Is Adelaide hot in December?
Days are typically warm at 27.6°C, while nights average 15.8°C.
Australia · 1991–2020 normal
Typical December weather in Adelaide: 27.6°C by day, 15.8°C at night, 27 mm of rain over 4.4 wet days. These are measured 1991–2020 station normals, not a forecast.
In the year-round weather comparison, December scores 85 out of 100 (November leads the year at 92). Daylight is calculated as 14 h 29 from latitude -34.93°. Open-water sea temperature is 19.7°C (21 km from the place centre).
December at a glance
Plain answers from the measured climate record—not a forecast or a promise about a particular trip.
Days are typically warm at 27.6°C, while nights average 15.8°C.
The measured monthly average is 27 mm across about 4 wet days.
There are about 14 h 29 between sunrise and sunset at mid-month, calculated from the place latitude.
December ranks 5 of 12 in our weather comparison; November ranks first.
The evidence behind this page
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The weather comparison for Adelaide is based on climate evidence, not payments from travel companies. Flight, accommodation and activity links will be clearly labelled when they are added; there are no booking offers on this page today.
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