As of August 12, Northern Vietnam is under the grip of a severe heatwave, with temperatures forecasted to range from 35 to 37 degrees Celsius. However, actual temperatures could be significantly higher. This heatwave is expected to persist until around August 14. Notably, Bắc Mê in Tuyên Quang has consistently recorded the highest temperatures in the country, reaching between 39.5 and 40 degrees Celsius.

On August 11, the highest temperature in Bắc Mê was recorded at 39.6 degrees, far surpassing other locations where temperatures typically ranged from 37 to 38 degrees, such as Hanoi at 38 degrees, Lào Cai at 37.2 degrees, and Bắc Ninh at 37.3 degrees. The previous days also saw high temperatures in Bắc Mê, with readings of 39 degrees on August 10 and a peak of 39.9 degrees on August 9, which was approximately 2 degrees higher than other areas.

Today, the heat continues to blanket Northern Vietnam, with the exception of Lai Châu and Điện Biên, where temperatures are expected to be between 35-37 degrees, and in some areas, even above 37 degrees. The relative humidity is forecasted to be low, around 55-60%, contributing to a hot and oppressive feeling. In Hanoi, the weather is hot, with some areas experiencing extreme heat. Rain showers and thunderstorms are expected in the evening and night. The winds are forecasted to be from the northwest at levels 2-3, with minimum temperatures between 27-29 degrees and maximum temperatures reaching 35-37 degrees, with some areas exceeding 37 degrees.

Looking ahead to August 13, the northern region (excluding Điện Biên, Lai Châu, Sơn La, Quảng Ninh, and Hải Phòng) is expected to continue experiencing heat, with maximum temperatures generally around 35-36 degrees, and some areas exceeding 36 degrees. From August 14, the heat is anticipated to gradually ease in Northern Vietnam.

In the Thanh Hóa to Phú Yên region, hot weather will persist, with some areas experiencing extreme heat. Evening and nighttime thunderstorms are also expected. Winds from the southwest are predicted at levels 2-3, and during thunderstorms, there is a risk of strong winds, lightning, and hail. Minimum temperatures will range from 26-29 degrees, while maximum temperatures will be between 35-37 degrees, with some areas exceeding 37 degrees.

The Central Coast is forecasted to be sunny today, with evening and nighttime thunderstorms in some areas. The same weather pattern is expected in the Central Highlands, with scattered rain showers and thunderstorms in the afternoon and evening. The southern region will also experience sunny weather, with evening and nighttime rain showers and thunderstorms expected.

The meteorological agency has noted that there can be a discrepancy of 2-4 degrees between forecasted and actual temperatures, depending on surface conditions such as concrete, greenery, and water bodies.