It will be as hot as 36 degrees Celsius in southern Vietnam this week while high salinity is forecast to harm freshwater plants, according to the southern weather service.
The weather will be dry given the high temperature and low humidity in the air, the southern branch of the National Center for Hydro-Meteorological Forecasting said on Sunday.
Temperatures will hover around 35 degrees Celsius in the southeastern and southwestern parts of the country, with mercury even hitting 36 degrees Celsius in Binh Phuoc, Dong Nai, and Tay Ninh.
It will be as hot as 35 degrees Celsius in Ho Chi Minh City, Long An, Can Tho, and Vinh Long.
The weather is forecast to be dry because of the heat and air humidity plummeting to below 50 percent.
Southern Vietnam is approaching the dry season so unseasonal rain is not likely, Le Thi Xuan Lan, a meteorologist, told Tuoi Tre (Youth) newspaper.
It has not rained in the region for the past two months, endangering local agriculture and forestry.
Salinization has encroached on 40km along the estuaries in Ben Tre Province.
The high salinity will be detrimental to most of the freshwater plants and aquatic products.
Winds are forecast to push saline water deeper into the estuaries in Ben Tre, Soc Trang, Tien Giang, and Tra Vinh.