The Window Surf Break

Lat Long: 33.72° S 114.98° E

The Window Surf Forecast and Surf Report

Issued: 7 pm 20 Sep 2026 (local time)

Forecast update in  hr  min

Today's The Window sea temperature is
18.2°C
0.9° 

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 20 Sep 2026:

  • Best quality surf: Monday 21 Sep, 2AM (local time) - 11ft (3.5m), 15s period, SW swell with glassy winds.
  • Most powerful swell: Friday 25 Sep, 11AM (local time) - 13ft (4.0m), 19s period, SW swell with 11,876 kJ wave energy.
  • Next surfable swell (1★+): Monday 21 Sep, 2AM (local time) - 11ft (3.5m), 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 Monday (Sep 21) at 2AM. The primary swell is predicted to be 3.5m and 15s period. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at The Window in the next 16 days are 4.0m 19s and forecast to arrive on Friday (Sep 25) at 11AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 6s period and expected on Friday (Sep 25) at 5AM.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Mon 21st Sep)11ft (3.5m) 15s
Best Surf 2AM (Mon 21st Sep)11ft (3.5m) 15s
Most Powerful11AM (Fri 25th Sep)13ft (4.0m) 19s

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


Short Range Forecast

Mostly dry. Very mild (max 16°C on Tue afternoon, min 13°C on Sun night). Wind will be generally light.

Days 5-7 Weather Summary

Moderate rain (total 17mm), heaviest on Sat morning. Very mild (max 16°C on Wed night, min 10°C on Fri night). Winds increasing (calm on Wed night, strong winds from the SE by Sat afternoon).

Monday
21
Tuesday
22
Wednesday
23
Thursday
24
Friday
25
Saturday
26
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
5
3
2
3
3
2
4
2
0
3
1
1
3
6
7
6
3
1
1
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
15
3
SW
15
3
SW
15
2.5
SW
14
3
SW
14
3
SW
14
2.5
SW
13
2.3
SW
13
2.1
SW
12
1.8
SW
13
1.9
SW
14
2.3
SW
14
3
SW
14
4
SW
19
4.5
SW
17
4
SW
16
3.5
SW
16
2.5
SW
15
2.2
SW
14
Wave Graph
Metric surfscale
Energy kJ
4915
4394
3715
2541
3240
3094
2174
1671
1319
1075
1349
2027
3253
11876
11514
8486
5205
2810
1824
Wind (km/h)
5
NNW
15
W
15
SSW
20
ESE
5
SSW
20
SSW
10
SE
15
WSW
20
SW
10
S
15
WSW
25
S
30
SSE
35
SE
30
SE
25
SE
25
SE
45
SE
40
SSE
Wind State
glassy
on
cross-on
cross-off
cross-on
cross
cross-off
cross-on
cross-on
cross
on
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
5:54AM0.60m
6:48AM0.62m
7:32AM0.62m
10:29PM0.39m
8:13AM0.61m
9:59PM0.41m
8:54AM0.58m
9:52PM0.46m
9:37AM0.53m
9:52PM0.51m
Low Tide
3:22PM0.11m
3:34PM0.12m
3:43PM0.15m
1:06AM0.38m
3:47PM0.18m
2:19AM0.33m
3:49PM0.23m
3:17AM0.29m
3:47PM0.28m
4:13AM0.24m
clear
part cloud
part cloud
part cloud
cloud
cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
cloud
light rain
cloud
part cloud
mod rain
mod rain
heavy rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:11
6:09
6:09
6:07
6:05
6:05
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:14
6:15
6:15
6:15
6:16
6:16
6:17
 mm
2
7
8
11
Temp °C
14
15
15
15
15
16
16
16
16
16
15
15
14
11
14
12
10
10
12
Feels °C
11
14
13
12
13
12
13
13
12
13
14
11
9
4
7
5
3
2
4
  • 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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