Cool temperatures and fog: weather warning for Thailand until January 6th!

Cool temperatures and fog: weather warning for Thailand until January 6th!

The new year 2026 started in Thailand with a cooler weather trend, which will intensify significantly in the coming days. Today, Thailand's Meteorological Department (TMD) announces that the public should prepare for fluctuating temperatures. A high pressure system over northern Thailand is slowly losing strength as temperatures rise slightly during the day. In the morning, however, it remains fresh and cool, especially in the mountainous regions of the north and northeast. Travelers should pay particular attention to visibility as dense fog can cause low visibility in certain areas in both northern and central Thailand.

The coming week promises a significant cooling. From January 2nd, a moderate to strong high pressure system is expected from China, which will further reduce temperatures in the upper part of the country. The TMD notes that “cool to cold” conditions are expected, particularly in northern and northeastern Thailand. Cooler morning temperatures of between 21 and 24°C are expected for Bangkok over the next 24 hours, while daytime highs will be around 32-34°C. The northeast wind blows at 10-15 km/h, which should reinforce the fresh impression of the wintry days.
thethaiger.comreports that health authorities are encouraging citizens to pay attention to their health, especially in northern Thailand, as temperatures can fluctuate widely.

Weather warnings and advisories

Cooler weather is also forecast for the remaining regions of Thailand, particularly in central and eastern areas. People are urged to exercise caution in vehicles while visibility may be reduced due to the fog. A warning for thunderstorms and high waves is also issued for lower Thailand (Gulf of Thailand). The wave height could be between 1-2 meters and even rise above that in thunderstorms. Additionally, a weak northeast monsoon is expected across the Gulf and lower South, although this may increase in intensity towards the end of the week.
Information about this can also be found on the TMD website: tmd.go.th.

With regard to climate change, a study by the international specialist magazine shows nature.com, that the number of dry days could increase in northern and northeastern Thailand. This, in combination with the current weather conditions, could lead to a worsening of the drought phases in these regions. Historically, the regions of central, northern and parts of southern Thailand have experienced a significant increase in dry days in recent decades. The forecasts indicate that adaptation to these climatic changes is essential.

Overall, the new weather pattern encourages you to take the necessary precautions. While large parts of the country will benefit from cool temperatures, it is important to monitor and respond to the challenges of climate change. The coming days will show us how much the weather can influence our everyday lives and what measures make sense to ensure health and safety.