Safety
Weather Alert: Heavy Rains and Rough Seas Expected Across Thailand
The Thai Meteorological Department has issued a warning regarding heavy rainfall and hazardous sea conditions caused by a strong southwest monsoon.
Weather Advisory
According to the Thai Meteorological Department (TMD) as of August 15, 2026, a monsoon trough is currently affecting the upper northern regions of Thailand, extending from Myanmar and Laos toward Vietnam. Simultaneously, a rather strong southwest monsoon is prevailing over the Andaman Sea, the Gulf of Thailand, and the country at large.
Impact on Travel and Residents
This weather pattern is expected to bring isolated heavy rains across the nation. For those residing in or traveling to coastal areas, the situation is particularly significant: the TMD reports that the strong winds are generating waves in the upper Andaman Sea reaching heights of 2 to 3 meters. In areas experiencing thundershowers, wave heights are projected to exceed 3 meters. These conditions pose potential risks for maritime activities and coastal travel.
Current Status
While the TMD has identified the meteorological causes—specifically the monsoon trough and the prevailing southwest monsoon—the exact duration and specific geographic intensity of the rainfall remain subject to ongoing monitoring. Residents and travelers are advised to stay updated through official TMD channels for the latest developments. As of now, the primary concern remains the hazardous sea conditions in the upper Andaman region, which may impact ferry services and small boat operations.