El Niño’s economic impact travels far beyond the Pacific

• El Niño begins with warmer Pacific waters, but its economic consequences can extend across global supply chains.

• Soft commodities, metals, power

• generation and transport may all be affected, with significant regional differences.

• Upstream and downstream producers face different combinations of price, volume and margin exposure.

El Niño is an ocean phenomenon with consequences that can reach far beyond the Pacific. By shifting rainfall, temperatures and storm patterns, it touches several parts of the economy. Its relevance for markets is due to its potential repercussions on commodities, producers, processing firms, but also transport. The key questions are which supply chains are exposed, when the financial effects may emerge and how effectively companies can respond through hedging, pricing and geographic diversification.

El Niño shifts warm Pacific waters eastwards, altering rainfall patterns across several regions. It typically brings drier conditions to parts of Southeast Asia, Australia and southern Africa, and wetter weather to parts of South America and the southern United States. The effects vary with the event’s strength, duration and timing, while Europe has no consistently reliable direct signal.

Agriculture is one of the clearest transmission channels. We identify five main impacts:

1.     A weaker Indian monsoon may weigh on the production of sugar cane, rice and other crops;

2.     Dryness in Indonesia and Malaysia can affect palm oil and robusta coffee output;

3.     Australia may face pressure on wheat and canola output;

4.     West African cocoa production can be vulnerable to dry winds and rainfall disruption;

5.     Wetter conditions can improve soil moisture for corn and soybeans in Argentina, potentially providing some offset to shortfalls elsewhere.

The resulting commodity effect is therefore unlikely to be uniform. Global trade flows matter as much as local harvests. Better output in Argentina or the United States could compensate for losses in another region, while crops concentrated in only a few exporting countries may be more sensitive. Inventories, export restrictions and the timing of weather during planting or flowering can also be decisive.ncreasing emphasis on the amount of profit and cash Uber can generate from each additional transaction, rather than looking at revenue growth in isolation.

Even when adverse weather reduces production, the impact on soft commodities’ exposed corporates usually arrives with a delay, for three main reasons:

1.     Agricultural inventories need to decline,

2.     Procurement contracts need to be reset and

3.     Existing hedges must expire.

As a result, large food manufacturers often secure raw materials months in advance, meaning that a late-2026 weather shock may become more visible in margins during 2027 rather than immediately.

For example, for chocolate and packaged-food producers, cocoa is a prominent exposure, alongside sugar, coffee, vegetable oils and grains. Passing higher costs on to consumers may prove challenging in the current inflationary environment.

The effect also varies considerably by business model. A branded food company purchasing cocoa faces a different exposure from a processor operating under cost-plus contracts, through which rising raw-material costs can be passed through.

Palm oil producers illustrate another important tension. Drought can reduce plantation yields and production volumes, but lower regional supply may support selling prices. For a producer such as Sipef, the net earnings effect would depend on whether stronger realized prices compensate for weaker output. The same volume-versus-price trade-off applies to mining companies, whose local operations may be disrupted even as tighter supply supports commodity prices.

These examples also show why sector labels can mislead. Consumer companies are not equally exposed, commodity producers do not automatically benefit from higher prices, and diversification may dilute both positive and negative effects.

El Niño’s impacts extend beyond soft commodities, with notable examples being electricity generation, mining, and transport.

Hydropower-dependent regions are particularly sensitive because lower reservoir levels reduce cheap generation and may force corporates to purchase more expensive replacement power. More specifically, aluminum production provides a useful example. Smelters require large volumes of continuous power, and part of China’s capacity has migrated to hydro-rich regions such as Yunnan. This has increased exposure to drought, as hydropower shortages can force curtailments and tighten global supply. Producers outside the affected regions, including Norsk Hydro, may benefit from firmer aluminum pricing, although hedging and local power conditions will shape the earnings impact.

Copper presents a more mixed picture. Heavy rainfall and flooding can disrupt mining operations and transport infrastructure in parts of Peru and northern Chile. These disruptions may reduce mine output and support copper prices, but higher prices do not necessarily compensate producers for lost volumes. The earnings impact therefore depends on each miner’s geographic exposure and the severity of operational disruption.

Finally, transport links form another potential transmission channel, as low water levels can restrict vessel capacity through – for instance – the Panama Canal, similarly to what happened during summer 2026 to the Rhine river in Germany. Such constraints can raise freight costs and lengthen delivery times, although the financial impact depends on the duration of the disruption and the availability of alternative routes.

The indicators to monitor therefore extend beyond Pacific temperatures. Rainfall in key producing regions, crop development, reservoir levels, inventories, freight conditions and corporate hedge maturities will help determine whether the weather signal develops into a material earnings event. Any impact is likely to remain uneven and may extend into 2027 as harvest shortfalls emerge, inventories decline and procurement contracts reset.

Conclusion

El Niño will not produce a single, predictable outcome. Its impact depends on where rain falls, when crops are hit and how quickly shortages work through inventories and contracts. Higher commodity prices may help some producers while lost output hurts others; buyers face a separate test of pricing power. Therefore, we keep a bottom-up approach at company level: mapping physical exposure, hedges and procurement cycles, and forecast whether weather disruption ultimately reach earnings in 2027.