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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 Thursday 18 Sep 2025 AWST
How big are the waves at Cathedral Rock today?
The current surf forecast for Cathedral Rock at 6PM is: 2.5m 14s primary swell from a West-southwest direction (forecast issued at 01:00pm September 18). The wind direction is predicted to be cross-shore.
| Time (AWST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Sep) | 7ft (2.2m) | 11s |
| Afternoon (18 Sep) | 7ft (2.2m) | 12s |
| Evening (18 Sep) | 8ft (2.5m) | 14s |
Table - waves today at Cathedral Rock. (Swell directed towards the surf break)
Thursday 18 | Friday 19 | Saturday 20 | Sunday 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 | 12 | 14 | 14 | 14 | 14 | 14 | 14 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1330 | 1291 | 2452 | 2710 | 2673 | 2522 | 2606 | 2643 | 2717 | 2717 | 2680 | 2460 | 2200 | 2005 | 1723 | 1534 | 1318 | 1280 | 1204 | 965 | 837 | 824 | 862 | 760 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross | cross | cross | cross | cross- off | cross- off | off | cross- off | cross- off | cross- off | cross- off | off | off | off | cross- off | cross- off | cross- off | cross- off | cross- off | off | off | cross- off |
High Tide / height (m) | 11:29PM 0.55 | 7:57AM 0.77 | 10:19PM 0.50 | 8:41AM 0.68 | 9:46PM 0.50 | |||||||||||||||||||
Low Tide / height (m) | 3:57PM 0.31 | 12:23AM 0.55 | 4:02PM 0.32 | 1:54AM 0.45 | 3:53PM 0.33 | 2:49AM 0.36 | ||||||||||||||||||
Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 6:11 | - | - | - | - | - | - | - | 6:11 | - | - | - | - | - | - | - | 6:09 |
| Sunset | - | - | 6:10 | - | - | - | - | - | - | - | 6:12 | - | - | - | - | - | - | - | 6:12 | - | - | - | - | - |
 |  | |  |  |  | | |  | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 15 | 15 | 15 | 15 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 14 | 14 | 14 | 15 | 15 | 16 | 15 | 15 | 16 | 14 |
| Feels °C (?) | 9 | 8 | 9 | 9 | 11 | 10 | 11 | 13 | 15 | 15 | 13 | 12 | 12 | 13 | 11 | 12 | 12 | 12 | 10 | 11 | 11 | 12 | 13 | 11 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for WA - Rottnest Island
Recent cross-shore wind 30 km from Cathedral Rock has fallen light (calm at Swanbourne Automatic Weather Station). Waves should be turning clean at Cathedral Rock. 2.6m 13s groundswell from the WSW with a 2.4m 12s groundswell, also from the WSW. 2 swells combining so expect closeout sets.
30 km away, 1 h 23 min ago
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