Technically, USD/KRW is testing support at 1150 and the next levels to watch are 1136 and 1118 ahead of 1089, the September 2016 low.
Nikkei 225 traded 1.4% down and STI down 0.95% at 10:55 am Singapore time while Malaysia's KLSE fell 0.5% and South Korea's KS11 dropped 0.4%.
Chinese property sales growth will slow in 2017 weighed by tighter regulations to the sector by the authorities following excessive price rise.
Asian stock markets were mostly down on Monday as Trump's immigration ban led to geopolitical tensions across markets while risk aversion helped yen rally and dollar slide.
Finance Minister Tantivorawong says the Thai GDP growth rate should increase by 0.4-0.5 percentage points in 2017 on extra government spending of 190 billion baht.
The US dollar fell across the board on Friday (Jan 27) as data showed the US economy expanded less than expected in the fourth quarter and the durable goods orders continued to fall against expectations of a rise.
Singapore said the import and export price index too rose more than expected in December.
The Philippine GDP growth moderated to 6.6% annually in the three months to December from 7% in the previous two quarters.
Local employment grew modestly in 2016 and foreign employment contracted, the labour ministry said in its report.
Core inflation, excluding accommodation and private road transport stands at 1.2 percent.
Analysts say a cooling property market can be one of the major threats to China's economy in 2017.
Non-oil domestic exports grow 9.4 percent, petrochemicals shipment jumps 28.5 percent.
Bank Negara Governor Muhammad Ibrahim assures there are no plans to bring in capital controls.
Lighthizer now gets a second go at his anti-free trade crusade, with the theatre shifting to China and the Southeast Asia.
A sharp rebound in manufacturing and services helped GDP to expand 9.1 percent quarter on quarter.