Most storms and tropical depressions have been forecasted to affect the East Sea and Vietnam between August and October.

Vietnam is likely to experience slightly higher temperatures in July this year with one or two typhoons expected to hit the East Sea, according to the National Center for Hydrometeorological Forecasting.

Weathermen forecast partial thunderstorms will hit the South in the afternoon and evening while new heat waves are descending the North until the end of June.

Most of provinces and cities nationwide have recorded ultraviolet levels of “high” and “very high” risk of harm on May 27, according to the National Centre for Hydro-Meteorological Forecasting.

About 1,100ha of farmland in the northern mountainous provinces face imminent risks of drought, according to the Department of Water Resources under the Ministry of Agriculture and Rural Development.

Residents in Vietnam’s capital city of Hanoi’s complained about power outages while the city is experiencing the most brutal stretch yet of an ongoing heat wave.

After three years of the La Nina weather pattern which is the other phase of ENSO, the El Nino phenomenon is likely to return in Vietnam in late May or early June, with a probability of up to 80%, and this phenomenon may last into early 2024.

According to the World Health Organisation, a UV index of 7.5 to 10.4 is deemed "very high", which means a very high risk of harm from unprotected sun exposure.

A new heat wave is forecast to strike northern and central regions of Vietnam next week, with daytime temperatures to hit a high of 42℃, according to the National Centre for Hydro Meteorological Forecasting.

El Nino is set to return in late May or early June, with the weather pattern likely to last till early 2024, according to the National Centre for Hydro-Meteorological Forecasting of Vietnam.

Vietnam is forecast to experience extreme weather conditions and severe fluctuations in temperatures this summer.

The water level of Tri An hydropower reservoir, the largest of its kind in the southern region, has dropped to “dead level” due to a prolonged dry season and El Niño phenomena.

The East Sea has been forecasted to see a tropical depression in the next 24 hours, the first this year.

The first heat wave of this year’s summer, with temperatures peaking over 41 degrees Celsius, is predicted to scorch Hanoi as well as northern and central provinces until Sunday.

Regions across Vietnam are experiencing hot weather on May 4 with the temperature in some areas exceeding 37 degrees Celsius, according to the National Centre for Hydro-Meteorological Forecasting.

Ho Chi Minh City reached its highest levels of ultraviolet (UV) radiation with a scale of 9.8 on May 2 to become the hottest day of the year so far.