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.
A cold front is surging towards Perth, bringing thunderstorms and wind.
Monster swells off the coast of south-west Victoria have created a wave of excitement among local surfers.
A North Queensland couple has survived a three-year dry spell and another failed wet season by changing the way they manage their 23,000 hectare cattle station.