Cathedral Rock surfForecast / WA – Rottnest Island / Australia

information circle16 Day Weather and Surf, issued 7 pm Thursday 28 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
21.6° C
(Which is normal for this time of year)

Cathedral Rock surf forecast from 28 May 2026:

  • Best quality surf: Tuesday 2 Jun, 2AM (local time) - 7ft (2.2m), 12s period, WSW swell with cross-offshore winds.
  • Most powerful swell: Sunday 31 May, 8PM (local time) - 21ft (6.5m), 14s period, W swell with 17,811 kJ wave energy.
  • Next surfable swell (1★+): Saturday 30 May, 2AM (local time) - 3.5ft (1.0m), 10s period with SW swell.

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 Saturday (May 30) at 2AM. The primary swell is predicted to be 1.0m and 10s period with a secondary swell of 0.8m and 11s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Cathedral Rock in the next 16 days are 6.5m 14s and forecast to arrive on Sunday (May 31) at 8PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.1m 6s period and expected on Saturday (May 30) at 11PM.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Sat 30th May)3.5ft (1.0m) 10s
Best Surf 2AM (Tue 2nd Jun)7ft (2.2m) 12s
Most Powerful 8PM (Sun 31st May)21ft (6.5m) 14s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Moderate rain (total 14mm), heaviest on Sat night. Warm (max 21°C on Sat night, min 16°C on Fri night). Winds increasing (light winds from the SW on Fri night, severe gales from the W by Sun afternoon).

Days 5-7 Weather Summary

Heavy rain (total 31mm), heaviest during Tue night. Very mild (max 19°C on Tue night, min 15°C on Tue night). Winds decreasing (gales from the WSW on Sun night, calm by Tue morning).

Friday
29
Saturday
30
Sunday
31
Monday
1
Tuesday
2
Wednesday
3
Thu
4
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Rating
(10 max)
1
2
0
2
1
0
0
0
0
0
2
2
4
2
0
0
0
0
0
0
0
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)
1.9
WSW
12
1.6
WSW
11
1.2
W
11
1
SW
10
0.9
SW
11
0.9
WSW
14
3
NW
8
5.5
W
12
6
W
13
6
WSW
14
4
WSW
14
3
WSW
13
2.2
WSW
12
1.6
WSW
11
1.2
WSW
11
2.1
WNW
6
3
W
8
2.5
W
8
2.5
W
12
3
W
9
2.5
WSW
10
Wave Graph
Metric surfscale
Energy kJ
1064
634
326
200
172
318
1047
7377
12524
13621
6418
3383
1332
619
323
320
1110
912
1921
1160
1480
Wind (km/h)
15
SW
15
SW
15
WSW
10
SSE
20
NE
35
NE
65
NW
75
WNW
80
W
60
SW
45
SW
30
SSW
15
SSW
5
WNW
20
NNW
40
NW
45
W
45
W
60
WNW
45
WSW
45
SW
cross
cross
cross-on
cross-off
cross-off
cross
on
cross-on
cross-on
cross
cross-off
cross-off
cross-off
on
on
on
cross-on
cross-on
cross-on
cross
cross
High Tide
7:53AM1.02m
8:22AM1.12m
8:52AM1.19m
9:20AM1.23m
9:46AM1.23m
10:11AM1.20m
10:37AM1.13m
Low Tide
5:15PM0.48m
5:51PM0.50m
6:29PM0.52m
7:10PM0.53m
7:52PM0.53m
8:33PM0.51m
cloud
cloud
cloud
part cloud
part cloud
light rain
thunderstorm
light rain
light rain
mod rain
cloud
cloud
rain showers
rain showers
rain showers
rain showers
thunderstorm
rain showers
mod rain
rain showers
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:07
7:07
7:09
7:09
7:09
7:09
7:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:22
5:22
5:22
5:22
5:21
5:21
5:21
5:21
2
7
4
1
6
1
3
2
14
4
1
7
2
2
Temp °C
18
17
17
17
16
19
21
17
17
18
18
18
18
16
17
19
19
18
19
17
17
13
13
14
14
12
13
12
4
2
5
9
11
13
16
15
11
11
8
8
8
7
Swell 1
Height (m)
Direction
Period (s)
1.9
WSW
12
1.6
WSW
11
1.2
W
11
1
SW
10
0.9
SW
11
0.9
WSW
14
0.8
WSW
13
3
WSW
13
2.2
WSW
12
1.6
WSW
11
1.2
WSW
11
0.7
SW
13
0.9
WSW
16
Energy kJ
1064
634
326
200
172
318
222
3383
1332
619
323
178
366
Swell 2
Height (m)
Direction
Period (s)
0.6
SW
12
0.9
SW
12
0.8
W
11
0.6
W
8
0.5
W
8
0.2
WSW
19
0.4
SW
18
0.4
SW
18
0.5
WSW
16
0.4
WSW
21
Energy kJ
87
224
141
49
30
37
79
82
151
147
Swell 3
Height (m)
Direction
Period (s)
0.1
SW
18
0.4
SW
16
0.5
SW
14
0.3
W
10
0.4
WSW
18
Energy kJ
12
64
102
18
106
Wind waves
Height (m)
Direction
Period (s)
0.4
NE
3
0.8
NNE
4
3
NW
8
5.5
W
12
6
W
13
6
WSW
14
4
WSW
14
0.4
NNE
3
0.9
WNW
9
2.1
WNW
6
3
W
8
2.5
W
8
2.5
W
12
3
W
9
2.5
WSW
10
Energy kJ
3
16
1047
7377
12524
13621
6418
3
113
320
1110
912
1921
1160
1480
Nearest Offshore or Glassy
Rating
(10 max)
4
2
2
2
2
3
3
2
2
4
5
4
4
3
2
3
3
2
2
4
3
Distance (km)
299
144
144
0
1
35
2495
1650
1650
2047
1138
144
0
7
50
363
2459
417
1650
1138
2019
Best forecast wave conditions in Rottnest Island
Rating
(10 max)
2
2
4
3
Best forecast wave conditions in Australia
Rating
(10 max)
4
3
4
4
4
4
2
2
2
5
5
4
5
4
4
4
4
4
3
4
3
Header Global
Rating
(10 max)
9
7
5
5
5
5
7
7
6
5
5
4
5
5
4
4
5
5
5
4
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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