According to the National Center for Hydro-Meteorological Forecasting, the cold air mass is currently moving south.
Around January 9, this strengthened cold air mass will affect the Northeast region, then affect the North Central region and some places in the Northwest and North Central regions.
From the afternoon of January 9, the area from Ha Tinh to Binh Dinh will have rain, showers and scattered thunderstorms, with heavy rain in some places.
The Meteorological Agency warns that thunderstorms may cause tornadoes, lightning and strong gusts of wind. Localized heavy rains may cause flooding in low-lying areas; flash floods in small rivers and streams; and landslides on steep slopes.
From the night of January 10, cold air continues to strengthen and affect other places in the Northwest and Central Central regions, and some places in the South Central region. Northeast winds inland gradually strengthen to level 2-3, and coastal areas to level 3-4.
The North, North Central and Central Central regions continue to be cold, with some areas in the mountainous and midland regions of the North experiencing severe cold. The lowest temperature during this cold spell in the North and North Central regions is generally 10 - 13 degrees Celsius, in the mountainous regions of the North 6 - 9 degrees Celsius, and in some high mountainous regions below 5 degrees Celsius.
Hanoi area is cold. The lowest temperature in this cold air mass is commonly 10 - 13 degrees Celsius.
The area from Quang Binh to Thua Thien Hue has the lowest temperature commonly 15 - 18 degrees Celsius.
Forecasting the temperature trend in January, the meteorological agency said the average temperature nationwide is approximately the same as the average of many years in the same period.
In January 2025, cold air tends to be more active than in December 2024. There is a high possibility that strong northeast monsoon will cause many days of severe cold in the northern provinces of Vietnam, concentrated in the period of mid-January 2025.