- Forecast
- Maps
- Live
- Weather State
- Spot Information
Cathedral Rock Surf Forecast
/ WA – Rottnest Island (6 breaks) / Western Australia (159 breaks) /
Surf Forecasts:
Cathedral Rock surfForecast / WA – Rottnest Island / Australia
48hr Weather and Surf, issued 1 pm Wednesday 20 May 2026 AWSTForecast 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
21.8° C
(Which is normal for this time of year)How big are the waves at Cathedral Rock today?
The current surf forecast for Cathedral Rock at 5PM is: 1.4m 14s primary swell from a West-southwest direction (forecast issued at 01:00pm May 20). The wind direction is predicted to be glassy and the swell rating is 3.
| Time (AWST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 May) | 5ft (1.5m) | 14s |
| Afternoon (20 May) | 5ft (1.5m) | 14s |
| Evening (20 May) | 4ft (1.2m) | 13s |
Table - waves today at Cathedral Rock. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastSome drizzle, heaviest during Thu afternoon. Warm (max 21°C on Wed afternoon, min 12°C on Sat morning). Winds increasing (calm on Wed afternoon, fresh winds from the SSW by Thu afternoon). | ||||||||||||||||||||||||
Wed 20 | Thursday 21 | Friday 22 | Sat 23 | |||||||||||||||||||||
11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | SW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | SW 13 | SW 13 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | |
956 | 899 | 735 | 506 | 491 | 917 | 1047 | 1240 | 1240 | 1415 | 1824 | 961 | 829 | 805 | 1134 | 972 | 918 | 918 | 966 | 864 | 680 | 605 | 527 | 491 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | glassy | off | cross-off | glassy | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | cross-off | cross-off | off | off | cross-off | cross-off | cross-off | |
High Tide | 11:08AM1.19m | 11:43AM1.09m | 12:13PM0.96m | |||||||||||||||||||||
Low Tide | 10:28PM0.43m | 11:30PM0.43m | 00:14AM0.44m | |||||||||||||||||||||
 |  | |  | | |  |  | | |  | | | | | | | | |  | | | | | |
 | — | — | — | — | — | — | 7:03 | — | — | — | — | — | — | — | 7:03 | — | — | — | — | — | — | — | 7:03 | — |
 | — | — | 5:25 | — | — | — | — | — | — | — | 5:25 | — | — | — | — | — | — | — | 5:24 | — | — | — | — | 5:24 |
— | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 20 | 20 | 21 | 21 | 21 | 20 | 20 | 20 | 20 | 19 | 18 | 17 | 18 | 18 | 17 | 16 | 15 | 15 | 16 | 18 | 17 | 15 | 13 | 12 |
18 | 19 | 21 | 20 | 20 | 20 | 20 | 19 | 18 | 14 | 11 | 10 | 10 | 11 | 11 | 10 | 10 | 9 | 10 | 12 | 13 | 11 | 8 | 7 | |
Swell 1 Height (m) Direction Period (s) | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | — | WSW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | SW 13 | SW 13 | WSW 12 | WSW 12 | WSW 12 | WSW 12 |
 kJ | 956 | 899 | 735 | 506 | 491 | 917 | 1047 | 1240 | 1240 | 1415 | — | 961 | 829 | 805 | 1134 | 972 | 918 | 918 | 966 | 864 | 680 | 605 | 527 | 491 |
Swell 2 Height (m) Direction Period (s) | — | — | — | WSW 16 | WSW 16 | — | — | — | — | — | — | — | — | — | W 18 | W 18 | — | — | — | — | — | — | — | — |
| kJ | — | — | — | 201 | 333 | — | — | — | — | — | — | — | — | — | 6 | 6 | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NNW 3 | — | — | — | — | — | — | — | — | — | SW 14 | SW 6 | SW 7 | SW 7 | — | — | — | — | — | — | ESE 2 | ESE 3 | ENE 3 | ENE 3 |
| kJ | 2 | — | — | — | — | — | — | — | — | — | 1824 | 239 | 237 | 189 | — | — | — | — | — | — | 1 | 3 | 3 | 4 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 377 | 452 | 144 | 144 | 144 | 29 | 64 | 29 | 0 | 144 | 144 | 28 | 0 | 28 | 28 | 1 |
Best forecast wave conditions in Rottnest Island | ||||||||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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.
Nearest