Economic data awaits investors in Asia-Pacific markets, which open with mixed sentiment.

• This week, major markets in the region will release inflation data from South Korea, second-quarter GDP data from Australia, and pay and household spending data from Japan.
• In August, China published its official PMI data, showing a six-month low of 49.1 for manufacturing, which was a faster contraction compared to the 49.4 seen in July.

On Monday, Asia-Pacific markets opened with mixed results as investors prepared for a busy week of economic data and evaluated China's recently released business activity figures.

This week, major markets in the region will release inflation data from South Korea, second-quarter GDP data from Australia, and pay and household spending data from Japan.

In August, China released its official purchasing managers' index data, showing a six-month low of 49.1 for manufacturing PMI, which was a faster contraction compared to the 49.4 seen in July.

The figure fell short of the median forecast of 49.5 from Reuters-polled economists, with the index remaining in contraction for the fourth consecutive month.

Meanwhile, China's non-manufacturing PMI increased to 50.3 from July's 50.2.

The Nikkei index in Japan increased by 0.94%, surpassing the 39,000 mark for the first time since July 31, while the broad-based Topix index rose by 0.49%.

While the small cap Kosdaq was marginally lower, South Korea's lost 0.49%.

Australia's S&P/ASX 200 slipped 0.43%.

The HSI's last close of 17,989.07 was higher than Hong Kong futures, which sat at 17,785.

On Friday, the Dow Jones Industrial Average reached a new record high in the US, with the blue-chip index increasing by 0.55% to close at 41,563.08. The S&P 500 advanced by 1.01%, while the tech-heavy Nasdaq Composite gained 1.13%.

On Friday, the Federal Reserve closely monitored key inflation data assessed by traders.

In July, the personal consumption expenditures price index increased by 0.2% on a monthly basis and 2.5% from a year ago, as predicted by economists surveyed by Dow Jones.

The percentage increase from the previous month, excluding food and energy, was 0.2%.

—CNBC's Lisa Kailai Han and Pia Singh contributed to this report.