The centre right coalition is at 47% in a new opinion poll for the September 25 Italian general election, alluding to a clear majority in both the house of parliament, and the advent of far-right Fratelli D’Italia (FdI) leader Giorgia Meloni as Italy's first woman and first post-Fascist premier, the Demopolis research institute said Wednesday.

FdI is the top party at 24%, followed by the centre-left Democratic Party (PD) on 22.6%, Demopolis said in its latest survey.

FdI's main ally, the nationalist Lega party of former anti-migrant interior minister Matteo Salvini, is third on 14.5%, according to the poll.

The populist 5-Star Movement (M5S), which recently split from an alliance with the PD and is standing alone, is fourth on 11%.

The third cog in the centre right machine, three-time ex-premier and media mogul Silvio Berlusconi's Forza Italia (FI) party, is fifth on 7%. Azione-Italia Viva, whose leader and former industry minister Carlo Calenda also recently split with the PD over its alliance with smaller more leftist parties, is sixth on 5.8%.

The PD's allies, Italian Left-Greens, are polling at 3.7%, and the independent Italexit party is on 3.1%.

Demopolis Director Pietro Vento said: "one month from the vote, the centre right coalition led by Giorgia Meloni's party has an advantage of over 16 percentage points over Enrico Letta's centre left, with clear effects on the attribution of first-past-the-post seats". About a fifth of the electorate have yet to make up their minds, he added.