The temperature in northern region on January 16, 2023, is down by 10°C compared to the previous day. (Photo: VNA)

The national weather center warned that many mountainous areas could see temperatures plunge to below 3°C, and frost and snowfall appear.

The severe cold will last through Wednesday in the northern region, with the highest temperature during daytime hovering around 14-16°C.

From Thursday to next Monday, the north will have rain in some places accompanied by light fog.

People in northern localities are expected to celebrate the Lunar New Year festival in cold weather with the highest temperatures at 17-22°C.