Sydney - Recent December Temperatures and Rainfall





The numbers here describe what the December weather in Sydney, New South Wales Australia was like for every year since 2010. A series of tables gives December data by year for temperature and precipitation.

They begin with average maximum and minimum temperatures in degrees Fahrenheit and Celsius. That's followed by how many hot days occurred each December. Then there's information on how much rain actually landed this month during recent years, as well as how often Sydney had wet weather.

The climate data up until 2019 come from weather measurements made at Sydney's Observatory Hill Park. Since then the weather was recorded at Sydney Airport.

Temperature Weather iconTemperature

December temperature averages by year in Sydney
High °F Low °F Year High °C Low °C
79 65 2020 26 18
80 66 2019 27 19
80 67 2018 27 19
82 68 2017 28 20
83 68 2016 28 20
79 65 2015 26 18
79 66 2014 26 19
80 65 2013 26 19
79 66 2012 26 19
74 62 2011 23 17
78 66 2010 26 19
Number of days in December when the temperature in Sydney rose to at least 21 or 32 degrees Celsius
Year 21 °C
70 °F
32 °C
90 °F
2020 28 1
2019 31 3
2018 31 1
2017 30 4
2016 30 6
2015 31 3
2014 31 0
2013 31 3
2012 30 1
2011 28 0
2010 29 0

Rainy Weather iconRain

This table gives the total precipitation that fell on Sydney during December in each year from 2010. The number of days with precipitation counts the days when rainfall amounted to 0.254 millimeters (0.01 inches) or more.

Total rainfall for December in Sydney
Days Year Inches Milli­metres
14 2020 2.8 72
1 2019 0.1 2
9 2018 3.7 95
11 2017 1.9 47
8 2016 2.6 65
10 2015 3.8 97
13 2014 4.7 118
6 2013 1.2 31
9 2012 1.8 45
15 2011 3.1 78
9 2010 3.3 83
Reference

Australian Government Bureau of Meteorology. Climate Data Online.

Jay Lawrimore. 2016. Global Summary of the Month, Version 1.0. NOAA National Centers for Environmental Information. 

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