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) - 5.5ft (1.7m), 13s period with W swell.
- Evening surf: Evening surf (17 Jul, local time) - 6ft (1.8m), 12s period with W swell.
The current surf forecast for Cathedral Rock at 3AM is: 2.1m 13s primary swell from a West direction and 0.1m 12s secondary swell from a Northwest direction (forecast issued at 07:00pm July 16). The wind direction is predicted to be cross-shore.
| Time (AWST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Jul) | 6ft (1.9m) | 13s |
| Afternoon (17 Jul) | 5.5ft (1.7m) | 13s |
| Evening (17 Jul) | 6ft (1.8m) | 12s |
Table - waves today at Cathedral Rock. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 15mm), heaviest on Thu night. Very mild (max 18°C on Thu night, min 15°C on Sat night). Winds increasing (calm on Fri morning, strong winds from the W by Fri night). | |||||||||||||||||||
Thu 16 | Friday 17 | Saturday 18 | |||||||||||||||||
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 14 | WSW 14 | WSW 14 | W 13 | W 13 | W 13 | W 13 | W 13 | W 12 | W 12 | WSW 13 | WNW 7 | W 13 | W 13 | W 13 | WSW 13 | WSW 15 | WSW 15 | WSW 15 |
Wave Graph  | |||||||||||||||||||
 kJ | 1061 | 1154 | 947 | 1718 | 1397 | 1245 | 1087 | 928 | 799 | 980 | 642 | 440 | 3183 | 4079 | 4254 | 4369 | 5536 | 5673 | 4864 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-off | cross | cross | glassy | cross | cross-on | cross-on | on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 11:01AM0.88m | 11:19AM0.73m | |||||||||||||||||
Low Tide | 7:49PM0.37m | 8:08PM0.38m | 7:53PM0.40m | ||||||||||||||||
 |  |  | | |  |  |  | |  |  | | | | | | | | | |
 | — | — | — | — | 7:16 | — | — | — | — | — | — | — | 7:16 | — | — | — | — | — | — |
 | 5:30 | — | — | — | — | — | — | — | 5:31 | — | — | — | — | — | — | — | 5:31 | — | — |
mm | 8 | 5 | — | 1 | 1 | — | — | 1 | 2 | 2 | — | — | 2 | — | — | — | — | — | — |
Temp °C | 19 | 18 | 18 | 17 | 17 | 17 | 17 | 18 | 17 | 18 | 18 | 18 | 17 | 17 | 16 | 16 | 16 | 16 | 16 |
Feels °C | 13 | 18 | 16 | 15 | 16 | 18 | 15 | 13 | 12 | 12 | 11 | 10 | 8 | 8 | 8 | 9 | 10 | 11 | 12 |
Swell 1 Height (m) Direction Period (s) | WSW 14 | WSW 14 | WNW 7 | W 13 | W 13 | W 13 | W 13 | W 13 | W 12 | WSW 12 | WSW 13 | WSW 13 | — | — | — | W 18 | WSW 15 | WSW 15 | WSW 15 |
| kJ | 1061 | 1154 | 280 | 1718 | 1397 | 1245 | 1087 | 928 | 799 | 650 | 642 | 440 | — | — | — | 1039 | 5536 | 5673 | 4864 |
Swell 2 Height (m) Direction Period (s) | — | W 8 | WSW 14 | NW 12 | NW 12 | NW 12 | WNW 7 | NW 11 | NW 11 | — | — | WSW 21 | — | — | — | — | — | — | — |
| kJ | — | 69 | 947 | 6 | 6 | 5 | 68 | 5 | 5 | — | — | 42 | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WNW 7 | NW 7 | — | — | — | — | — | — | N 2 | W 12 | WNW 6 | WNW 7 | W 13 | W 13 | W 13 | WSW 13 | — | — | — |
| kJ | 450 | 312 | — | — | — | — | — | — | 1 | 980 | 237 | 398 | 3183 | 4079 | 4254 | 4369 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 144 | 144 | 144 | 144 | 28 | 0 | 1 | 58 | 318 | 318 | 363 | 377 | 377 | 493 | 493 | 687 | 370 | 309 | 309 |
Best forecast wave conditions in Rottnest Island | |||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||
Header Global | |||||||||||||||||||
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