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Get the monthly weather forecast for Sydney, New South Wales, Australia, including daily high/low, historical averages, to help you plan ahead.
Check accurate weather in December in Sydney. Expect Sydney December temperature around 24°C (76°F). Read clothing tips & recommended activities.
If you're lucky enough to be holidaying in Sydney in December, you can expect great weather. Unlike other parts of the world where the weather is cold and wet, December in Sydney is the start of summer, meaning the temperatures will rise and there will be lots of sun.
Spring, from September to November, is mild or pleasantly warm, sunny enough, and generally not too rainy. Summer, from December to March, is warm, with average temperatures not too high, and generally pleasant. Sea breezes constantly blow in the afternoon, and can sometimes be intense.
December Weather in Sydney New South Wales, Australia. Daily high temperatures increase by 2°F, from 77°F to 79°F, rarely falling below 68°F or exceeding 90°F. Daily low temperatures increase by 3°F, from 64°F to 67°F, rarely falling below 58°F or exceeding 71°F.
Daytime temperatures were relatively cool in December across Greater Sydney. Mean maximum temperatures were 1–2 °C below average away from the coast, but generally within 0.5 °C of the average at coastal sites.
Jun 26, 2019 · Summer here runs from December to February. From June to August, winter brings cooler nights, light rain and a refreshing sea breeze. Although many choose to visit in the spring and summer to make the most of the city's famous beaches, Sydney in winter is more suited for those sensitive to the sun or high humidity levels.
