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Surf Forecasts:
Cathedral Rock surfForecast / WA – Rottnest Island / Australia
48hr Weather and Surf, issued 1 am Friday 19 Dec 2025 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
22.5° C
(Which is 2.0°C warmer than 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: 1.0m 11s primary swell from a Southwest direction and 0.2m 17s secondary swell from a West-southwest direction (forecast issued at 01:00am December 19). An open ocean swell of 0.5m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (AWST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 Dec) | 3ft (0.9m) | 11s |
| Afternoon (19 Dec) | 3.5ft (1.0m) | 11s |
| Evening (19 Dec) | 7ft (2.1m) | 6s |
Table - waves today at Cathedral Rock. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 19 | Saturday 20 | Sunday 21 | ||||||||||||||||||||||
| 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 | 11 AM | 2 PM | 5 PM | 8 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |  |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 8 | 9 | 11 | 11 | 11 | 11 | 11 | 6 | 7 | 7 | 7 | 7 | 7 | 8 | 7 | 8 | 9 | 9 | 13 | 13 | 13 | 13 | 13 | 13 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 279 | 243 | 303 | 207 | 151 | 224 | 2 | 292 | 403 | 513 | 268 | 211 | 322 | 444 | 537 | 684 | 460 | 362 | 746 | 700 | 572 | 757 | 1053 | 484 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | cross- off | cross- off | off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | off | off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | 8:01PM 1.03 | 8:29PM 1.08 | 8:57PM 1.09 | |||||||||||||||||||||
Low Tide / height (m) | 5:33AM 0.29 | 6:03AM 0.29 | 6:36AM 0.28 | |||||||||||||||||||||
Friday 19 | Saturday 20 | Sunday 21 | ||||||||||||||||||||||
| Sunrise | - | - | - | 5:07 | - | - | - | - | - | - | - | 5:07 | - | - | - | - | - | - | - | 5:07 | - | - | - | - |
| Sunset | - | - | - | - | - | - | 7:22 | - | - | - | - | - | - | - | 7:22 | - | - | - | - | - | - | - | 7:22 | - |
 | | |  |  | |  | | | |  | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 22 | 19 | 19 | 19 | 21 | 21 | 20 | 19 | 19 | 17 | 17 | 18 | 18 | 19 | 20 | 22 | 20 | 16 | 15 | 15 | 19 | 19 | 19 | 19 |
| Feels °C (?) | 15 | 13 | 14 | 15 | 18 | 16 | 13 | 10 | 11 | 9 | 10 | 13 | 11 | 10 | 11 | 12 | 11 | 8 | 8 | 9 | 16 | 12 | 12 | 12 |
- 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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