Monsoon Season Weather Checker
Historical averages only (TMD 1991–2020). No forecasts.
Source baseline: Thai Meteorological Department (กรมอุตุนิยมวิทยา) 30-year normals (1991–2020) and regional monsoon summaries. Andaman (May–Oct), Gulf east (Oct–Jan), Upper Gulf west (Sep–Nov), Eastern seaboard/Trat (Sep–Jan).