Summer in Melbourne
Melbourne Weather in December
On average, Melbourne sees a top of 24°C and an overnight low of 14°C in December, with around 10 rain days and 59mm of total rainfall. UV is typically extreme, 11-12.
24°C
14°C
59mm
10
What December is like in Melbourne
Summer officially arrives and the first heatwaves of the season roll in. December afternoons regularly hit the mid-20s to low 30s and the long daylight hours beg for time at the bay beaches. Watch for late-afternoon storms on the hottest days.
These figures are long-term averages, not a forecast — for today's actual conditions and the week ahead, check the live Melbourne weather forecast. Averages are useful for planning travel, events or what to pack, but any single December can run warmer, cooler, wetter or drier than the long-term normal.