Seasonal climate forecasts indicate the potential for a record-strong El Niño event in 2026. How commodity markets will respond to this potential historic climate shock has become one of the most pressing questions for investors.
According to analysis, a recent cross-asset research report highlights that oil and gas prices are the most immediately responsive commodities within an El Niño cycle. Historically, El Niño events tend to bring warmer winters to the Northern Hemisphere, suppressing heating demand and inhibiting Atlantic hurricane activity, thereby concurrently weighing on both natural gas and crude oil prices. Meanwhile, tropical agricultural products concentrated in Southeast Asia, such as palm oil, coconut oil, and rubber, have historically demonstrated the strongest upward price elasticity. Following a strong El Niño event, prices for these commodities have risen by 30% to 40% within 18 months.
The analytical framework categorizes commodity responses to El Niño into three tiers: energy commodities react first, tropical agricultural products follow, and the response from industrial metals is significantly delayed, often not materializing until a year after the event. This timing differential provides investors with a potential roadmap for phased positioning. It is important to note that the report cautions that historical price movements reflect statistical patterns, not predictions of future performance, as macro conditions, supply-demand fundamentals, and geopolitical factors can dominate the actual outcome of any individual event.
Energy: First to React, But Directionally Lower
Within an El Niño cycle, natural gas and crude oil exhibit the fastest price response, but in the opposite direction to tropical agricultural products—historical data shows their prices tend to weaken.
Analysis shows that under El Niño conditions, European natural gas prices have historically been 9% to 28% below their trend levels, with greater deviations associated with stronger events. The transmission mechanism is clear: El Niño brings warmer Northern Hemisphere winters, reducing heating demand, boosting end-of-winter storage levels in Europe, and subsequently dampening summer LNG restocking demand. If the 2026/27 winter is mild, European end-of-winter stocks could be significantly above normal, creating sustained downward pressure on prices.
For U.S. natural gas, strong El Niño events have historically been more predictive of warm winters than other weather patterns. The 2015-16 El Niño, with an index of 2.8, saw winter Heating Degree Days (HDD) drop 16% below the prior seven-year average. Current climate models suggest this El Niño's index could track to +3 to +4, implying a 15% to 20% downside risk to winter HDD, corresponding to a demand loss of roughly 4 to 5 Bcf/d. Combined with continued growth in price-insensitive associated gas supply from the Permian Basin, the downside risk for U.S. gas prices is pronounced.
Regarding crude oil, its price is better viewed as "La Niña-sensitive" rather than "El Niño-sensitive." Historically, oil prices have been 5% to 30% below trend during El Niño phases, while averaging 17% to 40% above trend during La Niña phases. Price increases in the later stages of an El Niño event largely reflect the subsequent drivers from a La Niña phase, rather than a delayed effect of El Niño itself.
Tropical Agricultural Products: Greatest Elasticity, High-Conviction Trades
The report identifies palm oil, coconut oil, and rubber as having the strongest El Niño sensitivity and highest historical conviction within the commodity complex. Their common feature is production highly concentrated in Southeast Asia, the region most vulnerable to the high-temperature and drought impacts of El Niño.
Palm oil is considered the highest-conviction El Niño trade. Indonesia and Malaysia together account for nearly 90% of global supply. Research estimates that an average El Niño event can reduce palm oil production by about 3%, cut stocks by about 2.5%, and lift prices by about 10%. Historical analysis further shows that following a strong El Niño event, actual prices rose about 26% after 12 months, climbing to nearly 40% after 18 months. A sample of very strong events shows a 12-month gain of about 34%. Notably, palm oil prices often trade below trend during the El Niño event itself, suggesting the initiation phase may present a positioning window rather than the period of strongest price performance.
Coconut oil production is highly concentrated in the Philippines and Indonesia. Estimates suggest the 2024 El Niño reduced Philippine coconut oil production by nearly 12%. Analysis indicates that following a moderate El Niño event, actual coconut oil prices rose about 16% after 12 months and about 25% after 18 months. A strong El Niño corresponds to an 18-month gain of about 33%, while a sample of very strong events shows gains could reach 50% to 60%.
For natural rubber (RSS3), Thailand, Indonesia, and Vietnam together account for the majority of global supply. El Niño-induced high temperatures and drought reduce latex flow, shorten the tapping season, and lower output. During the 2023-24 El Niño, Thai production is estimated to have fallen about 10%, with Indonesian output down about 15%. Historical analysis shows that after a moderate El Niño event, rubber prices rose about 8% to 10% over a year, while a strong El Niño corresponds to gains of about 15% to 20%. The statistical relationship is robust, though gains vary significantly between individual events.
Soybean oil follows a different logic. Its main production regions are concentrated in the Americas, where El Niño is typically beneficial. However, soybean oil directly competes with palm and coconut oils in global food and biofuel markets, so its price is significantly affected by spillover effects from tightening tropical oilseed supply. Its sensitivity to El Niño is higher than that of soybeans themselves but lower than that of palm and coconut oils.
For rice, El Niño affects prices by weakening the Indian summer monsoon and increasing drought risks in major producers like India, Thailand, Vietnam, Indonesia, and the Philippines. Following a moderate El Niño event, historical rice price gains were about 5% to 8% over 12 to 18 months, with strong El Niño events corresponding to gains of about 10% to 20%.
Industrial Metals: Delayed Response, Aluminum Stands Out
Unlike agricultural products, industrial metals generally show a lagged response to El Niño, with varying signal strength. Aluminum exhibits the clearest El Niño sensitivity among industrial metals, while copper's signal is relatively weak.
Aluminum's transmission mechanism is clear: China's Yunnan province hosts about 6.6 million tonnes per year of primary aluminum capacity (roughly 9% of global output), and the province's power supply is heavily reliant on hydropower (about 60% to 70%). El Niño systematically weakens the Bay of Bengal summer monsoon, leading to insufficient reservoir levels in Yunnan, which in turn forces smelters to cut capacity. Drought in 2015-16 led to about 300,000 tonnes of capacity cuts, while the 2023-24 drought triggered curtailments of about 1.15 million tonnes. If a super El Niño this cycle repeats a 20% curtailment, about 1.3 million tonnes of aluminum output could be at risk, representing about 1.7% of global supply. On price, aluminum often trades soft during the El Niño event itself but gradually strengthens over the subsequent one to two years.
For copper, northern Chile's Atacama/Antofagasta/Tarapacá region concentrates about 4.2 million tonnes per year of copper capacity (about 17% of global supply), which was the epicenter of severe flooding in March 2015. If a super El Niño in 2026-27 peaks around October-November 2026, the high-risk window for heavy rainfall would be February-April 2027. However, historical analysis shows the statistical relationship between copper prices and El Niño is relatively weak, with macroeconomic conditions, Chinese demand, and energy transition investment exerting far greater influence on prices than weather factors.
Thermal coal exhibits the most delayed response. Historical data shows coal prices often strengthen significantly only in the second year following an El Niño event, driven by factors like reduced Asian hydropower generation, increased cooling demand, and tightening seaborne markets.
Other Agricultural Products: Complex Signals, Distinguishing Effects
The response of staple crops like corn, soybeans, wheat, and sorghum to El Niño is more complex, and the report takes a cautious view on the El Niño signal for these commodities.
A common feature for these crops is that El Niño often improves growing conditions in major American production regions, leading to price weakness early in the event. Subsequent price recoveries are likely driven by the following La Niña phase, rather than a delayed effect of El Niño itself. Analysis of grains and cotton should focus on price responses within 12 months of an event's onset, rather than over longer windows.
Cocoa's historical performance shows high variability between events, with a few major supply shocks contributing to most of the observed price signals. Robusta coffee, with main producers Vietnam and Indonesia directly exposed to El Niño drought risk, historically saw price gains of about 7% to 13% 12 months after a strong El Niño, though statistical evidence is weaker than for commodities like palm oil.
La Niña—particularly persistent La Niña—often produces a clearer market response than El Niño itself. During the persistent La Niña from 2020 to 2023, significant volatility was observed across several commodity markets, including sugar and energy. This implies investors need to monitor not only the current El Niño cycle but also closely track potential market opportunities arising from a subsequent La Niña phase.
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