According to the National Centre for Hydro-meteorological Forecasting, from Monday evening to early this morning, northern and northern central localities had rainfall of 10-50mm.
Ha Giang has faced the serious flooding following heavy rains: Photo by Tours Manh
From this afternoon, some northern localities would have sunshine with a temperature of 34 degrees centigrade.
From Wednesday, the northern region would witness the first hot wave of June with northeastern areas affected the most with temperatures of more than 38 degrees centigrade.
The hot weather would last until June 15 and be followed by rains.
Torrential rains have severely hit many northern mountainous areas, particularly in Ha Giang, Cao Bang, Yen Bai, Bac Giang, Quang Ninh and Haiphong.
In Ha Giang, three people have died in the flood, while nearly 2,400 houses were submerged.