According to weather news from the Southern Hydrometeorological Station, from 24 to 48 hours, a weak cold air wave will strengthen and spill into the North of our country. At sea, Northeast winds are operating with moderate to strong intensity, especially in the Southeast sea area.
Due to the low intensity, this cold air wave did not cause the temperature in the North to drop too deeply, but the cold state still lasted for many days.
The period from January 30 - January 31, cold air continues to be strengthened. This phase is likely to cause scattered rain in the Northern and North Central regions, mainly concentrated in the late afternoon and night of January 30 to the end of January 31, then tends to weaken and gradually deviate to the East.

Weather forecast for regions across the country
From now until January 27, the North and North Central regions will have light rain in some places, early morning fog and light fog will appear. The Northeast region will have rain, scattered light rain. It will be cold, mountainous and midland areas will have severe cold in some places.
The area from Quang Tri to Da Nang city and the east of the provinces from Quang Ngai to Gia Lai will have light rain in some places. At night and early morning, the north of these areas will be cold.
Other areas across the country will experience light rain in some places in the late afternoon and night, sunny during the day. Especially in the Central Highlands region, it will be cold at night and early morning.
From the night of January 27th to February 4th, the North and North Central regions maintain a state of light rain in some places, early morning fog and light fog appear in some places. Especially around the late afternoon and night of January 30th - 31st, scattered rain is likely to increase. Weather is generally cold, the Northern mountainous region is in some places very cold.
The area from Quang Tri to Da Nang city and the eastern provinces from Quang Ngai to Gia Lai will have light rain in some places. In the periods of January 28 - 29, and January 31 - 3.2, there is a possibility of rain, showers, and localized thunderstorms. It will be cold at night and early morning.
Other areas maintain the pattern of night showers in some places, sunny days. In thunderstorms, people need to be wary of dangerous weather phenomena such as tornadoes, lightning and strong gusts of wind.
Hanoi weather forecast for the next 10 days
Today, Hanoi is cloudy, with light rain, drizzle and scattered fog. Light wind, cold weather. Lowest temperature from 14 to 16 degrees C, highest from 17 to 19 degrees C.
On January 27, light rain continued, the temperature fluctuated in the range of 15 to 20 degrees Celsius, cold weather.
In the two days of January 28 - 29, the weather will turn dry, cloudy, no rain. The daytime temperature will increase slightly, the highest is about 20 to 21 degrees C, the lowest at night is 14 to 15 degrees C.
On January 30, it will be cloudy, no rain, the highest temperature is about 22 degrees C, the lowest is about 17 degrees C. On January 31, affected by increased cold air, Hanoi will experience light rain again. The daytime temperature will decrease to about 19 degrees C, and will remain around 17 degrees C at night.
On February 1st, cold air will have a clearer impact, the temperature will decrease, the highest will be about 17 degrees Celsius, the lowest will be about 14 degrees Celsius. Cold weather, little rain.
On February 2nd, the weather will be cloudy, no rain, cold. The temperature during the day will increase slightly to about 19 degrees Celsius, and at night about 14 degrees Celsius.
In the last two days of the forecast period (February 3rd - February 4th), the temperature will gradually increase, the weather will be warmer but still cloudy, no sunshine. The highest temperature is commonly around 22 degrees Celsius, the lowest is about 17 degrees Celsius.
Before the dien bien of increased cold air, functional agencies recommend that people and tourists actively follow weather forecasts to have appropriate living and travel plans. In conditions of cold rain, fog and prolonged drizzle, it is necessary to pay special attention to keeping the body warm, especially for the elderly and young children.
Tourists when traveling and sightseeing in midland and mountainous areas during this time need to pay attention to slipperiness, limit travel in the early morning and at night when visibility is reduced due to fog. Vehicles need to slow down and ensure safety when traveling in unfavorable weather conditions.