The Window surfForecast / WA – Margaret River / Australia

information circle16 Day Weather and Surf, issued 7 pm Thursday 16 Apr 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
20.5° C
(Which is slightly cooler than normal)

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 Friday (Apr 17) at 5AM. The primary swell is predicted to be 2.1m and 12s 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 4.5m 16s and forecast to arrive on Tuesday (Apr 21) at 2AM. 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+) 5AM (Fri 17th Apr)7ft (2.1m) 12s
Best Surf 5AM (Fri 17th Apr)7ft (2.1m) 12s
Most Powerful 2AM (Tue 21st Apr)15ft (4.5m) 16s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast Light rain (total 3mm), mostly falling on Fri night. Warm (max 20°C on Fri afternoon, min 16°C on Thu night). Winds increasing (calm on Thu night, strong winds from the WSW by Fri night).

Days 3-6 Weather Summary Moderate rain (total 15mm), heaviest on Mon night. Very mild (max 19°C on Mon afternoon, min 13°C on Mon night). Winds increasing (light winds from the NW on Sun night, strong winds from the SW by Mon night).

Friday
17
Saturday
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thu
23
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
4
0
0
0
1
2
2
2
2
3
0
0
0
0
0
3
0
0
0
2
0
Swell
Height Map
Wave Height (m) & direction (?)
2.2
SW
1.8
SW
1.3
SW
3.5
WSW
3.5
WSW
3
WSW
3
WSW
2.5
WSW
3
SW
2.5
SW
3
SW
3
SW
4.5
WSW
4
WSW
4
WSW
3.5
WSW
3
WSW
2.3
WSW
2.5
WSW
3.5
WSW
3.5
WSW
Period(s) (?)121111101111141413131517161414131313131313
Wave
Graph
(?)Metric surfscale
Energy kJ (?)13818313912297268120713095266826412173435358971038770386137410225981765226834124285
Wind
(km/h)
5
SE
35
WNW
40
NW
40
WSW
20
SW
15
WSW
15
W
15
NW
15
NW
10
NW
30
NNW
40
NW
50
SW
30
SW
25
WSW
15
NW
30
NNW
30
NNW
30
NW
15
S
25
SSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glasscross-
on
cross-
on
cross-
on
cross-
on
cross-
on
oncross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
crosscross-
on
High Tide
/ height (m)
10:36PM
0.42
9:28AM
0.64
9:43AM
0.71
10:05AM
0.77
10:30AM
0.79
10:59AM
0.78
11:28AM
0.74
11:51AM
0.68
Low Tide
/ height (m)
2:45AM
0.35
5:21PM
0.13
6:35PM
0.09
8:17PM
0.06
10:25PM
0.03
11:50PM
0.01
12:49AM
0.01
Friday
17
Saturday
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thu
23
Sunrise-6:43--6:43--6:43--6:45--6:46--6:47--6:47-
Sunset--5:54--5:53--5:52--5:52--5:51--5:49--5:47
clear
part cloud
part cloud
light rain
cloud
clear
cloud
cloud
clear
clear
cloud
cloud
rain showers
light rain
cloud
cloud
cloud
part cloud
rain showers
light rain
light rain
Rain (mm)
---3--------141----533
Temp. °C171920171717171718171819191616161718191617
Feels °C (?)14171310111314151515131211910121111131213
  • 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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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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