The National Center for Hydro-Meteorological Forecasting has issued a weather trend forecast for June 2025.
Regarding temperature trends, the average temperature across the country is generally at a level close 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.
Hot weather is likely to appear widely in the first days of June 2025 and may continue to occur in some months in the North and Central regions.
The meteorological agency warns that it is necessary to be on guard against the possibility of severe and especially severe heat in the above areas.
The increased heat waves pose a very high risk of fire and explosion in the Northern and Central regions.
Total rainfall across the country is generally approximately the average of many years in the same period; in the North Central region, the total rainfall 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 the South, the southwest monsoon tends to get stronger, so the rain is likely to increase in both area and rainfall.
On a national scale, there is a continued possibility of dangerous weather phenomena such as thunderstorms, tornadoes, lightning, hail and strong gusts of wind.
The phenomenon of heavy rain and thunderstorms, whirlwinds, and lightning can negatively affect production activities and public health. In particular, beware of localized heavy rains that can cause floods, inundation in low-lying areas and landslides in mountainous areas.
Previously, in May, the Northern region experienced widespread heavy rains on May 1, from May 10 to 11, May 15 to 20, and May 23 to 24.
The Central region will have many days of showers and thunderstorms, locally heavy to very heavy rain, including 3 widespread showers and thunderstorms on May 10 - 11 in the Thanh Hoa to Quang Ngai area; May 16 - 21 in Thanh Hoa to North Nghe An; May 24 - 25 from Thanh Hoa to Ha Tinh.
In which, Ha Tinh province experienced very heavy rain on the night of May 25 and the morning of May 26 with a total amount of 165 - 340mm.
On May 28 - 29, the South Central region will have widespread thunderstorms, some places will have heavy to very heavy rain.
The Central Highlands and the South will have many days of scattered showers and thunderstorms. In May 2025, some stations recorded the highest rainfall of the day and the total monthly rainfall exceeded historical values.
Regarding dangerous phenomena at sea, in June, the number of storms or tropical depressions in the East Sea is likely to be at a level similar to the average of many years. According to the average data of many years in June, there will be about 1.1 storms or tropical depressions in the East Sea.
Storms, tropical depressions and the southwest monsoon are likely to cause strong winds, large waves at sea and affect the activities of ships.
