A major El Niño pattern is actively intensifying across the Equatorial Pacific and is on track to become one of the strongest of these events ever recorded. We have already seen significant global impacts on the shipping industry from this event as a result of the associated heatwaves, droughts, excessive rainfall, and changes in tropical activity. These impacts have the potential to create significant operational challenges in the months ahead - confined not only the Pacific basin, but to areas around the globe.

What is El Niño?

El Niño is a naturally occurring global climate pattern characterized by significantly warmer waters across the Central and Eastern Pacific Ocean. Displacement of the location of the Pacific Ocean’s largest heat source greatly alters the atmospheric circulation and long-term weather patterns on a global scale.

Figure #1: Sea surface temperature anomalies across the globe basis July 31st 2026

Impacts on Waterways

One of the most important impacts of El Niño is its influence on regional precipitation. Locations such as Panama Canal are heavily impacted by the effects of droughts, as reservoir levels needed to operate the locks are reduced. We are already seeing a planned implementation of a lower maximum draft limit for Panama Canal later this month, with future restrictions being evaluated. This can impose significant operational restrictions, with potential changes to cargo capacity, scheduling, voyage duration, and potential alternative routing options. On the other hand, above average rainfall totals can result in flooding of waterways in other areas of the world, which can also cause logistical challenges.

Infrastructure Damage

Heatwaves can damage the vital transportation infrastructure which supports shipping operations, particularly with spikes in electricity demand for cooling purposes. Excessive rainfall, which is expected in many locations worldwide, may also result in damaged infrastructure both in and around ports. Increases in tropical activity can result in the closing of certain ports in preparation of the storms and damage to structures in the unfortunate event of a landfalling system, further halting port operations and berthing efforts for days at a time. 

Figure #2: 2-meter Temperature Anomaly from August through September 2026

Delayed Port Operations and Cargo Availability

The effects of El Niño can extend beyond vessel operations. Extreme heat affects crews and equipment, causing delays as well as limiting cargo supply in dangerous working conditions. Excessive amounts of rainfall can result in the flooding of ports, roads, and railways which further impacts shipping timelines and delivery of cargo, especially when considering the movement of moisture sensitive cargo such as grains, coffee, sugar, or rice. Tropical cyclone activity can once again force onshore and offshore operations at a port to pause for extended lengths of time when dealing with significant threats, disrupting the flow of shipping and cargo deliveries/demands. 

Figure #3: Accumulated Precipitation Monthly Anomaly (mm) from August through September 2026

Changes to Tropical Development

El Niño generates significant changes to the global tropical pattern generally causing: 

• More favorable conditions for tropical cyclone formation in the Eastern and Central Pacific, which can lead to an increase in hurricane activity.
• The location of tropical cyclone development often shifts across the West Pacific due to changes and distributions of higher sea surface temperatures. 
• An inhibition of tropical formation in the Atlantic basin - the current Atlantic 2026 Hurricane Season is tracking at a well-below average pace thus far, with only two named storms as we approach the typical peak months. 

While this pattern allows more flexibility for routing across the Atlantic and Western Pacific basins, this imposes a larger threat to routing across the Eastern Pacific basin.

Figure #4: WRI's Tropical Tracker with latest discussion and forecast for all active tropical systems 

For any more information on port/area-specific impacts, please do not hesitate to reach out to WRI at any point to discuss. Whether you are facing delayed operations in ports such as loading, berthing, canal transits, or require up to date and insightful port forecast outlooks to make informed decisions, WRI is available to assist. In view of stronger weather systems in some parts of the globe, atypical weather patterns will result in altered routing decisions. Our experts are well-versed in these critical decisions and able to provide insightful feedback in a timely manner.