South Australia 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.
Perth is heading for a scorching 40 degrees Celsius on day one of a heatwave that is expected to last for at least five days.
After a wet start to the year, southeastern Australia is drying out, beginning its driest spell in about two months.
Around 20 cars became partially submerged after falling through a temporary car park established on Wisconsin's frozen Lake Geneva on Saturday local time.