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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 pm Saturday 18 Apr 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
22.1° 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 6PM is: 2.2m 11s primary swell from a West-southwest direction and 0.6m 16s secondary swell from a West-southwest direction (forecast issued at 01:00pm April 18). The wind direction is predicted to be cross-offshore and the swell rating is 3.
| Time (AWST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Apr) | 8ft (2.4m) | 11s |
| Afternoon (18 Apr) | 7ft (2.2m) | 11s |
| Evening (18 Apr) | 6.5ft (2.0m) | 11s |
Table - waves today at Cathedral Rock. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | |||||||||||||||||||||
| 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 | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 14 | 15 | 14 | 9 | 11 | 11 | 13 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1324 | 1265 | 1163 | 1034 | 942 | 731 | 655 | 630 | 1214 | 1043 | 1074 | 1042 | 908 | 894 | 894 | 958 | 1093 | 1178 | 1225 | 862 | 2403 | 3821 | 3490 | 4257 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross | cross | cross | cross- off | cross- off | off | glass | glass | cross | cross- off | cross- off | cross- off | glass | on | on | on | on | on | cross | cross | cross | cross |
High Tide / height (m) | 9:44AM 0.97 | 10:14AM 1.06 | 10:47AM 1.12 | |||||||||||||||||||||
Low Tide / height (m) | 5:56PM 0.41 | 7:28PM 0.43 | 9:23PM 0.43 | |||||||||||||||||||||
Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 6:41 | - | - | - | - | - | - | - | 6:41 | - | - | - | - | - | - | - | 6:41 |
| Sunset | - | - | 5:53 | - | - | - | - | - | - | - | 5:52 | - | - | - | - | - | - | - | 5:52 | - | - | - | - | - |
 |  |  |  | |  | | | | | | | | | | | | | | |  |  | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 5 | - | - | - |
| Temp. °C | 18 | 18 | 18 | 18 | 18 | 17 | 17 | 17 | 16 | 16 | 17 | 17 | 17 | 17 | 18 | 18 | 18 | 19 | 20 | 20 | 17 | 16 | 17 | 16 |
| Feels °C (?) | 14 | 14 | 14 | 15 | 16 | 15 | 15 | 16 | 15 | 15 | 14 | 14 | 15 | 15 | 17 | 16 | 13 | 12 | 11 | 11 | 4 | 5 | 6 | 7 |
- 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
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