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 2AM is: 1.3m 17s primary swell from a South-southwest direction and 0.2m 7s secondary swell from a East direction, 1.7m 7s secondary swell from a West-southwest direction (forecast issued at 07:00pm August 17). The wind direction is predicted to be cross-shore.
| 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 ForecastLight rain (total 5mm), mostly falling on Mon night. Very mild (max 18°C on Wed afternoon, min 11°C on Mon night). Winds decreasing (strong winds from the WNW on Mon night, calm by Wed night). | |||||||||||||||||||
Mon 17 | Tuesday 18 | Wednesday 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) | SSW 18 | SSW 18 | SSW 18 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 16 | SW 16 | SSW 16 | SSW 16 | SSW 16 |
Wave Graph  | |||||||||||||||||||
 kJ | 1020 | 907 | 943 | 1069 | 1044 | 838 | 798 | 620 | 612 | 604 | 596 | 566 | 794 | 480 | 749 | 1031 | 1517 | 1811 | 1811 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-off | cross | cross | cross | cross-on | cross | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | cross-on | cross-on | glassy |
High Tide | 00:49AM0.64m | 11:25AM0.46m | 1:11AM0.65m | 10:52AM0.46m | |||||||||||||||
Low Tide | 6:01PM0.17m | 7:09AM0.36m | 5:50PM0.14m | 7:41AM0.42m | 5:44PM0.11m | ||||||||||||||
 |  |  | | |  |  |  | | |  |  | | | | | | | | |
 | — | — | — | — | 6:35 | — | — | — | — | — | — | — | 6:33 | — | — | — | — | — | — |
 | 5:29 | — | — | — | — | — | — | — | 5:30 | — | — | — | — | — | — | — | 5:30 | — | — |
mm | — | 4 | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 14 | 12 | 11 | 11 | 12 | 14 | 15 | 15 | 15 | 15 | 14 | 13 | 13 | 16 | 18 | 16 | 15 | 14 |
Feels °C | 15 | 6 | 3 | 2 | 3 | 6 | 9 | 10 | 12 | 10 | 10 | 9 | 8 | 7 | 9 | 14 | 12 | 13 | 13 |
Swell 1 Height (m) Direction Period (s) | SSW 18 | SSW 18 | SSW 18 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 7 | SSW 7 | SSW 8 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 16 | SW 16 | SSW 16 | SSW 16 | SSW 16 |
| kJ | 1020 | 907 | 943 | 1069 | 1044 | 838 | 798 | 183 | 157 | 138 | 596 | 566 | 794 | 480 | 749 | 1031 | 1517 | 1811 | 1811 |
Swell 2 Height (m) Direction Period (s) | ESE 6 | E 6 | ESE 6 | E 7 | ESE 8 | SE 8 | E 8 | SSW 16 | SSW 16 | SSW 16 | SSW 8 | SSW 8 | E 8 | SSW 8 | — | — | S 7 | — | — |
| kJ | 3 | 3 | 4 | 4 | 6 | 2 | 5 | 620 | 612 | 604 | 142 | 120 | 1 | 72 | — | — | 8 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | E 7 | E 7 | E 7 | E 7 | E 7 | — | — | E 7 | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 4 | 4 | 4 | 4 | 4 | — | — | 1 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NW 5 | W 4 | WSW 6 | WSW 7 | SW 8 | SW 8 | SW 8 | SW 8 | — | SW 8 | WSW 8 | NW 3 | NW 3 | NW 3 | W 4 | — | — | — | — |
| kJ | 47 | 58 | 154 | 269 | 418 | 435 | 276 | 403 | — | 182 | 158 | 4 | 3 | 5 | 13 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 261 | 1197 | 1197 | 812 | 489 | 153 | 153 | 358 | 97 | 20 | 20 | 97 | 20 | 20 | 153 | 257 | 243 | 97 | 0 |
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)
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