IDS65031

Cape du Couedic Wave Observations

Located at 36.07S, 136.61E
(4nm West of Cape du Couedic Light House, Kangaroo Island)

Latest data at 00:00 on Tuesday, 21 Apr 2026 (ACST).
Click here for Wave Height and Wave Period Graphs

IMPORTANT:- The significant wave height is the average height of the highest one third of the waves. The likely maximum wave height can be up to twice the significant wave height. Learn more about wave heights.
 
Date Time
(ACST)
Wave Height Wave Period Wave Direction
Significant
(Hs metres)
Maximum
(Hmax metres)
Average
(Tz seconds)
Peak
(Tp seconds)
Direction
(degrees)
Spread
(degrees)
21  00:00 2.4 3.8 7.9 12.5 216 38
20  23:00 2.4 4.1 8.0 11.8 208 41
20  22:00 2.0 3.4 7.7 11.1 200 50
20  21:00 2.1 3.5 7.1 12.5 188 43
20  20:00 2.2 3.4 7.4 14.3 220 31
20  19:00 2.2 3.5 7.6 9.5 236 33
20  18:00 2.3 3.8 7.4 14.3 212 31
20  17:00 2.1 3.2 7.8 11.8 236 49
20  16:00 2.3 4.7 7.7 11.8 228 48
20  15:00 2.4 4.1 8.1 11.1 212 47
20  14:00 2.5 3.8 8.4 9.5 228 24
20  13:00 2.5 4.4 8.5 10.5 232 36
20  12:00 2.4 3.5 8.4 11.1 224 44
20  11:00 2.4 4.2 8.2 11.1 216 46
20  10:00 2.5 4.1 9.0 12.5 200 42
20  09:00 2.3 3.4 8.1 11.1 232 45
20  08:00 2.5 4.2 8.7 10.5 232 37
20  07:00 2.5 4.3 8.0 11.1 224 40
20  06:00 2.4 3.9 7.9 12.5 164 47
20  05:00 2.2 3.6 7.9 13.3 168 44
20  04:00 2.1 3.2 7.6 11.8 200 43
20  03:00 2.2 3.2 7.4 15.4 180 55
20  02:00 2.1 3.1 7.3 14.3 168 47
20  01:00 2.0 3.5 6.8 11.1 160 49
20  00:00 1.8 2.7 6.8 15.4 192 48
19  23:00 1.7 2.5 6.6 15.4 160 46
19  22:00 1.7 2.7 6.2 16.7 188 47
19  21:00 1.5 2.4 6.3 15.4 188 43
19  20:00 1.5 3.0 6.0 12.5 148 40
19  19:00 1.5 2.8 6.2 12.5 136 41
19  18:00 1.5 2.3 5.6 13.3 160 45
19  17:00 1.6 2.8 6.0 12.5 144 38
19  16:00 1.4 2.4 5.2 10.0 160 45
19  15:00 1.4 2.2 5.1 12.5 152 58
19  14:00 1.4 2.2 5.0 12.5 136 56
19  13:00 1.4 2.2 5.3 11.8 156 49
19  12:00 1.2 2.0 5.2 11.8 160 54
19  11:00 1.3 2.0 5.0 10.5 164 38
19  10:00 1.3 2.4 5.4 11.8 164 52
19  09:00 1.1 1.9 5.4 12.5 152 55
19  08:00 1.1 2.0 6.7 12.5 180 41
19  07:00 1.0 1.7 6.4 12.5 140 40
19  06:00 1.1 1.5 7.4 12.5 148 49
19  05:00 1.2 1.9 7.2 12.5 152 42
19  04:00 1.0 1.8 5.4 12.5 164 52
19  03:00 1.2 2.0 5.8 12.5 164 42
19  02:00 1.2 2.4 5.5 10.0 152 33
19  01:00 1.2 2.5 4.9 12.5 164 43
19  00:00 1.1 2.0 5.1 12.5 156 50
18  23:00 1.2 2.2 5.3 12.5 160 51
18  22:00 1.3 2.0 5.2 12.5 184 52
18  21:00 1.3 2.5 5.4 11.1 188 36
18  20:00 1.3 2.2 5.5 11.1 192 42
18  19:00 1.3 2.1 6.0 10.5 192 41
18  18:00 1.3 2.0 6.6 11.1 212 41
18  17:00 1.6 2.8 6.8 10.5 204 42
18  16:00 1.6 2.7 6.7 11.1 208 34
18  15:00 1.6 2.2 7.2 11.1 216 39
18  14:00 1.7 2.6 6.9 11.8 216 33
18  13:00 1.9 2.5 8.2 13.3 232 38
18  12:00 1.7 3.3 6.4 12.5 224 34
18  11:00 2.0 3.2 7.5 11.8 212 31
18  10:00 2.2 3.2 8.0 11.8 220 27
18  09:00 2.1 3.0 7.3 13.3 224 31
18  08:00 2.1 3.1 6.7 11.8 212 32
18  07:00 2.2 4.2 7.2 13.3 228 27
18  06:00 2.4 4.6 7.6 13.3 220 24
18  05:00 2.3 3.8 7.1 12.5 220 26
18  04:00 2.4 4.5 7.7 14.3 228 26
18  03:00 2.2 3.7 7.2 13.3 240 31
18  02:00 2.5 4.6 8.0 13.3 220 29
18  01:00 3.0 4.6 8.9 14.3 224 25
Document created: 20260421031003
Key
Hs Height of significant wave (metres). This is the average height of the highest one third of the waves in the record.
Hmax Maximum height of the waves (metres) in the record.
Tz Average wave period. This is the average time (seconds) between all waves in the record. The more technical name for this quantity is the zero-crossing period.
Tp The peak wave period (seconds) is the period at which the peak of the wave spectrum occurs.
Spectral density Distribution of the variance of the surface elevation with wave period or frequency (proportional to the wave amplitude squared).

Notes

This page contains wave observations from a moored wave data buoy located 4.2nm West of Cape du Couedic Light House (Kangaroo Island) in 44 fathoms (80 metres). Location: 36.07S, 136.62E.

  • These observations have been taken from the Bureau of Meteorology's real-time system. These data are automatically generated and are not quality controlled. It is possible for incorrect values to appear. Further information can be found about Latest Weather Observations. Please check the disclaimer before using these data.
  • All times and dates are in South Australian local time.
  • Data for this page is downloaded manually approximately every 3 hours.
  • Each 'observation' (or record) is obtained by sampling the waves for 27 minutes.
  • This page is automatically updated every hour from available data.