According to the National Center for Hydro-Meteorological Forecasting, on April 21, Hoa Binh area, from Nghe An to Phu Yen, the Central Highlands and the South will have hot weather, some places will have severe heat with the highest temperature commonly 35-37 degrees Celsius, some places above 37 degrees such as: Mai Chau (Hoa Binh) 38.3°C, Tuong Duong (Nghe An) 39.3°C, Tuyen Hoa (Quang Binh) 37.2°C, Ba To (Quang Ngai) 37.1°C, Ayunpa (Gia Lai) 37.7°C, Dong Phu (Binh Phuoc) 37.2°C. The lowest relative humidity is commonly 45-55%.
On September 22-23, the Northern region will have hot weather, some places will have severe heat with the highest temperature commonly 35-37°C, some places above 38°C; the lowest relatively humidity commonly 45-50%.
The area from Thanh Hoa to Phu Yen will have hot weather, some places will have severe heat with the highest temperature commonly 36-38°C, some places will be over 38°C; the lowest relatively humidity is commonly 45-50%.
The Central Highlands and the South continue to have hot weather with the highest temperature commonly 35-36°C, some places above 36°C; the lowest humidity commonly 50-55%.
The felt outside temperature can be 2-4°C higher, or even higher, due to the influence of cushioning such as concrete and asphalt.
People and tourists need to be on guard against fire and explosion, proactively take measures to prevent dehydration, exhaustion, and stroke due to heat stroke when exposed to high temperatures for a long time.

Weather forecast for tomorrow in Hanoi
Lowest temperature: 25-27°C
Highest temperature: 33-35°C, some places above 35°C
Cloudy, showers and thunderstorms in some places in the evening and at night; hot during the day. Male wind level 2-3. During thunderstorms, there is a possibility of tornadoes, lightning, hail and strong gusts of wind.
Weather forecast for tomorrow in the Northwest region
Lowest temperature: 24-27°C, some places below 23°C
Highest temperature: 34-37°C, some places above 38°C
Cloudy, showers and thunderstorms in some places in the evening and at night; hot and sunny during the day, some places are very hot. Light wind. During thunderstorms, there is a possibility of tornadoes, lightning, hail and strong gusts of wind.
Weather forecast for tomorrow in the Northeast region
Lowest temperature: 23-26°C
Highest temperature: 33-36°C, some places above 37°C
Cloudy, showers and thunderstorms in some places in the evening and at night; hot and sunny during the day, some places are very hot. Southeast to south wind level 2-3. During thunderstorms, there is a possibility of tornadoes, lightning, hail and strong gusts of wind.
Weather forecast for tomorrow in the area from Thanh Hoa to Hue
Lowest temperature: 24-27°C
Highest temperature: 35-38°C, some places above 38°C
Cloudy, showers and thunderstorms in some places in the evening and at night; hot and sunny during the day, some places are very hot. South to southwest wind level 2-3. During thunderstorms, there is a possibility of tornadoes, lightning, hail and strong gusts of wind.
Weather forecast for tomorrow in the area from Da Nang to Binh Thuan
Lowest temperature: 24-27°C
Highest temperature: North 34-37°C, some places above 38°C; South 31-34°C, some places above 34°C
Cloudy, showers and thunderstorms in some places in the evening and at night; sunny during the day, especially in the North, there is hot weather, some places are very hot. Male wind level 2-3. During thunderstorms, there is a possibility of tornadoes, lightning, hail and strong gusts of wind.
Weather forecast for tomorrow in the Central Highlands
Lowest temperature: 21-24°C
Highest temperature: 33-36°C
Cloudy, showers and thunderstorms in some places in the evening and at night; hot during the day. Light wind. During thunderstorms, there is a possibility of tornadoes, lightning, hail and strong gusts of wind.
Weather forecast for tomorrow in the Southern region
Lowest temperature: 25-28°C
Highest temperature: 33-36°C
Cloudy, showers and thunderstorms in some places in the evening and at night; hot during the day. Light wind. During thunderstorms, there is a possibility of tornadoes, lightning, hail and strong gusts of wind.