What is the weather like in Adelaide vs Sydney in December?

In December, Adelaide averages 28°C high / 15°C low with about 20 mm of rain; Sydney averages 24°C high / 19°C low with about 87 mm.

Adelaide vs Sydney in December

Adelaide is the better pick in December — 91 vs 87 on SeasonMap's comfort score. Adelaide is warm, dry, clean air, while Sydney is warm, rainy, clean air.

Adelaide vs Sydney — December climate, side by side

	Adelaide	Sydney
Comfort score	91/100 (S)	87/100 (A)
Feels-like high	27°C	25°C
Avg high / low	28° / 15°	24° / 19°
Rainfall	20 mm	87 mm
Rainy days	3	10
Humidity	56%	72%
Air quality (AQI)	26	49

Monthly climate normals (ERA5 reanalysis). Comfort scores are SeasonMap estimates.

Adelaide vs Sydney in December — FAQ

Is December better in Adelaide or Sydney?: Adelaide is the better pick in December — 91 vs 87 on SeasonMap's comfort score. Adelaide is warm, dry, clean air, while Sydney is warm, rainy, clean air.
What is the weather like in Adelaide vs Sydney in December?: In December, Adelaide averages 28°C high / 15°C low with about 20 mm of rain; Sydney averages 24°C high / 19°C low with about 87 mm.