Western Australia South 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.
Storm-force winds forecast to hit South Australia this week will be the strongest the state has had in more than 50 years, the weather bureau has warned.
Heavy rains across New South Wales have farmers reassessing possible machinery purchases despite their still expressing interest in new equipment.
Australia's tropics are acting like it's already the wet season, even though September is technically the final month of the dry.