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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 Wednesday 20 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
18.8° 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 8PM is: 1.0m 14s primary swell from a South-southwest direction (forecast issued at 01:00pm May 20). An open ocean swell of 0.2m 3s is not directed at the surf break. The wind direction is predicted to be offshore and the swell rating is 2.
| Time (AWST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 May) | 3.5ft (1.1m) | 14s |
| Afternoon (20 May) | 3.5ft (1.1m) | 14s |
| Evening (20 May) | 3.5ft (1.0m) | 13s |
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 10mm), heaviest on Thu night. Warm (max 25°C on Wed afternoon, min 14°C on Fri night). Winds increasing (light winds from the NW on Wed afternoon, fresh winds from the SSW by Fri morning). | ||||||||||||||||||||||||
Wed 20 | Thursday 21 | Friday 22 | Sat 23 | |||||||||||||||||||||
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 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 12 | SSW 13 | SSW 11 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | |
307 | 501 | 494 | 384 | 362 | 346 | 351 | 434 | 472 | 501 | 630 | 1210 | 1247 | 1556 | 537 | 1026 | 1134 | 1003 | 253 | 704 | 718 | 706 | 579 | 541 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | off | off | off | off | off | cross-off | cross | on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | on | on | on | on | |
High Tide | 12:26PM0.87m | 12:51PM0.77m | 1:01PM0.66m | |||||||||||||||||||||
Low Tide | 1:51AM0.06m | 2:28AM0.08m | 2:49AM0.14m | |||||||||||||||||||||
 | |  |  | |  | |  | | | |  |  |  | |  |  | | | | | | | | |
 | — | — | — | — | — | — | 6:47 | — | — | — | — | — | — | — | 6:48 | — | — | — | — | — | — | — | 6:48 | — |
 | — | — | 5:02 | — | — | — | — | — | — | — | 5:01 | — | — | — | — | — | — | — | 5:01 | — | — | — | — | 5:00 |
— | — | — | — | — | — | — | — | — | — | — | — | 4 | 2 | — | 2 | 2 | — | — | — | — | — | — | — | |
Temp °C | 22 | 25 | 25 | 24 | 21 | 20 | 19 | 20 | 23 | 25 | 19 | 18 | 15 | 16 | 15 | 15 | 15 | 16 | 15 | 15 | 15 | 15 | 14 | 14 |
15 | 20 | 21 | 20 | 17 | 16 | 14 | 14 | 17 | 21 | 16 | 13 | 10 | 9 | 9 | 9 | 7 | 9 | 8 | 9 | 9 | 11 | 10 | 10 | |
Swell 1 Height (m) Direction Period (s) | SSW 13 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 14 | SSW 14 | SSW 14 | — | SSW 14 | SSW 14 | — | — | SSW 12 | SSW 13 | SW 13 | SSW 12 | SSW 12 | SSW 12 | SSW 12 |
 kJ | 307 | 501 | 494 | 384 | 362 | 346 | 351 | 434 | 472 | 501 | 630 | 1210 | — | 1178 | 537 | — | — | 466 | 253 | 28 | 718 | 706 | 579 | 541 |
Swell 2 Height (m) Direction Period (s) | SSW 15 | — | — | — | — | SSW 16 | — | — | — | NNW 3 | SW 11 | — | — | — | — | — | — | E 7 | SW 13 | — | — | — | — | S 15 |
| kJ | 193 | — | — | — | — | 51 | — | — | — | 4 | 254 | — | — | — | — | — | — | 1 | 28 | — | — | — | — | 5 |
Swell 3 Height (m) Direction Period (s) | E 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | N 3 | NNW 3 | NW 3 | NNW 3 | — | N 2 | NNW 3 | N 3 | NNW 3 | NW 3 | SW 2 | SSW 14 | SSW 14 | SSW 14 | SSW 6 | SSW 13 | SSW 13 | SSW 12 | SSW 7 | SSW 11 | — | — | — | — |
| kJ | 6 | 4 | 2 | 1 | — | 1 | 3 | 2 | 6 | 3 | 1 | 886 | 1247 | 1556 | 127 | 1026 | 1134 | 1003 | 212 | 704 | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 153 | 97 | 0 | 0 | 0 | 0 | 0 | 0 | 97 | 20 | 137 | 260 | 261 | 153 | 439 | 439 | 439 | 439 | 439 | 153 | 97 | 243 | 243 | 153 |
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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