Sudan's June–August 2026 Lean Season Emergency Begins — IPC Projects 28.9 Million Acutely Hungry at Peak

June 1, 2026 marks the official onset of Sudan's June–August lean season — the period IPC (Integrated Food Security Phase Classification) projects will see acute hunger peak at 28.9 million people (more than half the population), up from the mid-May baseline of 19.5 million acutely food insecure. IPC Phase 5 catastrophic famine has been confirmed in El Fasher (North Darfur) and Kadugli (South Kordofan), with 20+ additional areas at critical famine risk. An estimated 135,000 people are in IPC Phase 5 starvation nationwide. The lean season onset coincides with the beginning of the rainy season (June–October), which typically cuts off road access to besieged communities, reduces aerial resupply options, and historically accelerates famine in isolated populations. Key humanitarian access constraints as the lean season begins: Chad's Adre border crossing remains closed following the RSF Al-Tina market drone strike (May 25, 14 killed); cross-line aid into RSF-held Darfur is heavily restricted; RSF drone attacks have struck 12+ healthcare facilities since January; and Sudan's 2026 Humanitarian Needs and Response Plan is only approximately 20% funded against a $3 billion target. UN OCHA Emergency Relief Coordinator Tom Fletcher has warned that 34 million people — 65% of Sudan's population — require urgent humanitarian support. WFP has sounded alarms that the June–August lean season could produce the world's worst food crisis absent dramatic scale-up of funding and access.