Commenting on specific weather patterns, Deputy Head of Climate Forecasting Department, National Center for Hydro-Meteorological Forecasting Tran Thi Chuc said that in June, the number of storms and tropical depressions in the East Sea is likely to be at a level equivalent to the average of many years (the average of many years is 1.1 storms).
The average temperature across the country is generally at a level similar to the average of many years; in the Northern region, it is 0.5 - 1 degree Celsius higher than the average of many years in the same period.
Heat waves are likely to appear widely in early June and may continue to occur several times during the month in the North and Central regions. It is necessary to be on guard against the possibility of severe and especially severe heat waves in the above areas.
Total rainfall across the country is generally approximately the average of many years in the same period; in the North Central region, it is generally 15 - 25% higher than the average of many years in the same period.
"During the forecast period, the Northern and North Central regions will likely experience some widespread heavy rains. In the Central Highlands and Southern regions, the Southwest monsoon tends to become stronger, so rain is likely to increase in both area and amount. Across the country, there is a continued possibility of dangerous weather phenomena such as thunderstorms, tornadoes, lightning, hail and strong gusts of wind," Ms. Tran Thi Chuc noted.
Storms, tropical depressions and the southwest monsoon are likely to cause strong winds, large waves at sea and affect the activities of ships. Heavy rains, thunderstorms, tornadoes and lightning can negatively affect production activities and public health. Be especially careful of localized heavy rains that can cause flooding, inundation in low-lying areas and landslides in mountainous areas. In addition, hot weather is likely to increase, thus posing a very high risk of fire and explosion in the Northern and Central regions.
To proactively respond and reduce damage to the above weather patterns, hydrometeorological experts recommend that people regularly monitor forecast and warning information on the website of the National Center for Hydro-Meteorological Forecasting at nchmf.gov.vn, and provincial, municipal and regional hydrometeorological stations. At the same time, regularly update the latest hydro-meteorological forecast information on the official mass media of the Central and local levels to proactively respond. The government and functional units quickly and promptly provide disaster forecast information to the people. People need to strictly follow the instructions on disaster response and prevention of local authorities.
In May 2025, there were 2 cold air waves on May 10 and May 24.
The Northern region experienced widespread heavy rains on May 1, May 10-11, May 15-20 and May 23-24; the Central region experienced many days of showers and thunderstorms, locally heavy to very heavy rain, including 3 widespread showers and thunderstorms on May 10-11 in the area from Thanh Hoa to Quang Ngai; May 16-21 in Thanh Hoa to Northern Nghe An; May 24-25 from Thanh Hoa to Ha Tinh . In Ha Tinh province, there was very heavy rain on the night of May 25 and the morning of May 26 with a total rainfall of 165-340mm; on May 28-29, the South Central region experienced widespread thunderstorms, some places had heavy to very heavy rain.
The Central Highlands and the South experienced many days of scattered showers and thunderstorms. In May, some stations recorded the highest daily rainfall and total monthly rainfall exceeding historical values. Nationwide, there were a number of thunderstorms, tornadoes, lightning, and hail.
Along with that, widespread heat waves occurred in the Northwestern provinces, Viet Bac and some places in the Northern Delta on May 5-9 and in Son La and Hoa Binh provinces on May 20-21. The highest temperature in the Northwest at this time is commonly 37.5 - 39.5 degrees Celsius, some places are over 40 degrees Celsius such as: Song Ma 41.2 degrees Celsius, Yen Chau 40.2 degrees Celsius, Phu Yen 40.3 degrees Celsius, Mai Chau 40.4 degrees Celsius. The Central region has widespread heat waves from May 4-9 in the provinces from Nghe An - Phu Yen (from May 8-9 expanding to Thanh Hoa); from May 20-21 in the provinces from Nghe An - Quang Ngai (especially the provinces from Quang Binh to Quang Ngai, heat waves in many places occurred from May 16-23).
The highest temperature during the heat waves in the region is commonly from 35-38 degrees Celsius, some places are over 39 degrees Celsius. Especially from May 5 to 9 in Nghe An - Ha Tinh, some stations have been observed with temperatures above 40 degrees Celsius such as: Quy Chau (Nghe An) 41 degrees Celsius, Tuong Duong (Nghe An) 41.2 degrees Celsius, Huong Son (Ha Tinh) 40.5 degrees Celsius, .... The heat in the Central Highlands region gradually decreased, only scattered areas in the Northern Central Highlands in the period of May 1 - 6 with the highest daily temperature commonly at 35 - 36.5 degrees Celsius; from May 10, there is almost no heat. The widespread heat in the Southern region mainly occurs in the Southeast region with 2 periods of May 1 - 3, May 5 - 9 (except for May 8-9, NN expanded to the Southwest region); From May 10, the heat will gradually decrease. The highest temperature of the day is commonly 35-37 degrees Celsius, in some places above 37 degrees Celsius.
In May, at Bach Long Vi meteorological station, the highest daily temperature was observed at 34.8 degrees Celsius on May 22, 2025, exceeding the previously observed historical value of 34.5 degrees Celsius in May 2021.
Source: https://baohaiduong.vn/thang-6-kha-nang-xuat-hien-bao-ap-thap-nhiet-doi-412967.html
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