Surf Forecasts:
How big are the waves at Cathedral Rock today (31 Jul):
- Morning surf: Morning surf (31 Jul, local time) - 5ft (1.5m), 17s period with WSW swell.
- Afternoon surf: Afternoon surf (31 Jul, local time) - 5.5ft (1.7m), 16s period with WSW swell.
- Evening surf: Evening surf (31 Jul, local time) - 6ft (1.9m), 16s period with WSW swell.
The current surf forecast for Cathedral Rock at 5PM is: 1.8m 16s primary swell from a West-southwest direction and 0.6m 4s secondary swell from a Northwest direction (forecast issued at 01:00pm July 31). The wind direction is predicted to be onshore.
| Time (AWST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 Jul) | 5ft (1.5m) | 17s |
| Afternoon (31 Jul) | 5.5ft (1.7m) | 16s |
| Evening (31 Jul) | 6ft (1.9m) | 16s |
Table - waves today at Cathedral Rock. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 2mm), mostly falling on Fri night. Warm (max 20°C on Fri afternoon, min 10°C on Sun morning). Winds decreasing (fresh winds from the SSW on Fri night, light winds from the NE by Sun afternoon). | |||||||||||||||||||||
Fri 31 | Saturday 1 | Sunday 2 | |||||||||||||||||||
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 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 15 | WSW 15 | WSW 15 | WSW 14 | WSW 15 | WSW 15 | WSW 15 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1108 | 1354 | 1756 | 1881 | 2033 | 1750 | 1527 | 1431 | 2042 | 2178 | 2148 | 2615 | 2268 | 2178 | 1874 | 1579 | 1299 | 1261 | 1127 | 1093 | 936 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-off | cross-off |
High Tide | 9:57AM0.92m | 1:03AM0.53m | 10:31AM0.81m | 00:45AM0.52m | 11:05AM0.71m | ||||||||||||||||
Low Tide | 6:23PM0.35m | 3:06AM0.52m | 6:28PM0.35m | 4:10AM0.48m | 6:19PM0.38m | ||||||||||||||||
 | |  |  |  |  |  |  | | | | | | | | | | | | | | |
 | — | — | — | — | — | — | 7:07 | — | — | — | — | — | — | — | 7:07 | — | — | — | — | — | — |
 | — | — | 5:40 | — | — | — | — | — | — | — | 5:40 | — | — | — | — | — | — | — | 5:42 | — | — |
mm | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 19 | 20 | 19 | 17 | 17 | 16 | 14 | 14 | 14 | 14 | 15 | 13 | 12 | 11 | 10 | 12 | 16 | 18 | 18 | 16 |
Feels °C | 12 | 14 | 15 | 14 | 12 | 11 | 8 | 7 | 8 | 8 | 8 | 9 | 7 | 6 | 5 | 2 | 5 | 12 | 16 | 14 | 11 |
Swell 1 Height (m) Direction Period (s) | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 15 | WSW 15 | WSW 15 | WSW 14 | WSW 15 | WSW 15 | WSW 15 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 13 |
| kJ | 1108 | 1354 | 1756 | 1881 | 2033 | 1750 | 1527 | 1431 | 2042 | 2178 | 2148 | 2615 | 2268 | 2178 | 1874 | 1579 | 1299 | 1261 | 1127 | 1093 | 936 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | SW 7 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 242 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NNW 3 | NNW 3 | NW 4 | WNW 4 | WSW 5 | SW 6 | SW 7 | — | — | — | — | — | — | — | E 3 | ENE 3 | NE 4 | — | — | — | — |
| kJ | 3 | 4 | 11 | 28 | 59 | 147 | 247 | — | — | — | — | — | — | — | 4 | 8 | 6 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 121 | 377 | 377 | 299 | 309 | 299 | 144 | 144 | 144 | 144 | 144 | 64 | 3 | 3 | 28 | 28 | 35 | 1 | 1 | 28 | 28 |
Best forecast wave conditions in Rottnest Island | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
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