On January 20, according to information from Lang Son Hydrometeorological Station, a strong cold air wave is affecting the weather in localities in the province, causing widespread severe cold and frost.
The common temperature is 8-12 degrees Celsius, especially in Mau Son area, it drops to 3-5 degrees Celsius.
On the same day, the Son La Provincial Hydrometeorological Station said that cold air continues to move south and will have a clearer impact on the weather in the province in the evening and night of January 20, as well as in the coming days.
It is forecasted that on the morning of January 21, cold air will begin to affect the Southeast region of Son La province including Moc Chau, Van Ho, Bac Yen, Phu Yen, Yen Chau, then spread throughout the province.
Due to the influence of cold air, from January 21-22.1, the Southeast region of Son La province will have rain, scattered showers, and light rain in some other places.
From January 21st, the weather throughout the province will turn cold, and from January 22nd to 23rd, it will be very cold, with severe cold in some places, especially in high mountainous areas.
The lowest temperature in the wave is commonly 13-15 degrees Celsius, especially in high mountainous areas 12-14 degrees Celsius; some places such as Moc Chau, Van Ho, Bac Yen are likely to drop lower, it is necessary to be wary of frost and frost.
In Cao Bang, on January 20, the weather is generally cloudy, with light rain in some places at night and in the morning, sunny during the day, cold weather.
In the western region, the lowest temperature is 14-16 degrees C, the highest is 23-25 degrees C.
In the western and northern mountainous regions, the lowest temperature is 12-14 degrees Celsius, the highest is 18-20 degrees Celsius.
The eastern region is cold, with places experiencing severe cold, the lowest temperature is 10-12°C, the highest is 18-20 degrees C.
The southern and central areas of the province will have a lowest temperature of 12-14 degrees Celsius, and a highest of 20-22 degrees Celsius.
