Surf Forecasts:
How big are the waves at Cathedral Rock today (20 Jul):
- Morning surf: Morning surf (20 Jul, local time) - 5ft (1.6m), 12s period with WSW swell.
- Afternoon surf: Afternoon surf (20 Jul, local time) - 4.5ft (1.4m), 12s period with WSW swell.
- Evening surf: Evening surf (20 Jul, local time) - 4.5ft (1.4m), 12s period with WSW swell.
The current surf forecast for Cathedral Rock at 4AM is: 1.7m 13s primary swell from a West-southwest direction (forecast issued at 01:00am July 20). The wind direction is predicted to be offshore and the swell rating is 3.
| Time (AWST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Jul) | 5ft (1.6m) | 12s |
| Afternoon (20 Jul) | 4.5ft (1.4m) | 12s |
| Evening (20 Jul) | 4.5ft (1.4m) | 12s |
Table - waves today at Cathedral Rock. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 2mm), mostly falling on Tue morning. Very mild (max 17°C on Mon night, min 11°C on Wed morning). Winds increasing (light winds from the SE on Mon morning, fresh winds from the E by Wed night). | ||||||||||||||||||||||||
Monday 20 | Tuesday 21 | Wednesday 22 | ||||||||||||||||||||||
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 13 | WSW 13 | WSW 12 | WSW 12 | WSW 12 | WSW 11 | WSW 12 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 11 | WSW 14 | SW 14 | SW 13 | SW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | SW 13 | WSW 15 | WSW 14 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 995 | 838 | 826 | 658 | 532 | 556 | 527 | 702 | 621 | 603 | 590 | 466 | 908 | 961 | 854 | 828 | 700 | 620 | 630 | 649 | 640 | 613 | 1083 | 961 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | cross | cross-off | cross-off | cross-off | cross | cross | cross-off | off | off | cross-off | cross-off | off | off | off | cross-off | cross-off | off | off | off | cross-off |
High Tide | 2:17AM0.54m | 9:04AM0.53m | 2:39AM0.62m | 3:24AM0.71m | ||||||||||||||||||||
Low Tide | 5:52AM0.52m | 5:42PM0.37m | 5:23PM0.35m | 5:15PM0.35m | ||||||||||||||||||||
 | |  | | | |  |  |  | |  | | | | | | | | | | | | | | |
 | — | 7:15 | — | — | — | — | — | — | — | 7:13 | — | — | — | — | — | — | — | 7:13 | — | — | — | — | — | — |
 | — | — | — | — | — | 5:34 | — | — | — | — | — | — | — | 5:34 | — | — | — | — | — | — | — | 5:35 | — | — |
mm | 1 | 1 | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 14 | 14 | 15 | 15 | 16 | 16 | 16 | 16 | 17 | 15 | 14 | 14 | 15 | 15 | 13 | 13 | 12 | 11 | 12 | 15 | 17 | 15 | 14 |
Feels °C | 13 | 11 | 12 | 14 | 13 | 10 | 11 | 12 | 12 | 13 | 12 | 11 | 12 | 10 | 10 | 7 | 7 | 6 | 5 | 7 | 10 | 11 | 8 | 7 |
Swell 1 Height (m) Direction Period (s) | WSW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 12 | WSW 11 | WSW 12 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 11 | WSW 14 | SW 14 | SW 13 | SW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | SW 13 | WSW 15 | WSW 14 |
| kJ | 995 | 838 | 826 | 658 | 532 | 556 | 527 | 702 | 621 | 603 | 590 | 466 | 908 | 961 | 854 | 828 | 700 | 620 | 630 | 649 | 640 | 613 | 1083 | 961 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | W 10 | W 10 | W 10 | WSW 15 | WSW 14 | WSW 14 | WSW 15 | WSW 15 | WSW 15 | WSW 14 | WSW 14 | SW 18 | SW 18 | — | — | WSW 17 | SW 16 | WSW 16 | — | — |
| kJ | — | — | — | — | 8 | 8 | 8 | 123 | 163 | 175 | 125 | 121 | 167 | 285 | 261 | 12 | 12 | — | — | 115 | 264 | 330 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | SW 16 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | 10 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SE 3 | ESE 3 | ESE 3 | SE 3 | SE 3 | SE 3 | SE 3 | ESE 4 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 5 | 4 | 4 | 2 | 1 | 3 | 5 | 10 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 144 | 64 | 0 | 0 | 28 | 28 | 0 | 0 | 57 | 57 | 28 | 0 | 0 | 28 | 0 | 0 | 28 |
Best forecast wave conditions in Rottnest Island | ||||||||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||||||||
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