Prolonged European drought and successive heatwaves have driven Rhine water levels to record lows at critical gauges like Kaub, halting commercial shipping and confirming the river's current below-normal state as of mid-August 2026. Low Alpine snowpack, minimal summer rainfall, and warming trends that weaken natural recharge have sustained the conditions, with forecasts showing below-average precipitation persisting through the period. Trader consensus splits closely between October recovery and no return by November because short-term weather shifts or early autumn rains could raise levels enough for partial navigation, yet seasonal patterns and climate-driven dryness create substantial uncertainty around any rebound timeline before late fall.