BANGKOK, THAILAND – Thailand faced sharply contrasting weather over the New Year period, with a cold snap in the north and dangerous storms in the south.
Cold front brought chill to north and northeast
From 26 to 28 December, a strong cold front from China moved across Thailand, bringing cool to cold conditions to the north and northeast. In the north and central region, temperatures were expected to fall by 2–4°C, while Bangkok and the east faced a drop of 1–3°C. Strong winds made the chill feel even more uncomfortable, and travellers to these regions were advised to pack warm clothing.
Southern region hit by heavy rain and life-threatening seas
In the south, a powerful northeasterly monsoon brought heavy to very heavy rainfall, increasing the risk of flooding and landslides. In the lower Gulf of Thailand, waves reached 2–3 metres and rose to over 3 metres in thunderstorms, creating acute danger for small boats and ferries. Authorities strongly advised against sea excursions as conditions posed a life-threatening risk.
Countdown period brought only limited relief
Around the New Year countdown from 29 December to 1 January, the high-pressure system weakened and temperatures rose slightly. In the north it remained cool to cold with light morning fog, favouring cosy evenings rather than beach parties. In the south, rainfall eased somewhat but intense local showers remained possible, meaning the severe weather risk was not fully over.
Waves eased slowly but marine hazards persisted
At sea, conditions improved only gradually, with wave heights in the lower Gulf dropping to about 2 metres, and 1–2 metres expected in the upper Gulf.
“In thunderstorms, however, the waves can still become dangerously high,”
said the Thailand Meteorological Department (TMD). Holidaymakers along the eastern and southern coasts were urged to follow flag warnings on the beaches and to avoid swimming.
Travel plans and safety guidance for New Year
The forecast directly affected end-of-year travel, with beach holidays in the south at risk of being washed out. Mountain trips in the cooler north required warm gear, and the Gulf of Thailand was deemed unsuitable for leisure sailors. The TMD advised the public to check its warnings hourly and to put safety ahead of any New Year plans.
A turbulent turn of the year ahead
Thailand experienced a divided New Year, with fire baskets glowing in the chilly north while the south struggled with the elements. People were urged to be ready for anything, from winter clothing to waterproof backup plans for excursions. The public was called on to stay safe as the country moved into 2026 under unsettled skies.