Cathedral Rock surfForecast / WA – Rottnest Island / Australia

information circle16 Day Weather and Surf, issued 1 am Sunday 24 May 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
21.9° C
(Which is slightly warmer than usual)

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 (May 24) at 5PM. The primary swell is predicted to be 1.0m and 14s period with a secondary swell of 0.6m and 11s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Cathedral Rock in the next 16 days are 5.5m 13s and forecast to arrive on Sunday (May 31) at 8AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Monday (May 25) at 2AM.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+) 5PM (Sun 24th May)3.5ft (1.0m) 14s
Best Surf 5PM (Sun 24th May)3.5ft (1.0m) 14s
Most Powerful 8AM (Sun 31st May)18ft (5.5m) 13s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Warm (max 21°C on Tue afternoon, min 12°C on Sun morning). Winds increasing (calm on Sun afternoon, fresh winds from the NNE by Tue morning).

Days 4-6 Weather Summary

Heavy rain (total 22mm), heaviest during Wed night. Warm (max 21°C on Wed afternoon, min 18°C on Wed morning). Mainly near gales.

Sunday
24
Monday
25
Tuesday
26
Wednesday
27
Thursday
28
Friday
29
Saturday
30
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
2
0
0
1
0
0
0
0
0
0
0
2
1
1
1
2
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
WSW
11
1
WSW
14
1.2
WSW
13
0.9
WSW
13
1
WSW
15
0.8
WSW
14
0.7
WSW
13
0.6
W
19
1
W
18
1.3
WSW
16
1.5
W
16
1.6
W
15
2.3
W
13
2.1
W
13
1.8
W
12
1.4
W
11
1.2
W
11
1.9
NW
6
3.5
W
9
4
W
11
4.5
W
12
Wave Graph
Metric surfscale
Energy kJ
140
394
484
307
405
261
151
267
625
916
1145
1108
1838
1497
940
510
332
293
2225
3854
5224
Wind (km/h)
20
NE
5
S
25
NE
25
NNE
5
NW
30
NE
30
NNE
15
NW
30
NNE
40
N
25
NNW
25
WNW
15
WNW
15
W
10
W
5
NNE
5
ENE
50
N
50
WNW
60
W
50
W
cross
glassy
cross
cross
on
cross
cross-on
on
cross-on
cross-on
on
cross-on
on
cross-on
cross-on
cross-on
glassy
cross-on
cross-on
cross-on
cross-on
High Tide
10:07AM0.70m
8:37AM0.67m
7:24AM0.71m
7:08AM0.80m
7:26AM0.91m
7:53AM1.02m
8:22AM1.12m
Low Tide
00:10AM0.49m
11:29PM0.51m
4:06PM0.50m
4:18PM0.47m
4:44PM0.46m
5:15PM0.48m
5:51PM0.50m
part cloud
part cloud
clear
clear
clear
part cloud
clear
clear
part cloud
cloud
cloud
thunderstorm
part cloud
part cloud
clear
part cloud
clear
rain showers
rain showers
rain showers
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:05
7:05
7:05
7:05
7:07
7:07
7:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:23
5:23
5:22
5:22
5:22
5:22
5:22
14
8
1
2
1
Temp °C
13
17
18
15
20
20
18
21
21
19
21
21
20
20
19
18
18
20
20
19
18
8
15
14
9
15
16
11
16
18
11
15
16
18
18
17
18
19
13
11
9
6
Swell 1
Height (m)
Direction
Period (s)
0.8
WSW
11
1
WSW
14
1.2
WSW
13
0.9
WSW
13
1
WSW
15
0.8
WSW
14
0.7
WSW
13
0.8
NW
6
1
W
18
1.3
WSW
16
1.5
W
16
1.6
W
15
2.3
W
13
2.1
W
13
1.8
W
12
1.4
W
11
1.2
W
11
0.7
SW
11
Energy kJ
133
394
484
307
405
261
151
40
625
916
1145
1108
1838
1497
940
510
332
121
Swell 2
Height (m)
Direction
Period (s)
0.5
WSW
16
0.6
WSW
11
0.5
W
17
0.5
WSW
16
0.4
NNW
5
0.6
W
12
0.6
W
11
0.6
W
19
0.8
W
12
0.7
W
11
0.5
SW
12
0.7
SW
12
0.2
WSW
16
Energy kJ
140
88
149
149
8
106
89
267
171
108
69
137
25
Swell 3
Height (m)
Direction
Period (s)
0.2
WSW
20
0.2
WSW
18
0.2
NNW
5
0.3
WSW
21
0.6
W
11
0.6
NW
6
0.1
W
18
Energy kJ
38
31
3
84
82
28
6
Wind waves
Height (m)
Direction
Period (s)
0.4
NE
3
0.4
NE
3
0.6
NNE
4
0.7
NNE
3
0.9
N
5
0.4
NNE
3
1
NNW
4
1.4
NW
10
2.1
WNW
8
1.9
NW
6
3.5
W
9
4
W
11
4.5
W
12
Energy kJ
2
2
10
10
40
2
41
388
588
293
2225
3854
5224
Nearest Offshore or Glassy
Rating
(10 max)
2
2
3
3
2
2
3
2
3
4
4
4
3
2
3
3
2
3
2
1
3
Distance (km)
1
0
1
121
28
50
318
7
299
318
355
340
377
174
32
1
0
325
1144
1650
1138
Best forecast wave conditions in Rottnest Island
Rating
(10 max)
2
3
3
2
3
2
Best forecast wave conditions in Australia
Rating
(10 max)
4
4
4
4
4
4
4
5
4
4
4
4
4
4
5
5
4
4
4
3
3
Header Global
Rating
(10 max)
5
5
5
5
4
4
4
5
9
9
7
7
6
6
7
9
5
5
5
5
4
  • 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 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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