Surf Forecasts:
How big are the waves at Secret Harbour today (20 Aug):
- Morning surf: Morning surf (20 Aug, local time) - 10ft (3.0m), 16s period with WSW swell.
- Afternoon surf: Afternoon surf (20 Aug, local time) - 8ft (2.5m), 16s period with WSW swell.
- Evening surf: Evening surf (20 Aug, local time) - 8ft (2.4m), 16s period with WSW swell.
The current surf forecast for Secret Harbour at 3PM is: 2.5m 16s primary swell from a West-southwest direction (forecast issued at 07:00am August 20). The wind direction is predicted to be cross-onshore.
| Time (AWST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Aug) | 10ft (3.0m) | 16s |
| Afternoon (20 Aug) | 8ft (2.5m) | 16s |
| Evening (20 Aug) | 8ft (2.4m) | 16s |
Table - waves today at Secret Harbour. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 17°C on Fri afternoon, min 12°C on Sat night). Wind will be generally light. | |||||||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | |||||||||||||||||||||
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 15 | WSW 15 | WSW 15 | WSW 15 | WSW 14 | WSW 14 | WSW 15 | WSW 15 | WSW 14 | WSW 17 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 15 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 4340 | 3954 | 3529 | 2996 | 2958 | 2731 | 2758 | 2723 | 2446 | 2320 | 2076 | 2048 | 2020 | 1797 | 1877 | 1714 | 1303 | 2529 | 2068 | 1740 | 1341 | 1193 | 962 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | glassy | on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | glassy | cross-on | cross-on | cross | cross-off | cross-off | cross-off | off | glassy | cross-on | cross-on | cross | cross-on |
High Tide | 2:37AM0.79m | 3:48AM0.80m | |||||||||||||||||||||
Low Tide | 4:21PM0.34m | 4:16PM0.32m | 4:03PM0.31m | ||||||||||||||||||||
 |  |  | | | | | | | | | | | | | | |  | | | |  | | |
 | 6:48 | — | — | — | — | — | — | — | 6:48 | — | — | — | — | — | — | — | 6:47 | — | — | — | — | — | — |
 | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 14 | 16 | 16 | 16 | 16 | 15 | 14 | 14 | 13 | 16 | 17 | 17 | 17 | 16 | 16 | 15 | 15 | 16 | 16 | 16 | 16 | 15 |
Feels °C | 13 | 12 | 16 | 14 | 14 | 13 | 12 | 11 | 11 | 10 | 15 | 14 | 13 | 14 | 14 | 14 | 12 | 12 | 15 | 13 | 12 | 12 | 10 |
Swell 1 Height (m) Direction Period (s) | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 15 | WSW 15 | WSW 15 | WSW 15 | WSW 14 | WSW 14 | WSW 15 | WSW 15 | WSW 14 | WSW 17 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 15 |
| kJ | 4340 | 3954 | 3529 | 2996 | 2958 | 2731 | 2758 | 2723 | 2446 | 2320 | 2076 | 2048 | 2020 | 1797 | 1877 | 1714 | 1303 | 2529 | 2068 | 1740 | 1341 | 1193 | 962 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | W 26 | W 24 | WSW 24 | WSW 22 | WSW 20 | W 20 | WSW 19 | WSW 18 | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | 13 | 44 | 108 | 93 | 437 | 775 | 772 | 1093 | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | S 3 | — | — | — | — | — | — | SSW 3 | SW 4 | SSW 5 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | 5 | — | — | — | — | — | — | 3 | 15 | 52 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 46 | 21 | 21 | 0 | 0 | 0 | 0 | 0 | 21 | 101 | 21 | 0 | 0 | 0 | 0 | 0 | 101 | 1783 | 101 | 101 |
Best forecast wave conditions in Perth City Coast | |||||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||||
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