Bangkok: Northern Thailand continues to grapple with thunderstorms, while the southern region is bracing for heavy rain in select areas. The Meteorological Department has issued a comprehensive weather forecast, highlighting the continuation of thunderstorms in upper Thailand and the likelihood of heavy rain in parts of the southern region.
According to Thai News Agency, the persistent weather patterns are attributed to easterly and southeasterly winds sweeping across Thailand, the Gulf of Thailand, and the Andaman Sea. The South is particularly vulnerable, with warnings issued for residents to remain vigilant against the dangers posed by thunderstorms, heavy rain, and potential flooding. Caution is advised for those traveling through areas prone to flooding during this period.
In the maritime regions of the Andaman Sea and the Gulf of Thailand, waves are reported to reach approximately 1 meter in height, with conditions worsening to over 2 meters in areas affected by thunderstorms. Mariners have been urged to exercise caution and avoid navigating through storm-affected zones.
Adding to the weather concerns, a tropical depression currently in the Pacific Ocean, east of the Philippines, is anticipated to strengthen and is projected to enter the South China Sea between October 18-19, 2025.
The regional weather forecast for October 17, 2025, indicates varied conditions across the country. In Bangkok and surrounding areas, thunderstorms are expected in 40% of the region, with temperatures ranging from a minimum of 24-26 degrees Celsius to a maximum of 34-35 degrees Celsius, accompanied by southeasterly winds at 10-20 km/h.
Northern Thailand will also experience thunderstorms in 40% of the area, focusing on provinces such as Mae Hong Son, Chiang Mai, and Chiang Rai. The minimum temperature is forecasted at 22-24 degrees Celsius and a maximum of 32-34 degrees Celsius, with southeast wind speeds of 5-15 km/hr.
In the Northeastern region, thunderstorms will affect 30% of the area, particularly in provinces like Loei and Chaiyaphum. Temperatures are expected to range from a minimum of 23-24 degrees Celsius to a maximum of 32-34 degrees Celsius, with northeast winds at 10-20 km/hr.
Central Thailand will see thunderstorms in 40% of the region, impacting areas like Kanchanaburi and Ratchaburi. Temperatures are predicted to be between 23-26 degrees Celsius at the minimum and 33-35 degrees Celsius at the maximum, with southeasterly winds blowing at 10-20 km/h.
The Eastern region can expect similar thunderstorm activity in 40% of the area, primarily affecting Chachoengsao and Chonburi. The minimum temperature is estimated at 24-25 degrees Celsius with a maximum of 33-35 degrees Celsius, while easterly winds will range from 15-30 km/hr.
On the Southern Region's East Coast, thunderstorms are forecasted for 70% of the area, with heavy rain expected in places like Surat Thani and Songkhla. Temperatures will vary from 23-25 degrees Celsius to 32-33 degrees Celsius at their maximum, with southeasterly winds at 15-30 km/h. The sea will have waves of about 1 meter, rising to over 2 meters in stormy conditions.
For the Southern Region's West Coast, thunderstorms are expected in 60% of the area, mainly affecting Phang Nga and Krabi. The minimum temperature will range from 23-25 degrees Celsius, with a high of 32-34 degrees Celsius, and southeasterly winds at 15-30 km/hr. Waves in the sea are expected to be around 1 meter, increasing above 2 meters in areas with thunderstorms.