The Australian Environment Australian National Botanic Gardens Australian National Herbarium

Seasonal Rainfall Patterns in Australia

The rainfall pattern is strongly seasonal in character with a winter rainfall regime in the south and a summer regime in the north. Uniform rainfall occurs in much of New South Wales, parts of eastern Victoria and southern Tasmania. The monsoonal rains or the extreme north fall between November and March and are often unreliable.

More than 80% of the continent has at least three months each year that are without effective precipitation.