The forecast for December 17th, both day and night, indicates continued rain, moderate rain, and heavy rain in some areas, with rainfall generally ranging from 10–30mm, and exceeding 70mm in some localized areas. Thunderstorms pose a risk of tornadoes, lightning, hail, and strong gusts of wind. Localized heavy rainfall may cause flash floods on small rivers and streams, landslides on slopes, and flooding in low-lying areas.

At sea, the Huyen Tran station is currently recording strong northeasterly winds of force 6, gusting to force 7; the Phu Quy station is recording wind gusts of force 7.
Forecast for day and night of December 17th: In the northern South China Sea (including the Hoang Sa archipelago), strong northeasterly winds of force 6 are expected, with occasional winds of force 6-7 in the east, gusting to force 8-9; rough seas with waves 3-5m high.
The sea area from Khanh Hoa to Ca Mau and the western sea area of the South China Sea (including the western sea area of the Spratly Islands) will experience northeasterly winds of force 6, gusting to force 7-8; rough seas with waves 2-3m high.
In the northern part of the central South China Sea, strong northeasterly winds of force 6, gusting to force 7-8, will cause rough seas with waves 2-4m high. In the Gulf of Tonkin and the sea area from southern Quang Tri to Dak Lak , northeasterly winds of force 5, sometimes force 6, gusting to force 7-8, will cause rough seas with waves 2-3.5m high.
Additionally, the southern South China Sea (including the Spratly Islands) will experience scattered showers and thunderstorms; tornadoes and strong gusts of wind are possible during thunderstorms.
Weather forecast for areas across the country:
Hanoi, the capital city, will be cloudy with scattered rain. Light winds. Cold weather. Lowest temperature 17-19 degrees Celsius. Highest temperature 21-23 degrees Celsius.
The provinces in the Northwest region will be cloudy with scattered rain and showers, and thunderstorms in some areas. Light winds. Cold weather, with some areas experiencing intense cold. During thunderstorms, there is a possibility of tornadoes, lightning, and strong gusts of wind. The lowest temperature will be 15-18 degrees Celsius, with some areas below 14 degrees Celsius. The highest temperature will be 20-23 degrees Celsius, with some areas above 23 degrees Celsius.
The northeastern region of Vietnam will be cloudy with scattered rain and showers, and thunderstorms in some areas. Northeast winds will be at level 2-3. It will be cold, with intensely cold temperatures in some mountainous areas. During thunderstorms, there is a possibility of tornadoes, lightning, and strong gusts of wind. The lowest temperature will be 16-19 degrees Celsius, with some mountainous areas experiencing temperatures below 16 degrees Celsius. The highest temperature will be 21-24 degrees Celsius.
The provinces from Thanh Hoa to Hue will be mostly cloudy, with scattered rain and showers in the north, and thunderstorms in some areas; the south will experience rain, moderate rain, and locally heavy rain and thunderstorms. Winds will be from the north to northwest at speeds of 2-3. The north will be cold, while the south will be cold during the day and night. There is a possibility of tornadoes, lightning, and strong gusts of wind during thunderstorms. The lowest temperature will be 17-20°C, and the highest temperature will be 21-24°C.
In the South Central Coastal region, the northern part will be mostly cloudy with rain, moderate rain, and locally heavy rain and thunderstorms; the southern part will be cloudy with scattered showers and thunderstorms. Northeast winds will be at level 2-3. There is a possibility of tornadoes, lightning, and strong gusts of wind during thunderstorms. Minimum temperatures will be 21-23°C in the north and 23-25°C in the south. Maximum temperatures will be 25-28°C in the north and 28-31°C in the south.
The Central Highlands will be cloudy with sunny days and scattered showers and thunderstorms at night. Northeast winds will be at level 2-3. The lowest temperature will be 17-20 degrees Celsius. The highest temperature will be 26-29 degrees Celsius.
Southern Vietnam will be cloudy with sunny days, and scattered showers and thunderstorms at night. Northeast winds will be at level 2-3. The lowest temperature will be 22-25 degrees Celsius. The highest temperature will be 30-33 degrees Celsius, with some areas exceeding 33 degrees Celsius.
Ho Chi Minh City will be cloudy with sunny periods during the day and no rain at night. Northeast winds will be at level 2-3. The lowest temperature will be 23-25 degrees Celsius. The highest temperature will be 30-33 degrees Celsius.
Source: https://baotintuc.vn/xa-hoi/thoi-tiet-ngay-1712-mua-dong-gia-tang-tu-quang-tri-den-dak-lak-bien-dong-manh-20251217055456742.htm






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