Thailand is experiencing cool morning conditions in several northern and northeastern provinces, while forecasters warn that daytime temperatures are set to rise and scattered thunderstorms may affect parts of the country in the coming days.

The Thai Meteorological Department said the current pattern is driven by moderate high-pressure systems over upper Thailand, combined with southeasterly and southerly winds bringing moisture from the Gulf of Thailand and the South China Sea.

Residents in elevated and rural areas have reported brisk early-morning air, particularly in the North and Northeast, with minimum temperatures dipping below seasonal averages in some districts.

However, meteorologists caution that these cooler spells will give way to warmer afternoons as solar heating intensifies, creating unstable atmospheric conditions conducive to isolated thundershowers.

Scattered thunderstorms are expected mainly in parts of the Central Plains, the East and the lower Northeast, with brief heavy rainfall and gusty winds possible in certain localities.

Southern provinces may also see intermittent showers, especially along the eastern coast, as moisture converges over coastal areas.

Authorities have advised farmers and residents to remain alert to sudden weather changes, particularly in open areas vulnerable to strong winds.

The Meteorological Department noted that while the current weather system does not pose a severe threat, fluctuating conditions may continue throughout the week.

Officials encouraged the public to monitor regular forecasts and prepare for abrupt shifts between cool mornings and warmer, more humid afternoons accompanied by spotty storms.

The transitional pattern reflects Thailand’s gradual movement toward the pre-monsoon period, when rising temperatures frequently interact with incoming moisture to produce scattered rainfall.