El Niño is surging toward a record—what it could do to food, dairy and global markets by year-end

US forecasters say El Niño has strengthened over the past month and is highly likely to peak between October and December, with the latest assessment pointing to an 81% chance of El Niño conditions. The US Climate Prediction Center (CPC) is warning the event could “rank among the largest” on record, implying a stronger-than-usual shift in tropical Pacific sea-surface temperatures and associated atmospheric circulation. Separate reporting highlights that the strengthening trajectory is continuing into mid-2026, not fading, which raises the probability of sustained climate impacts through the traditional peak window. A third article focuses on how food and agriculture—specifically dairy—could be affected, signaling that the market relevance is not just meteorological but supply-chain and pricing. Geopolitically, a record-leaning El Niño matters because it can reallocate rainfall and heat across multiple breadbasket regions, changing harvest prospects and water availability in ways that can amplify domestic political pressures. When climate shocks hit food systems, governments often respond with subsidies, export controls, or emergency imports, which can strain trade relationships and raise the risk of policy-driven volatility. The US forecaster’s framing—“among the largest”—benefits the US as a source of early warning and can shape expectations for global commodity hedging, but it also puts pressure on policymakers and industry planners elsewhere. Dairy and broader food sectors are particularly sensitive because feed costs, pasture productivity, and milk yields can move quickly, turning weather uncertainty into financial uncertainty. In short, the power dynamic is between climate-driven supply risk and market pricing, with governments and commodity traders positioned to react. Market and economic implications are likely to concentrate in agricultural inputs and food categories, with dairy-sensitive supply chains facing elevated uncertainty. If El Niño strengthens toward a record, investors typically price higher volatility in soft commodities, and dairy-linked instruments can see repricing as feed and production outlooks change; the dairy-focused coverage suggests attention on milk output and feed economics rather than only crop acreage. While the articles do not name specific tickers, the direction of risk is clear: higher probability of adverse or uneven growing conditions can lift expected costs and widen spreads for staples, especially where weather-sensitive production overlaps with import dependence. Currency effects are possible indirectly through commodity terms-of-trade, but the immediate transmission mechanism is through food inflation expectations and risk premia in agricultural futures and related equities. The magnitude is best characterized as “high volatility risk” rather than a guaranteed single-direction price move, because El Niño impacts vary by region and can be offset by good conditions elsewhere. What to watch next is the CPC’s subsequent monthly updates to the probability of El Niño conditions and the forecasted peak strength through October–December. Key indicators include changes in the ensemble probability (the current 81% figure), the projected Niño indices used by forecasters, and any shift in confidence language from “highly likely” toward “very likely” or “near-certain.” For markets and food producers, the trigger points are early-season planting and pasture/feed indicators in major dairy and grain regions, because those determine whether costs rise faster than demand. If the event continues to strengthen, expect increasing hedging activity in agricultural futures and more frequent guidance from food and dairy firms on procurement and pricing. Conversely, if forecasts begin to weaken or peak timing shifts materially, volatility could de-escalate, reducing the urgency for emergency procurement and policy interventions.

Geopolitical Implications

• 01

  A record-leaning El Niño can intensify food-price volatility, increasing the likelihood of subsidy or import/export policy interventions that strain trade relations.

• 02

  Early US forecasting can shape global market expectations and hedging behavior, but it also shifts pressure onto governments and firms to plan for Q4 disruptions.

• 03

  Climate-driven supply shocks can become political stress multipliers in import-dependent countries, raising the risk of regional instability through economic channels.

Key Signals

• —Next CPC monthly update: changes to the 81% probability and forecast peak strength language
• —Trends in Niño indices and ensemble spread (confidence narrowing vs widening)
• —Early indicators for pasture/feed conditions and milk output in major dairy-producing regions
• —Commodity volatility measures and widening spreads in dairy/feed-linked futures