The Window surfForecast / WA – Margaret River / Australia

information circle12 Day Weather and Surf, issued 7 am Sunday 18 Jan 2026 AWST
Forecast update in hr  min  s Forecast update imminent
The Window surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's The Window sea temperature is
21.1° C
(Which is slightly warmer than usual)


Best Forecast Surf Conditions for The Window this week:

The surf forecast for The Window over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Jan 19) at 8AM. The primary swell is predicted to be 2.2m and 13s period with a secondary swell of 0.4m and 24s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at The Window in the next 12 days are 4.5m 18s and forecast to arrive on Monday (Jan 19) at 8PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 6s period and expected on Monday (Jan 19) at 11PM.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Mon 19th Jan)7ft (2.2m) 13s
Best Surf11AM (Tue 20th Jan)10ft (3.0m) 16s
Most Powerful 8PM (Mon 19th Jan)15ft (4.5m) 18s

Table - best surf conditions forecast for The Window over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Warm (max 34°C on Tue afternoon, min 13°C on Sun night). Winds decreasing (fresh winds from the SW on Mon afternoon, calm by Tue morning).

Days 3-6 Weather Summary Mostly dry. Warm (max 33°C on Wed afternoon, min 14°C on Fri night). Mainly fresh winds.

Sunday
18
Monday
19
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
Saturday
24
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
1
3
1
6
6
5
1
3
2
1
3
0
0
0
0
0
3
0
0
2
Swell
Height Map
Wave Height (m) & direction (?)
2.4
SW
2.3
SW
2.1
SW
2.4
SW
4
SW
3.5
SW
3
SW
2.5
SW
2.2
SW
1.9
SW
1.6
SW
1.6
SW
1.4
SW
1.3
SW
1.2
SW
1.1
SW
2.5
SW
3
SW
3
SW
3
SW
2.5
SW
Period(s) (?)131313131917161414131312121212121715141413
Wave
Graph
(?)Metric surfscale
Energy kJ (?)2036169713231817107638133458728831748122386471856150240936135153848381033262243
Wind
(km/h)
20
SW
35
SSW
20
SE
20
SW
30
S
25
E
5
E
25
S
30
E
20
NNE
20
SSW
15
ENE
15
WSW
35
SSW
25
S
35
SSW
35
S
20
SSE
25
SW
25
SW
20
SSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
crosscross-
off
cross-
on
crossoffglasscrossoffcross-
off
crossoffcross-
on
crosscrosscrosscrosscross-
off
cross-
on
cross-
on
cross
High Tide
/ height (m)
9:22PM
0.78
9:51PM
0.77
10:18PM
0.74
10:42PM
0.68
11:00PM
0.60
3:28PM
0.39
11:00PM
0.51
3:19PM
0.46
9:46PM
0.42
Low Tide
/ height (m)
6:36AM
0.06
6:53AM
0.09
7:04AM
0.13
7:10AM
0.17
7:10AM
0.22
4:59PM
0.39
6:59AM
0.26
7:54PM
0.42
Sunday
18
Monday
19
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
Saturday
24
Sunrise5:26--5:28--5:28--5:30--5:31--5:31--5:33--
Sunset-7:31--7:31--7:31--7:30--7:30--7:30--7:30-
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
part cloud
Rain (mm)
---------------------
Temp. °C171817212521313428313329252119191917181820
Feels °C (?)131211171916302824262925251815151211131317
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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 12 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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