The Window Surf Break

Lat Long: 33.72° S 114.98° E

The Window Surf Forecast and Surf Report

Issued: 7 am 17 Sep 2026 (local time)

Forecast update in  hr  min

Today's The Window sea temperature is
18.0°C
0.7° 

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 17 Sep 2026:

  • Best quality surf: Sunday 20 Sep, 11PM (local time) - 11ft (3.5m), 16s period, SW swell with offshore winds.
  • Most powerful swell: Saturday 19 Sep, 8AM (local time) - 25ft (7.5m), 13s period, W swell with 18,591 kJ wave energy.
  • Next surfable swell (1★+): Sunday 20 Sep, 11PM (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 Sunday (Sep 20) at 11PM. The primary swell is predicted to be 3.5m and 16s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at The Window in the next 16 days are 7.5m 13s and forecast to arrive on Saturday (Sep 19) at 8AM. Winds are predicted to be onshore at the time the swell arrives.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+)11PM (Sun 20th Sep)11ft (3.5m) 16s
Best Surf11PM (Sun 20th Sep)11ft (3.5m) 16s
Most Powerful 8AM (Sat 19th Sep)25ft (7.5m) 13s

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


Short Range Forecast

Light rain (total 7mm), mostly falling on Fri night. Warm (max 20°C on Thu morning, min 15°C on Fri night). Winds increasing (light winds from the N on Thu morning, near gales from the WNW by Fri night).

Days 4-6 Weather Summary

Some drizzle, heaviest during Mon night. Very mild (max 16°C on Sun morning, min 10°C on Tue night). Wind will be generally light.

Thursday
17
Friday
18
Saturday
19
Sunday
20
Monday
21
Tuesday
22
Wednesday
23
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
0
1
2
0
0
0
0
0
2
3
5
2
1
2
3
1
3
4
1
4
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.6
WSW
14
1.3
WSW
13
1.6
WSW
12
1.3
WSW
17
1.7
WSW
17
4.5
WNW
10
7
W
13
5
W
12
3.5
WSW
13
3
SW
13
3
SW
16
3.5
SW
15
3.5
SW
15
3
SW
15
2.5
SW
14
2.5
SW
14
3
SW
14
3
SW
13
2.4
SW
13
2.3
SW
12
2
SW
12
Wave Graph
Metric surfscale
Energy kJ
902
615
715
921
1688
4333
17009
7713
3773
3076
4356
5870
4745
3715
2541
2717
3844
2886
1945
1655
1131
Wind (km/h)
20
N
25
NW
20
N
35
NNE
40
NW
55
NW
55
W
40
W
25
SW
10
SSW
10
WSW
5
NNE
20
WNW
20
WSW
15
SSW
15
S
25
S
20
ESE
10
SE
30
SSW
10
ESE
Wind State
cross
cross-on
cross
cross-off
cross-on
cross-on
on
on
cross-on
cross-on
cross-on
cross-off
on
cross-on
cross
cross
cross
cross-off
cross-off
cross
cross-off
High Tide
11:43PM0.64m
00:21AM0.61m
1:35AM0.58m
5:54AM0.60m
6:48AM0.62m
7:32AM0.62m
10:29PM0.39m
Low Tide
2:00PM0.14m
2:23PM0.12m
2:46PM0.11m
2:32AM0.58m
3:06PM0.10m
3:22PM0.11m
3:34PM0.12m
3:43PM0.15m
1:06AM0.38m
clear
clear
clear
part cloud
part cloud
rain showers
light rain
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
rain showers
cloud
clear
clear
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:16
6:16
6:15
6:13
6:11
6:09
6:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:12
6:13
6:13
6:14
6:15
6:15
6:15
 mm
5
2
1
Temp °C
20
20
17
19
19
16
16
17
17
16
15
14
16
16
16
15
16
13
16
15
13
Feels °C
18
18
15
14
14
6
6
10
11
13
12
12
12
13
13
12
10
8
14
10
8
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 
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Quick surf report for The Window:

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FREE! Surf-Forecast.com widget for your website

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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