Northern Vietnam is bracing for a cold snap that is expected to arrive later than usual, largely due to the ongoing effects of El Niño. According to forecasts from the National Center for Hydro-Meteorological Forecasting, the El Niño phenomenon is currently very strong, which is causing average temperatures across the region to rise and cold air activity to weaken.

From October 2026 to March 2027, it is anticipated that the cold air will be less active than in previous years, leading to fewer days of severe cold weather. The first significant cold spell is projected to occur later than the typical climatic patterns, with the number of cold days expected to be lower than the historical average for this period.

Specifically, the forecast indicates that from October to December 2026, the cold air will be less vigorous, resulting in a delay in the onset of severe cold spells. The average temperatures during this period are expected to be 1.0 to 2.0 degrees Celsius higher than the historical averages, with some areas experiencing even greater increases.

As for precipitation, the forecast suggests that rainfall in Northern Vietnam will exceed historical averages by 5-20% during October 2026, with similar trends expected in November and December. However, from January to March 2027, rainfall levels are predicted to align closely with historical averages.

In addition to the delayed cold snap, the forecast indicates a potential early onset of hot weather in Southern Vietnam, particularly from February 2027. This shift in weather patterns highlights the complexities of climate change, which continues to bring about extreme and unpredictable weather events.

Given these developments, it is crucial for local authorities and residents to stay updated on weather forecasts and prepare accordingly for any potential impacts on agriculture and daily life.