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Southside Surf Forecast
/ WA – Margaret River (57 breaks) / Western Australia (159 breaks) /
Surf Forecasts:
Southside surfForecast / WA – Margaret River / Australia
48hr Weather and Surf, issued 1 am Tuesday 12 May 2026 AWSTForecast update in hr min s Forecast update imminent
Southside surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Southside sea temperature is
21.0° C
(Which is slightly warmer than usual)How big are the waves at Southside today?
The current surf forecast for Southside at 9AM is: 2.3m 12s primary swell from a West-southwest direction and 0.7m 16s secondary swell from a West-southwest direction, 1.0m 6s secondary swell from a North-northwest direction (forecast issued at 01:00am May 12). The wind direction is predicted to be cross-shore.
| Time (AWST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 May) | 7.5ft (2.3m) | 12s |
| Afternoon (12 May) | 8ft (2.5m) | 13s |
| Evening (12 May) | 11ft (3.5m) | 14s |
Table - waves today at Southside. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 6mm), mostly falling on Wed afternoon. Warm (max 21°C on Tue morning, min 15°C on Wed night). Mainly fresh winds. | ||||||||||||||||||||||||
Tuesday 12 | Wednesday 13 | Thursday 14 | ||||||||||||||||||||||
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 | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
WSW 12 | WSW 12 | WSW 12 | WSW 13 | WSW 13 | WSW 14 | WSW 14 | WSW 15 | WSW 15 | WSW 15 | WSW 15 | WSW 15 | WSW 15 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 14 | |
1137 | 1461 | 1510 | 1661 | 1697 | 3353 | 4920 | 6949 | 7838 | 8281 | 9114 | 8162 | 7495 | 7326 | 6788 | 6095 | 5726 | 5089 | 4440 | 3971 | 3598 | 3416 | 3621 | 5830 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross | cross | cross | cross-on | cross | cross | cross | cross | cross | cross-on | cross-on | on | on | cross | cross | cross-on | cross-on | cross-on | cross-on | on | cross-on | on | on | |
High Tide | 8:19AM0.51m | 7:16PM0.45m | 8:10AM0.57m | 8:52PM0.41m | 8:16AM0.64m | |||||||||||||||||||
Low Tide | 1:14AM0.23m | 2:31PM0.37m | 1:20AM0.28m | 3:17PM0.26m | 1:16AM0.34m | 4:08PM0.16m | ||||||||||||||||||
 |  |  |  | | | | | | |  | |  |  |  |  | | | | | | |  | | |
 | — | 7:01 | — | — | — | — | — | — | — | 7:03 | — | — | — | — | — | — | — | 7:03 | — | — | — | — | — | — |
 | — | — | — | — | — | 5:29 | — | — | — | — | — | — | — | 5:29 | — | — | — | — | — | — | — | 5:28 | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | — | — | — | — | — | — | — | 1 | — | |
Temp °C | 19 | 19 | 20 | 21 | 21 | 21 | 20 | 20 | 19 | 19 | 20 | 20 | 20 | 18 | 16 | 16 | 15 | 16 | 16 | 16 | 16 | 16 | 16 | 16 |
16 | 17 | 17 | 17 | 17 | 19 | 18 | 18 | 17 | 16 | 16 | 15 | 16 | 14 | 12 | 13 | 11 | 12 | 12 | 11 | 11 | 12 | 12 | 11 | |
Swell 1 Height (m) Direction Period (s) | WSW 12 | WSW 12 | WSW 12 | WSW 13 | WSW 13 | WSW 14 | WSW 14 | WSW 15 | WSW 15 | WSW 15 | WSW 15 | WSW 15 | WSW 15 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 14 |
 kJ | 1137 | 1461 | 1510 | 1661 | 1697 | 3353 | 4920 | 6949 | 7838 | 8281 | 9114 | 8162 | 7495 | 7326 | 6788 | 6095 | 5726 | 5089 | 4440 | 3971 | 3598 | 3416 | 3621 | 5830 |
Swell 2 Height (m) Direction Period (s) | SSW 16 | WSW 18 | WSW 17 | WSW 16 | WSW 16 | SSW 13 | SSW 13 | — | SSW 12 | — | — | — | — | SW 15 | SW 14 | SW 14 | SW 13 | SW 14 | WSW 13 | SSW 13 | SSW 13 | — | — | — |
| kJ | 25 | 32 | 159 | 547 | 883 | 70 | 67 | — | 29 | — | — | — | — | 1784 | 1505 | 2686 | 1387 | 2756 | 1930 | 1110 | 1045 | — | — | — |
Swell 3 Height (m) Direction Period (s) | W 18 | WSW 18 | WSW 17 | SSW 14 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 6 | 103 | 162 | 40 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 5 | N 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 135 | 92 | 72 | 65 | 58 | 27 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 134 | 41 | 41 | 193 | 41 | 41 | 41 | 94 | 94 | 95 | 190 | 193 | 244 | 356 | 46 | 18 | 33 | 14 | 14 | 14 | 14 | 14 | 50 | 98 |
Best forecast wave conditions in Margaret River | ||||||||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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