Margaret River Mouth Surf Break

Lat Long: 33.97° S 114.98° E

Margaret River Mouth Surf Forecast and Surf Report

Issued: 1 pm 17 Sep 2026 (local time)

Forecast update in  hr  min

Today's Margaret River Mouth sea temperature is
17.9°C
0.8° 

Margaret River Mouth surf forecast from 17 Sep 2026:

  • Best quality surf: Sunday 20 Sep, 11PM (local time) - 7ft (2.1m), 16s period, SW swell with glassy winds.
  • Most powerful swell: Saturday 19 Sep, 11AM (local time) - 10ft (3.0m), 12s period, W swell with 2,988 kJ wave energy.
  • Next surfable swell (1★+): Sunday 20 Sep, 8AM (local time) - 5ft (1.6m), 12s period with SW swell.

Best Forecast Surf Conditions for Margaret River Mouth this week:

The surf forecast for Margaret River Mouth over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Sep 20) at 8AM. The primary swell is predicted to be 1.6m and 12s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Margaret River Mouth in the next 16 days are 3.0m 12s and forecast to arrive on Saturday (Sep 19) at 11AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 10s period and expected on Saturday (Sep 19) at 2AM.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Sun 20th Sep)5ft (1.6m) 12s
Best Surf11PM (Sun 20th Sep)7ft (2.1m) 16s
Most Powerful11AM (Sat 19th Sep)10ft (3.0m) 12s

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


Short Range Forecast

Moderate rain (total 12mm), heaviest on Sat morning. Warm (max 21°C on Fri afternoon, min 14°C on Fri night). Winds decreasing (near gales from the WNW on Fri night, light winds from the S by Sun morning).

Days 5-7 Weather Summary

Some drizzle, heaviest during Tue morning. Very mild (max 17°C on Tue afternoon, min 10°C on Tue night). Wind will be generally light.

Thu
17
Friday
18
Saturday
19
Sunday
20
Monday
21
Tuesday
22
Wednesday
23
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
1
2
3
1
2
2
1
1
2
1
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.7
SW
13
0.7
SW
12
0.8
WSW
17
0.9
WSW
16
1.1
WSW
16
3
W
12
2.5
WSW
12
1.8
WSW
12
1.6
SW
13
1.8
SW
16
2.1
SW
15
1.8
SW
15
1.6
SW
15
1.3
SW
14
1.5
SW
15
1.6
SW
14
1.4
SW
13
1.2
SW
13
1.1
SW
12
1
SW
12
Wave Graph
Metric surfscale
Energy kJ
178
152
381
475
596
2988
1929
904
809
1552
1932
1417
1062
676
924
1018
683
459
367
281
Wind (km/h)
25
NNW
20
N
30
NNE
35
WNW
55
NNW
50
W
35
W
25
SW
10
S
10
S
5
NNW
15
WNW
10
WSW
15
SSE
20
SSE
25
SSE
15
E
10
SW
20
S
10
SE
Wind State
cross-on
cross
cross-off
cross-on
cross-on
on
on
cross-on
cross
cross
glassy
on
cross-on
cross-off
cross-off
cross-off
off
cross-on
cross
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
2:09PM0.14m
2:32PM0.12m
2:55PM0.10m
3:14PM0.10m
3:31PM0.11m
3:43PM0.13m
3:51PM0.16m
1:15AM0.38m
clear
clear
part cloud
part cloud
mod rain
light rain
light rain
rain showers
part cloud
clear
clear
part cloud
part cloud
part cloud
light rain
clear
part cloud
clear
clear
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
6
4
1
1
1
Temp °C
19
18
20
21
15
16
17
16
16
16
14
16
16
16
15
17
13
15
15
14
Feels °C
17
15
15
16
8
7
11
10
13
12
13
13
13
13
12
13
9
12
11
11
  • Map Icons:
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  • 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 Mouth Surf forecast

The above surf forecast table for Margaret River Mouth 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 Mouth can be found by selecting the local surf guide option on the grey menu. Our Margaret River Mouth 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 Mouth) 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 Mouth 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 Mouth is 92 km (57 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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