Augusta Rivermouth surfForecast / WA – Margaret River / Australia

information circle48hr Weather and Surf, issued 1 pm Monday 18 May 2026 AWST
Forecast update in hr  min  s Forecast update imminent
Augusta Rivermouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Augusta Rivermouth sea temperature is
20.7° C
(Which is slightly warmer than usual)

How big are the waves at Augusta Rivermouth today?

The current surf forecast for Augusta Rivermouth at 5PM is: 2.1m 11s primary swell from a Southwest direction and 1.2m 17s secondary swell from a Southwest direction (forecast issued at 01:00pm May 18). The wind direction is predicted to be cross-onshore.

Time (AWST) & DateWave HeightWave Period
Morning (18 May)7ft (2.2m)11s
Afternoon (18 May)7ft (2.2m)11s
Evening (18 May)5ft (1.5m)17s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Some drizzle, heaviest during Thu morning. Warm (max 20°C on Wed morning, min 14°C on Mon night). Wind will be generally light.

Mon
18
Tuesday
19
Wednesday
20
Thu
21
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
Rating
(10 max)
3
3
3
3
4
4
4
4
4
4
4
4
4
4
4
4
3
4
4
4
4
4
3
2
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
2.2
SW
11
2.2
SW
11
2.1
SW
11
1.4
SW
17
1.5
SW
16
1.6
SW
16
1.8
SW
16
1.8
SW
16
2.1
SW
16
2.1
SW
15
2.5
SW
14
2.5
SW
14
2.4
SW
14
2.5
SW
14
2.3
SW
14
2.3
SW
14
2.3
SW
14
2
SW
13
2.1
SW
13
2.5
SW
14
2.5
SW
14
2.5
SW
14
2.5
SW
14
2.5
SW
14
Wave Graph
Metric surfscale
Energy kJ
1148
1148
1087
1145
1165
1330
1552
1532
1983
1808
2544
2544
2391
2492
2216
2090
2032
1306
1498
2392
2357
2606
2643
2643
Wind (km/h)
10
SSW
10
SSW
10
SSW
5
SSW
0
ESE
5
NE
10
NE
10
NE
5
N
10
W
10
NW
10
N
10
N
15
NNW
15
NNW
15
NW
15
WNW
15
WNW
10
WNW
5
WNW
5
NW
5
NW
5
SW
15
SSW
cross-on
cross-on
cross-on
cross-on
glassy
cross-off
cross-off
cross-off
glassy
cross-off
cross-off
cross-off
off
off
off
off
cross-off
cross-off
cross-off
cross-off
off
glassy
cross
cross-on
High Tide
10:20AM1.05m
10:58AM1.05m
11:38AM1.00m
Low Tide
8:05PM0.30m
9:52PM0.32m
11:43PM0.34m
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
cloud
cloud
part cloud
clear
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:07
7:07
7:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:23
5:22
5:22
5:22
Temp °C
17
18
17
17
16
15
14
14
16
18
18
17
16
17
18
18
20
20
20
19
18
17
17
17
16
16
16
16
16
14
13
13
15
17
17
16
15
15
16
16
18
18
19
19
18
18
17
16
Swell 1
Height (m)
Direction
Period (s)
2.2
SW
11
2.2
SW
11
2.1
SW
11
2.1
SW
11
2.1
SW
11
1.9
SW
11
1.8
SW
11
1.8
SW
11
2.1
SW
16
2.1
SW
15
2.5
SW
14
2.5
SW
14
2.4
SW
14
2.5
SW
14
2.3
SW
14
2.3
SW
14
2.3
SW
14
2
SW
13
2.1
SW
13
2.5
SW
14
2.5
SW
14
2.5
SW
14
2.5
SW
14
2.5
SW
14
Energy kJ
1148
1148
1087
1106
1045
908
821
756
1983
1808
2544
2544
2391
2492
2216
2090
2032
1306
1498
2392
2357
2606
2643
2643
Swell 2
Height (m)
Direction
Period (s)
1.1
SW
18
1.1
SW
18
1.2
SW
17
1.4
SW
17
1.5
SW
16
1.6
SW
16
1.8
SW
16
1.8
SW
16
1.4
SW
10
1.4
SW
10
0.4
S
11
0.3
S
10
0.3
S
10
0.2
S
10
0.1
S
10
0.2
S
10
0.2
S
10
1
SW
15
1.1
SW
16
0.1
S
9
0.1
S
9
Energy kJ
694
795
861
1145
1165
1330
1552
1532
404
396
35
18
18
8
2
7
7
465
635
2
2
Swell 3
Height (m)
Direction
Period (s)
0.3
S
14
0.4
S
13
0.3
S
13
0.4
S
12
0.4
S
12
0.3
S
12
0.4
S
12
0.3
S
11
0.4
S
11
0.1
S
9
Energy kJ
34
56
31
48
46
25
44
22
37
2
Wind waves
Height (m)
Direction
Period (s)
0.8
NW
4
0.9
WNW
5
Energy kJ
18
37
Nearest Offshore or Glassy
Rating
(10 max)
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
Distance (km)
24
24
24
24
24
24
0
0
0
0
0
0
0
0
0
0
0
0
55
0
0
0
0
0
Best forecast wave conditions in Margaret River
Rating
(10 max)
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
Best forecast wave conditions in Australia
Rating
(10 max)
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
Header Global
Rating
(10 max)
4
4
4
7
5
4
5
5
5
4
4
4
4
4
4
4
4
4
5
4
4
5
5
5
  • 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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