According to the National Center for Hydro-Meteorological Forecasting, the weather forecast from the night of April 20 to April 22 in the North is that there will be showers and thunderstorms in some places in the evening and at night, and hot days.
The area from Thanh Hoa to Phu Yen will have showers and thunderstorms in some places in the evening and at night; hot sunny days, some places with severe heat.
Other areas will have showers and thunderstorms in some places in the evening and at night; sunny during the day, some places will be hot, especially the Central Highlands and the South will have hot weather.
The hot weather will continue until about 24-25.4, when a long period of rain will occur in the North and Central regions, and the temperature will decrease slightly.
People and tourists need to be on guard against sudden changes in weather. Limit going out during hot weather.

Weather forecast for Hanoi tomorrow
Lowest temperature: 24-26 degrees Celsius.
Highest temperature: 35-37 degrees Celsius.
Cloudy, showers and thunderstorms in some places in the evening and at night; hot sunny during the day. 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 the Northwest tomorrow
Lowest temperature: 23-26 degrees Celsius, some places below 23 degrees Celsius.
Highest temperature: 34-37 degrees Celsius, some places above 38 degrees Celsius.
Cloudy, showers and thunderstorms in some places in the evening and at night; hot 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
Lowest temperature: 23-26 degrees Celsius.
Highest temperature: 33-36 degrees Celsius, some places above 37 degrees Celsius.
Cloudy, showers and thunderstorms in some places in the evening and at night; hot 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 from Thanh Hoa to Hue
Lowest temperature: 24-27 degrees Celsius.
Highest temperature: 34-37 degrees Celsius, some places above 38 degrees Celsius.
Cloudy, showers and thunderstorms in some places in the evening and at night; hot 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 Da Nang to Binh Thuan
Lowest temperature: 23-26 degrees Celsius.
Highest temperature: North 34-37 degrees Celsius, some places above 37 degrees Celsius, South 32-34 degrees Celsius, some places above 34 degrees Celsius.
Cloudy, showers and thunderstorms in some places in the evening and at night; sunny during the day, some places are hot, especially in the North, hot 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 Central Highlands
Lowest temperature: 22-25 degrees Celsius.
Highest temperature: 32-35 degrees Celsius, some places above 35 degrees Celsius.
Cloudy, showers and thunderstorms in some places in the evening and at night; hot sunny 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 South
Lowest temperature: 25-28 degrees Celsius.
Highest temperature: 32-35 degrees Celsius, some places above 35 degrees Celsius.
Cloudy, showers and thunderstorms in some places in the evening and at night; hot sunny during the day. Light wind. During thunderstorms, there is a possibility of tornadoes, lightning, hail and strong gusts of wind.