According to the National Centre for Hydro-meteorological Forecasting, the cold weather will start to affect northeastern and northern central localities first and then spread to northwestern areas.

The northern region would face a strong cold wave from Thursday morning
Light rain would happen in the north from this evening to Thursday morning. Meanwhile, localities from Thanh Hoa to Khanh Hoa would see heavy rains and strong wind until the end of Thursday.
From Thursday, the lowest temperature in the northern region and localities from Thanh Hoa to Thua-Thien Hue would be 13-16 degrees centigrade. Meanwhile, the temperature in mountainous areas would fall to below 10 degrees centigrade.
Hanoi has been forecasted to have light rain with a temperature of between 14-16 degrees centigrade from tomorrow, December 9.