Nationwide, average temperatures for January are expected to align with historical averages. However, northern Vietnam is likely to experience harsher conditions compared to December 2024.

Rainfall across the northern region and provinces from Thanh Hoa to Da Nang is anticipated to be 10–20 mm below average, while other areas may see rainfall exceeding the norm by 5–10 mm.

During the early days of January, a low-pressure trough situated between 6–9 degrees north latitude, linked to a low-pressure zone over the southern East Sea, is expected to bring strong winds, high waves, and thunderstorms to various coastal areas. This trough will gradually shift southward and weaken.

Mid-January is forecasted to bring the most significant cold spells. The intensified cold air could result in severe cold (rét đậm) and extreme cold (rét hại), with the potential for frost and icy conditions in mountainous areas.

Adverse effects on land and sea

On land, severe cold and frost pose risks to livestock, crops, and public health, particularly in northern mountainous regions. Frost and salt frost may significantly disrupt agricultural activities.

In central and southern regions, scattered showers and localized heavy rainfall may occur, alongside unseasonal rain in the southern provinces. Thunderstorms in these areas could bring extreme weather phenomena, such as tornadoes, lightning, hail, and strong winds.

At sea, strong winds and high waves resulting from cold air activity could threaten maritime operations, particularly for fishing vessels and transport ships.

Meteorologists caution that intensified cold air and extreme weather conditions in January could have widespread impacts. Farmers and residents in affected areas are urged to prepare for severe weather by protecting livestock, crops, and infrastructure.

Authorities and maritime operators should closely monitor weather updates and ensure safety measures are in place to mitigate risks from strong winds and high seas.

Bao Anh