Surf Forecasts:
How big are the waves at Cathedral Rock today (25 Aug):
- Morning surf: Morning surf (25 Aug, local time) - 4.5ft (1.4m), 12s period with WSW swell.
- Afternoon surf: Afternoon surf (25 Aug, local time) - 4.5ft (1.4m), 14s period with WSW swell.
- Evening surf: Evening surf (25 Aug, local time) - 6ft (1.9m), 13s period with WSW swell.
The current surf forecast for Cathedral Rock at 9AM is: 1.4m 12s primary swell from a West-southwest direction and 0.4m 16s secondary swell from a West-southwest direction (forecast issued at 01:00am August 25). The wind direction is predicted to be cross-onshore.
| Time (AWST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (25 Aug) | 4.5ft (1.4m) | 12s |
| Afternoon (25 Aug) | 4.5ft (1.4m) | 14s |
| Evening (25 Aug) | 6ft (1.9m) | 13s |
Table - waves today at Cathedral Rock. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 75mm), heaviest during Wed afternoon. Very mild (max 18°C on Tue night, min 13°C on Wed night). Winds increasing (calm on Wed afternoon, near gales from the S by Wed night). | ||||||||||||||||||||||||
Tuesday 25 | Wednesday 26 | Thursday 27 | ||||||||||||||||||||||
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 12 | WSW 12 | WSW 12 | WSW 15 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 15 | WSW 15 | WSW 19 | WSW 18 | WSW 18 | WSW 17 | WSW 17 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 15 | WSW 15 | WSW 14 | WSW 14 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 745 | 699 | 656 | 405 | 970 | 799 | 1398 | 1026 | 1172 | 2558 | 3204 | 6595 | 7020 | 6749 | 6226 | 6204 | 6022 | 3544 | 3456 | 3606 | 3062 | 2717 | 2200 | 1929 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | cross-on | on | on | on | on | on | on | cross-on | cross-on | glassy | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 7:10AM0.97m | 7:56AM0.93m | 11:32PM0.58m | 8:39AM0.87m | ||||||||||||||||||||
Low Tide | 4:11PM0.38m | 4:25PM0.35m | 1:25AM0.57m | 4:40PM0.32m | ||||||||||||||||||||
 | |  | |  | |  | |  |  |  |  |  | |  |  |  | |  | | | | |  | |
 | — | 6:43 | — | — | — | — | — | — | — | 6:43 | — | — | — | — | — | — | — | 6:41 | — | — | — | — | — | — |
 | — | — | — | — | — | 5:55 | — | — | — | — | — | — | — | 5:57 | — | — | — | — | — | — | — | 5:58 | — | — |
mm | — | — | — | — | — | — | — | — | 1 | 3 | 5 | 7 | 13 | 12 | 9 | 12 | 5 | 2 | — | 2 | 2 | 1 | 1 | — |
Temp °C | 15 | 16 | 16 | 16 | 17 | 17 | 18 | 18 | 18 | 17 | 16 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 14 | 14 | 14 |
Feels °C | 11 | 12 | 11 | 10 | 11 | 11 | 13 | 13 | 13 | 13 | 11 | 12 | 14 | 12 | 13 | 4 | 3 | 1 | 3 | 3 | 3 | 4 | 5 | 6 |
Swell 1 Height (m) Direction Period (s) | WSW 13 | WSW 12 | WSW 12 | WSW 12 | WSW 15 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 15 | WSW 15 | WSW 19 | WSW 18 | WSW 18 | WSW 17 | WSW 17 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 15 | WSW 15 | WSW 14 | WSW 14 |
| kJ | 745 | 699 | 656 | 405 | 970 | 799 | 1398 | 1026 | 1172 | 2558 | 3204 | 6595 | 7020 | 6749 | 6226 | 6204 | 6022 | 3544 | 3456 | 3606 | 3062 | 2717 | 2200 | 1929 |
Swell 2 Height (m) Direction Period (s) | — | — | SW 17 | WSW 15 | WSW 15 | — | W 24 | W 24 | WSW 22 | W 21 | W 20 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | 43 | 256 | 314 | — | 11 | 11 | 95 | 233 | 799 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | NNW 4 | NW 4 | WNW 5 | NNW 4 | W 8 | WNW 7 | — | — | — | — | — | — | — | SSW 6 | SSW 7 | SSW 7 | S 6 | S 6 | SSE 5 | SSE 5 | SSE 5 |
| kJ | — | — | — | 12 | 26 | 80 | 26 | 265 | 220 | — | — | — | — | — | — | — | 432 | 625 | 444 | 185 | 158 | 94 | 109 | 82 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 121 | 35 | 299 | 363 | 377 | 377 | 377 | 299 | 121 | 209 | 166 | 144 | 0 | 7 | 1 | 28 | 1650 | 144 | 659 | 1144 | 1650 | 1650 | 144 | 144 |
Best forecast wave conditions in Rottnest Island | ||||||||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||||||||
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