Severe drought and repeated heatwaves across Central and Eastern Europe have driven the Danube to record-low levels through early August 2026, with flows well below seasonal averages in Romania, Hungary, and Serbia, disrupting shipping, irrigation, and hydropower. Trader consensus remains closely split among September and October return windows plus the chance of no recovery by November 1 because seasonal rainfall forecasts carry high uncertainty, and no major precipitation event has yet materialized to reverse the trend. Heavy or sustained rains in the upper basin could raise levels quickly and shift probabilities toward earlier dates, while continued dry conditions would widen support for later or post-November outcomes.