TEAMG, a private water-management consultancy, says rainfall in Bangkok and its vicinity fell to about 100 mm per day on 27 September 2026 and water on many roads and canals is receding. Low-lying areas and spots near canals may still have standing water until water clearly drops on 28 September. Road drainage handles only about 60 mm per day, so expect some streets to stay wet. If your shop, warehouse or delivery routes are in low-lying or canal-side areas, plan for a slow reopening and keep stock off the ground for another day or two.