The number of new confirmed virus cases rose by 219 from the previous day, while the death toll increased by three, Poland's PAP news agency reported.
The Polish health ministry said it had deducted four previously reported cases from the total.
On Saturday, Poland reported 416 new coronavirus infections throughout the day and 10 deaths nationwide, compared with 333 new cases and 13 deaths a day earlier.
As of Sunday morning, the country had 2,134 suspected coronavirus patients in hospitals nationwide, while 78,823 people were under quarantine and a further 18,947 under epidemiological supervision.
Meanwhile, 11,271 people had recovered from COVID-19 throughout the country by Sunday morning, according to the Polish health ministry.
The first infection was confirmed by Polish authorities on March 4, while the country's first coronavirus fatality was announced on March 12.
Poland has since declared a "state of epidemic" and temporarily closed its borders to non-residents in a move to curb the spread of the illness.
International scheduled flights and passenger rail connections were suspended on March 15.
In another effort to contain the spread of the COVID-19 epidemic, the government banned public gatherings and closed all pubs, clubs and restaurants.
Health and government officials urged Poles to stay home and practice social distancing.
People were ordered to wear masks or other face coverings when out in public.
Some restrictions were relaxed last month, and hotels and shopping malls were allowed to reopen in early May as the country moved to the next phase of easing its coronavirus lockdown.
Nurseries and preschools throughout the country have been given the green light to resume operations.
Poland has also reopened outdoor sports areas and allowed football matches to be played behind closed doors.
Hairdressers, beauty parlours, restaurants, bars and cafes were allowed to reopen to customers last week.
Polish elementary schools began reopening to young children on Monday as the country lifted more COVID-19 safety measures.
Meanwhile, regular classes at all levels of Polish schools remain suspended until at least June 7.
Poland relaxed face mask rules on Saturday, and it also allowed public gatherings of up to 150 people.
In another move to ease coronavirus measures, the government lifted restrictions on how many people can gather in places such as retail outlets, restaurants and churches though face coverings and social distancing are still required.
Culture and entertainment venues as well as indoor sports facilities will be allowed to reopen from June 6.
Polish football stadiums are set to reopen to spectators from June 19.
(gs)
Source: IAR, PAP, TVP Info