Surf Forecasts:
How big are the waves at Derrs today (18 Sep):
- Morning surf: Morning surf (18 Sep, local time) - 3.5ft (1.0m), 12s period with WSW swell.
- Afternoon surf: Afternoon surf (18 Sep, local time) - 3.5ft (1.0m), 18s period with WSW swell.
- Evening surf: Evening surf (18 Sep, local time) - 4.5ft (1.4m), 17s period with WSW swell.
The current surf forecast for Derrs at 12AM is: 1.1m 13s primary swell from a West-southwest direction and 0.4m 18s secondary swell from a West-southwest direction (forecast issued at 07:00pm September 17). The wind direction is predicted to be cross-offshore and the swell rating is 3.
| Time (AWST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Sep) | 3.5ft (1.0m) | 12s |
| Afternoon (18 Sep) | 3.5ft (1.0m) | 18s |
| Evening (18 Sep) | 4.5ft (1.4m) | 17s |
Table - waves today at Derrs. (Swell directed towards the surf break)
Short Range ForecastSome drizzle, heaviest during Sun morning. Warm (max 23°C on Fri afternoon, min 15°C on Thu night). Winds increasing (calm on Thu night, fresh winds from the WNW by Fri night). | |||||||||||||||||||
Thu 17 | Friday 18 | Saturday 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 14 | WSW 13 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 17 | WSW 18 | W 18 | WSW 17 | WSW 16 | WNW 9 | W 15 | W 14 | W 14 | W 14 | WSW 14 | WSW 13 | WSW 13 |
Wave Graph  | |||||||||||||||||||
 kJ | 447 | 368 | 427 | 421 | 398 | 283 | 313 | 589 | 2912 | 992 | 1180 | 1271 | 6872 | 8957 | 9303 | 7978 | 6007 | 4261 | 3347 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | glassy | cross | cross-off | cross-off | cross-off | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | on |
High Tide | 11:54PM0.57m | 00:33AM0.55m | |||||||||||||||||
Low Tide | 2:13PM0.12m | 2:32PM0.10m | |||||||||||||||||
 |  | | |  |  | | |  |  | | | | | | | | | | |
 | — | — | — | — | 6:13 | — | — | — | — | — | — | — | 6:11 | — | — | — | — | — | — |
 | 6:09 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — | — | 6:10 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 18 | 17 | 16 | 15 | 17 | 22 | 23 | 17 | 16 | 16 | 16 | 16 | 17 | 18 | 18 | 18 | 17 | 17 |
Feels °C | 18 | 20 | 18 | 15 | 13 | 15 | 18 | 17 | 12 | 10 | 10 | 10 | 9 | 9 | 10 | 12 | 13 | 14 | 15 |
Swell 1 Height (m) Direction Period (s) | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 12 | WSW 18 | — | WSW 17 | WSW 16 | WSW 16 | — | — | — | — | WSW 14 | WSW 13 | WSW 13 |
| kJ | 447 | 368 | 427 | 421 | 398 | 283 | 278 | 589 | — | 992 | 1180 | 1271 | — | — | — | — | 6007 | 4261 | 3347 |
Swell 2 Height (m) Direction Period (s) | SW 19 | SW 18 | WSW 18 | WSW 18 | WSW 18 | WSW 16 | WSW 17 | WSW 12 | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 91 | 86 | 128 | 127 | 207 | 234 | 313 | 246 | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | NW 3 | WNW 3 | WNW 4 | — | WSW 20 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 3 | 2 | 5 | — | 78 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NW 3 | — | — | — | N 3 | NW 4 | NW 4 | NW 4 | W 18 | W 7 | W 9 | WNW 9 | W 15 | W 14 | W 14 | W 14 | — | — | — |
| kJ | 4 | — | — | — | 3 | 9 | 11 | 34 | 2912 | 601 | 1137 | 1265 | 6872 | 8957 | 9303 | 7978 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 303 | 0 | 45 | 0 | 0 | 0 | 358 | 358 | 358 | 407 | 391 | 463 | 489 | 627 | 748 | 1894 | 1763 | 1635 | 324 |
Best forecast wave conditions in Perth City Coast | |||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||
Header Global | |||||||||||||||||||
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