The whole region and some central provinces will be affected from Wednesday
Many provinces in the country are going through one of the toughest winters in history
Maximum temperatures to drop to 18 degrees Celsius in the plains and 16 degrees in the mountains
Sa Pa and Mau Son, two popular tourist spots, may see temperature fall to 10-12 degrees Celsius.
The temperatures in southern Vietnam on Thursday dropped by 2-3 degrees Celsius to reach the lowest level in this dry season...