El Niño Risk Is Expanding Beyond Fuel as Freight Insurers Reassess Summer Exposure

Late-September developments in the insurance and marine-risk market are sharpening a point freight buyers cannot afford to miss: weather risk is no longer just a routing problem or a fuel-cost problem. It is increasingly an insurance and liability problem too.

In Australia, specialist transport insurer National Transport Insurance is urging operators to review cover, declared values and continuity plans ahead of the Southern Hemisphere summer, while the International Union of Marine Insurance said on September 22 that freight-forwarding liability deserves greater attention because forwarders now play a more strategic role in disrupted supply chains and policy wording remains inconsistent across markets. Together, those signals suggest the next layer of freight risk may appear less in linehaul rates than in exclusions, valuation gaps, claims friction and contract review.

Why this story moved in late September

The immediate trigger is a strengthening 2026 El Niño. Australia’s Bureau of Meteorology said El Niño was underway on June 16, 2026, and updated its guidance on September 17. The Japan Meteorological Agency said on September 9 that El Niño conditions had persisted since spring 2026 and were “virtually certain” to continue until boreal winter, with the event likely to peak during that season. In the US, NOAA’s Climate Prediction Center said on September 10 that El Niño was strengthening and had a greater than 90% chance of becoming a very strong event during Northern Hemisphere fall and winter 2026-27.

That climate backdrop matters operationally because severe summer disruption does not need to be uniform to be costly. Dryness, fire risk, heat stress, flood episodes, port congestion, canal constraints and inland network damage can all force rerouting, extra handling and storage-in-transit decisions. Those are the moments when insurance wording and liability allocation start to matter.

What insurers are actually asking operators to review

According to Insurance Business, NTI this week told transport and logistics operators to revisit business continuity plans before summer and, crucially, to check that declared values still reflect current freight costs and stock values. That is a practical underwriting point, not a theoretical one.

Declared values are set at a point in time, but disruption can change what is at risk before a shipment is delivered. If cargo is rerouted, held longer than planned, transloaded, or moved under higher freight costs and duties, the insured amount on file may no longer match the exposure actually moving through the network. NTI logistics risk engineer Chelsea Neely warned that the time to identify alternative routes, suppliers and contacts is before disruption arrives, not during it.

NTI’s own preparedness note goes further by tying El Niño to specific freight consequences. It flags the potential for delivery delays, additional cargo handling, road and rail heat impacts, and missed delivery windows that can leave trailers waiting in yards or loads needing to be unloaded and reworked. The article also points to possible renewed pressure on the Panama Canal, where draft restrictions and vessel delays can cascade into space shortages and higher pre-peak-season freight costs.

Why weather disruption quickly becomes an insurance dispute

For logistics teams, the most important point is that physical disruption often mutates into a documentation and liability problem.

Rerouting and rehandling raise damage exposure

Cargo that misses its planned path is often touched more times than originally expected. A container that would have moved port-to-ramp-to-consignee may instead be diverted, grounded, cross-docked or partially unpacked. Every additional lift, transfer or temporary hold increases the chance of physical damage, misdelivery or contamination.

Storage-in-transit is not a trivial detail

When a lane breaks down, cargo may sit at a terminal, forwarder warehouse, off-dock yard or subcontractor facility longer than the original transit plan contemplated. Whether that exposure falls neatly within cargo terms can depend on time limits, location definitions and whether the storage was incidental to transit or became a separate warehousing risk.

Delay costs are often where expectations diverge

A late shipment can trigger production downtime, missed vessel cutoffs, demurrage, detention, customer penalties or lost sales. But delay-related financial loss is frequently treated differently from physical cargo loss and may not be covered unless specifically arranged. That is why improvised disruption responses can create painful surprises even when the cargo itself is ultimately delivered.

Declared-value discipline matters more in volatile conditions

If freight rates, duties, replacement costs or the value of project cargo have moved since renewal, underinsurance becomes easier to miss. That is especially relevant in heavy industry and capital projects, where replacement lead times and expediting costs can sharply exceed invoice value.

IUMI’s warning on freight-forwarding liability

The second late-September development is more structural. In a September 22 press release issued during its annual conference in Rotterdam, IUMI said freight-forwarding liability is “an important subline of marine insurance” but has received less systematic attention internationally than cargo insurance.

IUMI said freight forwarders now occupy a more central role in global supply chains as geopolitical tension, conflict and trade disruption force service providers to find alternatives and manage crises in real time. Matthias Kirchner, an IUMI executive committee member, said the forwarder’s role is becoming “increasingly a strategic role” but that, unlike cargo insurance, “there is no globally consistent wording for freight forwarding liability insurance.” He added that legal and regulatory frameworks vary significantly between countries and insurers generally use their own wordings.

That matters because service failures during disruption do not always sit cleanly with one party. A loss can turn on whether the issue was cargo damage, a carrier error, a subcontractor failure, a documentation lapse, a customs misstep, or an operational decision made by a forwarder trying to keep freight moving. IUMI’s list of areas requiring more attention included subcontractor oversight, documentation and information management, contractual arrangements, incident and claims response, and appropriate liability insurance.

In other words, the harder the network is to operate, the more consequential the forwarder’s decisions become, and the more important it is to know in advance which liabilities are assumed, limited, excluded or passed through.

Australia is the immediate trigger, but the lesson is broader

Australia is at the front of this story because Southern Hemisphere summer is approaching and the insurance guidance this week was issued there. But the operational lesson is broader than Australia alone.

Australia’s freight system is large and already sensitive to network interruptions. The BITRE Yearbook 2025 says the domestic freight task reached an estimated 786 billion tonne-kilometres in 2024-25. The federal National Freight Data Hub also provides a national view of road closures, hazards and network conditions, underscoring how quickly weather-driven incidents can reshape route availability.

That does not prove this season will repeat prior disruption patterns, and it should not be read that way. But recent Australian rail and flood disruptions are a useful reminder that freight fragility is often revealed only after operators are forced onto fallback routings, alternate terminals or constrained inland corridors. Similar logic applies elsewhere when drought, canal limits, wildfire, flood or heat stress interrupt normal execution.

This is also why the story sits naturally after CAP’s recent coverage of how record diesel prices are now hitting the freight invoice. Fuel inflation is visible. Insurance friction is often not, at least not until a claim, exception or renewal meeting exposes it.

What remains uncertain

It is too early to claim that premiums are rising everywhere or that all weather-linked disruption will translate into insured losses. The more defensible conclusion is narrower: insurers, marine insurance bodies and risk engineers are signaling heightened scrutiny of exposure, values, routing assumptions and liability wording ahead of a potentially disruptive summer.

It is also important not to overstate the climate signal. El Niño increases the probability of certain conditions, but local impacts can vary sharply by geography, timing and infrastructure resilience. The insurance consequence is not simply “more bad weather.” It is more decision points under pressure, and more chances for a shipment to move outside the assumptions embedded in its original plan or policy.

A practical pre-summer checklist for freight buyers

A useful response is less about prediction than preparation:

• Review exposed lanes, especially those dependent on heat-sensitive inland corridors, bushfire-prone regions, constrained canal routings or single-access industrial sites.
• Recheck insured values against current freight costs, duties, replacement values and any project-specific expediting exposure.
• Confirm how cargo policies treat storage in transit, temporary holding, rerouting and additional handling.
• Revisit customer service commitments that may create uninsured delay or consequential-loss exposure.
• Audit subcontractor and broker controls, including warehouse operators, dray providers, customs agents and emergency routing partners.
• Tighten documentation discipline around instructions, exceptions, delivery changes and incident logs.
• Review contracts and standard trading conditions to see where forwarding liability may begin, end or conflict with carrier terms.
• Test fallback routings and communications protocols before disruption forces improvised decisions.

For CAP Logistics readers, the practical takeaway is straightforward: before summer disruption intensifies, this is a good time to review not just rates and lanes but also declared values, contingency routings, subcontractor controls and liability wording on critical moves.