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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 pm Wednesday 20 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 7PM is: 2.4m 13s primary swell from a West-southwest direction and 0.5m 16s secondary swell from a West-southwest direction (forecast issued at 01:00pm May 20). The wind direction is predicted to be cross-onshore.
| Time (AWST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 May) | 7ft (2.2m) | 14s |
| Afternoon (20 May) | 7ft (2.2m) | 14s |
| Evening (20 May) | 8ft (2.5m) | 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 Thu morning. Warm (max 20°C on Wed afternoon, min 10°C on Sat morning). Winds decreasing (fresh winds from the SSW on Thu night, calm by Sat 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 |    |    |    |    | ||||||||||||||||||||
WSW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 14 | WSW 14 | WSW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | |
1941 | 1831 | 1778 | 2003 | 2466 | 2826 | 3095 | 3468 | 3653 | 3398 | 3133 | 2802 | 2456 | 2399 | 2270 | 2114 | 2082 | 2049 | 1891 | 1605 | 1578 | 1488 | 1336 | 1255 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross | cross | cross-off | cross-off | cross | cross-off | cross-off | off | off | off | cross-off | |
High Tide | 11:10AM0.81m | 11:35AM0.73m | 11:24AM0.64m | |||||||||||||||||||||
Low Tide | 11:22PM-0.01m | 00:18AM0.04m | 1:00AM0.12m | |||||||||||||||||||||
 | |  |  | | | |  |  |  | |  | |  | | | | | | | | | | | |
 | — | — | — | — | — | — | 7:09 | — | — | — | — | — | — | — | 7:09 | — | — | — | — | — | — | — | 7:09 | — |
 | — | — | 5:23 | — | — | — | — | — | — | — | 5:22 | — | — | — | — | — | — | — | 5:22 | — | — | — | — | 5:22 |
— | — | — | — | — | — | — | 1 | 4 | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 20 | 20 | 20 | 19 | 18 | 19 | 19 | 17 | 16 | 16 | 17 | 17 | 16 | 16 | 16 | 15 | 16 | 17 | 15 | 14 | 12 | 12 | 11 | 10 |
18 | 18 | 20 | 19 | 17 | 18 | 17 | 14 | 12 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 11 | 12 | 11 | 11 | 9 | 9 | 8 | 7 | |
Swell 1 Height (m) Direction Period (s) | WSW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 14 | WSW 14 | WSW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | — | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 |
 kJ | 1941 | 1831 | 1778 | 2003 | 2466 | 2826 | 3095 | 3468 | 3653 | 3398 | 3133 | 2802 | 2456 | — | 2270 | 2114 | 2082 | 2049 | 1891 | 1605 | 1578 | 1488 | 1336 | 1255 |
Swell 2 Height (m) Direction Period (s) | S 10 | S 10 | WSW 16 | WSW 16 | S 9 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 18 |
| kJ | 7 | 2 | 208 | 147 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 13 |
Swell 3 Height (m) Direction Period (s) | — | S 10 | — | S 9 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 7 | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | S 5 | — | — | — | — | — | SW 13 | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 51 | — | — | — | — | — | 2399 | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 193 | 14 | 14 | 19 | 19 | 14 | 14 | 14 | 244 | 409 | 98 | 46 | 46 | 98 | 72 | 14 | 33 | 33 | 14 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Margaret River | ||||||||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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