The forecasting agency said that on May 4, in the area from Nghe An to Quang Ngai, there was hot weather, some places were very hot. The highest temperature is generally 35-37 degrees Celsius, some places are above 37 degrees Celsius such as: Quy Hop (Nghe An) 38 degrees Celsius, Huong Son (Ha Tinh) 37.2 degrees Celsius, Dong Ha (Quang Tri) 37.5 degrees Celsius... The lowest relative humidity is generally 55-60%.
It is forecasted that on May 5 and 6, in the Northern Delta and Hoa Binh, there will be hot weather with the highest temperature commonly 35-36 degrees Celsius, some places above 36 degrees Celsius; the lowest relatively humidity commonly 55-60%. The hot time is from 12-15 hours.

In the area from Thanh Hoa to Phu Yen, there will be hot weather, some places will be very hot with the highest temperature commonly 35-37 degrees Celsius, some places will be over 38 degrees Celsius; the lowest relatively humidity is commonly 50-55%. The hot time is from 11-16 hours.
The hot weather in the North and Central regions is forecast to last until around May 9, then gradually calm down. Warning level 1 of natural disaster risk due to heat.
Due to the influence of hot weather, some places have severe heat combined with low humidity in the air, so there is a risk of fire and explosion. In addition, hot weather can also cause dehydration, exhaustion, and sudden heat stroke in the human body when exposed to high temperatures for a long time.
People and tourists should limit going out in the middle of the season, when the sun is hot at peak times. In addition, you should bring an umbrella and wear sunscreen when going out. Provide enough water for the body to avoid exhaustion, ensure health when traveling, participating in outdoor activities.