The Panama Canal Authority announced significant reductions in daily ship transits due to critically low water levels in its essential artificial lakes, exacerbated by a strengthening Super El Niño. Beginning September 3, the number of ships allowed through the waterway will decrease from 36 to 34 per day, followed by a further reduction to 32 ships per day starting September 15.
Officials cited below-average rainfall in the canal's watershed as the primary reason for the restrictions. Despite the current rainy season, water-saving measures implemented by the authority have not been sufficient to counteract the drought's effects. The canal has already implemented other conservation efforts, including lowering the maximum draft for the largest vessels, which dictates how deep a ship can sit in the water.
The Super El Niño, a weather pattern characterized by warming surface temperatures in the central and eastern equatorial Pacific Ocean, is causing widespread changes in global weather patterns. In the region surrounding the Panama Canal, rainfall from May to August has been 34 percent below the historical average, with forecasts indicating further reductions.
Scientists have warned that the current El Niño event is intensifying, with sea surface temperatures in the tropical Pacific now 2.7 degrees Celsius above average. Data indicates that El Niño conditions are strengthening, with some indices showing a sustained increase and reaching +2.7 °C weekly as of mid-August 2026. This trend suggests the event could become one of the strongest on record, with potentially far-reaching global impacts.
The Panama Canal is a critical artery for global trade, handling approximately five percent of the world's maritime traffic and an estimated 40 percent of U.S. containerized cargo. The authority stated it will continue to monitor weather conditions and provide timely updates on any further operational adjustments necessary for the long-term sustainability of transit operations.