Cathedral Rock surfForecast / WA – Rottnest Island / Australia

information circle16 Day Weather and Surf, issued 7 pm Wednesday 27 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 27 May 2026:

  • Best quality surf: Monday 1 Jun, 2PM (local time) - 10ft (3.0m), 12s period, WSW swell with cross-offshore winds.
  • Most powerful swell: Sunday 31 May, 8PM (local time) - 20ft (6.0m), 14s period, WSW swell with 14,700 kJ wave energy.
  • Next surfable swell (1★+): Friday 29 May, 2PM (local time) - 4.5ft (1.4m), 11s period with WSW 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 Friday (May 29) at 2PM. The primary swell is predicted to be 1.4m and 11s period with a secondary swell of 0.8m and 12s. 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 6.0m 14s and forecast to arrive on Sunday (May 31) at 8PM. Winds are predicted to be cross-offshore at the time the swell arrives.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+) 2PM (Fri 29th May)4.5ft (1.4m) 11s
Best Surf 2PM (Mon 1st Jun)10ft (3.0m) 12s
Most Powerful 8PM (Sun 31st May)20ft (6.0m) 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 11mm), heaviest on Wed night. Warm (max 20°C on Wed night, min 15°C on Sat morning). Winds decreasing (strong winds from the NW on Wed night, calm by Fri night).

Days 5-7 Weather Summary

Heavy rain (total 23mm), heaviest during Sat night. Warm (max 21°C on Sat night, min 15°C on Mon morning). Winds decreasing (near gales from the W on Sun afternoon, calm by Mon night).

Thursday
28
Friday
29
Saturday
30
Sunday
31
Monday
1
Tuesday
2
Wed
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)
0
0
1
1
1
2
2
1
2
0
0
0
4
3
4
2
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)
3
W
14
2.5
W
13
2.5
W
13
1.9
WSW
12
1.6
WSW
11
1.1
W
11
1
SW
10
0.9
SW
11
0.9
WSW
14
0.9
WSW
13
5
W
10
6
W
13
5
WSW
13
3.5
WSW
13
2.5
WSW
12
1.7
WSW
11
1.7
WSW
10
1.5
WSW
11
0.6
WSW
16
1.9
WSW
13
1.7
WSW
13
Wave Graph
Metric surfscale
Energy kJ
4238
2542
2157
1064
572
272
208
172
323
299
5225
11986
8570
3833
1913
656
570
534
177
1294
965
Wind (km/h)
40
W
30
WSW
25
SW
15
WSW
10
SW
5
S
5
SE
15
NE
0
ENE
50
NW
55
W
60
W
40
S
20
S
10
SSW
10
N
35
NW
30
W
30
WNW
35
NW
55
NW
cross-on
cross-on
cross
cross
cross
glassy
glassy
cross
glassy
on
cross-on
cross-on
cross-off
cross-off
cross-off
cross-on
on
cross-on
cross-on
on
on
High Tide
7:26AM0.91m
7:53AM1.02m
8:22AM1.12m
8:52AM1.19m
9:20AM1.23m
9:46AM1.23m
10:11AM1.20m
Low Tide
4:44PM0.46m
5:15PM0.48m
5:51PM0.50m
6:29PM0.52m
7:10PM0.53m
7:52PM0.53m
thunderstorm
clear
part cloud
cloud
cloud
part cloud
part cloud
clear
clear
rain showers
rain showers
rain showers
light rain
light rain
rain showers
rain showers
rain showers
rain showers
clear
part cloud
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:07
7:07
7:07
7:09
7:09
7:09
7:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:22
5:22
5:22
5:22
5:22
5:21
5:21
5:21
11
6
3
2
3
1
1
4
1
2
4
Temp °C
20
19
18
18
17
16
17
15
18
21
19
17
17
15
16
15
18
18
18
19
19
13
11
12
13
13
15
16
12
18
14
9
5
8
10
13
13
10
12
9
12
10
Swell 1
Height (m)
Direction
Period (s)
2.5
W
13
1.9
WSW
12
1.6
WSW
11
1.1
W
11
1
SW
10
0.9
SW
11
0.9
WSW
14
0.9
WSW
13
3.5
WSW
13
2.5
WSW
12
1.7
WSW
11
1.7
WSW
10
0.4
SW
18
1.3
WSW
7
1.9
WSW
13
1.7
WSW
13
Energy kJ
2157
1064
572
272
208
172
323
299
3833
1913
656
570
82
166
1294
965
Swell 2
Height (m)
Direction
Period (s)
0.6
SW
12
1
SW
12
0.8
W
11
0.6
W
10
0.5
W
8
0.6
W
12
0.6
W
15
0.9
WSW
14
0.3
WSW
18
0.5
WSW
14
0.6
WSW
13
Energy kJ
87
268
141
65
33
106
165
290
61
111
113
Swell 3
Height (m)
Direction
Period (s)
0.1
SW
18
0.4
SW
16
0.5
SW
14
0.1
W
10
0.2
WSW
19
0.4
WSW
18
0.6
WSW
16
Energy kJ
12
64
102
2
37
108
177
Wind waves
Height (m)
Direction
Period (s)
3
W
14
2.5
W
13
1.2
NW
4
5
W
10
6
W
13
5
WSW
13
1.5
WSW
11
0.8
NW
4
2.2
NW
6
Energy kJ
4238
2542
58
5225
11986
8570
534
27
364
Nearest Offshore or Glassy
Rating
(10 max)
4
4
3
2
2
2
2
2
2
4
2
2
4
4
4
3
4
3
3
4
4
Distance (km)
355
1138
360
174
28
0
0
1
0
209
377
1650
2159
28
0
1
395
377
340
355
361
Best forecast wave conditions in Rottnest Island
Rating
(10 max)
3
2
2
2
4
3
Best forecast wave conditions in Australia
Rating
(10 max)
4
4
4
4
3
3
4
4
4
4
3
4
5
9
5
4
4
4
4
4
4
Header Global
Rating
(10 max)
6
6
8
7
6
5
5
5
5
7
6
5
5
5
4
7
7
4
4
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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