In the past 24 hours, the Southeast region experienced widespread hot weather, while the Southwest region experienced localized hot weather in some places. The highest temperature recorded in Bien Hoa was 37 degrees Celsius, Tay Ninh 36.6 degrees Celsius. Relatively low humidity, fluctuating from 40-50%.
In the next 24-48 hours, the hot low pressure from the West will continue to expand to the Southeast, the low pressure trough with the Northwest - Southeast axis through the North to the Southeast of the East Sea will continue to be maintained. Weak winds in the sea area of Ho Chi Minh City and the South. Above, the subtropical high pressure through the South Central Coast and the South encroaching west is quite active.
Therefore, hot weather continues to be maintained on a large scale in the Southeast region, with intense hot weather in some places; localized hot weather continues to appear in the Southwest region. The highest temperature is commonly from 35 - 37 degrees Celsius, the lowest humidity is from 40-50%. The hot weather concentrates in the period from 11-16 am each day. It is forecast that this hot spell is likely to last until around May 27.
According to the Southern Regional Hydrometeorological Station, climate indicators currently show that ENSO is still in a neutral state in May. However, many major climate forecasting centers around the world believe that the transition to El Nino this year is quite fast, likely to start from June with average intensity, lasting from June to August 2026 and gradually strengthening in the last months of the year.
In the early rainy season, El Nino has not significantly impacted the activity of the Southwest monsoon - the main factor dominating the weather in the South. Conversely, many other climatic conditions are promoting the Southwest monsoon to operate more strongly in late May and June, causing thunderstorms to increase. Total rainfall is forecast to be approximately or higher than the multi-year average.
In the period of July-August, when El Nino operates stably with moderate intensity, the weather in the South may show clear opposite developments. Rainfall reductions in the rainy season are forecast to occur more often, the number of rainy days is likely lower than the multi-year average. However, extreme heavy rain still tends to increase, continuing to be accompanied by the risk of tornadoes, lightning and strong gusts of wind.
