The firm said the death number was more than 5,500, bringing the total to 917,417.
The largest infections were recorded in India, the United States and Brazil.
Globally, there have been more than 28 million cases shown, part of them in the Americas.
The last record of a day for new cases on 6 September, when WHO reported 306,857 new infections.
According to WHO, India reported 94,372 new on Sunday, followed by the United States with 45,523 and Brazil with 43,718.
More than 1,000 new deaths have been reported in the United States and India, while Brazil has reported that another 874 people have died from Covid-19-related diseases in more than 24 hours.
India has the highest number of cases shown in the world, the United States. Last week, it reported nearly two million Cases of Covid-19 in August, the highest count per month in the world since the start of the pandemic.
The country recorded an average of 64,000 instances constant with the day, 84% more than the average instances in July, according to official data. The death toll has exceeded 1,000 depending on the day since early September.
Brazil has recorded more than 4 million cases, the third in the world, has the number of deaths in Latin America, with around 131,000 to date.
The United States has recorded nearly a quarter of the total number of coronavirus cases internationally, more than six million. He saw an increase in the number of cases in July, but numbers have declined since then.
The United States has the number of deaths worldwide due to Covid-19, with more than 194,000 deaths.
European countries are experiencing an increasing number of cases amid fears of a resurgence of the virus.
Local padlocks have been imposed in the maximum affected areas, and new calls have been made for others to wear hats and to comply with social esttachment regulations.
Other countries that have a resurgence of the virus are Peru, Israel, South Korea and Australia.
On Sunday, Australian state police in Victoria arrested more than 70 protesters for disobeying orders to remain at home. Approximately 250 other people attended the demonstration in melbourne, which he promoted through social media teams that shared conspiracy theories about the pandemic.
Victoria has been the epicentre of the epidemic in Australia, accounting for 75% and 90% of deaths.
Neighboring New Zealand will lift restrictions on coronaviruses in Auckland’s largest city on 21 September, Prime Minister Jacinda Ardern announced Monday.
The country has been very fortunate in the face of coronavirus, however, restrictions were imposed in Auckland last month after several new infections were identified.
Israel, for its part, will impose a new national blockade as coronavirus instances continue to increase. Severe restrictions will take effect on Friday, the Jewish New Year, and will last at least 3 weeks, the government said.
Israel has recorded more than 153,000 infections and 1,108 deaths due to Covid-19, according to a johns Hopkins University account.