According to the National Center for Hydro-Meteorological Forecasting, on May 25, the cold air has strengthened and affected other places in the Northwest and some places in the Central Central region.
Inland, the Northeast wind is strong at level 2-3, coastal areas at level 3.
The North and North Central regions will be cool, the mountainous areas in the North will be cold at night and early morning. Cloudy weather, scattered showers and thunderstorms.
The lowest temperature in this cold air mass in the North and North Central regions will generally be from 19-22 degrees Celsius, with some mountainous areas in the North experiencing cold weather below 19 degrees Celsius.
Hanoi weather forecast is cool. During the day, there will be scattered showers, thunderstorms in some places, moderate rain, heavy rain and scattered thunderstorms at night. The lowest temperature in this cold air mass is generally 20-22 degrees Celsius.

In the Gulf of Tonkin, the northern sea area of the North East Sea will have strong northeast winds of level 6, gusting to level 7, rough seas. Waves are 1.0-3.0m high. At night the wind gradually decreases. Strong winds and large waves affect ships and sea activities.
Weather forecast for the Ha Tinh - Quang Binh area is rain, moderate rain, some places have heavy rain and thunderstorms.
Thunderstorms accompanied by tornadoes, lightning, hail and strong gusts of wind. Risk of flooding in low-lying areas, urban areas, and industrial parks. Risk of flash floods and landslides on steep slopes and small streams.
People and tourists going out should pay attention to bring umbrellas and raincoats to prevent sudden changes in weather. Bring warm clothes and thermal clothing when planning to travel to the mountainous areas of the North during this time.