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Surf Forecasts:

The Window surfForecast / WA – Margaret River / Australia

information circle12 Day Weather and Surf, issued 7 am Thursday 18 Sep 2025 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
17.3° C
 (Which is normal for this time of year)

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 Friday (Sep 19) at 11PM. The primary swell is predicted to be 3.5m and 14s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at The Window in the next 12 days are 4.5m 14s and forecast to arrive on Friday (Sep 19) at 2AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Sunday (Sep 21) at 8PM.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+)11PM (Fri 19th Sep)11ft (3.5m) 14s
Best Surf11PM (Fri 19th Sep)11ft (3.5m) 14s
Most Powerful 2AM (Fri 19th Sep)15ft (4.5m) 14s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Light rain (total 3mm), mostly falling on Thu night. Very mild (max 16°C on Fri morning, min 12°C on Sat night). Winds decreasing (fresh winds from the SW on Thu night, light winds from the SSE by Sat morning).

Days 3-6 Weather Summary Mostly dry. Warm (max 22°C on Tue afternoon, min 12°C on Sun morning). Wind will be generally light.

Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
3
5
3
0
4
3
1
4
4
3
5
4
4
4
4
4
3
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
2.4
WSW
4
WSW
4.5
SW
4
SW
4
SW
3.5
SW
3
SW
2.5
SW
2.3
SW
2.3
SW
2.4
SW
2.5
SW
2.1
WSW
2.3
WSW
3
WSW
3
WSW
2.5
WSW
2.5
WSW
3
WSW
3
WSW
3
WSW
Period(s) (?)141414141414141313131414191817161615151515
Wave
Graph
(?)Metric surfscale
Energy kJ (?)225058048055724160584076292322751697169720942471326333234426382735553375382837493903
Wind
(km/h)
30
WSW
30
WSW
30
SW
20
SSW
20
SSW
10
SSE
10
SW
20
SSW
15
SE
15
SSW
25
S
20
ESE
15
ENE
15
S
20
ENE
15
NE
5
N
10
E
15
NNE
10
NNE
15
NE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		oncross-
on		cross-
on		crosscross-
off		cross-
on		cross-
on		cross-
off		crosscrossoffcross-
off		crossoffcross-
off		glassoffcross-
off		cross-
off		cross-
off
High Tide
/ height (m)
8:17AM
0.64
11:12PM
0.38
8:55AM
0.61
10:18PM
0.40
9:29AM
0.55
10:05PM
0.45
10:01AM
0.49
10:03PM
0.51
10:30AM
0.42
10:04PM
0.56
10:45AM
0.36
10:09PM
0.61
Low Tide
/ height (m)
4:15PM
0.09
4:30PM
0.15
1:44AM
0.37
4:33PM
0.22
2:51AM
0.33
4:16PM
0.28
3:40AM
0.30
3:47PM
0.31
4:26AM
0.28
3:20PM
0.32
5:13AM
0.26
2:53PM
0.31
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Sunrise6:16--6:15--6:13--6:11--6:09--6:09--6:07--
Sunset-6:13--6:13--6:14--6:15--6:15--6:15--6:16-
part cloud
cloud
rain showers
rain showers
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
Rain (mm)
--21-----------------
Temp. °C141515161615151414161917182120202222222220
Feels °C (?)799131212131110141412162015151819191817
  • 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

Eyeball surf reportRecent Eyeball Surf Reports for WA - Margaret River

  1. weather stationWind Update The wind is still cross-on at The Window (fresh winds from the SW at Cape Naturaliste Lh 21 km from The Window). A 3.8m groundswell from the SW is too big for here

    1 hour 5 minutes ago The Window
Expand
<
>
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21 km away, 1 h 5 min ago

31 km/h
SW
0.0
17.3
Air / Water (°C)
Please reload the page to see if there are any updates.

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.

View detailed surf forecast for The Window at:
surf-forecast.com

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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