Sofar Ocean White Paper Warns El Niño Is Straining Global Ports

Sofar Ocean has released a white paper examining how the strengthening 2026 El Niño event is affecting port infrastructure and operations worldwide. NOAA expects the event to peak between October and December, with most models pointing to one of the strongest on record. The paper argues that ports built against historical averages face growing strain, with climate-related downtime already putting an estimated 81 billion dollars of global trade at risk annually, and details how real-time ocean data is helping ports adapt.

 

The El Niño Event

 

The white paper addresses a significant developing weather event. El Niño conditions formed in June 2026 and are strengthening. NOAA expects the event to peak between October and December. There is a 97 percent chance it persists into early spring 2027. This makes it a sustained and significant phenomenon.

The event's projected scale is particularly notable. Most models point to one of the strongest events on record. It is described as incomparable to analogues in recent history. This exceptional strength underpins the concern for port operations. It suggests impacts beyond those seen in typical El Niño years.

 

Why Ports Are Vulnerable

 

The paper explains a fundamental mismatch facing ports. Port infrastructure is built against historical averages. This includes dredging schedules, sailing drafts and tidal windows. Mooring thresholds and permit limits are also calibrated to a baseline. A strong El Niño event shifts this baseline significantly.

The direction of this shift varies by location. It depends on where a port sits geographically. This creates uncertainty for operations calibrated to past norms. The financial stakes of such disruption are substantial. Climate-related downtime already risks 81 billion dollars of global trade annually, and at least 122 billion dollars of wider economic activity.

 

Uneven Global Impacts

 

The white paper stresses that impacts are not uniform. Different regions face different challenges from the event. The Americas face higher water and increased surge conditions. Peru's maritime authority closed ports across multiple zones in July 2026. This followed anomalous swells reaching two to three times their normal height.

Other regions face contrasting effects. The western Pacific faces falling water and compressed dredging windows. It also sees calmer seas and fewer tropical cyclones. South Asia faces both flood and drought risk in the same season. The Atlantic, meanwhile, sees reduced hurricane activity during the event.

 

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Ports Adapting With Real-Time Data

 

The paper highlights how ports are already responding. It cites the example of a Chilean marine engineering firm. The firm replaced manual, three-times-daily wave readings with real-time data. This data comes from Sofar's Spotter buoys. It informs mooring decisions for oil tankers at an exposed terminal.

The scale of this adaptation has grown considerably. The firm grew its deployment from one buoy to six. This coverage now spans more than 1,800 kilometres of coastline. This expansion reflects the value of the real-time data. It demonstrates a practical shift away from manual observation methods.

 

The Case for Continuous Measurement

 

The paper makes a broader argument about decision-making. Company leadership stressed the risk of outdated assumptions. The greatest operational risk is rarely the weather itself. Instead, it lies in decisions based on assumptions that no longer hold. This year's El Niño has already moved those assumptions.

The proposed solution centres on continuous data collection. This involves in-situ measurement of water level, currents, sound and water quality. It is paired with hyperlocal forecasting from Sofar's system. Together these give ports a real-time picture of conditions. This replaces seasonal averages that the event has already shifted.