The Institute of Meteorology, Hydrology and Climate Change has issued a climate forecast for the 3-month period (from May to July 2025) based on climate change analysis, the Institute's statistical model, and forecast bulletins from major climate centers around the world.
Regarding ENSO's activities, current atmospheric and ocean conditions show that the ENSO phenomenon is in a neutral state. ENSO is forecast to maintain this state in the period of May - July 2025, with a probability of about 80 - 85%.
The trend of temperature from May to July is approximately to higher than the average of many years in the North, approximately the average for many years in the Central, Central Highlands and Southern. Hot sun forecasts occur on a large scale in the North and Central. The intensity of heat is likely to be less intense than 2024. During the dry season 2025, drought may occur in the Central, but the level is not serious.
The total rainfall for 3 months from May - 7.2025 is forecasted to approximately the average of many years nationwide. The summer monsoon in the South and the Central Highlands is likely to start approximately the average time for many years. Summer monsoon intensity is expected to be approximately an average of years. The beginning of the rainy season in the South and the Central Highlands is also forecasted to approximately the average for many years.
The beginning of the storm season is expected to be approximately an average of many years, around June. The tropical vortex operating in the South China Sea and affecting Vietnam in 2025 is likely to be approximately an average of years. According to average data for many years, there are about 12-13 storms in the South China Sea or tropical depression, of which 6-7 attacks affect Vietnam.
In the 3 months from May to July, the number of tropical cyclones is likely to be approximately the average of many years. According to the average data of many years, there are about 3 - 4 storms or tropical depressions in the East Sea, of which 1 - 2 affect Vietnam.
