Recent severe drought and heatwaves have driven the Danube to record lows across Hungary, Romania, and neighboring stretches, with Budapest gauges hitting unprecedented depths around 23-41 cm in early August 2026 and disrupting shipping, cruise operations, hydropower, and nuclear plant cooling. These conditions, visible in satellite imagery and tied to reduced Alpine snowmelt plus repeated dry periods, explain why traders assign only modest probability to recovery before mid-September. The tight contest between late-September and October resolutions reflects uncertainty over the timing of seasonal rainfall and cooling temperatures needed to replenish flows, alongside historical patterns where summer droughts ease gradually into autumn. A sustained cool front or heavy precipitation events could accelerate normalization and shift odds toward earlier buckets, while continued high temperatures or absent rains would reinforce later timelines or the low-probability tail beyond November.