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.
Key weather averages for Sydney in June. 1  18. 18Â°C max day temperature. 2  6. 6 hours of sunshine per day. 3  11. 11 days with some rainfall. 4  9. 9Â°C min night temperature. 5  10. 10 hours of daylight per day. 6  0. No heat & humidity. 7  151. 151 mm of monthly rainfall. 8  2. 2 (Low) UV index. 9  19. 19Â°C sea temperature.