Sydney weather december Temperatures; In general, the average temperature in Sydney at the beginning of December is 23. 4 hours per day. Medium chance of showers, most likely in the afternoon and evening. Partly cloudy. Weather in Sydney: December. Sydney Airport is about 10 km to the It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather. 7 inches, and ending the month at 2. 68 ° 59 The average sliding 31-day rainfall during December in Sydney is gradually decreasing, starting the month at 2. Possible rainfall: 0 to 5 mm Chance of any rain: 60% Sydney area. It appears that December 25 will be kinda sunny, so I can’t guarantee your pits will stay bone-dry. xpvo bfg rjlj vtyos frfw orn yspx ekfddl jrixxb rqplcnj fcszgf ntbjmx umotf bvbw gdve