Surf Forecasts:
How big are the waves at Twelve Mile Beach today (18 Aug):
- Morning surf: Morning surf (18 Aug, local time) - 4.5ft (1.3m), 16s period with SSW swell.
- Afternoon surf: Afternoon surf (18 Aug, local time) - 3.5ft (1.1m), 16s period with SSW swell.
- Evening surf: Evening surf (18 Aug, local time) - 3.5ft (1.1m), 16s period with SSW swell.
The current surf forecast for Twelve Mile Beach at 8PM is: 1.1m 16s primary swell from a South-southwest direction and 1.1m 7s secondary swell from a South-southwest direction (forecast issued at 01:00pm August 18). The wind direction is predicted to be cross-offshore and the swell rating is 3.
| Time (AWST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Aug) | 4.5ft (1.3m) | 16s |
| Afternoon (18 Aug) | 3.5ft (1.1m) | 16s |
| Evening (18 Aug) | 3.5ft (1.1m) | 16s |
Table - waves today at Twelve Mile Beach. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 18°C on Wed afternoon, min 13°C on Tue night). Winds decreasing (fresh winds from the NW on Wed morning, calm by Thu night). | |||||||||||||||||||||
Tue 18 | Wednesday 19 | Thursday 20 | |||||||||||||||||||
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) | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 16 | SW 16 | SW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 798 | 620 | 612 | 604 | 596 | 566 | 794 | 661 | 596 | 1115 | 1611 | 1834 | 1811 | 1811 | 1788 | 1606 | 1487 | 1451 | 1451 | 1862 | 2058 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-on | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-on | cross-on | cross-on | cross-on | cross-off | cross-off | cross | cross | cross-on | on | on | glassy |
High Tide | 11:25AM0.46m | 1:11AM0.65m | 10:52AM0.46m | 1:37AM0.64m | |||||||||||||||||
Low Tide | 5:50PM0.14m | 7:41AM0.42m | 5:44PM0.11m | 5:40PM0.09m | |||||||||||||||||
 | |  |  |  | |  | | |  | | | | | | | | | | | | |
 | — | — | — | — | — | — | 6:33 | — | — | — | — | — | — | — | 6:33 | — | — | — | — | — | — |
 | — | — | 5:30 | — | — | — | — | — | — | — | 5:30 | — | — | — | — | — | — | — | 5:30 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 15 | 16 | 15 | 13 | 14 | 13 | 13 | 17 | 18 | 15 | 15 | 14 | 14 | 14 | 13 | 14 | 15 | 15 | 16 | 15 |
Feels °C | 8 | 9 | 13 | 11 | 9 | 9 | 7 | 6 | 11 | 12 | 11 | 12 | 13 | 13 | 13 | 9 | 10 | 11 | 11 | 14 | 15 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 8 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 16 | SW 16 | SW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 |
| kJ | 798 | 173 | 612 | 604 | 596 | 566 | 794 | 661 | 596 | 1115 | 1611 | 1834 | 1811 | 1811 | 1788 | 1606 | 1487 | 1451 | 1451 | 1862 | 2058 |
Swell 2 Height (m) Direction Period (s) | E 8 | SSW 16 | SSW 7 | SSW 7 | SSW 7 | SSW 8 | E 8 | E 7 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 4 | 620 | 121 | 125 | 104 | 99 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | E 7 | E 7 | E 7 | E 7 | E 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 4 | 4 | 4 | 4 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 8 | — | — | — | — | NW 3 | NW 3 | NW 3 | W 4 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 298 | — | — | — | — | 2 | 3 | 8 | 18 | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 153 | 97 | 97 | 0 | 20 | 0 | 20 | 137 | 489 | 484 | 153 | 97 | 34 | 0 | 0 | 97 | 137 | 97 | 243 | 97 | 0 |
Best forecast wave conditions in Far South of Western Australia | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
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