Surf Forecasts:
How big are the waves at Derrs today (17 Aug):
- Morning surf: Morning surf (17 Aug, local time) - 7ft (2.1m), 16s period with WSW swell.
- Afternoon surf: Afternoon surf (17 Aug, local time) - 13ft (4.0m), 8s period with WSW swell.
- Evening surf: Evening surf (17 Aug, local time) - 15ft (4.5m), 12s period with WSW swell.
The current surf forecast for Derrs at 6PM is: 4.5m 10s primary swell from a West-southwest direction (forecast issued at 01:00pm August 17). The wind direction is predicted to be onshore.
| Time (AWST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Aug) | 7ft (2.1m) | 16s |
| Afternoon (17 Aug) | 13ft (4.0m) | 8s |
| Evening (17 Aug) | 15ft (4.5m) | 12s |
Table - waves today at Derrs. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 3mm), mostly falling on Mon afternoon. Very mild (max 16°C on Mon afternoon, min 14°C on Tue morning). Winds decreasing (strong winds from the WSW on Mon afternoon, calm by Thu morning). | |||||||||||||||||||||
Mon 17 | Tuesday 18 | Wednesday 19 | |||||||||||||||||||
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 8 | WSW 10 | WSW 12 | WSW 14 | WSW 15 | WSW 15 | WSW 15 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 15 | WSW 15 | WSW 15 | WSW 16 | WSW 16 | WSW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 2136 | 1778 | 3848 | 5659 | 6513 | 7456 | 7194 | 6929 | 7293 | 7024 | 6756 | 5968 | 5193 | 4456 | 3566 | 2976 | 2691 | 3062 | 3981 | 4797 | 4797 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | on | on | on | on | glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | glassy | cross-off | cross-on | on | cross-on | cross-on |
High Tide | 9:19AM0.33m | 00:38AM0.51m | 1:07AM0.54m | ||||||||||||||||||
Low Tide | 4:39PM0.21m | 4:20PM0.18m | 3:35PM0.15m | ||||||||||||||||||
 | |  |  | | |  |  | | | |  | | | | |  | | | | | |
 | — | — | — | — | — | — | 6:50 | — | — | — | — | — | — | — | 6:48 | — | — | — | — | — | — |
 | — | — | 5:51 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — |
mm | 1 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 16 | 15 | 15 | 15 | 15 | 15 | 14 | 16 | 16 | 16 | 15 | 15 | 14 | 14 | 14 | 16 | 16 | 16 | 16 | 16 |
Feels °C | 11 | 8 | 6 | 7 | 9 | 10 | 12 | 12 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 13 | 14 | 13 | 14 | 14 | 14 |
Swell 1 Height (m) Direction Period (s) | WSW 16 | — | — | — | WSW 14 | WSW 15 | WSW 15 | WSW 15 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 15 | WSW 15 | WSW 15 | WSW 16 | WSW 16 | WSW 16 |
| kJ | 2136 | — | — | — | 6513 | 7456 | 7194 | 6929 | 7293 | 7024 | 6756 | 5968 | 5193 | 4456 | 3566 | 2976 | 2691 | 3062 | 3981 | 4797 | 4797 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WNW 6 | WSW 8 | WSW 10 | WSW 12 | WSW 13 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 200 | 1778 | 3848 | 5659 | 5038 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1104 | 658 | 748 | 900 | 873 | 344 | 220 | 0 | 272 | 434 | 334 | 303 | 331 | 272 | 272 | 0 | 0 | 81 | 220 | 186 | 81 |
Best forecast wave conditions in Perth City Coast | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
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