Bruny Island - Mabel Bay surfForecast / TAS – East Coast / Australia

information circle48hr Weather and Surf, issued 3 pm Wednesday 20 May 2026 AEST
Forecast update in hr  min  s Forecast update imminent
Bruny Island - Mabel Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Bruny Island - Mabel Bay sea temperature is
14.2° C
(Which is 1.2°C warmer than normal for this time of year)

How big are the waves at Bruny Island - Mabel Bay today?

The current surf forecast for Bruny Island - Mabel Bay at 8PM is: 0.9m 16s primary swell from a South-southwest direction and 2.0m 7s secondary swell from a Southwest direction (forecast issued at 03:00pm May 20). An open ocean swell of 0.7m 12s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (AEST) & DateWave HeightWave Period
Morning (20 May)--
Afternoon (20 May)3ft (0.9m)16s
Evening (20 May)6ft (1.9m)10s

Table - waves today at Bruny Island - Mabel Bay. (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Very mild (max 15°C on Thu afternoon, min 9°C on Wed night). Winds decreasing (fresh winds from the WSW on Wed afternoon, calm by Fri afternoon).

Wed
20
Thursday
21
Friday
22
Sat
23
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
Rating
(10 max)
2
0
1
3
4
!
4
4
4
4
4
4
3
4
4
4
3
4
5
5
5
4
4
3
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)
2.3
SW
16
0.9
SSW
16
0.9
SSW
16
1.9
SW
10
1.9
SW
10
3.5
SW
14
2.5
SSW
14
2.5
SSW
14
2.4
SSW
13
2.2
SW
13
1.9
SW
13
1.8
SW
12
1.7
SW
12
1.7
SW
13
1.8
SW
13
1.7
SW
13
1.8
SW
14
2.4
SW
16
2.5
SW
16
3
SSW
16
2.5
SW
16
2.4
SW
15
2.2
SW
14
2
SW
14
Wave Graph
Metric surfscale
Energy kJ
2825
402
441
701
774
4375
2378
2474
1974
1575
1174
925
833
917
990
940
1215
2937
3098
4173
3470
2700
2032
1581
Wind (km/h)
40
WSW
35
WSW
30
WSW
20
W
15
W
10
NW
10
NW
10
NNW
10
N
10
N
15
NW
15
NNW
15
NW
10
NW
15
NW
10
NNW
10
NE
10
NE
5
NE
10
N
15
NNE
15
N
15
N
15
NNE
cross-off
cross-off
cross-off
cross-off
cross-off
off
off
cross-off
cross-off
cross-off
off
off
off
off
off
cross-off
cross
cross
glassy
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
8:46PM0.74m
3:56PM0.65m
10:02PM0.68m
3:50PM0.63m
11:17PM0.62m
Low Tide
6:15AM-0.05m
5:50PM0.64m
7:07AM0.00m
7:35PM0.58m
7:49AM0.08m
part cloud
cloud
part cloud
part cloud
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
part cloud
cloud
cloud
cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:22
7:24
7:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
4:52
4:51
4:51
4:50
Temp °C
12
12
11
11
10
9
9
10
12
15
13
13
13
13
14
14
15
15
14
13
12
11
10
10
2
4
4
6
6
6
6
7
9
12
9
10
10
10
11
11
12
13
12
11
9
8
6
6
Swell 1
Height (m)
Direction
Period (s)
0.7
ENE
11
0.9
SSW
16
0.9
SSW
16
1
SSW
16
1
SSW
16
1.8
SW
11
2.5
SSW
14
2.5
SSW
14
2.4
SSW
13
2.2
SW
13
1.9
SW
13
1.8
SW
12
1.7
SW
12
1.7
SW
13
1.8
SW
13
1.7
SW
13
1.8
SW
14
2.4
SW
16
2.5
SW
16
3
SSW
16
2.5
SW
16
2.4
SW
15
2.2
SW
14
2
SW
14
Energy kJ
121
402
441
525
519
712
2378
2474
1974
1575
1174
925
833
917
990
940
1215
2937
3098
4173
3470
2700
2032
1581
Swell 2
Height (m)
Direction
Period (s)
1
SSW
16
0.8
ENE
11
0.8
ENE
12
0.7
ENE
11
0.7
ENE
11
1.3
SSW
15
0.7
E
11
0.6
E
11
0.7
E
11
0.7
E
11
0.7
E
11
0.7
E
11
0.7
E
11
0.7
E
10
0.6
E
10
0.6
E
10
0.6
E
10
0.6
E
10
1.3
SSW
20
0.5
E
10
0.5
E
10
0.5
E
10
0.5
ENE
9
0.4
ENE
9
Energy kJ
552
161
183
130
128
656
121
88
119
116
114
112
110
104
75
75
74
73
1205
49
48
46
49
28
Swell 3
Height (m)
Direction
Period (s)
0.3
E
15
0.3
E
15
0.7
E
11
0.3
E
14
0.2
SSW
16
0.6
E
10
Energy kJ
39
38
121
33
25
71
Wind waves
Height (m)
Direction
Period (s)
2.3
SW
16
2.1
SW
6
2
SW
7
1.9
SW
10
1.9
SW
10
3.5
SW
14
0.7
NE
5
0.6
NE
5
Energy kJ
2825
379
423
701
774
4375
22
18
Nearest Offshore or Glassy
Rating
(10 max)
2
2
2
1
3
4
4
4
4
4
4
3
3
3
3
3
4
4
5
5
5
4
4
4
Distance (km)
119
119
119
69
53
6
6
6
6
6
6
6
6
6
6
6
8
8
8
6
6
8
8
8
Best forecast wave conditions in East Coast of Tasmania
Rating
(10 max)
2
2
3
1
3
4
4
4
4
4
4
3
3
3
3
3
4
4
5
5
5
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
7
8
6
5
5
5
Header Global
Rating
(10 max)
5
5
4
4
4
5
5
5
4
5
5
5
5
4
4
4
5
7
7
8
6
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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