Bangkok: The Meteorological Department announced that while the coldest period in Thailand has passed, the nation will continue to experience cold weather until January 20. Temperatures are expected to gradually rise, transitioning into the summer season by mid-February.
According to Thai News Agency, Mr. Somkuan Tonjan, Director of the Meteorological Department's Weather Forecast Division, reported that the strong cold air mass affecting the upper regions of Thailand has weakened, marking the coldest day on January 13, 2025. Over the past few days, temperatures in the northern and upper northeastern regions have reached their lowest in 2-5 years. However, a new high-pressure system from China is predicted to lower temperatures again between January 16-20, although it will not be as cold as earlier in January. Meanwhile, Bangkok and the central and eastern regions will experience cool morning weather until about January 20, after which temperatures will rise as the country moves into the summer season.
The ENSO phenomenon remains in a weak La Ni±a state, influencing the weather patterns. February will still see La Ni±a conditions, shifting to a neutral state from mid-March to early April. This summer is expected to be less hot than the previous year, due to increased humidity and occasional rainfall. The summer of 2024, characterized by El Ni±o conditions, will contrast with this year's climate.
March and April, typically the hottest months, may still see extreme temperatures, with some areas exceeding 40 degrees Celsius. However, the heat is not expected to persist for long periods, with rain potentially providing relief. The year 2568 is anticipated to experience early rainfall, with the rainy season expected to begin around mid-May. The distribution of rain early in the season is projected to be favorable, though a comprehensive assessment of rainfall throughout the season will require closer monitoring as the rainy season approaches.
Mr. Somkuan also cautioned that starting January 15, the southern region, particularly the Gulf of Thailand, should prepare for rain due to a strengthening northeastern monsoon. Thunderstorms are expected in the South, with the lower South at risk for heavy rain. Additionally, strong winds and high waves are forecasted for the Gulf of Thailand and the Andaman Sea from January 16-18. Waves in the Gulf could reach 2-3 meters, exceeding 3 meters during thunderstorms, while the Andaman Sea may see waves of 1-2 meters and up to 2 meters offshore. Residents along the coast are advised to exercise caution, and small boats should avoid venturing out during this period.