A weak cold front is expected to move into northern Vietnam next week, but experts say it will not bring a noticeable drop in temperature. In Hanoi, daily highs could still stay above 32 °C, so the heat may continue.

The Southern Regional Hydrometeorological Center forecasts that the main weather pattern for 17‑27 October 2026 will involve weakening cold air. It also mentions a possible weak eastward‑shifting surge around 20‑21 October, which is unlikely to be strong enough to cool the north significantly.

The National Center for Hydro‑Meteorological Forecasting said cold‑air outbreaks have remained infrequent and weak despite the arrival of mid‑October. This weak cold air limits any temperature fall.

At the same time, disturbances in upper‑level easterly winds are expected to intensify. These stronger wind disturbances will increase rainfall across southern Vietnam, but they do not bring cooler air to the north.

Meteorological authorities warned that El Niño is forecast to become particularly strong during the final months of 2026. A strong El Niño weakens cold‑air outbreaks and pushes nationwide temperatures above long‑term averages.

Because the incoming front is weak and El Niño will keep the cold air limited, Hanoi is likely to stay hot throughout the period. Knowing this helps people plan outdoor activities and stay safe in the continuing heat.