According to the National Center for Hydro-Meteorological Forecasting, on April 30, the area from Thanh Hoa to Phu Yen will have extremely hot weather with the highest temperature commonly ranging from 40 - 43 degrees Celsius, with some places above 43 degrees Celsius such as Tinh Gia (Thanh Hoa) 43.9 degrees Celsius, Con Cuong (Nghe An) 43.2 degrees Celsius, Tuong Duong (Nghe An) 44 degrees Celsius, Huong Khe (Ha Tinh) 43.2 degrees Celsius, Dong Hoi (Quang Binh) 43.2 degrees Celsius, Dong Ha (Quang Tri) 43.6 degrees Celsius...

The Northwestern region of the North has severe heat and especially severe heat with the highest temperature commonly ranging from 37 - 40 degrees Celsius, some places over 41 degrees Celsius such as: Muong Te (Lai Chau) 41.7 degrees Celsius, Yen Chau (Son La) 42.1 degrees Celsius, Phu Yen (Son La) 42 degrees Celsius, Mai Chau (Hoa Binh) 42.5 degrees Celsius.

Other places in the North, Central Highlands and South have hot and extremely hot weather, some places are especially hot with the highest temperature commonly 36 - 39 degrees Celsius, some places over 40 degrees Celsius such as Pho Rang (Lao Cai) 40.7 degrees, Bac Me (Ha Giang) 40.2 degrees Celsius, Bao Lac (Cao Bang) 40.8 degrees Celsius, Nho Quan (Ninh Binh) 41.1 degrees Celsius, Ayunpa (Gia Lai) 41 degrees Celsius... The lowest relative humidity is commonly 35 - 50%.

Thus, on April 30, Tuong Duong District equaled the record for the highest daily temperature in 2024 recorded in Dong Ha City on April 28. This is also the day that recorded a record temperature in 2024 when 38 localities (18 provinces) had temperatures above 40 degrees Celsius.

It is forecasted that on May 1, the area from Ha Tinh to Phu Yen will have severe heat and especially severe heat with the highest temperature commonly ranging from 37 - 40 degrees Celsius, some places over 41 degrees Celsius; the lowest relative humidity commonly ranging from 30 - 35%.

On May 2, the area from Ha Tinh to Phu Yen will have hot and extremely hot weather, with some places experiencing extremely hot weather with the highest temperature commonly ranging from 35 - 38 degrees Celsius, some places above 39 degrees Celsius; the lowest relative humidity commonly ranging from 40 - 45%.

The Central Highlands and the South have hot and extremely hot weather, some places are especially hot with the highest temperature commonly from 35 - 38 degrees Celsius, some places over 39 degrees Celsius; the lowest relative humidity commonly from 45 - 50%. The area from Khanh Hoa to Binh Thuan has localized hot weather with the highest temperature commonly from 35 - 36 degrees Celsius.

The heat warning in the Central and South Central regions is likely to continue; from May 3 to 4, the heat is likely to return to the Northwest and North Central regions; in the Central Highlands and the South, from May 4 to 5, the heat will gradually decrease.