Sydney has a pleasant climate with lots of sunshine, particularly in the summer months from December to February. The hottest months are January and February, which can see daytime temperatures reaching as high as 90°F (35°C). Winter is from June to August and, though sometimes chilly and a bit wet, is generally mild, with temperatures only rarely dropping below 47°F (9°C).

Sydney does occasionally experience weather-related hazards. Sydney's weather has been getting progressively drier over recent years, causing droughts and bushfires. When it does rain, there may be flash flooding, hail and wind storms. Mostly this just causes inconvenience but may be hazardous. Expats should be sure to stay up to date with the latest weather alerts and adhere to weather-related regulations such as water restrictions.