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.

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Weather News

Weather forecasts are not immune to COVID-19

13:19 EDT

The World Meteorological Organisation (WMO) is concerned about the impact COVID-19 is having on international weather forecasts and climate monitoring.

Australian agriculture bounces back to life as BOM heralds wet start to 2020

12:30 EDT

Parts of eastern Australia have seen the wettest start to a year in nearly a decade, sending agricultural production bursting back to life.

Another wet month for parched Murray-Darling Basin

15:54 EDT

For the first time since 2017, the Murray-Darling Basin has just had back-to-back months with above average rain.