Surf Forecasts:
How big are the waves at Cathedral Rock today (17 Jul):
- Morning surf: Morning surf (17 Jul, local time) - 6ft (1.9m), 13s period with W swell.
- Afternoon surf: Afternoon surf (17 Jul, local time) - 5ft (1.6m), 13s period with W swell.
- Evening surf: Evening surf (17 Jul, local time) - 7.5ft (2.3m), 13s period with WNW swell.
The current surf forecast for Cathedral Rock at 12PM is: 1.8m 13s primary swell from a West direction and 0.7m 7s secondary swell from a Northwest direction (forecast issued at 07:00am July 17). The wind direction is predicted to be cross-onshore.
| Time (AWST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Jul) | 6ft (1.9m) | 13s |
| Afternoon (17 Jul) | 5ft (1.6m) | 13s |
| Evening (17 Jul) | 7.5ft (2.3m) | 13s |
Table - waves today at Cathedral Rock. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 11mm), heaviest on Fri afternoon. Very mild (max 19°C on Fri afternoon, min 15°C on Sat morning). Winds decreasing (strong winds from the W on Fri night, calm by Sun afternoon). | |||||||||||||||||||||||
Friday 17 | Saturday 18 | Sunday 19 | |||||||||||||||||||||
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 | W 13 | W 13 | W 13 | WSW 12 | WNW 12 | W 13 | WNW 7 | W 14 | W 13 | W 12 | WSW 13 | WSW 14 | WSW 15 | WSW 15 | WSW 15 | W 14 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 13 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 854 | 1245 | 1087 | 928 | 727 | 1568 | 1866 | 452 | 3220 | 4377 | 3806 | 4461 | 5152 | 5916 | 5087 | 4085 | 2127 | 2702 | 2350 | 1777 | 1581 | 1255 | 1120 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross-on | glassy | glassy | cross-off |
High Tide | 11:01AM0.88m | 11:19AM0.73m | 2:26AM0.50m | 11:11AM0.60m | |||||||||||||||||||
Low Tide | 8:08PM0.38m | 7:53PM0.40m | 4:23AM0.50m | 6:32PM0.40m | |||||||||||||||||||
 |  |  |  | |  | |  |  | | |  | |  | |  | | | |  | | | | |
 | 7:16 | — | — | — | — | — | — | — | 7:16 | — | — | — | — | — | — | — | 7:15 | — | — | — | — | — | — |
 | — | — | — | — | 5:31 | — | — | — | — | — | — | — | 5:31 | — | — | — | — | — | — | — | 5:32 | — | — |
mm | — | — | — | 1 | 3 | 2 | — | 1 | 1 | — | 1 | — | — | — | — | — | 1 | — | — | 1 | — | — | — |
Temp °C | 17 | 18 | 18 | 18 | 19 | 19 | 19 | 18 | 17 | 17 | 15 | 15 | 16 | 16 | 16 | 15 | 16 | 16 | 17 | 15 | 16 | 16 | 16 |
Feels °C | 15 | 18 | 16 | 15 | 14 | 13 | 11 | 10 | 7 | 8 | 7 | 8 | 11 | 11 | 11 | 10 | 12 | 12 | 14 | 13 | 15 | 15 | 14 |
Swell 1 Height (m) Direction Period (s) | WSW 13 | W 13 | W 13 | W 13 | WSW 12 | — | WSW 14 | WSW 14 | — | — | — | W 17 | WSW 14 | WSW 15 | WSW 15 | WSW 15 | W 14 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 13 |
| kJ | 854 | 1245 | 1087 | 928 | 727 | — | 694 | 452 | — | — | — | 1326 | 5152 | 5916 | 5087 | 4085 | 2127 | 2702 | 2350 | 1777 | 1581 | 1255 | 1120 |
Swell 2 Height (m) Direction Period (s) | W 7 | NW 12 | NW 7 | NW 11 | — | — | — | WSW 21 | — | — | — | — | — | — | — | — | WSW 15 | — | W 13 | — | — | — | — |
| kJ | 159 | 5 | 54 | 5 | — | — | — | 42 | — | — | — | — | — | — | — | — | 1258 | — | 55 | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | NNW 4 | WNW 12 | W 13 | WNW 7 | W 14 | W 13 | W 12 | WSW 13 | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | 52 | 1568 | 1866 | 448 | 3220 | 4377 | 3806 | 4461 | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 144 | 28 | 1 | 258 | 144 | 258 | 363 | 363 | 377 | 1138 | 1650 | 687 | 375 | 309 | 309 | 309 | 309 | 29 | 28 | 34 | 0 | 0 | 0 |
Best forecast wave conditions in Rottnest Island | |||||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||||
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