Cottesloe Beach Surf Break

Lat Long: 31.99° S 115.74° E

Cottesloe Beach 48 hour detailed Surf Forecast

Issued: 7 am 18 Sep 2026 (local time)

Forecast update in  hr  min

Today's Cottesloe Beach sea temperature is
17.7°C
0.9° 

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 10AM is: 0.9m 12s primary swell from a West-southwest direction and 0.6m 17s secondary swell from a West-southwest direction, 0.6m 4s secondary swell from a North-northwest direction (forecast issued at 07:00am September 18). The wind direction is predicted to be cross-shore.

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 3mm), mostly falling on Fri night. Warm (max 22°C on Fri afternoon, min 15°C on Fri night). Winds decreasing (strong winds from the WNW on Fri night, calm by Sun night).

Friday
18
Saturday
19
Sunday
20
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
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
0
1
1
3
4
3
2
1
2
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.1
WSW
12
0.9
WSW
12
0.9
WSW
12
0.8
WSW
18
2.3
W
18
2.5
W
17
2.5
W
9
3.5
W
16
4
W
14
4.5
W
14
4.5
W
14
4.5
W
14
4
W
13
3.5
WSW
13
3
WSW
13
2.5
W
13
2.5
WSW
13
2.2
WSW
13
1.6
W
12
1.5
WSW
13
1.3
WSW
13
1.4
SW
13
1.3
WSW
13
Wave Graph
Metric surfscale
Energy kJ
350
263
258
418
3268
4284
1113
5662
6851
7348
7595
6796
5445
3751
3049
2133
1997
1550
748
772
520
711
555
Wind (km/h)
15
N
20
NNE
20
N
30
NW
40
W
40
WNW
40
NW
40
NW
45
WNW
40
WNW
40
WNW
40
W
35
W
25
WSW
20
WSW
15
WSW
10
SW
15
SE
5
ESE
15
SSW
15
SSW
15
S
15
SSE
Wind State
cross-on
cross
cross
on
on
on
cross-on
on
on
on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
off
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
clear
part cloud
cloud
clear
cloud
cloud
light rain
part cloud
cloud
cloud
part cloud
cloud
part cloud
cloud
part cloud
cloud
light rain
light rain
cloud
part cloud
clear
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:13
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
Temp °C
16
16
21
22
17
15
16
17
17
16
17
17
17
17
17
17
16
15
16
17
17
16
15
Feels °C
15
13
17
17
11
8
9
9
8
7
8
9
10
13
14
14
15
13
16
15
14
12
12
  • 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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