Cathedral Rock surfForecast / WA – Rottnest Island / Australia

information circle48hr Weather and Surf, issued 7 pm Tuesday 21 Apr 2026 AWST
Forecast update in hr  min  s Forecast update imminent
Cathedral Rock surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Cathedral Rock sea temperature is
21.6° C
(Which is slightly cooler than normal)

How big are the waves at Cathedral Rock today?

The current surf forecast for Cathedral Rock at 10PM is: 3.0m 13s primary swell from a West-southwest direction (forecast issued at 07:00pm April 21). The wind direction is predicted to be cross-offshore and the swell rating is 4.

Time (AWST) & DateWave HeightWave Period
Morning (21 Apr)--
Afternoon (21 Apr)11ft (3.5m)14s
Evening (21 Apr)10ft (3.0m)13s

Table - waves today at Cathedral Rock. (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM
Rating
(10 max)
3
4
4
4
3
2
1
1
0
0
0
0
0
0
0
0
1
2
1
1
1
1
2
2
Swell
Height Map
Wave Height (m) & direction (?)
3.5
WSW
3
WSW
3
WSW
2.5
WSW
2.3
WSW
2.2
WSW
2
WSW
1.9
WSW
1.7
WSW
1.6
WSW
1.5
WSW
1.4
WSW
1.4
WSW
3
W
4
W
3.5
W
2
WSW
2
WSW
2.2
W
2
WSW
3
WSW
2.5
WSW
2.4
WSW
2.3
WSW
Period(s) (?)1414131313131313131313131379111212131614141414
Wave
Graph
(?)Metric surfscale
Energy kJ (?)3791329526652245184416991359121793883869964865910712564277711701189164220022876253621821987
Wind
(km/h)
15
S
10
S
10
SE
15
ESE
20
ENE
20
NE
15
NNE
15
WNW
20
W
20
W
20
WNW
35
NW
45
NW
60
W
55
W
40
W
35
WSW
20
WSW
15
WSW
20
W
20
W
20
W
15
W
15
SW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
off
offcross-
off
cross-
off
crosscross-
on
cross-
on
cross-
on
cross-
on
onononcross-
on
cross-
on
cross-
on
crosscrosscross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross
High Tide
/ height (m)
12:02PM
1.11
12:46PM
1.04
1:47PM
0.94
Low Tide
/ height (m)
11:19PM
0.42
12:32AM
0.40
1:23AM
0.39
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Sunrise-----6:43-------6:43-------6:43--
Sunset5:51-------5:50-------5:49-------
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
cloud
light rain
rain showers
clear
clear
cloud
cloud
cloud
part cloud
cloud
clear
clear
Rain (mm)
-------------31---------
Temp. °C171717151515161718181819191819191918181818181918
Feels °C (?)1314141110101213141414121188101214151514141715
  • 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

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 Cathedral Rock 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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