Compared to more northerly parts of Australia, Sydney is not usually very hot. Sydney has a temperate climate which means it has warm summers and cool winters. The temperature can be higher in the inland suburbs than in the areas closer to the ocean. In Sydney's warmest month, January, the average air temperature at Observatory Hill ranges from 18.7 to 25.9 °C (66–79 °F) according to the Australia Bureau of Meterology.