The National Center for Hydro-Meteorological Forecasting has forecast the weather trend for the seasonal season (from June - November 2026). Among them, one of the notable information is the forecast of hot sun and rainy season this year.
Peak heat from now until August
Regarding the temperature trend, according to Mr. Nguyen Duc Hoa - Deputy Head of the Climate Forecast Department, National Center for Hydro-Meteorological Forecasting, from June to August 2026, the average temperature nationwide is generally 0.5 - 1 degree Celsius higher than the multi-year average of the same period. From September to November 2026, the average temperature is 0.5 - 1.5 degrees Celsius higher, in some places higher.
From June to August, hot weather will continue to occur and increase in intensity in the Northern region, Thanh Hoa to Hue and the South Central Coast. The number of hot days is likely to occur more than the multi-year average and compared to the same period in 2025.
From around the beginning of September, the heat will gradually decrease in the Northern region and from the second half of September it will decrease in the Central region" - Mr. Hoa added.
Widespread heavy rains increase in the North from June
Regarding the rain trend, according to Mr. Hoa, from June to August 2026, periods of moderate to heavy rain will be concentrated in the Northern region, the Central Highlands, and the South.
From September to November, it is necessary to be wary of moderate to heavy rains across the country, especially in the Central region.
The rainy season in the Central region is likely to be equivalent to the multi-year average around September. However, due to the impact of El Nino, in the last months of the year, especially the main months of the rainy season such as October, November and even December, rainfall is likely to be less than the multi-year average" - Mr. Hoa emphasized.
Representatives of the Climate Forecasting Department recommend that rain tends to be less, however, it is noteworthy that localized heavy rain with very high intensity in a short time tends to increase, harsher than normal.
Not only heavy rain, but the increasing trend of other extreme natural disasters in recent years is also partly due to the impact of climate change.
The meteorological agency noted that seasonal forecasting information is trend forecasting in nature. The meteorological agency especially emphasized that in the context of climate change, weather, and climate are increasingly complicated with many dangerous and extreme forms such as heavy rain in a short time, flash floods, landslides...
Therefore, it is proposed to regularly update and integrate forecast information and hydrometeorological warnings in 1-3 day short-term bulletins, to promptly adjust production plans, appropriate response plans, especially appropriate reservoir operation plans, ensuring the safety of works and downstream areas, and at the same time ensuring safety for production and people's livelihoods.
