Surf Forecasts:
How big are the waves at Back Beach today (18 Aug):
- Morning surf: Morning surf (18 Aug, local time) - 15ft (4.5m), 16s period with WSW swell.
- Afternoon surf: Afternoon surf (18 Aug, local time) - 13ft (4.0m), 16s period with WSW swell.
- Evening surf: Evening surf (18 Aug, local time) - 11ft (3.5m), 16s period with WSW swell.
The current surf forecast for Back Beach at 4PM is: 4.0m 16s primary swell from a West-southwest direction (forecast issued at 07:00am August 18). The wind direction is predicted to be cross-onshore and the swell rating is 11.
| Time (AWST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Aug) | 15ft (4.5m) | 16s |
| Afternoon (18 Aug) | 13ft (4.0m) | 16s |
| Evening (18 Aug) | 11ft (3.5m) | 16s |
Table - waves today at Back Beach. (Swell directed towards the surf break)
Short Range ForecastSome drizzle, heaviest during Wed morning. Very mild (max 17°C on Tue afternoon, min 14°C on Wed night). Wind will be generally light. | |||||||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | |||||||||||||||||||||
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 16 | WSW 16 | 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 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 9602 | 9047 | 8903 | 8619 | 8198 | 7446 | 6444 | 5717 | 4872 | 3805 | 3515 | 3706 | 4948 | 6265 | 6667 | 6667 | 6836 | 6427 | 5953 | 5140 | 4797 | 4471 | 4214 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | glassy | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | on | cross-on | glassy | glassy | off | cross-off | cross | cross-on | cross-on | cross | cross |
High Tide | 1:10AM0.54m | 1:55AM0.55m | |||||||||||||||||||||
Low Tide | 4:20PM0.18m | 3:39PM0.15m | 3:18PM0.12m | ||||||||||||||||||||
 |  |  |  | |  | | |  | |  | | | | | | | | | | | | | |
 | 6:50 | — | — | — | — | — | — | — | 6:50 | — | — | — | — | — | — | — | 6:48 | — | — | — | — | — | — |
 | — | — | — | — | 5:53 | — | — | — | — | — | — | — | 5:54 | — | — | — | — | — | — | — | 5:54 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 15 | 16 | 17 | 17 | 16 | 16 | 16 | 16 | 15 | 16 | 17 | 17 | 17 | 16 | 16 | 14 | 14 | 16 | 17 | 17 | 17 | 16 |
Feels °C | 12 | 13 | 13 | 13 | 13 | 12 | 12 | 13 | 13 | 13 | 15 | 14 | 14 | 15 | 16 | 15 | 13 | 12 | 14 | 14 | 13 | 13 | 13 |
Swell 1 Height (m) Direction Period (s) | WSW 16 | WSW 16 | 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 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 |
| kJ | 9602 | 9047 | 8903 | 8619 | 8198 | 7446 | 6444 | 5717 | 4872 | 3805 | 3515 | 3706 | 4948 | 6265 | 6667 | 6667 | 6836 | 6427 | 5953 | 5140 | 4797 | 4471 | 4214 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 189 | 3 | 189 | 493 | 474 | 374 | 189 | 189 | 189 | 178 | 178 | 251 | 240 | 184 | 3 | 3 | 3 | 3 | 3 | 190 | 121 | 108 | 71 |
Best forecast wave conditions in Perth City Coast | |||||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||||
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