Hot weather is forecast to hit most regions in Vietnam this week, especially northern and central provinces, where temperatures can top 40 degrees Celsius.
A heatwave began affecting northern, north-central, and central localities on Monday, raising the highest mercury in the regions to between 35 and 37 degrees Celsius, and up to 38 degrees Celsius in several areas, according to the National Center for Hydro-meteorological Forecasting.
The hottest times of the day are around 11:00 am to 5:00 pm, while humidity is estimated at 35-50 percent.
Mercury in the regions will increase slightly on Tuesday.
From May 7 to 10, the heatwave is expected to intensify, with average highs reaching 37-40 degrees Celsius.
The heat can be felt from 10:00 am to 6:00 pm, while humidity will be about 30-45 percent.
The Central Highlands and southern regions will also be impacted by the hot weather from Tuesday until the end of the week, with the highest temperature amounting to 35-37 degrees Celsius.
The hottest times are between 11:00 am and 4:00 pm.
In Hanoi, the temperature will range from 24 degrees Celsius at its lowest to 37 degrees Celsius at its highest on Tuesday.
Average highs in the capital will reach 37 degrees Celsius on Wednesday and up to 40 degrees Celsius on the remaining days of the week.
In Ho Chi Minh City, the highest mercury will be about 35 degrees Celsius, while UV Index is at a harmful level.
Local residents are advised against going outside if not necessary.