The Meteorological Department says rain eases from 21 to 26 Sep 2026 but heavy to very heavy falls remain in spots. Very heavy rain is forecast for central Thailand and Bangkok on 25-26 Sep, and for the eastern region on 24-26 Sep. Flash floods and runoff are a risk in low-lying areas and near hill slopes. For a small business, check stock and equipment stored at ground level, plan deliveries and staff travel around flooded roads, and keep delivery schedules flexible. Small boats in the upper Andaman should stay in port for one more day (20 Sep).