Margaret River - South Side Surf Break

Lat Long: 33.98° S 114.98° E

Margaret River - South Side Surf Forecast and Surf Report

Issued: 7 pm 17 Sep 2026 (local time)

Forecast update in  hr  min

Today's Margaret River - South Side sea temperature is
17.9°C
0.9° 

Margaret River - South Side surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Margaret River - South Side surf forecast from 17 Sep 2026:

  • Best quality surf: Saturday 19 Sep, 5AM (local time) - 21ft (6.5m), 13s period, WNW swell with cross-onshore winds.
  • Most powerful swell: Saturday 19 Sep, 8AM (local time) - 25ft (7.5m), 13s period, W swell with 18,620 kJ wave energy.
  • Next surfable swell (1★+): Saturday 19 Sep, 5AM (local time) - 21ft (6.5m), 13s period with WNW swell.

Best Forecast Surf Conditions for Margaret River - South Side this week:

The surf forecast for Margaret River - South Side over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Sep 19) at 5AM. The primary swell is predicted to be 6.5m and 13s period with a secondary swell of 2.5m and 15s. The wind is predicted to be cross-onshore as the swell arrives.

The most powerful waves expected at Margaret River - South Side in the next 16 days are 7.5m 13s and forecast to arrive on Saturday (Sep 19) at 8AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 4s period and expected on Tuesday (Sep 22) at 8AM.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Sat 19th Sep)21ft (6.5m) 13s
Best Surf 5AM (Sat 19th Sep)21ft (6.5m) 13s
Most Powerful 8AM (Sat 19th Sep)25ft (7.5m) 13s

Table - best surf conditions forecast for Margaret River - South Side over the next 16 days.


Short Range Forecast

Moderate rain (total 12mm), heaviest on Fri night. Warm (max 20°C on Fri morning, min 14°C on Fri night). Winds decreasing (near gales from the WNW on Fri night, light winds from the S by Sun afternoon).

Days 5-7 Weather Summary

Some drizzle, heaviest during Mon night. Very mild (max 16°C on Mon afternoon, min 10°C on Tue night). Wind will be generally light.

Friday
18
Saturday
19
Sunday
20
Monday
21
Tuesday
22
Wednesday
23
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
2
0
0
!
0
0
3
!
!
!
3
3
4
!
4
3
3
4
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.5
WSW
12
1.7
WSW
17
1.9
WSW
16
5
NW
10
7
W
13
5.5
W
12
3.5
WSW
13
3
SW
13
3.5
SW
16
4
SW
15
3.5
SW
15
3
SW
15
2.5
SW
14
3
SW
14
3.5
SW
14
3
SW
13
2.4
SW
13
2.2
SW
12
1.7
SW
12
Wave Graph
Metric surfscale
Energy kJ
636
1626
1975
4386
16966
8454
4064
3193
5547
6271
5025
4235
2873
3944
4124
2800
1863
1381
819
Wind (km/h)
15
N
30
NNE
35
WNW
55
NW
50
W
35
W
25
SW
15
SW
10
S
10
N
15
WNW
15
WSW
15
S
15
SSE
20
SSE
15
ESE
10
SSW
20
SSE
15
SE
Wind State
cross
cross-off
cross-on
cross-on
on
on
cross-on
cross-on
cross
cross-off
on
cross-on
cross
cross-off
cross-off
off
cross
cross-off
cross-off
High Tide
11:47PM0.65m
00:26AM0.63m
4:40AM0.60m
6:07AM0.62m
6:59AM0.64m
7:42AM0.64m
10:29PM0.40m
Low Tide
2:32PM0.12m
2:55PM0.10m
3:14PM0.10m
3:31PM0.11m
3:43PM0.13m
3:51PM0.16m
1:15AM0.38m
clear
clear
rain showers
mod rain
light rain
rain showers
light rain
part cloud
part cloud
clear
clear
part cloud
rain showers
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:16
6:15
6:13
6:11
6:09
6:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:12
6:13
6:13
6:14
6:15
6:15
6:15
 mm
1
6
3
1
1
1
Temp °C
17
20
20
15
15
17
16
15
15
13
15
16
16
14
15
13
15
15
14
Feels °C
14
15
15
5
5
10
11
12
12
10
13
13
13
11
11
9
12
10
10
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the Margaret River - South Side Surf forecast

The above surf forecast table for Margaret River - South Side provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Margaret River - South Side can be found by selecting the local surf guide option on the grey menu. Our Margaret River - South Side surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Margaret River - South Side) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Margaret River - South Side may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Margaret River - South Side is 93 km (58 miles) from the city of Bunbury. If you plan a holiday in Margaret River, look for hotels and other accommodation in Bunbury. Bunbury has rooms for a wide range of budgets as well as car hire and transport links.

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