A cold front is expected to begin affecting northern Vietnam around Tuesday night, with forecast site i-weather predicting that the temperature will drop to minus three degrees Celsius at the top of Fansipan Mountain.

The cold snap will start influencing the mountainous provinces in northern Vietnam on Tuesday night and the rest of the region on Wednesday morning, the National Center for Hydro-meteorological Forecasting reported.

It will later expand its effects to north-central localities.

Temperatures in northern and north-central provinces are expected to drop starting Wednesday.

The lowest mercury in mountainous areas will be 9-12 degrees Celsius and below five degrees Celsius in some high-altitude locations.

The average lows in the Red River Delta will be 12-14 degrees Celsius, and in north-central localities will be 13-16 degrees Celsius.

Temperatures will further drop in the following days, and the frigid weather is expected to last until Saturday.

The temperature at the top of Fansipan Mountain in northern Lao Cai Province may drop to below zero degrees Celsius, while sleet and frost may form, said Luu Minh Hai, former director of the Lao Cai hydro-meteorological station.

Meanwhile, forecast site i-weather predicts that the temperature on the Fansipan peak may plunge to minus three degrees Celsius between Thursday and Saturday.

There will also be a chance of snow, the site added.

According to the National Center for Hydro-meteorological Forecasting, the cold front will bring winds of 12-38km per hour to northern provinces.

Showers will also dampen the region on Tuesday night and on Wednesday.

Medium to heavy rains are also forecast to lash central and south-central provinces from Wednesday night to Saturday.

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