Surf Forecasts:
How big are the waves at Derrs today (17 Jul):
- Afternoon surf: Afternoon surf (17 Jul, local time) - 5ft (1.6m), 13s period with WSW swell.
- Evening surf: Evening surf (17 Jul, local time) - 8ft (2.4m), 13s period with W swell.
The current surf forecast for Derrs at 11PM is: 1.4m 13s primary swell from a West-southwest direction and 1.9m 7s secondary swell from a West-northwest direction (forecast issued at 07:00pm July 17). The wind direction is predicted to be cross-onshore.
| Time (AWST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Jul) | - | - |
| Afternoon (17 Jul) | 5ft (1.6m) | 13s |
| Evening (17 Jul) | 8ft (2.4m) | 13s |
Table - waves today at Derrs. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 3mm), mostly falling on Fri night. Very mild (max 18°C on Fri night, min 13°C on Mon morning). Winds decreasing (fresh winds from the W on Sat morning, calm by Mon morning). | |||||||||||||||||||
Fri 17 | Saturday 18 | Sunday 19 | |||||||||||||||||
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 12 | W 13 | WSW 13 | WSW 14 | W 14 | WSW 13 | WSW 13 | WSW 13 | WSW 15 | WSW 16 | WSW 16 | WSW 15 | WSW 15 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 13 |
Wave Graph  | |||||||||||||||||||
 kJ | 800 | 1821 | 663 | 1032 | 3371 | 4105 | 4555 | 4162 | 6696 | 6533 | 5700 | 4774 | 3746 | 3199 | 2598 | 2171 | 1744 | 1533 | 1188 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross | cross-on | on | on | on | on | on | on | on | on | on | on | on | on | cross-on | glassy |
High Tide | 11:01AM0.50m | 2:35AM0.36m | 10:02AM0.42m | ||||||||||||||||
Low Tide | 7:29PM0.15m | 6:45PM0.21m | 5:05AM0.35m | 6:12PM0.22m | |||||||||||||||
 |  |  | | |  |  | | |  | | | | | |  | | | | |
 | — | — | — | — | 7:13 | — | — | — | — | — | — | — | 7:13 | — | — | — | — | — | — |
 | 5:31 | — | — | — | — | — | — | — | 5:31 | — | — | — | — | — | — | — | 5:32 | — | — |
mm | 4 | 1 | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 18 | 18 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 17 | 17 | 17 | 16 | 15 |
Feels °C | 16 | 14 | 14 | 13 | 12 | 10 | 10 | 11 | 12 | 12 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 14 | 14 |
Swell 1 Height (m) Direction Period (s) | WSW 12 | — | WSW 13 | WSW 14 | — | — | — | WSW 13 | WSW 15 | WSW 16 | WSW 16 | WSW 15 | WSW 15 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 13 |
| kJ | 800 | — | 663 | 1032 | — | — | — | 4162 | 6696 | 6533 | 5700 | 4774 | 3746 | 3199 | 2598 | 2171 | 1744 | 1533 | 1188 |
Swell 2 Height (m) Direction Period (s) | — | — | — | WSW 21 | — | — | — | WSW 17 | — | WSW 16 | — | — | WSW 15 | — | W 13 | — | — | — | — |
| kJ | — | — | — | 42 | — | — | — | 1514 | — | 891 | — | — | 1258 | — | 87 | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NW 5 | W 13 | WNW 7 | WNW 7 | W 14 | WSW 13 | WSW 13 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 70 | 1821 | 342 | 360 | 3371 | 4105 | 4555 | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 299 | 303 | 397 | 408 | 408 | 458 | 1635 | 654 | 339 | 339 | 331 | 272 | 272 | 186 | 86 | 186 | 186 | 41 | 0 |
Best forecast wave conditions in Perth City Coast | |||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||
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