South Sudan: Floods Snapshot (As of 27 August 2025)

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SITUATION UPDATE

As of 27 August, flooding has affected approximately 263,000 people in Mayendit and Panyijiar in Unity, Ayod and Bor South in Jonglei, Longochuk in Upper Nile and Pochalla in Greater Pibor Administrative Area. Additional impacts are reported in Fangak, Twic East, Leer, Mayom and Rubkona, where communities face heightened risks due to prolonged exposure to floodwaters. No protracted displacement has been reported. However, health risks are rising, with cholera cases confirmed in affected areas. Stagnant water, limited access to safe drinking water, and poor sanitation are increasing vulnerability to disease outbreaks. Humanitarian partners are coordinating with health and WASH actors to strengthen surveillance, promote hygiene, and address urgent water and sanitation needs. The South Sudan Flood Expert Technical Group is monitoring two aligned forecast models (University of Reading’s INFLOW and NASA/FEWS NET), both indicating that flooding in 2025 may match or exceed 2024 levels. On 21 August, the Ministry of Water Resources and Irrigation warned of rising flood risks, with several monitoring stations reporting water levels at or above alert thresholds.

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