Height
4.8m
Hs
Period
11s
Tp
Direction
SE
128°
Water
21.6°C
Last update: 18 Jul, 23:00
Access historical readings and compare readings with the forecast
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Last 24 hours
Time(GMT+10) | Wave height | Max height | Period | Direction | Water temperature | Energy |
|---|---|---|---|---|---|---|
Buoy Brisbane Mk4 continuously measures essential oceanographic parameters for surfing and water sports. (-27.485820° lat, 153.631940° lng)
This marine station records significant wave height, maximum height, wave period, swell direction, and water temperature.
This buoy's observations are supplied through Queensland Coastal Data System waves by Queensland Government.
The average of the highest third of waves. This is the most representative measure of the wave size you'll see on the water.
The highest wave recorded during the measurement period. Generally 1.5 to 2 times the significant height.
The time in seconds between two wave crests. A long period (>12s) indicates more powerful and consistent groundswell.
The direction the swell is coming from. The impact on the coast depends on the shoreline orientation.
Significant height (Hs) is the average of the highest third of waves, representing what you typically observe. Maximum height (Hmax) is the largest wave measured, often 1.5 to 2 times higher than Hs. A set of large waves can occasionally exceed Hs.
A long period (>12s) means waves have traveled far and carry more energy (groundswell). A short period (<8s) indicates local wind-generated swell, more disorganized. For surfing, longer periods produce more powerful and better-shaped waves.
Buoys typically transmit their data every 30 minutes to 1 hour. The delay between measurement and display depends on the transmission network and our collection system.
The buoy measures direction offshore. Waves change direction as they approach the coast due to refraction (seabed effect). Beach orientation and coastal obstacles also influence the final wave direction.
Height
4.8m
Hs
Period
11s
Tp
Direction
SE
128°
Water
21.6°C
Last update: 18 Jul, 23:00
| Jul 18, 11:30 PM | 4.6m 4584 kJ | 7.2m | 10.5s | 124° SE | 21.6°C | 4584 kJ |
| Jul 18, 11:00 PM | 4.8m 4993 kJ | 7.7m | 10.5s | 128° SE | 21.6°C | 4993 kJ |
| Jul 18, 10:30 PM | 4.2m 3412 kJ | 6.9m | 10.0s | 128° SE | 21.6°C | 3412 kJ |
| Jul 18, 10:00 PM | 4.5m 4367 kJ | 8.1m | 10.5s | 127° SE | 21.6°C | 4367 kJ |
| Jul 18, 09:30 PM | 4.0m 3062 kJ | 6.8m | 10.0s | 132° SE | 21.6°C | 3062 kJ |
| Jul 18, 09:00 PM | 4.0m 3876 kJ | 6.8m | 11.1s | 119° SE | 21.6°C | 3876 kJ |
| Jul 18, 08:30 PM | 4.4m 4605 kJ | 6.8m | 11.1s | 130° SE | 21.6°C | 4605 kJ |
| Jul 18, 08:00 PM | 4.9m 5721 kJ | 7.3m | 11.1s | 132° SE | 21.5°C | 5721 kJ |
| Jul 18, 07:30 PM | 4.4m 4136 kJ | 7.1m | 10.5s | 119° SE | 21.5°C | 4136 kJ |
| Jul 18, 07:00 PM | 4.3m 4023 kJ | 6.5m | 10.5s | 124° SE | 21.5°C | 4023 kJ |