BANGKOK, May 19th, 2025 – The Thai Meteorological Department (TMD) has issued a weather advisory warning of intensified rainfall and thunderstorms across Thailand until early June as the southwest monsoon strengthens over the region. The announcement signals the full onset of the annual rainy season, which typically lasts from May to October.

Thailand Braces for Severe Summer Storms, Heavy Rainfall Across Multiple Region

The TMD attributes the heightened precipitation to a combination of factors, including a robust monsoon trough over the Andaman Sea and Gulf of Thailand, along with low-pressure systems that may exacerbate storm conditions. Northern, northeastern, central, and southern provinces—including Bangkok—are expected to face persistent showers, with some areas at risk of flash floods and landslides due to heavy downpours.

The Meteorological Department has released a 15-day weather forecast for Thailand from May 19 to June 2, 2025, indicating a significant increase in rainfall, particularly over northern and northeastern regions. https://t.co/Afk5Swhh4z

— Erudite Risk (@EruditeRisk) May 20, 2025

Authorities have raised concerns after observing above-average rainfall accumulation in several provinces this May, potentially affecting agricultural activities and infrastructure. The Department of Disaster Prevention and Mitigation has been placed on standby, with local agencies preparing emergency response measures, including possible evacuations in vulnerable zones.

Residents in flood-prone and mountainous regions are urged to remain alert, secure loose property, and avoid travel through high-risk areas during storms. The TMD has committed to providing real-time updates via its official channels, emphasizing the importance of heeding weather warnings.

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This year’s monsoon aligns with broader weather patterns across Southeast Asia, where seasonal rains have arrived with increased intensity. Officials recommend households maintain emergency supplies and stay informed through government advisories as the rainy season progresses.

-Thailand News (TN)