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 enjoys a sunny climate with mild winters and warm summers, perfect for making the most of the outdoors. Plan ahead with this information on temperature and rainfall. During summer, average temperatures range from 18.6 - 25.8Â°C (65.5 - 78.4Â°F), and average humidity spikes to 65%.
Average Weather in December in Sydney Australia. In Sydney, the month of December is characterized by gradually rising daily high temperatures, with daily highs increasing by 2Â°F, from 77Â°F to 79Â°F over the course of the month, and rarely exceeding 90Â°F or dropping below 67Â°F.