Markets in China, Japan and Thailand are closed on Monday for holidays.
Currencies and oil
The U.S. dollar index, which tracks the greenback against a basket of its peers, was at 91.231 after rising late last month from below 90.9.
The Japanese yen traded at 109.37 per dollar, weaker than levels below 108.5 against the greenback seen last week. The Australian dollar changed hands at $0.7714, following its tumble in late April from above $0.776.
Oil prices were higher in the morning of Asia trading hours, with international benchmark Brent crude futures up 0.27% to $66.94 per barrel. U.S. crude futures also gained 0.3% to $63.77 per barrel.