Surf Forecasts:
How big are the waves at Cathedral Rock today (19 Aug):
- Morning surf: Morning surf (19 Aug, local time) - 8ft (2.5m), 15s period with WSW swell.
- Afternoon surf: Afternoon surf (19 Aug, local time) - 8ft (2.5m), 15s period with WSW swell.
- Evening surf: Evening surf (19 Aug, local time) - 10ft (3.0m), 16s period with WSW swell.
The current surf forecast for Cathedral Rock at 6AM is: 2.5m 15s primary swell from a West-southwest direction (forecast issued at 01:00am August 19). The wind direction is predicted to be cross-onshore.
| Time (AWST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 Aug) | 8ft (2.5m) | 15s |
| Afternoon (19 Aug) | 8ft (2.5m) | 15s |
| Evening (19 Aug) | 10ft (3.0m) | 16s |
Table - waves today at Cathedral Rock. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 2mm), mostly falling on Wed morning. Very mild (max 17°C on Wed morning, min 13°C on Fri morning). Winds increasing (light winds from the ESE on Thu morning, fresh winds from the SSE by Fri night). | ||||||||||||||||||||||||
Wednesday 19 | Thursday 20 | Friday 21 | ||||||||||||||||||||||
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 |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | WSW 16 | WSW 15 | WSW 15 | WSW 15 | WSW 15 | WSW 15 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 15 | WSW 15 | WSW 15 | WSW 15 | WSW 14 | WSW 14 | WSW 14 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 3863 | 3311 | 2700 | 2516 | 2786 | 3424 | 4004 | 4056 | 4161 | 4320 | 3944 | 3351 | 2986 | 2696 | 2696 | 2491 | 2549 | 2396 | 2094 | 2038 | 1847 | 2061 | 1983 | 1600 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-off | off | 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 | off |
High Tide | 00:56AM0.69m | 1:43AM0.77m | 2:45AM0.84m | |||||||||||||||||||||
Low Tide | 4:07PM0.31m | 4:05PM0.34m | 4:03PM0.38m | |||||||||||||||||||||
 |  |  |  | | |  |  | | | | | | | | | | | | | | | | | |
 | — | 6:50 | — | — | — | — | — | — | — | 6:50 | — | — | — | — | — | — | — | 6:48 | — | — | — | — | — | — |
 | — | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:53 | — | — |
mm | 1 | — | 1 | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 16 | 16 | 17 | 17 | 17 | 17 | 15 | 15 | 14 | 14 | 14 | 16 | 17 | 16 | 16 | 15 | 14 | 13 | 14 | 17 | 17 | 17 | 17 |
Feels °C | 10 | 10 | 13 | 14 | 14 | 14 | 15 | 12 | 12 | 11 | 11 | 12 | 14 | 13 | 12 | 11 | 10 | 10 | 9 | 11 | 14 | 12 | 11 | 13 |
Swell 1 Height (m) Direction Period (s) | WSW 16 | WSW 15 | WSW 15 | WSW 15 | WSW 15 | WSW 15 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 15 | WSW 15 | WSW 15 | WSW 15 | WSW 14 | WSW 14 | WSW 14 |
| kJ | 3863 | 3311 | 2700 | 2516 | 2786 | 3424 | 4004 | 4056 | 4161 | 4320 | 3944 | 3351 | 2986 | 2696 | 2696 | 2491 | 2549 | 2396 | 2094 | 2038 | 1847 | 2061 | 1983 | 1600 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 26 | — | WSW 24 | — | — | WSW 20 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 13 | — | 54 | — | — | 485 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | S 4 | S 4 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 9 | 15 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 309 | 309 | 299 | 144 | 173 | 173 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 64 | 64 | 0 | 0 | 3 | 28 | 0 | 32 | 144 | 144 | 0 |
Best forecast wave conditions in Rottnest Island | ||||||||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||||||||
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