Panama Canal reduces Neopanamax draft to 47.5 feet amid El Niño water shortages
While the maximum draft will decrease, the agency confirmed that daily traffic volume will remain unchanged.
PANAMA – The Panama Canal Authority has announced two upcoming reductions in vessel depth limits for ships navigating the Neopanamax locks, lowering the maximum authorized draft to 48 feet effective August 26, 2026, and further reducing it to 47.5 feet effective September 3, as the authority responds to declining water levels in Gatun Lake driven by an exceptionally strong El Niño event.
The measure is based on current water levels and projected conditions in Gatun Lake over the coming weeks. The authority described the move as part of its ongoing water management and operational strategy to ensure the long-term sustainability of its operations.
“The draft adjustment will not affect the number of daily vessel transits,” the authority said, adding that it “reflects water conservation and resource management measures that have been in place since December 2025 as part of preparations for the 2026 dry season.”
El Niño Impact and Forecast
NOAA NWS Climate Prediction Center said last week that there is a 69% chance of a historic event during the October-December 2026 season that would exceed the strength of previous El Niño events dating back to 1950.
According to NOAA’s August forecast, the chances of experiencing impacts consistent with El Niño are larger, but they are not guaranteed.
In that same forecast, the centre cautioned that El Niño is strengthening, with a greater than 90% chance of a very strong event during the Northern Hemisphere fall and winter 2026-27. These conditions are expected to worsen water levels in Gatun Lake, which serves as the primary water source for the canal’s lock operations.
Water Conservation Strategy and Historical Context
ACP said the announced measures result from operational planning informed by lessons learned during the 2023-2024 period, as well as hydrological analyses and historical data that support the canal’s operational decision-making process. These reductions are the authority’s fourth and fifth draft adjustments.
However, while the maximum draft will decrease, the agency confirmed that daily traffic volume will remain unchanged.
Overall, these actions highlight the canal’s ongoing efforts to balance global maritime trade with increasingly volatile environmental conditions.
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