Surf Forecasts:
How big are the waves at Twelve Mile Beach today (20 Aug):
- Afternoon surf: Afternoon surf (20 Aug, local time) - 5.5ft (1.7m), 16s period with SSW swell.
- Evening surf: Evening surf (20 Aug, local time) - 6ft (1.9m), 16s period with SSW swell.
The current surf forecast for Twelve Mile Beach at 11PM is: 2.0m 16s primary swell from a South-southwest direction (forecast issued at 07:00pm August 20). The wind direction is predicted to be glassy and the swell rating is 4.
| Time (AWST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Aug) | - | - |
| Afternoon (20 Aug) | 5.5ft (1.7m) | 16s |
| Evening (20 Aug) | 6ft (1.9m) | 16s |
Table - waves today at Twelve Mile Beach. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 3mm), mostly falling on Sat night. Warm (max 24°C on Sat afternoon, min 13°C on Fri night). Winds increasing (calm on Fri morning, fresh winds from the SSW by Sun afternoon). | |||||||||||||||||||
Thu 20 | Friday 21 | Saturday 22 | |||||||||||||||||
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) | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 19 | SSW 18 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 |
Wave Graph  | |||||||||||||||||||
 kJ | 1451 | 1626 | 2033 | 1982 | 1908 | 1721 | 1642 | 1537 | 1496 | 1475 | 1275 | 1145 | 1044 | 964 | 1900 | 1553 | 1375 | 1199 | 991 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | glassy | cross-off | cross-off | off | glassy | cross-on | cross | cross | cross-off | cross-off | cross-off | cross-off | off | off | cross-off | off | cross |
High Tide | 2:11AM0.61m | 8:17AM0.62m | |||||||||||||||||
Low Tide | 5:40PM0.09m | 5:35PM0.08m | 5:28PM0.08m | ||||||||||||||||
 |  | | | | | | | | | | | | | | |  |  |  | |
 | — | — | — | — | 6:31 | — | — | — | — | — | — | — | 6:30 | — | — | — | — | — | — |
 | 5:30 | — | — | — | — | — | — | — | 5:31 | — | — | — | — | — | — | — | 5:32 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 16 | 15 | 14 | 14 | 14 | 15 | 16 | 15 | 15 | 14 | 13 | 13 | 14 | 21 | 24 | 23 | 18 | 16 |
Feels °C | 12 | 14 | 14 | 12 | 12 | 12 | 14 | 12 | 11 | 12 | 11 | 10 | 10 | 10 | 15 | 20 | 20 | 14 | 12 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 |
| kJ | 1451 | 1626 | 2033 | 1982 | 1908 | 1721 | 1642 | 1537 | 1496 | 1475 | 1275 | 1145 | 822 | 778 | 1900 | 1553 | 1375 | 1199 | 991 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | SSW 24 | SSW 24 | SSW 22 | SSW 21 | SSW 20 | SSW 19 | SSW 18 | ENE 4 | ENE 4 | — | — | E 4 |
| kJ | — | — | — | — | — | — | — | 55 | 54 | 181 | 487 | 596 | 1044 | 964 | 8 | 6 | — | — | 5 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | ENE 3 | ENE 4 | ENE 4 | ENE 4 | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | 3 | 8 | 7 | 9 | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 153 | 97 | 0 | 0 | 0 | 0 | 0 | 257 | 260 | 260 | 20 | 0 | 0 | 34 | 0 | 0 | 0 | 0 | 97 |
Best forecast wave conditions in Far South of Western Australia | |||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||
Header Global | |||||||||||||||||||
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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