
Surf Forecasts:
How big are the waves at Cathedral Rock today (11 Aug):
- Morning surf: Morning surf (11 Aug, local time) - 10ft (3.0m), 16s period with WSW swell.
- Afternoon surf: Afternoon surf (11 Aug, local time) - 8ft (2.5m), 16s period with WSW swell.
- Evening surf: Evening surf (11 Aug, local time) - 8ft (2.5m), 16s period with WSW swell.
The current surf forecast for Cathedral Rock at 1AM is: 3.5m 13s primary swell from a West-southwest direction and 3.5m 12s secondary swell from a West-southwest direction (forecast issued at 07:00pm August 10). The wind direction is predicted to be cross-offshore.
| Time (AWST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 Aug) | 10ft (3.0m) | 16s |
| Afternoon (11 Aug) | 8ft (2.5m) | 16s |
| Evening (11 Aug) | 8ft (2.5m) | 16s |
Table - waves today at Cathedral Rock. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 6mm), mostly falling on Mon night. Very mild (max 16°C on Tue afternoon, min 12°C on Mon night). Winds decreasing (near gales from the SSW on Mon night, calm by Wed morning). | |||||||||||||||||||
Mon 10 | Tuesday 11 | Wednesday 12 | |||||||||||||||||
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 | |||||||||||||||||||
Wave Height (m) Direction Period (s) | WSW 10 | SW 12 | WSW 12 | WSW 13 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 15 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 14 |
Wave Graph | |||||||||||||||||||
2608 | 3260 | 3514 | 3980 | 5355 | 4883 | 4789 | 3685 | 3456 | 3740 | 3113 | 2716 | 2454 | 1846 | 1670 | 1504 | 1370 | 1370 | 1244 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-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 | glassy | glassy | cross-on | cross-off | cross-off | off |
High Tide | 8:20AM1.10m | 9:10AM1.03m | |||||||||||||||||
Low Tide | 4:52PM0.34m | 5:25PM0.33m | 5:54PM0.33m | ||||||||||||||||
— | — | — | — | 6:58 | — | — | — | — | — | — | — | 6:58 | — | — | — | — | — | — | |
5:46 | — | — | — | — | — | — | — | 5:47 | — | — | — | — | — | — | — | 5:47 | — | — | |
mm | 2 | 2 | 2 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 12 | 12 | 12 | 12 | 12 | 13 | 14 | 16 | 16 | 16 | 16 | 14 | 15 | 14 | 15 | 16 | 15 | 15 |
Feels °C | 1 | 0 | 2 | 2 | 3 | 5 | 8 | 9 | 11 | 10 | 10 | 12 | 12 | 14 | 13 | 14 | 13 | 12 | 12 |
Swell 1 Height (m) Direction Period (s) | — | W 11 | — | WSW 13 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 15 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 14 |
— | 585 | — | 3980 | 5355 | 4883 | 4789 | 3685 | 3456 | 3740 | 3113 | 2716 | 2454 | 1846 | 1670 | 1504 | 1370 | 1370 | 1244 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | W 10 | W 10 | W 10 | W 9 | W 9 | — | — | — | — | — | — | W 24 | SW 24 | — | WSW 21 |
— | — | — | — | 104 | 49 | 31 | 185 | 225 | — | — | — | — | — | — | 11 | 22 | — | 89 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | WSW 10 | SW 12 | WSW 12 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
2608 | 3260 | 3514 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 2019 | 2019 | 144 | 144 | 33 | 28 | 28 | 124 | 57 | 118 | 28 | 28 | 0 | 0 | 0 | 173 | 0 | 28 | 0 |
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)











