Oil prices also extended gains, fuelled by growing optimism that the reopenings and vaccine rollouts will lead to a surge in activity over the coming months and ramp up demand.
Singapore shares, however, climbed 0.7% after suffering their sharpest fall in 11 months on Friday. The city-state has now closed schools to combat the resurgence of COVID-19 cases.
Crude, which tipped a 14-month high earlier this month, has suffered heavy selling in the past couple of weeks on fears about the impact on demand caused by new European lockdowns.
The rising hostilities underscore a dangerous intensification of Yemen's conflict between the coalition-backed Yemeni government and the Iran-backed Huthis, despite a renewed US push to end the war in the crude-rich region.
"There's a great deal of optimism in the air and that's one of the biggest reasons we've seen this rise in interest rates in the US and globally," Tom di Galoma, at Seaport Global Holdings, said.