The Window Surf Break

Lat Long: 33.72° S 114.98° E

The Window Surf Forecast and Surf Report

Issued: 1 am 17 Jul 2026 (local time)

Forecast update in  hr  min

Today's The Window sea temperature is
19.3° C
1.1° 

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 16 Jul 2026:

  • Best quality surf: Sunday 19 Jul, 8PM (local time) - 10ft (3.0m), 13s period, SW swell with cross-offshore winds.
  • Most powerful swell: Saturday 18 Jul, 2PM (local time) - 16ft (5.0m), 16s period, WSW swell with 13,106 kJ wave energy.
  • Next surfable swell (1★+): Sunday 19 Jul, 8PM (local time) - 10ft (3.0m), 13s 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 Sunday (Jul 19) at 8PM. The primary swell is predicted to be 3.0m and 13s 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 5.0m 16s and forecast to arrive on Saturday (Jul 18) at 2PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 7s period and expected on Friday (Jul 17) at 11AM.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Sun 19th Jul)10ft (3.0m) 13s
Best Surf 8PM (Sun 19th Jul)10ft (3.0m) 13s
Most Powerful 2PM (Sat 18th Jul)16ft (5.0m) 16s

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


The Lowdown

Alright folks, Rusty here. Let’s have a look at what’s coming our way at The Window. It’s a reef setup, so you’ll want your wits about you, and this run’s a bit of a mixed bag, so let’s get into it.

We’re going to kick things off with some energy in the water right from Friday the 17th. There’s a solid 7ft WSW swell coming in, with a period of 12 seconds, and the combined swell energy is up there at 1409 – that’s moderate energy with some grunt. However, the wind’s gonna be a pain: a nasty cross-shore from the north at 16 mph. It’s gonna be choppy and messy Friday morning, and it goes downhill from there with rain and stronger wind in the afternoon. Saturday the 18th is a total write-off. We’re looking at 16ft of onshore, wind-whipped slop with an insane 8406 combined energy, but it’s just big and blown out. Not for paddling, that’s for sure. Sunday the 19th through Tuesday the 22nd sees size drop back into the 8ft to 12ft range, but the wind keeps swinging around cross-on or onshore. The water temp is sitting at 67°F, which is a touch warmer than normal for this time of year, so that’s a nice little bonus if you’re willing to battle the chop.

Now, let’s talk about the standout. Thursday the 23rd of July is where it’s at. The morning session is looking prime: a clean 8ft swell from the SW with a 14-second period (long period groundswell), and the wind is offshore from the ENE at just 9 mph. That’s going to hold the reef nicely. The combined energy is 2356, so plenty of push. In the afternoon, it goes glassy – 3 mph from the east and clean as a whistle, with 8ft of that same SW groundswell. This is the pick of the whole forecast. Keep in mind The Window is a reef, so bring your confidence, and with a long period like that, expect longer lulls between sets.

After that, we’ve got some more solid surf rolling in, but the winds get fickle. Monday the 27th of July is another bright spot: both morning and afternoon have offshore easterly winds at 12-16 mph, with 8ft to 8ft of SW swell at 14 seconds. The combined energy is moderate to strong (2675 and 2404), and the conditions will be clean. That’s a solid day for experienced crew.

We then get a bit of a messy spell until the end of the month. The 29th of July (Wednesday) shows a huge spike: 13ft of SW swell with a 17-second period on the afternoon session – that’s very long period groundswell, and the energy is massive at 9131. The wind is cross-off from the NNE at 19 mph, keeping it clean, but that size is expert territory only. This late-July swell is promising, but we’re 12 days out, so it’s not locked in yet. The 30th and 31st go back to poor conditions with onshore winds.

Finally, we’ve got a nice little cleanup on Saturday the 1st of August. The morning shows 8ft from the WSW at 14 seconds, with cross-off ESE breeze at just 6 mph and clean conditions. The energy is moderate at 2147. That’s a solid weekend prospect, but again, it’s a way off.

To sum up: the whole period is a battle with the wind at The Window, a fairly exposed reef. There are big swells, but you gotta pick your windows. The absolute best on offer is Thursday the 23rd, with glassy or offshore conditions and clean, long-period swell. After that, Monday the 27th is a close second. The 29th is big and clean for the brave, but don’t hold your breath on that one just yet. If the wind doesn’t line up, it’s going to be a frustrating week.

Keep your eyes on the sky, Rusty out.

Short Range Forecast

Moderate rain (total 16mm), heaviest on Fri night. Very mild (max 18°C on Fri morning, min 12°C on Sun night). Winds decreasing (strong winds from the W on Fri night, light winds from the SSE by Sun night).

Days 4-6 Weather Summary

Light rain (total 8mm), mostly falling on Mon night. Very mild (max 16°C on Mon afternoon, min 11°C on Wed night). Wind will be generally light.

Friday
17
Saturday
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
0
0
0
0
0
1
2
4
3
0
1
2
1
2
1
0
3
4
4
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.1
WSW
12
1.9
WSW
12
4.5
W
13
5
W
12
5
WSW
16
4
WSW
15
3.5
WSW
14
3
WSW
13
3
SW
13
2.5
SW
12
1.9
SW
11
2.4
SW
13
2.5
SW
14
3
SW
13
2.5
SW
12
3.5
SW
13
3.5
SW
14
3
SW
14
2.5
SW
14
2.3
SW
14
2.1
SW
13
Wave Graph
Metric surfscale
Energy kJ
1333
1047
6225
6068
12392
6742
3992
2986
3078
1776
914
2042
2862
2574
2183
3725
4008
3438
2356
1912
1460
Wind (km/h)
25
N
35
N
45
WNW
40
W
35
W
25
W
20
WSW
15
SW
10
ENE
10
N
25
W
25
S
15
S
20
SSW
15
SW
20
W
25
SW
20
ESE
20
ENE
5
E
15
ENE
Wind State
cross
cross
cross-on
on
on
on
cross-on
cross-on
off
cross
on
cross
cross
cross-on
cross-on
on
cross-on
cross-off
off
glassy
cross-off
High Tide
11:10AM0.67m
11:02AM0.56m
9:40AM0.48m
4:44AM0.45m
8:19AM0.46m
4:20AM0.51m
4:44AM0.57m
5:22AM0.61m
Low Tide
8:54PM0.18m
8:14PM0.27m
6:29PM0.30m
5:55AM0.45m
5:25PM0.27m
4:18PM0.21m
4:05PM0.16m
4:15PM0.12m
part cloud
rain showers
rain showers
light rain
cloud
rain showers
rain showers
rain showers
part cloud
clear
part cloud
rain showers
clear
clear
part cloud
part cloud
rain showers
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:22
7:20
7:20
7:20
7:20
7:18
7:18
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:30
5:30
5:30
5:31
5:32
5:32
5:34
 mm
1
9
3
1
1
1
6
2
Temp °C
18
18
17
14
15
15
15
16
15
14
16
16
14
14
14
15
16
15
10
15
13
Feels °C
13
13
11
4
7
8
9
12
12
12
11
11
9
9
10
12
12
12
6
14
10
  • 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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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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