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Surf Forecasts:

Southside surfForecast / WA – Margaret River / Australia

information circle48hr Weather and Surf, issued 1 pm Wednesday 18 Mar 2026 AWST
Forecast 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
20.7° C
 (Which is normal for this time of year)

How big are the waves at Southside today?

The current surf forecast for Southside at 6PM is: 1.6m 12s primary swell from a Southwest direction (forecast issued at 01:00pm March 18). An open ocean swell of 0.4m 5s is not directed at the surf break. The wind direction is predicted to be cross-shore.

Time (AWST) & DateWave HeightWave Period
Morning (18 Mar)5ft (1.6m)12s
Afternoon (18 Mar)5ft (1.6m)12s
Evening (18 Mar)5.5ft (1.7m)12s

Table - waves today at Southside. (Swell directed towards the surf break)

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table
Wednesday
18
Thursday
19
Friday
20
Saturday
21
11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM
Rating
(10 max)
1
0
2
3
3
3
3
3
3
1
2
2
2
3
2
3
3
1
3
3
2
4
3
2
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.6
SW
1.6
SW
1.6
SW
1.6
SW
1.7
SW
1.7
SW
2
SSW
2.2
SW
2.5
SW
2.5
SW
2.5
SW
2.4
SW
2.3
SW
2.2
SW
2.1
SW
2.1
SW
2.3
SW
2.5
SW
2.5
SW
2.5
SW
2.5
SW
3
SSW
2.5
SW
2.3
SW
Period(s) (?)121212121212121415151414141413131314161414141313
Wave
Graph
(?)Metric surfscale
Energy kJ (?)724785772747822822115820322648285626672317214017331568156818042379343930092763311024961890
Wind
(km/h)
15
NW
15
WNW
15
SSW
15
SE
15
SE
10
ESE
20
SSE
20
SSE
25
SSE
30
S
25
SSE
30
SE
25
SE
20
SE
25
SE
25
SE
20
SSE
25
S
30
SSE
30
SSE
25
SSE
20
SE
20
SSE
25
SSE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		cross-
on		crosscross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		crosscross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		crosscross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off
High Tide
/ height (m)
10:05PM
0.59
10:30AM
0.49
10:52PM
0.50
10:36AM
0.56
11:52PM
0.40
Low Tide
/ height (m)
3:31PM
0.29
4:36AM
0.27
4:32PM
0.26
4:25AM
0.33
5:38PM
0.23
3:46AM
0.35
Wednesday
18
Thursday
19
Friday
20
Saturday
21
Sunrise-------6:20-------6:22-------6:22
Sunset--6:35-------6:32-------6:31-----
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
Rain (mm)
------------------------
Temp. °C272521212018181924242118171717172326211818171719
Feels °C (?)242220201917171822201815141514142123181515151517
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

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FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Southside surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

View detailed surf forecast for Southside at:
surf-forecast.com

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