ClimateAverages

Sydney Weather in December

JanFebMarAprMayJunJulAugSepOctNovDec
Right now
14°C
Partly cloudy · feels like 14°C
Humidity
77%
Wind
10 kph S
UV
0
Rain
0%
Updated Jul 9, 09:45 PMWeather data by WeatherAPI.com
December daytime high
25.8°C
December overnight low
16.9°C
December average
21.4°C

In December, Sydney typically sees daytime highs of 25.8°C and overnight lows around 16.9°C. Compared to the annual average high of 21.9°C, December runs +3.9°C.

vs. annual avg high
+3.9°C
Rank among 12 months
#3 warmest
Hottest year overall
2024

Where December ranks in Sydney

JanFebMarAprMayJunJulAugSepOctNovDec26°

FAQ

What is the average temperature in Sydney in December?

December in Sydney averages a daytime high of 25.8°C and an overnight low of 16.9°C.

Is December warm or cold in Sydney?

December runs +3.9°C compared to Sydney's annual average high of 21.9°C, ranking #3 of 12 months by warmth.

What should I pack for Sydney in December?

Plan for daytime highs near 25.8°C and cooler evenings around 16.9°C.

Other months for Sydney

JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovember

December in nearby cities

NewcastleMaitland