According to the National Hydro Meteorological Forecasting Center, the heat wave prevailing across the central region for the last three days has now become more widespread in the northern region to prolong for the next four to five days.
On Thursday, the northern and central provinces continued to suffer under hot and dry conditions with temperatures reaching 35-37 degrees Celsius.
Mercury touched 37-38 degrees Celsius in several parts of provinces from Thanh Hoa to Thua Thien-Hue.
The heat wave was caused by a hot low pressure zone from the west, which will continue to prevail over the next four to five days.
By July 17 or 18, a low pressure zone will bring in some rain in the northern region and a bit of respite in the central region.
Weather in the southern region will continue to be sunny and part cloudy during daytime.
In related news, the Directorate for Roads in Vietnam has ordered transport departments to implement measures to ensure traffic safety during the flood season this year.
All departments have been asked to repair potholes and cracks on the road surface, dredge drains and remove blockages to allow for better flow of water.
They should also regularly examine safety of ferries, damaged roads and weak or temporary bridges.
Contractors have been asked to speed up progress of ongoing traffic projects or those planned to begin this year.