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Sydney weather in December 2021
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- 2626°C max day temperature
- 1010 days with some rainfall
- 1818°C min night temperature
- 1414 hours of daylight per day
- LLow heat & humidity
- 8686 mm of monthly rainfall
- 1111+ (Extreme) UV index
- 2121°C sea temperature
Recommended for New South Wales
The December weather guide for Sydney, New South Wales shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
How hot is it in Sydney in December?
Daytime temperatures usually reach 26°C in Sydney in December with low heat and humidity, falling to 18°C at night.
How sunny is it in Sydney in December?
There are normally 8 hours of bright sunshine each day in Sydney in December - that's 54% of daylight hours.
How warm is the sea around Sydney in December?
The average sea temperature around Sydney in December is 21°C.
Does it rain in Sydney in December?
There are usually 10 days with some rain in Sydney in December and the average monthly rainfall is 86mm.
Metric (°C / mm) | Imperial (°F / inches)
Sydney sunrise & sunset times for December 2021
Browse the sunrise and sunset times for Sydney in December 2021. Select a month to view Sydney sunrise & sunset times for the next 12 months.
|Date||Sunrise times||Sunset times|
|Wednesday, 1st December 2021||05:37||19:51|
|Thursday, 16th December 2021||05:39||20:03|
|Friday, 31st December 2021||05:47||20:09|
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