UK storm names 2015: Why our storms are called Barny, Frank & Nigel. by Richard Chapman - 22 October 2015 9:45am. Richard Chapman is UK editor at the Weather Network.K storm names 2015: Why our storms are called Barny, Frank & Nigel. by Richard Chapman - 22 October 2015 9:45am. Richard Chapman is UK editor at the Weather Network.
Sydney: Annual Weather Averages. January is the hottest month in Sydney with an average temperature of 23Â°C (73Â°F) and the coldest is July at 13Â°C (55Â°F) with the most daily sunshine hours at 9 in December. The wettest month is March with an average of 164mm of rain.
CLIMATE: AVERAGE MONTHLY WEATHER IN Sydney, Australia. Sydney has a humid subtropical climate meaning mild cool winters and hot summers. Rain and sunshine is spread out evenly throughout the year. Summer in Sydney starts in December and lasts until the end of March. In the summer months it is hot and the maximum average temperatures are between 22 and 30 degrees Celsius (71.6-86Â° Fahrenheit).