Surf Forecasts:
How big are the waves at Cathedral Rock today (16 Aug):
- Morning surf: Morning surf (16 Aug, local time) - 5ft (1.6m), 14s period with WSW swell.
- Afternoon surf: Afternoon surf (16 Aug, local time) - 6ft (1.8m), 15s period with WSW swell.
- Evening surf: Evening surf (16 Aug, local time) - 6.5ft (2.0m), 14s period with WSW swell.
The current surf forecast for Cathedral Rock at 6AM is: 1.5m 13s primary swell from a West-southwest direction and 0.9m 16s secondary swell from a West-southwest direction, 0.5m 3s secondary swell from a North-northeast direction (forecast issued at 01:00am August 16). The wind direction is predicted to be cross-shore.
| Time (AWST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 Aug) | 5ft (1.6m) | 14s |
| Afternoon (16 Aug) | 6ft (1.8m) | 15s |
| Evening (16 Aug) | 6.5ft (2.0m) | 14s |
Table - waves today at Cathedral Rock. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 4mm), mostly falling on Mon afternoon. Warm (max 22°C on Sun afternoon, min 14°C on Mon night). Winds decreasing (near gales from the WSW on Mon afternoon, light winds from the W by Tue morning). | ||||||||||||||||||||||||
Sunday 16 | Monday 17 | Tuesday 18 | ||||||||||||||||||||||
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 14 | WSW 16 | WSW 15 | WSW 14 | WSW 14 | WSW 14 | WSW 15 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 15 | WSW 13 | WSW 14 | WSW 15 | WSW 15 | WSW 15 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 |
Wave Graph | ||||||||||||||||||||||||
793 | 892 | 813 | 1531 | 1358 | 1321 | 1598 | 1644 | 1857 | 2032 | 1826 | 1849 | 3840 | 5250 | 4190 | 2749 | 2620 | 5162 | 4864 | 5055 | 5319 | 5133 | 4764 | 4026 | |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross | cross | cross-on | cross-on | cross | cross | cross-on | cross-on | on | on | cross-on | cross | cross | cross | cross | cross | cross | cross-on | cross-on | on | on | on |
High Tide | 11:45PM0.50m | 11:04AM0.51m | 11:55PM0.54m | 10:40AM0.44m | 00:20AM0.61m | |||||||||||||||||||
Low Tide | 4:57AM0.38m | 5:03PM0.35m | 5:59AM0.40m | 4:32PM0.32m | 4:15PM0.31m | |||||||||||||||||||
— | 6:54 | — | — | — | — | — | — | — | 6:52 | — | — | — | — | — | — | — | 6:52 | — | — | — | — | — | — | |
— | — | — | — | — | 5:51 | — | — | — | — | — | — | — | 5:51 | — | — | — | — | — | — | — | 5:52 | — | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 4 | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 15 | 16 | 18 | 21 | 22 | 21 | 18 | 17 | 17 | 18 | 18 | 16 | 15 | 16 | 15 | 14 | 14 | 14 | 14 | 15 | 15 | 15 | 15 |
Feels °C | 13 | 9 | 9 | 11 | 16 | 16 | 15 | 12 | 10 | 10 | 13 | 10 | 6 | 5 | 6 | 7 | 7 | 10 | 10 | 11 | 11 | 10 | 11 | 11 |
Swell 1 Height (m) Direction Period (s) | WSW 13 | WSW 13 | WSW 14 | WSW 16 | WSW 15 | WSW 14 | WSW 14 | WSW 14 | WSW 15 | WSW 16 | WSW 16 | WSW 16 | — | — | — | WSW 14 | WSW 15 | WSW 15 | WSW 15 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 |
793 | 892 | 813 | 1531 | 1358 | 1321 | 1598 | 1644 | 1857 | 2032 | 1826 | 1849 | — | — | — | 2749 | 2620 | 5162 | 4864 | 5055 | 5319 | 5133 | 4764 | 4026 | |
Swell 2 Height (m) Direction Period (s) | — | WSW 16 | WSW 16 | — | WSW 20 | W 20 | — | WSW 21 | — | — | — | — | — | — | — | W 10 | W 10 | — | — | — | — | — | — | — |
— | 457 | 343 | — | 131 | 202 | — | 90 | — | — | — | — | — | — | — | 1275 | 1090 | — | — | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 18 | W 18 | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 98 | 422 | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | NNE 3 | NNE 4 | N 4 | N 4 | N 5 | N 3 | NNE 4 | NNE 4 | N 4 | NNW 5 | NW 5 | WSW 16 | WSW 15 | WSW 13 | — | — | — | — | — | — | — | — | — |
— | 3 | 11 | 14 | 13 | 11 | 10 | 14 | 27 | 41 | 48 | 60 | 3840 | 5250 | 4190 | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 1 | 28 | 144 | 329 | 7 | 3 | 1 | 35 | 258 | 345 | 1138 | 1144 | 659 | 631 | 659 | 910 | 177 | 144 | 64 | 309 | 377 | 355 | 355 | 309 |
Best forecast wave conditions in Rottnest Island | ||||||||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)













