Melbourne could be on track to registering its wettest autumn in nearly 50 years as the city eyes off more rain during the final two weeks of the season.

At the start of this week, Melbourne was already having its wettest autumn in 25 years after receiving 233.8mm since the beginning of the season.

A series of fronts are likely to cause more rain on multiple days in Melbourne this week, possibly dropping another 20mm or so into the city's rain gauge.

There are also indications that more rain could hit the city next week as another frontal system passes over Victoria. 

If Melbourne picks up another 19.3mm or more before the end of the month, this will become Melbourne's wettest autumn since 1974, surpassing the seasonal total of 253mm from 1995.

This would also put 2020 into the top six autumns in 164 years of records.

Melbourne's wettest autumn on record was 324.3mm in 1900.