Melbourne is experiencing a spell of 'upside-down' weather with temperatures surprisingly warmer at midnight than midday.
The city, notorious for bizarre and unpredictable weather, reached 19.4 degrees at midnight after recording a temperature of just 15.8 degrees at midday yesterday.
According to Weatherzone, Melbourne was 3.6 degrees warmer in the middle of the night than in the middle of the previous day.
The strange temperature was due to warm air being pushed from the north across the city ahead of a cold front.
READ MORE: Cold front to bring damaging winds to several states
© 9NewsA golden sunrise captured on the Nine News Melbourne skycam.
Clouds also contributed to the warm, balmy night.
Temperatures were much warmer than Melbourne's average April minimum of 10.8 degrees.
The minimum temperature recorded was 16.8 degrees after dawn, when clouds moved away and caused the temperature to drop.
Melburnians did not wake up today to the usual chilly morning generally expected this time of year, with temperatures as warm as 20 degrees at 5.20am.
A top of 21 degrees has been forecast for Melbourne for the rest of the day.
Sydney also is experiencing a warm burst of extended summer, with a top temperature of 29 degrees today.