The Window Surf Break

Lat Long: 33.72° S 114.98° E

The Window Surf Forecast and Surf Report

Issued: 1 pm 31 Jul 2026 (local time)

Forecast update in  hr  min

Today's The Window sea temperature is
19.4° C
1.7° 

The Window surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


The Window surf forecast from 31 Jul 2026:

  • Best quality surf: Saturday 1 Aug, 8PM (local time) - 15ft (4.5m), 15s period, SW swell with cross-offshore winds.
  • Most powerful swell: Thursday 6 Aug, 8PM (local time) - 18ft (5.5m), 16s period, WSW swell with 14,057 kJ wave energy.
  • Next surfable swell (1★+): Saturday 1 Aug, 8PM (local time) - 15ft (4.5m), 15s 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 01) at 8PM. The primary swell is predicted to be 4.5m and 15s 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 Thursday (Aug 06) at 8PM. Winds are predicted to be cross-onshore at the time the swell arrives.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Sat 1st Aug)15ft (4.5m) 15s
Best Surf 8PM (Sat 1st Aug)15ft (4.5m) 15s
Most Powerful 8PM (Thu 6th Aug)18ft (5.5m) 16s

Table - best surf conditions forecast for The Window over the next 16 days.


The Lowdown

Alright folks, Rusty here. Let’s get into it. We’ve got a solid run of groundswell coming our way, but the wind is going to be the main character for a lot of this stretch. We’re looking at The Window, an advanced reef break, and it’s been fairly consistent. Things kick off on Friday, July 31st, but honestly, it’s a write-off. There’s a risk of thunderstorms with a strong onshore W breeze at 19 mph pushing into a 12 ft SW groundswell. The water is hanging around 67°F, which is a touch warmer than what we’d normally expect for this time of year. The combined energy is moderate (6556), but the wind is just going to wreck it. No point paddling out.

The real story starts Saturday, August 1st. The morning is still a bit average with a cross S wind at 16 mph and a 13 ft SW swell, but it’s that afternoon that stands out. The wind swings to a cross-off SSE breeze at 9 mph, and the swell pushes up to 15 ft from the SW with a long 16-second period. That’s proper groundswell energy, and the combined energy is strong (9370). This is a big, powerful wave for advanced surfers only – over 8 ft means it’s for the experienced crew. The reef at The Window will handle that long period beautifully, but it’s going to be a heavy drop. This is a standout window.

Sunday, August 2nd stays clean. The morning is clear with a cross-off NE breeze at 12 mph and a 10 ft SW swell. The afternoon is even better, with the wind dropping to a light breeze at 6 mph, still cross-off. The waves are still a solid 10 ft, making it a high-end session that’s a bit more manageable than Saturday. The energy is moderate (2800) but clean. Good stuff.

Monday, August 3rd is a gem. Clear skies, and the wind goes glassy – 3 mph from the NNE in the morning and WNW in the afternoon. The swell drops to 6 ft and 7 ft, still with a long 15-16 second period. This is a magic window where the reef will be working perfectly, and the light wind will make it look like a lake. The energy is moderate (1426-2054), but the quality is through the roof for experienced surfers. This is your other standout day.

Then the wind turns ugly. From Tuesday, August 4th through to about August 9th, we get smashed by strong onshore and cross-onshore winds ranging from 19 mph to a ridiculous 31 mph. The swell gets huge – 18 ft, 23 ft, even 26 ft at times, with very strong combined energy (up to 40660). But the conditions are described as poor, blown out, and lumpy. For the week of August 8th and 9th, the swell is predicted to be too big for the break, even for experts. This is purely a spectacle for the brave and the foolish. Honestly, with that setup, it looks more interesting for kite surfing than paddle surfing.

We get a breather on Monday, August 10th. The morning is clear with a cross-off SE breeze at 9 mph and a 15 ft SW swell. The energy is strong (8402), and it’s clean. Good for experts. The afternoon is a bit more cross with a moderate S breeze, but still rideable.

The rest of the second week, from August 11th to the 15th, is a mixed bag. We get some clean mornings on the 11th with a 10 ft SW swell and a cross-off NNE breeze, but the wind picks up again. From August 12th onwards, we’re looking at near gale-force winds and massive, unruly swell. The period stays long, but the wind and size make it a no-go for all but the most experienced, and even then, the conditions are poor. The energy readings are huge, but the quality is absent.

So, to sum it up: the absolute best on offer is the Saturday afternoon, August 1st, for the big, powerful groundswell, and the glassy morning of Monday, August 3rd, for a cleaner, more manageable session. Get out there while you can.

Rusty.

Short Range Forecast

Light rain (total 7mm), mostly falling on Fri afternoon. Very mild (max 18°C on Fri afternoon, min 9°C on Sun morning). Winds decreasing (fresh winds from the WSW on Fri night, calm by Mon morning).

Days 5-7 Weather Summary

Moderate rain (total 19mm), heaviest on Thu morning. Very mild (max 17°C on Wed night, min 14°C on Mon night). Winds increasing (calm on Mon night, strong winds from the NW by Thu morning).

Fri
31
Saturday
1
Sunday
2
Monday
3
Tuesday
4
Wednesday
5
Thursday
6
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
2
7
5
3
4
4
4
4
4
0
0
0
6
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
3.5
SW
16
4
SW
15
4
SW
14
4.5
SW
16
4
SW
14
3
SW
13
3
SW
13
2.4
SW
14
1.8
SW
15
2.1
SW
16
2.4
SW
14
3.5
WSW
17
3
WSW
16
3
WSW
16
4.5
WSW
16
4.5
WSW
16
4
WSW
16
4
WSW
16
5.5
WSW
16
5.5
WSW
15
Wave Graph
Metric surfscale
Energy kJ
6365
6687
5842
9370
5914
3475
2800
2197
1358
2054
2296
6758
5369
5174
9888
9110
9635
9216
13652
12951
Wind (km/h)
35
W
30
SW
25
S
20
SSE
15
E
20
NE
10
NE
15
ENE
5
NE
5
NW
5
ENE
35
WSW
30
WSW
30
W
15
N
25
WNW
40
WNW
40
NW
35
SW
35
SSW
Wind State
on
cross-on
cross
cross-off
off
cross-off
cross-off
off
glassy
glassy
glassy
cross-on
on
on
cross
on
cross-on
cross-on
cross-on
cross-on
High Tide
10:27AM0.64m
1:49AM0.36m
10:44AM0.57m
1:37AM0.41m
10:50AM0.49m
1:49AM0.47m
10:11AM0.40m
2:24AM0.54m
3:24AM0.60m
4:37AM0.66m
Low Tide
6:31PM0.16m
6:31PM0.20m
3:49AM0.36m
6:28PM0.23m
5:27AM0.38m
6:20PM0.26m
7:31AM0.39m
5:48PM0.28m
3:22PM0.24m
2:53PM0.14m
rain showers
light rain
cloud
part cloud
part cloud
clear
clear
clear
clear
part cloud
rain showers
rain showers
part cloud
rain showers
part cloud
rain showers
rain showers
thunderstorm
rain showers
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:11
7:11
7:11
7:09
7:09
7:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:38
5:39
5:40
5:40
5:42
5:43
5:43
 mm
5
2
1
3
2
1
5
7
9
2
Temp °C
18
16
14
13
13
11
13
13
15
16
15
16
15
16
16
16
17
17
16
14
Feels °C
11
8
8
7
9
6
9
11
14
15
15
14
8
10
13
12
13
11
8
5
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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