According to the National Center for Hydro-Meteorological Forecasting, today, January 5, this cold air mass will affect the Northeast region. From tonight, cold air will be strengthened more strongly and affect other places in the Northeast, North Central, Northwest and Central Central regions. Northeast wind level 2-3, coastal level 3-4.
The Northern region has rain, scattered light rain. The Northern and North Central regions are cold; especially the mountainous and midland areas of the Northern region are severely cold, with severe cold in some places.
The lowest temperature during the cold air wave in the Northern region, Thanh Hoa, Nghe An is commonly 10-13 degrees Celsius; Northern mountainous areas 7-10 degrees Celsius, high mountainous areas in some places below 5 degrees Celsius. Northern mountainous areas need to be wary of frost and frost.
Hanoi area has rain, scattered light rain; cold weather. The lowest temperature is commonly 10-13 degrees C.
The area from Ha Tinh to Da Nang City and the eastern provinces from Quang Ngai to Gia Lai will have rain, showers; locally there will be moderate rain, heavy rain and thunderstorms. In thunderstorms, there is a possibility of tornadoes, lightning, stone rain and strong gusts of wind.
Severe cold, severe cold, frost and frost can affect livestock, poultry and crops. People and tourists planning to go to the Northern and North Central regions should pay attention to bringing warm clothes and heat-retaining items to ensure health. Don't forget umbrellas and raincoats to prevent sudden weather changes.

Weather forecast for today, January 5th, nationwide:
City of Hanoi
Lowest temperature: 15-17 degrees C.
Highest temperature: 20-22 degrees C.
Cloudy, scattered light rain at night and early morning.Northeast wind level 2-3.Cold weather.
Northwest
Lowest temperature: 14-17 degrees C, in some places below 12 degrees C.
Highest temperature: 18-21 degrees C, in some places above 22 degrees C.
Cloudy, rain, scattered showers.Light wind.Cold weather, in some places severe cold, harmful cold.High mountainous areas should be wary of frost.
Northeast
Lowest temperature: 14-17 degrees C, mountainous areas 12-15 degrees C, in some places below 12 degrees C.
Highest temperature: 19-22 degrees C; mountainous and midland areas 15-18 degrees C.
Cloudy, scattered rain.Northeast wind level 2-3.Cold weather; especially mountainous and midland areas have places with severe cold, tomorrow turns severe cold, in some places severe cold.High mountainous areas should be wary of frost.
Thanh Hoa to Hue
Lowest temperature: 17-19 degrees C, the South 19-21 degrees C.
Highest temperature: 22-25 degrees C.
Cloudy, the North (Thanh Hoa, Nghe An) has light rain in some places; the South has rain at night, scattered showers, rain during the day, showers, locally heavy rain and thunderstorms.North to northwest wind level 2-3.The North is cold, the South is cold.
South Central Coast
Lowest temperature: 21-24 degrees C.
Highest temperature: 24-27 degrees C; the South has 27-30 degrees C.
The North is cloudy, night with rain, scattered showers, day with rain, showers, locally heavy rain and thunderstorms; the South is cloudy, with showers and thunderstorms in some places, in the late afternoon tomorrow there will be scattered showers and thunderstorms in some places.Northeast wind level 3-4.In thunderstorms, there is a possibility of tornadoes, lightning and strong gusts of wind.
Central Highlands
Lowest temperature: 14-17 degrees C.
Highest temperature: 24-27 degrees C.
Cloudy, showers and thunderstorms in some places in the evening and at night, sunny during the day.Northeast wind level 2-3.In thunderstorms, there is a possibility of tornadoes, lightning and strong gusts of wind.Cold at night and early morning.
Southern region
Lowest temperature: 21-24 degrees C, the East in some places below 20 degrees C.
Highest temperature: 29-32 degrees C, in some places above 32 degrees C.
Cloudy, showers and thunderstorms in some places at night, sunny during the day; scattered showers and thunderstorms in some places tomorrow evening.Northeast wind level 2-3.In thunderstorms, there is a possibility of tornadoes, lightning and strong gusts of wind.
Ho Chi Minh City
Lowest temperature: 21-23 degrees C.
Highest temperature: 29-32 degrees C.
Cloudy, showers and thunderstorms in some places at night, sunny during the day; scattered showers and thunderstorms in some places tomorrow evening.Northeast wind level 2-3.In thunderstorms, there is a possibility of tornadoes, lightning and strong gusts of wind.