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Twelve Mile Beach Surf Forecast
/ WA – Far South (31 breaks) / Western Australia (159 breaks) /
Surf Forecasts:
Twelve Mile Beach surfForecast / WA – Far South / Australia
48hr Weather and Surf, issued 1 pm Thursday 21 May 2026 AWSTForecast update in hr min s Forecast update imminent
Twelve Mile Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Twelve Mile Beach sea temperature is
19.0° C
(Which is normal for this time of year)How big are the waves at Twelve Mile Beach today?
The current surf forecast for Twelve Mile Beach at 7PM is: 1.3m 14s primary swell from a South-southwest direction and 0.2m 6s secondary swell from a East direction, 0.6m 4s secondary swell from a Southwest direction (forecast issued at 01:00pm May 21). The wind direction is predicted to be cross-onshore.
| Time (AWST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 May) | 4ft (1.2m) | 13s |
| Afternoon (21 May) | 4.5ft (1.3m) | 14s |
| Evening (21 May) | 4.5ft (1.3m) | 14s |
Table - waves today at Twelve Mile Beach. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 14mm), heaviest on Thu night. Warm (max 26°C on Thu afternoon, min 12°C on Sat night). Winds decreasing (fresh winds from the SSW on Thu night, calm by Sat night). | ||||||||||||||||||||||||
Thu 21 | Friday 22 | Saturday 23 | Sun 24 | |||||||||||||||||||||
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 | 2 AM | 5 AM | 8 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SSW 13 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 12 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | S 11 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | S 12 | S 11 | |
472 | 501 | 630 | 638 | 1579 | 1699 | 1564 | 491 | 923 | 964 | 1028 | 257 | 847 | 793 | 755 | 647 | 596 | 532 | 569 | 230 | 203 | 132 | 456 | 358 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | on | cross-on | cross-on | on | on | on | on | on | cross-on | on | on | on | on | on | on | on | on | on | glassy | glassy | glassy | cross-off | |
High Tide | 12:51PM0.77m | 1:01PM0.66m | 12:31PM0.56m | |||||||||||||||||||||
Low Tide | 2:28AM0.08m | 2:49AM0.14m | 2:52AM0.20m | |||||||||||||||||||||
 | |  |  | |  |  | |  |  | | |  | |  | | | | |  | | | | | |
 | — | — | — | — | — | — | 6:48 | — | — | — | — | — | — | — | 6:48 | — | — | — | — | — | — | — | 6:48 | — |
 | — | — | 5:01 | — | — | — | — | — | — | — | 5:01 | — | — | — | — | — | — | — | 5:00 | — | — | — | — | 5:00 |
— | — | — | 1 | 4 | 5 | — | — | 2 | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 24 | 26 | 19 | 18 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 15 | 14 | 14 | 14 | 15 | 15 | 14 | 14 | 13 | 13 | 12 | 12 |
17 | 21 | 15 | 13 | 10 | 8 | 9 | 9 | 8 | 7 | 8 | 9 | 10 | 8 | 9 | 9 | 11 | 11 | 11 | 11 | 12 | 12 | 11 | 11 | |
Swell 1 Height (m) Direction Period (s) | SSW 13 | SSW 14 | SSW 14 | SSW 14 | E 6 | — | SSW 13 | SSW 13 | E 7 | SSW 12 | SSW 11 | SSW 13 | — | — | — | SSW 12 | S 11 | SSW 12 | SSW 12 | S 8 | S 8 | S 8 | S 12 | S 11 |
 kJ | 472 | 501 | 630 | 638 | 1 | — | 850 | 491 | 1 | 466 | 347 | 257 | — | — | — | 647 | 596 | 532 | 569 | 116 | 129 | 132 | 456 | 358 |
Swell 2 Height (m) Direction Period (s) | — | NNW 3 | SW 11 | E 6 | — | — | — | — | — | E 7 | SW 13 | E 6 | — | — | — | S 16 | S 15 | S 15 | S 15 | SSW 12 | SSW 12 | SSW 12 | SSW 16 | SSW 16 |
| kJ | — | 3 | 254 | 3 | — | — | — | — | — | 1 | 28 | 1 | — | — | — | 5 | 18 | 17 | 17 | 230 | 203 | 119 | 26 | 26 |
Swell 3 Height (m) Direction Period (s) | — | — | ENE 6 | — | — | — | — | — | — | — | E 7 | — | — | — | — | — | — | E 7 | S 15 | S 13 | S 18 | S 12 | SSW 16 | S 20 |
| kJ | — | — | 4 | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | 1 | 17 | 112 | 6 | 71 | 26 | 8 |
Wind waves Height (m) Direction Period (s) | NNW 3 | NW 3 | WSW 3 | SW 4 | SSW 14 | SSW 14 | SSW 14 | SSW 6 | SSW 13 | SSW 12 | SSW 13 | SSW 7 | SSW 12 | SSW 12 | SSW 12 | — | — | — | — | — | — | — | — | — |
| kJ | 3 | 2 | 2 | 12 | 1579 | 1699 | 1564 | 149 | 923 | 964 | 1028 | 192 | 847 | 793 | 755 | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 20 | 0 | 137 | 149 | 439 | 439 | 439 | 439 | 439 | 439 | 439 | 440 | 153 | 385 | 273 | 153 | 153 | 358 | 243 | 260 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Far South of Western Australia | ||||||||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Live Wind Speed (km/h)
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Ocean Swells (m)- Wind Speed (km/h)
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