Global Sea Surface Temperature
The sea surface temperature (SST) varies much more slowly than atmospheric temperatures due to the heat capacity of water. As such, the SSTs lag the atmospheric temperatures on a seasonal timescale by about 3 months. The lowest SSTs are usually observed in early Spring and the highest SSTs are observed in early Autumn.
In tropical regions, SSTs greater than 26°C are considered suitable for formation of tropical cyclones.
The data displayed in this map is the weekly average, centred on the date shown.
The federal and state governments have announced up to $14 million will be made available to help Tasmania recover from the .
Hot weather can take a serious toll on our health.
Victorians who experience breathing difficulties or asthma have been advised to take extra care this evening, with a cool change and thunderstorms predicted for the state.