Portuguese voters with Covid-19 or those in isolation due to exposure to the rampant virus will be allowed to leave home to cast their ballots in a snap election on Jan 30, the government said.

The announcement came a day after Portugal, which has almost 90 per cent of its 10 million population fully inoculated, reported a daily record of 43,729 Covid-19 infections, stoked by the fast spreading Omicron variant.

Hospital admissions and mortality remain well below levels seen in the previous peaks, Reuters reports.

Interior Minister Francisca Van Dunem told a news conference quarantined voters should only head to polling stations from 6pm to 7pm, urging those not infected to go before that period.