Weather in Sydney in December
December in Sydney is warm outdoor weather. Days are long enough to be useful. Shade starts to matter at midday.
In Australia, this is how Sydney actually wears December, not how a country centroid would. December is high summer in the southern year. Do not pack Sydney as if it were a northern winter. Compared with January and July, December sits in the middle of Sydney's year.
- Average temp
- 22°C
18–26°C
- Rainfall
- 68 mm
Showers likely
- Sunshine
- 7.5 h
hours per day
What to expect
Daytime
Warm days in Sydney in December. A hat starts to earn its keep at midday. Evenings are the comfortable part of the clock.
You can walk at more hours than in the fierce months. Still build in a pause when the sun is high. Nights are easy.
Rain
Mixed skies in Sydney in December. Dry days and wet days share the month. Outdoor plans need a backup, not a cancellation policy.
Pack a shell you will actually carry. The monthly table is the place for totals. This is the feel: usable, interrupted.
Evening
Evenings stay warm.
What to pack
Sun protection
Rain jacket
Where to stay in Sydney
Dates are a starting point for December.
Travel guides for Sydney
What to read before you book.
Average weather in Sydney
TemperatureRainfall
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FAQs about Sydney
Climate averages for Sydney, 1991–2020.
The best time to visit Sydney is between October and January, the most comfortable stretch of the year on these averages.
January is the hottest month, with an average around 24°C.
June is the wettest month, with about 121 mm of rain.
No. These are 1991–2020 climate normals from Meteostat, not a live forecast. Actual weather in any given week can differ.
