The continent-wide STOXX 600 index rose 1.3% by 0708 GMT, with travel and leisure, retail and banking sectors leading the gains.

Wall Street's main indexes rallied on Friday after a report said the Fed will likely debate on a smaller interest rate hike in December. [.N]

However, UK's blue-chip FTSE 100 underperformed as the pound rose following news that Boris Johnson had withdrawn from the contest to become Britain's next prime minister, likely paving way for Rishi Sunak to become the leader.

Meanwhile, Italian stocks rose 1.4% after Giorgia Meloni was sworn in as Italy's first woman prime minister on Saturday.

Among single stocks, Philips gained 1% after the Dutch medical equipment maker said it expected to scrap around 4,000 jobs as it tried to streamline its organisation.

Dutch technology investor Prosus lost about 10%, tracking weakness in Hong Kong tech giants, after Chinese President leader Xi Jinping's newly unveiled leadership team heightened fears that economic growth will be sacrificed for ideology-driven policies. [.SS]

Flash readings of euro zone and UK business activity for October are due later in the day.

(Reporting by Sruthi Shankar in Bengaluru; Editing by Shailesh Kuber)