On January 15, according to Lang Son Provincial Hydrometeorological Station, the weather in the area is generally sunny and dry, no rain; cold at night and early morning. Temperatures fluctuate from 9-23 degrees C, especially Mau Son area 9-14 degrees C.
In Son La, the weather is affected by weakening continental cold high pressure combined with the upper wind differential field; around January 15, cold air is likely to strengthen weakly again.
The whole province is generally cloudy, no rain, light fog appears in some places in the early morning, cold weather; highlands have places with severe cold. Sunny during the day, East to Southeast wind level 2.
The lowest temperature in Son La is commonly 11-15 degrees Celsius, the highest is 19-24 degrees Celsius.
Highland districts such as Moc Chau and Van Ho have the lowest temperature of about 11 degrees Celsius, very cold weather, early morning fog; sunny in the afternoon.
The central and low-lying areas such as Son La City (To Hieu), Quynh Nhai, Thuan Chau have the highest temperature of 20-22 degrees Celsius, cold at night and early morning.
The common air humidity is 50-98%, creating conditions for localized fog formation in the early morning, especially in high mountainous areas, which can reduce visibility and affect traffic.
In Cao Bang, the weather is cloudy, no rain at night, scattered fog in the early morning, intermittent sunshine during the day, severe cold weather. The lowest temperature is commonly 9-14 degrees C, the highest is 19-23 degrees C, depending on the area.
The meteorological agency warns that local cold and intense cold may affect people's health, especially the elderly and young children, and at the same time affect livestock and agricultural production in highland areas.
People need to proactively keep warm and be careful when moving in the early morning when there is fog.