IDT65092

Maria Island Wave Observations

Located at 42.52S, 148.35E
(Approximately 20km Northeast of Maria Island, East Tasmania)

Latest data at 13:30 on Tuesday, 20 Apr 2021 (AEST).
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
(AEST)
Wave Height Wave Period Wave Direction
Significant
(Hs metres)
Maximum
(Hmax metres)
Average
(Tz seconds)
Peak
(Tp seconds)
Direction
(degrees)
Spread
(degrees)
20  13:30 1.5 2.5 4.1 4.7 184 19
20  11:30 1.3 2.1 4.4 7.4 12 50
20  09:30 1.6 2.3 4.6 6.9 20 31
20  07:30 1.5 2.6 4.6 7.1 20 29
20  05:30 1.5 2.5 4.8 6.2 24 24
20  03:30 1.6 2.7 4.5 5.0 352 27
20  01:30 1.6 3.0 5.0 12.5 188 38
19  23:30 1.4 2.2 4.5 6.1 28 23
19  21:30 1.4 2.7 4.8 14.3 188 36
19  19:30 1.4 2.3 5.4 11.8 192 23
19  17:30 2.0 3.1 7.2 14.3 188 20
19  15:30 1.8 3.3 6.6 15.4 188 33
19  13:30 1.7 2.8 7.7 14.3 184 28
19  11:30 2.0 3.1 8.4 14.3 184 26
Document created: 20210420141202
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

  • 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 Tasmanian local time.
  • Each 'observation' (or record) is obtained by sampling the waves for 20 minutes.
  • This page is automatically updated every hour from available data.