 15 | 15 | 16 | 16 | 13 |
Feels °C | 12 | 14 | 9 | 11 | 12 | 11 | 13 | 15 | 12 | 14 | 14 | 11 | 9 | 4 | 6 | 7 | 8 | 11 | 10 | 9 | 4 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 16 | WSW 16 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | W 24 | — | WSW 16 | WSW 16 | WSW 15 | SW 14 | SW 13 | SW 13 | SW 16 |
| kJ | 5292 | 3970 | 3813 | 3326 | 2560 | 1868 | 3470 | 3288 | 4815 | 3220 | 2318 | 1376 | 11 | — | 14499 | 10637 | 6271 | 3875 | 2822 | 1619 | 242 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | WSW 22 | SW 18 | WNW 13 | — | WNW 13 | NNW 7 | WNW 12 | S 11 | — | — | — | — | — | — | — | — | WSW 13 |
| kJ | — | — | — | — | 45 | 1124 | 18 | — | 16 | 235 | 14 | 3 | — | — | — | — | — | — | — | — | 116 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | NW 14 | WNW 14 | — | — | — | WNW 13 | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | 7 | 18 | — | — | — | 16 | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | NNE 4 | N 7 | NNW 7 | NNW 7 | NNW 7 | — | NNW 7 | WNW 7 | W 8 | WSW 12 | — | — | — | — | — | NW 4 | WSW 8 |
| kJ | — | — | — | — | 31 | 426 | 543 | 380 | 313 | — | 96 | 603 | 1669 | 10474 | — | — | — | — | — | 13 | 1029 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 3 | 0 | 0 | 0 | 55 | 1089 | 227 | 171 | 27 | 3 | 3 | 194 | 260 | 1322 | 671 | 260 | 21 | 19 | 69 | 171 | 642 |
Best forecast wave conditions in Margaret River | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
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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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