According to the Department of Management and Construction of Irrigation Works (Ministry of Agriculture and Environment), in May 2026, water sources in regions across the country are sufficient to supply agricultural production.
Regarding the possibility of drought and water shortage in June, representatives of the Department of Management and Construction of Irrigation Works assessed that water sources are guaranteed to supply agricultural production nationwide. However, some areas still need to closely monitor weather developments, especially in case of prolonged hot weather.
In the North Central region, the area is entering the production stage of the 2026 Summer-Autumn crop. It is forecasted that by the end of June, the storage capacity of reservoirs will reach an average of about 45% of the designed capacity. The water source in general ensures agricultural production, but the ability to meet is uneven between water-using areas.
In case of prolonged hot weather, about 5,200-8,200 hectares may be affected by drought and water shortage, mainly concentrated in Thanh Hoa, Nghe An and Quang Tri. These are areas that need to proactively plan water-saving irrigation, regulate water sources and review production areas at risk of water shortage.
In the South Central Coast - Central Highlands, water sources are also identified as ensuring agricultural production. However, the Tu Cau area, Da Nang city is still affected by saltwater intrusion. The salinity at the pumping station still fluctuates around 0.8-1.1‰, so it is necessary to continue monitoring to have appropriate operating plans. The recommended area to extend the sowing time is about 2,000 hectares.
In the Southeast region, the area is in the transition period from the dry season to the rainy season. The average storage capacity of reservoirs by the end of June is forecast to reach about 45% of the designed capacity. With the current water storage volume and forecast rainfall in the coming time, the water source is basically guaranteed to supply for the 2026 Summer-Autumn crop production. However, this Department also recommends using water sparingly and distributing reasonably to ensure sufficient supply for the entire 2026 Summer crop, especially small irrigation works, areas outside irrigation works in charge of irrigation.
In the Mekong Delta, water sources from May have tended to increase, saltwater intrusion is gradually decreasing towards seaports. It is forecast that in June, saltwater intrusion will be at a low level, equivalent to the multi-year average. At the Mekong Delta estuary, the salinity boundary of 4g/l is expected to be at 20-25km, with little possibility of affecting the water intake of irrigation works 30-40km from the sea.
Specialized agencies recommend that localities continue to monitor water source developments, operate irrigation systems reasonably, use water sparingly, especially at small projects and areas outside the irrigation area of irrigation projects. Proactively planning water regulation from the beginning of the season is considered an important solution to limit risks in agricultural production in June.
