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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 am Tuesday 12 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 7AM is: 1.2m 13s primary swell from a West-southwest direction and 0.1m 18s secondary swell from a West direction, 0.6m 3s secondary swell from a North direction (forecast issued at 01:00am May 12). The wind direction is predicted to be cross-onshore.
| Time (AWST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 May) | 4.5ft (1.3m) | 12s |
| Afternoon (12 May) | 5ft (1.5m) | 12s |
| Evening (12 May) | 6.5ft (2.0m) | 14s |
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 22°C on Tue afternoon, min 16°C on Thu night). Winds increasing (calm on Tue night, fresh winds from the SW by Thu afternoon). | ||||||||||||||||||||||||
Tuesday 12 | Wednesday 13 | Thursday 14 | ||||||||||||||||||||||
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 | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
WSW 14 | WSW 13 | WSW 12 | WSW 12 | W 13 | WSW 16 | WSW 14 | WSW 14 | WSW 15 | WSW 15 | WSW 15 | WSW 15 | WSW 15 | WSW 15 | WSW 15 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | |
425 | 437 | 537 | 608 | 865 | 721 | 1533 | 1895 | 2817 | 3341 | 3626 | 3724 | 3478 | 3114 | 2817 | 2541 | 2460 | 2212 | 2019 | 1838 | 1811 | 1643 | 1487 | 1306 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | cross-on | on | cross-on | glassy | cross | cross | cross-on | cross-on | on | cross-on | cross-on | cross | cross | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-off | cross-off | |
High Tide | 7:59AM0.71m | 6:16PM0.69m | 7:32AM0.78m | 8:07PM0.66m | 7:44AM0.89m | 10:11PM0.66m | ||||||||||||||||||
Low Tide | 00:34AM0.49m | 1:16PM0.62m | 00:43AM0.53m | 2:19PM0.54m | 00:48AM0.59m | 3:19PM0.48m | ||||||||||||||||||
 | |  | | | | | | | | |  |  | |  | | | | | |  | | |  | |
 | — | 6:56 | — | — | — | — | — | — | — | 6:56 | — | — | — | — | — | — | — | 6:58 | — | — | — | — | — | — |
 | — | — | — | — | — | 5:30 | — | — | — | — | — | — | — | 5:30 | — | — | — | — | — | — | — | 5:30 | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | |
Temp °C | 20 | 19 | 18 | 19 | 22 | 22 | 21 | 21 | 20 | 19 | 19 | 20 | 21 | 21 | 20 | 20 | 19 | 18 | 18 | 17 | 17 | 17 | 17 | 17 |
17 | 14 | 12 | 14 | 18 | 19 | 21 | 20 | 17 | 15 | 15 | 17 | 19 | 19 | 19 | 19 | 18 | 15 | 15 | 14 | 11 | 11 | 11 | 13 | |
Swell 1 Height (m) Direction Period (s) | WSW 14 | WSW 13 | WSW 12 | WSW 12 | W 13 | W 11 | WSW 14 | WSW 14 | WSW 15 | WSW 15 | WSW 15 | WSW 15 | WSW 15 | WSW 15 | WSW 15 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 |
 kJ | 425 | 437 | 537 | 608 | 865 | 426 | 1533 | 1895 | 2817 | 3341 | 3626 | 3724 | 3478 | 3114 | 2817 | 2541 | 2460 | 2212 | 2019 | 1838 | 1811 | 1643 | 1487 | 1306 |
Swell 2 Height (m) Direction Period (s) | NW 6 | NW 5 | W 18 | W 17 | W 16 | WSW 16 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 25 | 18 | 6 | 93 | 135 | 721 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | NE 2 | N 3 | N 4 | NNW 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 2 | 7 | 9 | 12 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 3 | 7 | 121 | 7 | 258 | 258 | 0 | 1 | 1 | 7 | 35 | 345 | 377 | 360 | 144 | 64 | 0 | 124 | 57 | 28 | 173 | 173 | 144 | 144 |
Best forecast wave conditions in Rottnest Island | ||||||||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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