12/26/2023 0 Comments 2021 summer equinox![]() ![]() ![]() ![]() We rotate around an 'axis'-a line from the north pole to the south pole, through the centre of the Earth-once every 24 hours, and we orbit the Sun once every year. The annual variation in temperatures that is felt in the south of Australia is a result of the tilt of the Earth's rotation axis. You can see some of these calendars of our Indigenous Weather Knowledge website. Over thousands of years, Indigenous Australians have maintained local calendars that divide each year into seasons based on prevailing weather patterns and phenology (the annual phenomena of animal and plant life). For guidance on the timing of enough rainfall to stimulate plant growth after the dry season, check our Northern Rainfall Onset tool. When the heavy rains arrive varies by year and location. dry season-the months that generally see less rain (May–September).wet season-the months that generally include the heaviest rainfall (October–April) and.In the tropics, each year is divided based on rainfall patterns: However, for Australia's northern tropics, there is little difference between average temperatures in 'winter' and 'summer', so the European four-season model isn't relevant there. You can view maps of average daily maximum temperature for winter, spring, summer and autumn across Australia here. spring and autumn-the three-month transition periods between summer and winter.winter-the coolest three months: June, July and August and.summer-the warmest three months: December, January and February.Australian summer, autumn, winter and spring are defined in the following way: But why?Īustralia's seasons: how many and when? Four seasons?Īustralia's weather year is typically divided into four seasons-based on the European model. Days are longer at the start and end of the year and shorter in the middle of the year. For most of Australia, weather at the start and end of each year is generally warmer, and the middle of the year is cooler. ![]()
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