The North has fog and cold weather.

On the day and night of December 21, the Northern region will be sunny during the day, no rain at night, and some places will have fog in the early morning; light wind. Cold in the early morning and at night; the Southern region will be sunny during the day, with showers and thunderstorms in some places in the late afternoon and at night.

According to the National Center for Hydro-Meteorological Forecasting, on December 21, the southern low pressure trough with an axis at about 4-7 degrees North latitude connected to the low pressure area at 1 a.m. located at about 3.9-4.9 degrees North latitude; 110.8-111.8 degrees East longitude, so on the day and night of December 21, the South East Sea area (including the sea area of ​​Truong Sa) will have scattered showers and thunderstorms; in thunderstorms there is a possibility of tornadoes and strong gusts of wind of level 7-8.

Warning, day and night of December 22, in the North East Sea area (including the Hoang Sa sea area), Northeast wind level 7, gust level 8-9; rough sea; waves 4-6m high.

The sea area from Quang Ngai to Ca Mau , the central East Sea area, the western sea area of ​​the southern East Sea area (including the western sea area of ​​Truong Sa area) has strong northeast wind level 6, sometimes level 7, gusting to level 8-9; rough seas; waves 3-5m high.

From Quang Tri to Quang Nam, strong northeast wind level 6, gust level 8; rough sea; waves 2-4m high.

In the Gulf of Tonkin, the Northeast wind is strong at level 5, sometimes at level 6, gusting to level 7-8; rough seas; waves 1-2.5m high. The risk of natural disasters due to strong winds at sea is level 2. All vessels operating in the above areas are at high risk of being affected by tornadoes, strong winds and big waves.

Weather forecast for regions during the day and night of December 21: Northwest: - Sunny day, no rain at night, early morning fog in some places; light wind. Cold early morning and night.

- Lowest temperature 18-21 degrees Celsius, some places below 17 degrees Celsius.

- Highest temperature 26-29 degrees Celsius, some places above 29 degrees Celsius.

Northeast: Sunny day, no rain at night, some places have fog in the early morning. Northeast wind level 2-3. Cold early morning and night.

- Lowest temperature 18-21 degrees Celsius, mountainous areas below 17 degrees Celsius.

- Highest temperature 26-29 degrees Celsius, some places above 29 degrees Celsius.

Hanoi Capital: Sunny day, no rain at night. Northeast wind level 2-3. Cold early morning and night.

- Lowest temperature 19-21 degrees Celsius.

- Highest temperature 27-29 degrees Celsius.

Provinces from Thanh Hoa to Thua Thien-Hue: - The North (Thanh Hoa-Nghe An) is cloudy, with rain in some places; the South is cloudy, with rain, showers, and locally heavy rain in some places. In Thua Thien-Hue, there will be moderate rain, heavy rain, and thunderstorms at night. North to Northwest wind level 2-3. In the North, it will be cold in the morning and at night.

- Lowest temperature 20-23 degrees Celsius.

- Highest temperature 24-27 degrees Celsius, some places above 27 degrees Celsius.

Provinces and cities from Da Nang to Binh Thuan, North (Da Nang to Binh Dinh): - Cloudy, rain, showers and thunderstorms during the day, locally heavy rain, moderate rain, heavy rain, very heavy rain and thunderstorms at night; in the South, cloudy, showers and thunderstorms in some places; Northeast wind level 2-3.

- Lowest temperature 23-26 degrees Celsius.

- Highest temperature 26-29 degrees Celsius, South 30-33 degrees Celsius.

Central Highlands: Sunny day, showers and thunderstorms in some places in the evening and at night. Northeast wind level 2-3.

- Lowest temperature 19-22 degrees Celsius.

- Highest temperature 26-29 degrees Celsius, some places above 29 degrees Celsius.

Southern region: - Sunny day, showers and thunderstorms in some places in the late afternoon and night. Northeast wind level 2-3.

- Lowest temperature 24-27 degrees Celsius.

- Highest temperature 31-34 degrees Celsius.

Source: VNA

Source: https://baophutho.vn/thoi-weather-ngay-va-dem-21-12-bac-bo-co-suong-mu-troi-ret-224973.htm