El Niño 2026–27: What Could It Mean for Global Grain Prices and the Market Outlook?

The global grain market is entering the 2026–27 season with a combination of weather uncertainty, changing production forecasts, tighter inventories in some major markets and significant geopolitical and logistical risks.

At the centre of this uncertainty is the development of a potentially very strong El Niño. NOAA currently estimates a greater than 90% probability of a very strong El Niño during the Northern Hemisphere autumn and winter of 2026–27, while the probability of a historic-strength event during October–December stands at 75%.

But what does this mean for grain prices?

The answer is more complicated than simply expecting a broad-based price rally.

El Niño does not automatically mean higher grain prices

Weather is one of several forces determining grain prices.

An El Niño event can increase production risks in some regions while improving conditions in others. The final impact on prices therefore depends on the balance between global production, consumption, stocks and trade availability.

Current market conditions illustrate this clearly.

FAO reported that its Food Price Index rose in August to its highest level since November 2022, with adverse weather, geopolitical developments and Black Sea trade disruptions contributing to higher prices.

However, this does not mean that all grains are moving in the same direction. Individual commodities remain highly dependent on their own supply-and-demand fundamentals.

Wheat: lower production, but substantial supplies

The wheat market will remain one of the most important areas to monitor.

Global 2026/27 wheat production is expected to be lower than the previous season, with weather conditions in Australia and other major producing regions contributing to the risk profile. At the same time, global wheat supplies remain substantial and large exporters continue to compete for international demand.

The September USDA outlook illustrates this mixed picture. Its latest projections leave total U.S. wheat production broadly unchanged while global wheat ending stocks are projected to increase by around 3 million tonnes.

This is an important reminder that declining production does not automatically create a shortage.

For wheat prices to move substantially higher, the market would likely need to see a combination of lower production, stronger demand, declining stocks and/or significant disruption to export availability.

Corn could become more sensitive to weather and stocks

The corn market may be more exposed to tightening conditions if production forecasts continue to decline while demand remains firm.

USDA's September outlook reduced projected U.S. 2026/27 corn ending stocks by 86 million bushels to 1.567 billion bushels and raised the projected season-average farm price to $4.80 per bushel.

Earlier USDA projections had already shown declining U.S. feed-grain stocks, with August estimates putting 2026/27 corn ending stocks at about 42 million tonnes.

This does not indicate an immediate global corn shortage. It does, however, suggest that the market may become increasingly sensitive to further weather surprises.

If El Niño produces unfavourable conditions in additional producing regions, relatively smaller changes in production could have a larger influence on prices when inventories are already under pressure.

Feed markets could feel the effect indirectly

For the feed industry, grain prices cannot be considered in isolation.

Corn, wheat and soybean meal compete within feed formulations according to nutritional requirements, availability and relative prices. Any significant change in one commodity can therefore alter demand for another.

The September USDA outlook also raised its U.S. soybean meal price forecast to $340 per short ton while reducing projected soybean ending stocks.

This could add another layer of uncertainty for feed manufacturers.

If corn becomes more expensive, feed producers may adjust formulations where technically and economically possible. If both energy and protein ingredients become more expensive simultaneously, however, the ability to absorb higher raw-material costs becomes considerably more limited.

Stocks will be one of the most important indicators

Perhaps the most important factor to watch during the coming months will be stocks relative to consumption.

Large inventories provide the market with a buffer against temporary production problems. Lower stocks, by contrast, make markets more vulnerable to weather shocks.

This is why the same El Niño event can produce very different price consequences depending on the starting point of the market.

If global inventories remain comfortable and alternative exporters can compensate for regional losses, price effects may remain relatively limited.

If production problems occur simultaneously in several major exporting regions, however, the market may have considerably less room to absorb the shock.

2027 could be defined by volatility

The most likely scenario is therefore not necessarily a straight upward movement in grain prices.

Instead, the 2026–27 season could be characterised by greater volatility and faster price reactions to new information.

Weather forecasts, crop condition reports, export sales, stock estimates and shipping developments could trigger significant changes in market expectations even before actual production losses become clear.

This could be particularly important for international grain traders, flour mills, feed manufacturers and livestock producers managing procurement decisions several months ahead.

What will determine the market direction?

The global grain market will ultimately be shaped by the interaction of several factors:

• The actual strength and duration of El Niño
• Crop conditions in Australia, the Americas, Europe and Asia
• Global wheat and corn production
• U.S. and global ending stocks
• Soybean and soybean meal availability
• Black Sea export and logistics conditions
• Global grain demand
• Energy and fertilizer costs
• Freight rates and shipping availability
• Currency movements
• Government trade policies and export restrictions

The key point is that El Niño should be viewed as a risk multiplier rather than a standalone price signal.

It can amplify existing weaknesses in the global grain system, particularly when inventories are declining or trade routes are already under pressure. But favourable harvests elsewhere, strong stocks or weaker demand can limit its effect.

The bigger picture

The 2026–27 grain season is therefore unlikely to be defined by El Niño alone.

Instead, El Niño will interact with production trends, inventories, geopolitics, energy markets and international trade. The result could be a market in which regional supply disruptions have a greater influence on global prices and where trade flows adjust more rapidly between exporting countries.

For the global grain industry, the most important lesson is therefore not to ask whether El Niño will push prices higher.

The more useful question is:

How much additional supply risk can the global grain market absorb before stocks, trade flows and prices begin to respond significantly?

That will depend on how the weather develops over the coming months—and on how quickly the global grain trade adapts.

The 2026–27 Outlook

For now, the most reasonable assessment is one of cautious uncertainty rather than a definitive bullish or bearish forecast.

Global grain markets still have substantial production and trade capacity, but several important buffers are becoming less comfortable. A strong El Niño could increase pressure on selected crops and regions, while existing geopolitical and logistical disruptions could make it harder to replace lost supplies.

The coming months will therefore be critical.

For grain traders, millers, feed manufacturers and agricultural businesses, monitoring production, stocks and trade flows together will be more important than focusing on any single weather indicator.

El Niño may be the headline risk for the 2026–27 season—but the final market outcome will be determined by how the entire global grain system responds.