The Window surfForecast / WA – Margaret River / Australia

information circle16 Day Weather and Surf, issued 1 pm Thursday 21 May 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
20.9° 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 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (May 22) at 11PM. The primary swell is predicted to be 2.3m and 12s 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 3.5m 14s and forecast to arrive on Thursday (May 28) at 2AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 5s period and expected on Monday (May 25) at 11AM.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+)11PM (Fri 22nd May)7.5ft (2.3m) 12s
Best Surf11PM (Fri 22nd May)7.5ft (2.3m) 12s
Most Powerful 2AM (Thu 28th May)11ft (3.5m) 14s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Some drizzle, heaviest during Thu afternoon. Very mild (max 17°C on Thu afternoon, min 11°C on Fri night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 20°C on Tue morning, min 14°C on Sun night). Winds increasing (light winds from the NNE on Sun night, fresh winds from the N by Wed morning).

Thu
21
Friday
22
Saturday
23
Sunday
24
Monday
25
Tuesday
26
Wednesday
27
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
1
1
3
2
4
3
2
2
2
4
3
2
2
2
0
2
3
1
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
3
SW
13
2.5
SW
13
2.4
SW
13
2.4
SW
12
2.3
SW
12
2
SW
12
1.7
WSW
12
1.2
SW
11
1.3
WSW
14
1.7
WSW
13
1.5
WSW
13
1.8
WSW
15
1.8
WSW
14
1.7
WSW
13
1.2
WSW
13
1.1
WSW
18
1.8
WSW
17
2
WSW
16
2.2
WSW
15
3.5
WNW
14
3
W
13
Wave Graph
Metric surfscale
Energy kJ
2880
2174
1892
1693
1403
1094
756
354
647
1077
722
1337
1283
936
444
872
1717
1919
2076
5444
3237
Wind (km/h)
25
SSW
25
S
20
S
20
S
15
E
10
NE
10
NNW
15
E
20
NNE
15
NNE
15
ENE
30
NNE
25
N
20
NNE
25
N
20
N
25
N
30
N
30
NW
40
WNW
30
WNW
cross
cross
cross-off
cross
off
cross-off
cross-on
off
cross-off
cross-off
cross-off
cross-off
cross
cross-off
cross
cross
cross-off
cross
cross-on
on
on
High Tide
11:16AM0.63m
10:43AM0.56m
10:03AM0.51m
4:24PM0.42m
8:42AM0.50m
7:04PM0.35m
7:46AM0.54m
7:38AM0.60m
7:46AM0.66m
Low Tide
00:06AM0.05m
00:48AM0.12m
1:14AM0.20m
4:00PM0.42m
1:20AM0.28m
3:49PM0.33m
11:51PM0.34m
4:13PM0.26m
4:39PM0.20m
light rain
part cloud
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
cloud
part cloud
part cloud
cloud
part cloud
part cloud
cloud
part cloud
part cloud
light rain
rain showers
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:09
7:09
7:09
7:11
7:11
7:11
7:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:23
5:22
5:22
5:22
5:22
5:21
5:21
5:21
1
1
11
Temp °C
17
17
16
16
15
13
14
14
14
16
16
18
19
19
20
20
20
20
21
19
19
12
12
11
10
11
10
12
14
10
13
14
13
14
15
16
16
18
16
17
13
13
Swell 1
Height (m)
Direction
Period (s)
3
SW
13
2.5
SW
13
2.4
SW
13
2.4
SW
12
2.3
SW
12
2
SW
12
1.7
WSW
12
1.2
SW
11
1.3
WSW
14
1.7
WSW
13
1.5
WSW
13
1.8
WSW
15
1.8
WSW
14
1.7
WSW
13
1.2
WSW
13
1.2
W
11
1.8
WSW
17
2
WSW
16
2.2
WSW
15
0.4
SSW
15
1.6
WSW
13
Energy kJ
2880
2174
1892
1693
1403
1094
756
354
647
1077
722
1337
1283
936
444
338
1717
1919
2076
84
841
Swell 2
Height (m)
Direction
Period (s)
0.1
SW
18
0.7
S
9
0.6
S
8
0.9
SW
11
0.6
S
11
0.8
WSW
16
0.3
S
10
0.2
S
9
0.1
W
23
0.8
W
10
1.1
WSW
18
1.6
WNW
10
1.1
W
10
0.2
SSW
16
0.9
SW
13
Energy kJ
13
79
46
169
81
330
17
7
10
128
872
500
220
25
253
Swell 3
Height (m)
Direction
Period (s)
0.1
SW
18
0.3
S
14
0.6
WSW
16
0.8
S
11
0.5
WSW
18
0.4
S
10
0.1
S
9
0.6
WSW
20
0.9
SW
12
0.7
SW
12
0.5
W
20
Energy kJ
13
35
171
146
182
32
2
311
256
137
186
Wind waves
Height (m)
Direction
Period (s)
0.5
NNE
3
0.5
N
4
0.5
N
4
1.2
N
5
1.4
N
6
1.2
NNW
6
1.1
NNW
6
1.2
NNW
6
1.2
NNW
5
2
WNW
6
3.5
WNW
14
3
W
13
Energy kJ
6
8
9
71
127
100
74
81
64
270
5444
3237
Nearest Offshore or Glassy
Rating
(10 max)
4
2
4
4
4
3
2
2
4
4
3
4
4
3
3
3
4
4
4
4
4
Distance (km)
631
55
3
3
0
0
21
0
61
0
0
61
69
61
69
69
61
157
213
1117
529
Best forecast wave conditions in Margaret River
Rating
(10 max)
4
4
4
4
3
3
4
4
4
4
4
3
3
3
4
Best forecast wave conditions in Australia
Rating
(10 max)
4
4
4
7
5
5
4
5
5
4
4
4
4
4
4
4
4
4
4
5
5
Header Global
Rating
(10 max)
5
5
5
7
6
5
7
8
6
5
5
5
4
4
5
4
5
4
4
5
5
  • 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
submit an eyeball surf report

Quick surf report for The Window:

join our community of surf reporters

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.

Nearest locationNearest
Nearest locationNearest
Nearest locationNearest