Cathedral Rock surfForecast / WA – Rottnest Island / Australia

information circle16 Day Weather and Surf, issued 7 pm Sunday 26 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)

Best Forecast Surf Conditions for Cathedral Rock this week:

The surf forecast for Cathedral Rock over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Apr 26) at 11PM. The primary swell is predicted to be 0.9m and 21s period with a secondary swell of 1.2m and 13s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Cathedral Rock in the next 16 days are 2.0m 16s and forecast to arrive on Monday (Apr 27) at 5PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 5s period and expected on Thursday (Apr 30) at 11PM.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+)11PM (Sun 26th Apr)3ft (0.9m) 21s
Best Surf 5AM (Mon 27th Apr)4.5ft (1.3m) 19s
Most Powerful 5PM (Mon 27th Apr)6.5ft (2.0m) 16s

Table - best surf conditions forecast for Cathedral Rock over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 31mm), heaviest during Mon morning. Warm (max 20°C on Sun night, min 15°C on Sun night). Mainly strong winds.

Days 5-7 Weather Summary

Mostly dry. Warm (max 20°C on Wed night, min 12°C on Fri night). Winds decreasing (strong winds from the S on Thu night, light winds from the SE by Sat morning).

Monday
27
Tuesday
28
Wednesday
29
Thursday
30
Friday
1
Saturday
2
Sun
3
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Rating
(10 max)
2
1
2
3
3
2
2
3
1
2
1
0
1
0
1
2
2
0
2
1
1
Swell
Height Map
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<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
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<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
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Wave
Height (m)
Direction
Period (s)
1.1
WSW
20
1.8
WSW
18
2
WSW
16
1.7
WSW
16
1.7
WSW
15
1.7
WSW
14
1.7
WSW
14
1.6
WSW
14
1.6
WSW
13
1.4
WSW
13
1.4
WSW
14
1.4
WSW
14
1.3
WSW
13
1.3
WSW
13
1.8
SW
13
1.6
SW
13
1.4
SW
12
1.4
SW
12
1.1
SW
12
0.9
WSW
12
0.9
SW
12
Wave Graph
Metric surfscale
Energy kJ
942
2024
2051
1397
1208
1191
1095
889
863
700
690
690
545
528
1077
837
609
603
373
243
195
Wind (km/h)
15
NNE
40
SSE
25
S
25
SE
20
ESE
25
ESE
20
ESE
20
SE
30
SSW
25
SE
25
SSE
35
S
35
SSE
40
SSE
35
SSE
30
SE
20
SE
30
S
25
ESE
10
ESE
20
SSE
cross-on
cross-off
cross-off
off
off
off
cross-off
off
cross-off
off
cross-off
cross-off
cross-off
cross-off
off
off
off
cross-off
off
off
off
High Tide
9:22AM0.65m
7:19PM0.65m
8:37AM0.67m
8:26PM0.59m
8:25AM0.75m
9:22PM0.55m
8:37AM0.84m
10:16PM0.53m
8:59AM0.93m
11:39PM0.53m
9:25AM1.02m
9:50AM1.09m
Low Tide
2:13AM0.45m
1:57PM0.58m
1:48AM0.48m
2:53PM0.49m
1:26AM0.49m
3:41PM0.44m
1:12AM0.50m
4:29PM0.43m
1:00AM0.51m
5:19PM0.44m
00:24AM0.53m
6:14PM0.48m
7:17PM0.51m
light rain
heavy rain
rain showers
cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:46
6:47
6:48
6:48
6:48
6:50
6:50
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:45
5:44
5:43
5:42
5:40
5:40
5:39
5:38
5
23
3
Temp °C
20
16
17
16
16
19
17
17
20
20
17
18
17
17
16
13
12
16
17
15
19
16
10
13
11
13
15
13
15
16
15
13
13
9
12
8
4
7
10
11
11
15
Swell 1
Height (m)
Direction
Period (s)
1.2
WSW
13
1.8
WSW
18
2
WSW
16
1.7
WSW
16
1.7
WSW
15
1.7
WSW
14
1.7
WSW
14
1.6
WSW
14
1.6
WSW
13
1.4
WSW
13
1.4
WSW
14
1.4
WSW
14
1.3
SW
7
1.3
WSW
13
1.8
SW
13
1.6
SW
13
1.4
SW
12
1.4
SW
12
1.1
SW
12
0.9
WSW
12
0.9
SW
12
Energy kJ
444
2024
2051
1397
1208
1191
1095
889
863
700
690
690
167
528
1077
837
609
603
373
243
195
Swell 2
Height (m)
Direction
Period (s)
1.1
WSW
20
1.3
WSW
13
1.1
SW
8
0.1
W
18
0.2
WSW
16
Energy kJ
942
545
143
6
26
Swell 3
Height (m)
Direction
Period (s)
0.3
S
4
0.1
W
22
Energy kJ
2
9
Wind waves
Height (m)
Direction
Period (s)
0.9
SSW
4
0.6
S
4
0.7
S
4
0.5
SSE
4
0.4
S
3
0.4
SSE
3
0.9
SSW
4
1.2
S
5
1.1
S
5
0.9
S
5
1
SE
4
0.6
SE
4
0.8
S
4
0.5
ESE
3
0.3
ESE
3
Energy kJ
29
13
20
10
3
3
25
75
54
36
40
10
19
7
2
Nearest Offshore or Glassy
Rating
(10 max)
4
4
4
4
3
3
4
3
2
3
2
4
2
3
2
3
2
1
2
1
1
Distance (km)
1
144
144
28
0
28
3
0
144
28
144
1908
144
1650
145
28
0
144
0
0
0
Best forecast wave conditions in Rottnest Island
Rating
(10 max)
4
4
4
3
3
2
2
1
Best forecast wave conditions in Australia
Rating
(10 max)
7
8
6
5
5
5
4
4
4
4
4
4
4
3
4
4
4
4
4
3
4
Header Global
Rating
(10 max)
7
8
6
6
5
5
5
9
6
7
5
5
4
7
6
5
5
5
4
4
5
  • Map Icons:
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  • 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 Cathedral Rock Surf forecast

The above surf forecast table for Cathedral Rock provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Cathedral Rock can be found by selecting the local surf guide option on the grey menu. Our Cathedral Rock 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 (Cathedral Rock) 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 Cathedral Rock 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.

Cathedral Rock is 31 km (19 miles) from the very large city of Fremantle. If you plan a holiday in Rottnest Island, look for hotels and other accommodation in Fremantle. Fremantle has rooms for a wide range of budgets as well as cheap car hire and transport links.

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