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Surf Forecasts:

Cathedral Rock surfForecast / WA – Rottnest Island / Australia

information circle12 Day Weather and Surf, issued 7 pm Monday 12 Jan 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
21.7° 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 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Jan 14) at 11AM. The primary swell is predicted to be 1.1m and 14s period with a secondary swell of 0.7m and 8s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Cathedral Rock in the next 12 days are 1.6m 18s and forecast to arrive on Tuesday (Jan 20) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 6s period and expected on Monday (Jan 19) at 8PM.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+)11AM (Wed 14th Jan)3.5ft (1.1m) 14s
Best Surf 8AM (Sun 18th Jan)6ft (1.9m) 13s
Most Powerful 2AM (Tue 20th Jan)5ft (1.6m) 18s

Table - best surf conditions forecast for Cathedral Rock over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Mostly dry. Warm (max 27°C on Thu morning, min 18°C on Tue night). Winds decreasing (strong winds from the SSW on Mon night, light winds from the SE by Thu morning).

Days 3-6 Weather Summary Mostly dry. Warm (max 29°C on Fri morning, min 16°C on Sun morning). Winds increasing (light winds from the SSE on Fri morning, strong winds from the SSW by Sat night).

Tuesday
13
Wednesday
14
Thursday
15
Friday
16
Saturday
17
Sunday
18
Mon
19
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
0
0
1
2
0
0
2
0
2
2
0
0
0
0
1
2
1
0
1
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.9
SW
0.8
WSW
2.1
SW
1.4
SW
1.1
WSW
1.1
WSW
0.9
WSW
1
WSW
1
WSW
1
WSW
0.9
WSW
1.1
WSW
1.1
WSW
1.1
WSW
1.3
WSW
1.3
WSW
1.9
WSW
2.1
SW
1.3
WSW
1.4
WSW
1.8
SW
Period(s) (?)8141391414141413131314141414131313131212
Wave
Graph
(?)Metric surfscale
Energy kJ (?)423232153730747847229738433633626944748747464360612831457543563913
Wind
(km/h)
40
S
25
S
45
SW
35
ESE
15
S
40
SSW
35
E
10
SE
35
S
15
SE
5
SSE
30
SW
25
SSW
25
WSW
35
WSW
35
S
25
S
35
SSW
35
S
20
SSW
40
SSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		cross-
off		crossoffcross-
off		cross-
off		cross-
off		offcross-
off		offcross-
off		crosscross-
off		cross-
on		crosscross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off
High Tide
/ height (m)
5:37PM
0.85
6:19PM
0.95
6:59PM
1.03
7:36PM
1.07
8:11PM
1.07
8:46PM
1.03
Low Tide
/ height (m)
5:16AM
0.23
4:57AM
0.27
4:51AM
0.30
4:58AM
0.30
5:14AM
0.29
5:35AM
0.27
5:58AM
0.24
Tuesday
13
Wednesday
14
Thursday
15
Friday
16
Saturday
17
Sunday
18
Mon
19
Sunrise-5:24--5:24--5:26--5:26--5:28--5:28--5:30-
Sunset--7:28--7:27--7:27--7:27--7:27--7:27--7:25
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
Rain (mm)
---------------------
Temp. °C202021242222252726272927212021201719191820
Feels °C (?)131616171916212621242825191817141212131414
  • 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

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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.

View detailed surf forecast for Cathedral Rock at:
surf-forecast.com

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 12 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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