According to the National Center for Hydro-Meteorological Forecasting, on May 8, the Southeast will have hot weather with the highest temperature of the day commonly 35 - 36 degrees Celsius, some places above 36 degrees Celsius. The lowest humidity is commonly 50 - 55%. The hot weather is about 12 - 16 hours.
The warning level of natural disaster risk due to heat is level 1. The meteorological agency noted that the forecast temperature in hot weather reports and the actual outdoor temperature may vary by 2 - 4 degrees Celsius, or even higher depending on buffer conditions such as concrete and asphalt roads.
However, from the evening and night of May 8, the South will have scattered showers and thunderstorms. From May 9, the hot weather in the Southeast will tend to decrease. It is forecasted that in the late afternoon and evening from May 10 to 12, the South will have rain, moderate rain and scattered thunderstorms, with some places having heavy rain. During thunderstorms, there is a possibility of tornadoes, lightning, hail and strong gusts of wind.
According to the National Center for Hydro-Meteorological Forecasting, the southwest monsoon in the south is likely to operate from around mid-May, causing increased showers and thunderstorms in the Central Highlands and the South.
The rainfall trend across the country in May is generally at a level close to the average of many years. In particular, the Central Central and South Central regions are 10 - 30% lower than the average of many years in the same period.
On a national scale, there is a continued possibility of dangerous weather phenomena such as thunderstorms, tornadoes, lightning, hail and strong gusts of wind.
Previously, in April 2025, the Northern region had 4 scattered rains and showers. The North Central and Central Central regions will have 3 widespread showers and thunderstorms in some places.
The Southern Central Highlands and the South during the month will have many days of scattered showers and thunderstorms. Some stations recorded the highest rainfall of the day and total monthly rainfall exceeding historical values.
