According to the National Center for Hydro-Meteorological Forecasting, from early tomorrow morning (February 23), the cold air mass will affect the Northeast region, then affect the North Central, Northwest and Central Central regions.
In the North, from the night of February 23, it will be very cold, with some mountainous areas experiencing severe cold; in the North Central region, it will be cold, with some places experiencing severe cold in the North. The lowest temperature in this cold air mass in the North is generally from 11-14 degrees Celsius, in high mountainous areas below 7 degrees Celsius; in the North Central region, it is generally 13-16 degrees Celsius; in the Central Central region, it is generally 17-20 degrees Celsius.
The Hanoi area will be very cold from the night of February 23. The lowest temperature in this cold air mass is generally 12-14 degrees Celsius.
Due to the influence of the strengthening cold air combined with the strong wind in the high-altitude West wind zone on February 23-24, the Northern and North Central regions will have rain and light rain.
From Da Nang to Khanh Hoa, there will be rain, moderate rain, locally heavy rain to very heavy rain and thunderstorms with rainfall of 20-40mm, some places over 100mm. The Southern Central Highlands and the South will have scattered showers and thunderstorms, locally moderate rain, heavy rain (rain concentrated in the late afternoon and evening) with rainfall of 10-30mm, some places over 60mm.
People and tourists need to be on guard during thunderstorms with the possibility of tornadoes, lightning and strong gusts of wind.

Hanoi
Lowest temperature: 16-18 degrees Celsius Highest temperature: 18-20 degrees Celsius
Cloudy, with rain, light rain. Light wind, from early morning the northeast wind gradually strengthens to level 3-4. Cold weather.
Northwest
Lowest temperature: 14-17 degrees Celsius, some places below 14 degrees Celsius Highest temperature: 16-19 degrees Celsius; some places in the Northwest region are above 19 degrees Celsius
Cloudy, with rain, light rain; Lai Chau - Dien Bien has scattered showers and thunderstorms. Light wind. Cold weather, some places are very cold. During thunderstorms, there is a possibility of tornadoes, lightning, hail and strong gusts of wind.
Northeast
Lowest temperature: 14-17 degrees Celsius, some places below 13 degrees Celsius Highest temperature: 17-20 degrees Celsius
Cloudy, with rain, light rain. Light wind, from early morning the northeast wind gradually strengthens to level 3-4, coastal areas level 4-5, some places have gusts of level 6. Cold weather, some mountainous areas are very cold.
Thanh Hoa to Hue
Lowest temperature: North 16-19 degrees Celsius; South 19-22 degrees Celsius Highest temperature: North 18-21 degrees Celsius; South 21-24 degrees Celsius
Cloudy, with rain, showers. Light wind; from tomorrow, the north to northwest wind will be level 3-4, coastal areas will be level 4-5, and some places will have gusts of level 6. Cold in the North.
Da Nang to Binh Thuan
Lowest temperature: 21-24 degrees Celsius Highest temperature: 25-28 degrees Celsius, some places in the South are above 28 degrees Celsius
The North is cloudy, with rain and showers at night, some places have moderate rain, heavy rain and thunderstorms; the South has scattered showers and thunderstorms at night, sunny during the day. Northeast wind level 2-3. During thunderstorms, there is a possibility of tornadoes, lightning and strong gusts of wind.
Central Highlands
Lowest temperature: 18-21 degrees Celsius, some places below 18 degrees Celsius Highest temperature: 26-29 degrees Celsius
Cloudy, with showers and thunderstorms in some places, especially in the South, cloudy, with scattered showers and thunderstorms, locally moderate to heavy rain. Northeast to east wind level 2-3. During thunderstorms, there is a possibility of tornadoes, lightning and strong gusts of wind.
Southern region
Lowest temperature: 23-26 degrees Celsius Highest temperature: 29-32 degrees Celsius
Cloudy, scattered showers and thunderstorms, locally moderate to heavy rain. Northeast to east wind level 2-3. During thunderstorms, there is a possibility of tornadoes, lightning and strong gusts of wind.