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Big Rock Surf Forecast
/ WA – Margaret River (57 breaks) / Western Australia (159 breaks) /
Surf Forecasts:
Big Rock surfForecast / WA – Margaret River / Australia
48hr Weather and Surf, issued 7 am Wednesday 13 May 2026 AWSTForecast update in hr min s Forecast update imminent
Big Rock surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Big Rock sea temperature is
21.0° C
(Which is slightly warmer than usual)How big are the waves at Big Rock today?
The current surf forecast for Big Rock at 3PM is: 4.0m 15s primary swell from a West-southwest direction (forecast issued at 07:00am May 13). The wind direction is predicted to be onshore.
| Time (AWST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 May) | 13ft (4.0m) | 15s |
| Afternoon (13 May) | 13ft (4.0m) | 15s |
| Evening (13 May) | 13ft (4.0m) | 14s |
Table - waves today at Big Rock. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 9mm), mostly falling on Wed night. Warm (max 20°C on Wed morning, min 15°C on Thu morning). Mainly fresh winds. | ||||||||||||||||||||||||
Wednesday 13 | Thursday 14 | Friday 15 | Sat 16 | |||||||||||||||||||||
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 | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
WSW 15 | WSW 15 | WSW 15 | WSW 15 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | SW 14 | SW 14 | SW 13 | SW 14 | SW 14 | SW 14 | SW 15 | SW 15 | SW 14 | SW 14 | |
7592 | 7901 | 7244 | 6957 | 6547 | 6391 | 5965 | 5318 | 4924 | 4336 | 3949 | 3553 | 3499 | 3672 | 5715 | 6547 | 6450 | 6307 | 6165 | 7227 | 7161 | 6340 | 5729 | 4950 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross-on | cross-on | cross-on | on | cross | cross-on | cross-on | on | on | on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | |
High Tide | 7:59AM0.85m | 9:43PM0.69m | 8:06AM0.92m | 8:23AM0.99m | ||||||||||||||||||||
Low Tide | 3:21PM0.50m | 1:13AM0.65m | 4:04PM0.40m | 4:53PM0.34m | ||||||||||||||||||||
 |  |  |  | |  |  | | | | | | |  |  | | | |  | | | | | | |
 | 7:03 | — | — | — | — | — | — | — | 7:03 | — | — | — | — | — | — | — | 7:03 | — | — | — | — | — | — | 7:05 |
 | — | — | — | — | 5:29 | — | — | — | — | — | — | — | 5:28 | — | — | — | — | — | — | — | 5:27 | — | — | 5:27 |
— | — | — | 1 | 1 | 2 | — | — | — | — | — | — | — | — | 1 | 2 | — | — | 1 | — | — | — | 1 | — | |
Temp °C | 20 | 20 | 20 | 20 | 19 | 17 | 17 | 16 | 16 | 16 | 15 | 16 | 17 | 18 | 16 | 17 | 17 | 16 | 15 | 16 | 16 | 16 | 16 | 16 |
17 | 16 | 15 | 15 | 14 | 14 | 14 | 13 | 12 | 10 | 9 | 10 | 11 | 12 | 10 | 11 | 10 | 10 | 9 | 10 | 11 | 12 | 12 | 12 | |
Swell 1 Height (m) Direction Period (s) | WSW 15 | WSW 15 | WSW 15 | WSW 15 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | SW 14 | — | — | SW 14 | SW 14 | SW 14 | SW 15 | SW 15 | SW 14 | SW 14 |
 kJ | 7592 | 7901 | 7244 | 6957 | 6547 | 6391 | 5965 | 5318 | 4924 | 4336 | 3949 | 3553 | 3499 | 3672 | 5715 | — | — | 6307 | 6165 | 7227 | 7161 | 6340 | 5729 | 4950 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SSW 18 | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 666 | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 14 | SW 13 | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 6547 | 6450 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 86 | 212 | 202 | 251 | 359 | 20 | 2 | 2 | 38 | 89 | 359 | 559 | 251 | 251 | 252 | 359 | 359 | 89 | 88 | 2 | 2 | 2 | 2 | 38 |
Best forecast wave conditions in Margaret River | ||||||||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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