Hot conditions have already been building across the region under the influence of a stable subtropical high-pressure system stretching over southern and south-central Vietnam. Weak winds over southern seas are also contributing to clearer skies and stronger solar radiation, further intensifying the heat.

Temperatures in Ho Chi Minh City and southeastern provinces ranged between 36°C and 37°C over the weekend, and could rise by about one degree from early next week.

The heat is also forecast to expand into the Mekong Delta, with some areas experiencing particularly intense conditions. Border provinces such as Dong Thap and An Giang could see temperatures of up to 37°C, while Vinh Long and Can Tho are expected to record seasonal highs of around 36°C.

Nationwide, hot weather is set to develop across northern regions starting April 6. The northwestern and Red River Delta areas may experience widespread heat, with temperatures ranging from 35°C to 37°C and exceeding 38°C in some locations. The heat is expected to extend to northeastern provinces from April 7, accompanied by relatively low humidity levels of 45% to 55%.

Meteorological authorities noted that actual “feels-like” temperatures outdoors may be 2–4°C higher than recorded levels due to heat absorption from surfaces such as concrete and asphalt.

Prolonged hot weather combined with low humidity increases the risk of fires and electrical incidents, particularly in residential areas where power demand is high. Health risks are also elevated, including dehydration and heat-related illnesses for those exposed to high temperatures for extended periods.

Heatwaves to soon bake northern Vietnam, temperatures to exceed 37°C

VOV.VN - Northern Vietnam is expected to experience only a brief period of mild weather before two widespread heatwaves return and dominate in early April.