Cottesloe Beach Surf Break

Lat Long: 31.99° S 115.74° E

Cottesloe Beach 48 hour detailed Surf Forecast

Issued: 1 pm 18 Sep 2026 (local time)

Forecast update in  hr  min

Today's Cottesloe Beach sea temperature is
18.5°C
0.1° 

Cottesloe Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Cottesloe Beach today (18 Sep):

  • Morning surf: Morning surf (18 Sep, local time) - 3ft (0.9m), 12s period with WSW swell.
  • Afternoon surf: Afternoon surf (18 Sep, local time) - 2.5ft (0.8m), 18s period with WSW swell.
  • Evening surf: Evening surf (18 Sep, local time) - 8ft (2.5m), 17s period with W swell.

The current surf forecast for Cottesloe Beach at 5PM is: 2.2m 18s primary swell from a West direction (forecast issued at 01:00pm September 18). The wind direction is predicted to be onshore.

Time (AWST) & DateWave HeightWave Period
Morning (18 Sep)3ft (0.9m)12s
Afternoon (18 Sep)2.5ft (0.8m)18s
Evening (18 Sep)8ft (2.5m)17s

Table - waves today at Cottesloe Beach. (Swell directed towards the surf break)


Short Range Forecast

Light rain (total 5mm), mostly falling on Fri night. Warm (max 21°C on Fri afternoon, min 14°C on Fri night). Winds decreasing (strong winds from the WNW on Fri night, calm by Sun night).

Fri
18
Saturday
19
Sunday
20
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
3
3
2
1
3
3
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)
0.9
WSW
12
0.8
WSW
18
2.2
W
18
2.5
W
17
2.5
WNW
9
3.5
W
9
4
W
13
4.5
W
14
4.5
W
14
4.5
W
14
4
W
13
3.5
WSW
12
3
WSW
13
2.4
W
13
2.5
WSW
13
1.4
WSW
13
1.5
WSW
13
1.6
WSW
10
1.4
SW
13
1.4
SW
13
1.3
WSW
13
Wave Graph
Metric surfscale
Energy kJ
258
418
2946
4278
1131
1945
5488
8020
7961
7047
5364
3633
3097
1992
2028
648
784
492
613
732
555
Wind (km/h)
20
NNW
35
NW
35
W
40
WNW
40
NW
40
NW
45
WNW
45
WNW
45
WNW
40
W
30
W
25
W
20
WSW
20
W
15
WNW
15
S
10
SE
15
SSW
15
SSW
15
S
10
SSE
Wind State
cross-on
on
on
on
on
on
on
on
on
on
cross-on
cross-on
cross-on
cross-on
on
cross-off
cross-off
cross
cross
cross-off
cross-off
High Tide
00:24AM0.56m
1:40AM0.53m
3:27AM0.53m
Low Tide
2:16PM0.13m
2:35PM0.11m
2:43AM0.53m
2:52PM0.11m
cloud
clear
cloud
light rain
rain showers
light rain
cloud
light rain
part cloud
part cloud
cloud
cloud
clear
part cloud
cloud
light rain
cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:11
6:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:09
6:09
6:10
 mm
1
1
1
1
1
Temp °C
22
21
17
14
15
17
16
16
17
17
17
17
17
17
17
16
16
17
16
16
15
Feels °C
18
15
12
7
8
9
7
7
8
9
10
12
13
14
15
14
15
15
13
14
13
  • 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
How to use the Wavefinder 

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 Cottesloe Beach 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.


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