The North is recording a clear increase in temperature. In fact, yesterday (September 19), the temperature was observed in the mountainous and midland areas of the North at some places above 39 degrees Celsius such as: Yen Chau (Son La) 39.3 degrees Celsius, Bao Lac (Cao Bang) 39.2 degrees Celsius... Information on the forecast of hot weather is waiting for people to pay attention.
The reporter had an interview with Mr. Nguyen Van Huong - Head of Weather Forecast Department, National Center for Hydro-Meteorological Forecasting on notable weather forecasts in the coming days.

Sir, what is the forecast for the development of hot weather and temperature in areas across the country in the coming days?
- It is forecasted that on April 20, the mountainous and midland areas of the North will have hot weather, some places will have severe heat with the highest temperature commonly 35 - 37 degrees Celsius, some places will be over 38 degrees Celsius. The Northern Delta will have local hot weather with the highest temperature in some places above 35 degrees Celsius.
On April 21, the hot weather will spread in the North with the highest temperature commonly 35 - 37 degrees Celsius, some places above 38 degrees Celsius.
The area from Thanh Hoa to Phu Yen from April 20 to 21 is forecast to have hot weather, some places are very hot with the highest temperature commonly 35 - 38 degrees Celsius, some places are over 38 degrees Celsius.
The Central Highlands and the South will have hot weather with the highest temperature commonly 35 - 36 degrees Celsius, some places above 36 degrees Celsius.
How long is the forecast for this widespread heat wave and will there be cooling rain in the near future, sir?
- It is forecasted that the hot weather in the North will last until around April 22. From April 23, due to the impact of cold air, the North is likely to experience showers and thunderstorms, with some places having heavy rain.
Also from around April 23, the heat in the area from Thanh Hoa to Hue is likely to gradually subside. The heat wave in the Southern region is likely to last for many days to come.
Although it is only the first hot season, there are many places above 39 degrees Celsius, what recommendations do you have for people?
- This is the first widespread hot spell of 2025 in the whole of the North, Central and South. In hot weather forecasts, we always pay attention to people, the forecast temperature in hot weather reports and the actual outdoor temperature can range from 2 - 4 degrees Celsius, which can even be higher depending on buffer conditions such as concrete and asphalt roads.
During hot days, people need to prevent dehydration, exhaustion, and heatstroke on the human body when exposed to high temperatures for a long time.
As for forest fire warnings, the large day-night temperature range (10 - 14 degrees Celsius) in mountainous areas, causing cracks in dry vegetation, and the risk of forest fires in the entire Northern, Central and Southern regions.
The southwest wind tends to gradually strengthen in the Central region, increasing the possibility of fire spreading due to the wind blowing away the fire.
Sincerely thank you!