Surf Forecasts:
How big are the waves at Cathedral Rock today (17 Sep):
- Morning surf: Morning surf (17 Sep, local time) - 3.5ft (1.1m), 14s period with WSW swell.
- Afternoon surf: Afternoon surf (17 Sep, local time) - 3.5ft (1.1m), 14s period with WSW swell.
- Evening surf: Evening surf (17 Sep, local time) - 3.5ft (1.0m), 13s period with WSW swell.
The current surf forecast for Cathedral Rock at 7AM is: 1.1m 14s primary swell from a West-southwest direction and 0.1m 21s secondary swell from a Southwest direction, 0.6m 3s secondary swell from a North direction (forecast issued at 01:00am September 17). The wind direction is predicted to be cross-onshore.
| Time (AWST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Sep) | 3.5ft (1.1m) | 14s |
| Afternoon (17 Sep) | 3.5ft (1.1m) | 14s |
| Evening (17 Sep) | 3.5ft (1.0m) | 13s |
Table - waves today at Cathedral Rock. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 3mm), mostly falling on Fri night. Warm (max 22°C on Thu morning, min 16°C on Fri night). Winds increasing (calm on Thu night, strong winds from the WNW by Fri night). | ||||||||||||||||||||||||
Thursday 17 | Friday 18 | Saturday 19 | ||||||||||||||||||||||
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 15 | WSW 15 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 12 | WSW 18 | WSW 18 | WSW 17 | WNW 9 | W 10 | W 11 | W 14 | W 14 | W 14 | W 13 | WSW 13 | WSW 13 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 537 | 485 | 465 | 352 | 415 | 342 | 326 | 303 | 298 | 350 | 258 | 258 | 418 | 547 | 763 | 1502 | 2508 | 3612 | 6978 | 8070 | 7244 | 5482 | 3751 | 3049 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross-on | on | on | cross-on | glassy | cross-on | cross-on | cross-on | cross-on | on | on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 11:49PM0.80m | 00:23AM0.84m | 1:04AM0.86m | |||||||||||||||||||||
Low Tide | 2:35PM0.33m | 2:38PM0.36m | 2:41PM0.38m | |||||||||||||||||||||
 | |  | | | | | | | |  |  | | |  |  |  | |  | | | | | | |
 | — | 6:15 | — | — | — | — | — | — | — | 6:13 | — | — | — | — | — | — | — | 6:11 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:09 | — | — | — | — | — | — | — | 6:10 | — | — | — | — | — | — | — | 6:12 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | 1 | 1 | — | — | — | — | — |
Temp °C | 22 | 23 | 22 | 20 | 19 | 19 | 18 | 18 | 17 | 17 | 17 | 20 | 21 | 19 | 16 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 |
Feels °C | 20 | 19 | 17 | 18 | 17 | 17 | 18 | 20 | 15 | 13 | 14 | 15 | 13 | 14 | 8 | 9 | 9 | 8 | 7 | 7 | 9 | 10 | 11 | 13 |
Swell 1 Height (m) Direction Period (s) | WSW 15 | WSW 15 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 17 | WSW 16 | — | — | — | — | — | — | WSW 13 | WSW 13 |
| kJ | 537 | 485 | 465 | 352 | 415 | 342 | 326 | 303 | 298 | 350 | 258 | 258 | 246 | 303 | 763 | 807 | — | — | — | — | — | — | 3751 | 3049 |
Swell 2 Height (m) Direction Period (s) | W 21 | W 21 | SW 21 | WSW 20 | WSW 20 | WSW 19 | WSW 18 | WNW 4 | W 4 | WSW 16 | WSW 20 | WSW 17 | WSW 18 | WSW 18 | — | — | — | — | — | — | — | — | — | — |
| kJ | 9 | 9 | 17 | 37 | 38 | 36 | 65 | 8 | 9 | 198 | 128 | 216 | 418 | 547 | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | SW 18 | SW 18 | W 4 | SW 16 | — | — | W 15 | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 83 | 87 | 9 | 67 | — | — | 38 | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NE 2 | N 3 | N 3 | NNW 4 | NNW 4 | NW 4 | NW 4 | — | — | NW 4 | NNW 4 | NW 4 | NW 5 | NW 6 | WNW 7 | WNW 9 | W 10 | W 11 | W 14 | W 14 | W 14 | W 13 | — | — |
| kJ | 1 | 5 | 8 | 11 | 9 | 8 | 6 | — | — | 14 | 12 | 18 | 41 | 136 | 539 | 1502 | 2508 | 3612 | 6978 | 8070 | 7244 | 5482 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 1 | 7 | 7 | 258 | 355 | 410 | 50 | 0 | 3 | 50 | 7 | 253 | 318 | 318 | 318 | 325 | 629 | 472 | 629 | 749 | 1901 | 1651 | 1650 | 370 |
Best forecast wave conditions in Rottnest Island | ||||||||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||||||||
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