The summer of 2026 is putting European agriculture under severe pressure. Repeated heatwaves, drought and wildfires are affecting crops at different stages, accelerating harvests and reducing expected yields.
The impact extends beyond the Mediterranean, with significant pressure also reported in France, Germany, Hungary, Poland and the United Kingdom.
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Cereals: billions of euros at risk
Cereals are among the crops most affected. Estimates by Coceral, the European association representing grain traders, indicate that the June heatwave reduced projected cereal production in the EU and UK by almost 9 million tonnes, corresponding to an estimated loss of around euro 2.1 billion.
France is expected to suffer the largest reduction, at approximately 4.1 million tonnes, worth around euro 891 million. Hungary could lose about euro 444 million in agricultural value.
The Joint Research Centre (JRC) has cut projected yields for winter crops by 1-4%, while forecasts for grain maize and sunflower have been reduced by 6-7%. Overall EU cereal production is expected to remain around 1% below the five-year average.
Harvests are arriving earlier
Heat does not only reduce yields. It is also changing the agricultural calendar. Repeated heatwaves have shortened the grain-filling period of winter cereals, accelerating maturation and bringing harvests forward. In southern Europe, harvesting had already been completed by the end of July.
The same phenomenon is affecting fruit production. High temperatures can accelerate ripening and colouring while reducing the water available for fruit development. The result can be a combination of earlier harvesting, smaller fruit and lower marketable yields.
Vineyards: an early harvest in France
The wine industry provides one of the clearest examples. In major French wine regions, including Champagne, Bordeaux and Burgundy, heat and drought are putting additional pressure on vineyards.
According to Reuters, Champagne’s harvest could begin around 15 August, roughly one month earlier than historical standards in some periods, while preliminary production estimates point to a decline of about 10% compared with 2025.
The consequences are not limited to volumes. Heat can increase sugar concentration in grapes, potentially affecting alcohol levels and the characteristics of the resulting wine.
Italy: maize and summer crops under pressure
Italy is also experiencing significant agricultural stress. JRC monitoring identifies particularly difficult conditions in parts of northern and central Italy, where heat stress has affected maize during flowering. Early-flowering varieties may have suffered reduced fertility.
The impact is expected to be strongest in non-irrigated fields, where high temperatures combine with reduced water availability.
The effects nevertheless vary considerably according to water resources, soil characteristics, crop varieties and the stage of plant development.
France, Spain and Central Europe
France is among the countries most severely affected. Extreme heat has coincided with low soil moisture, affecting both winter and summer crops.
In Spain, winter crops in regions such as Castile and León have experienced accelerated cereal maturation. Other areas have faced less severe effects, although high temperatures remain a risk for crops still in the fields.
In Central Europe, the most serious problems arise when extreme heat combines with prolonged water deficits, reducing soil capacity to sustain plant growth and limiting the effectiveness of irrigation.
Livestock is also affected
The problem extends beyond crops. Extreme temperatures also affect livestock farming. Heat stress can reduce animals’ feed intake, increase water consumption and lower productivity. In severe cases, mortality can also increase.
For farmers, this means higher costs for water, feed, ventilation and cooling, while heat can simultaneously reduce animal productivity.
The second front: wildfires
Heat and drought are being compounded by wildfires. The 2026 fire season is proving particularly severe. By the end of July, France had already recorded more than 91,000 hectares burned, exceeding its previous annual record of just over 66,000 hectares.
Spain had recorded more than 200,000 hectares burned, equivalent to approximately 0.4% of its national territory. Across the European Union, estimates available in early August indicated approximately 500,000 hectares burned in 2026.
Not all burned land is agricultural, but fires can directly destroy vineyards, olive groves, orchards, pastures and crops, while also damaging irrigation systems and rural infrastructure.
A potential impact on food prices
The final impact extends into the food supply chain. Lower yields can mean reduced availability, greater reliance on imports and higher costs for processors, farmers and retailers.
In the United Kingdom, for example, heat and drought are putting pressure on supplies of wheat, barley, oats, potatoes, broccoli and olives, with potential consequences for supermarket sourcing strategies.
The issue therefore extends beyond agriculture. A prolonged period of heat and water scarcity can affect the entire chain, from farm to consumer.
Agriculture is increasingly exposed to extreme weather
The European Commission estimates that agricultural losses caused by drought and heatwaves have tripled over the past 50 years.
The 2026 season adds further evidence: earlier harvests, lower yields, greater irrigation requirements, livestock stress and extensive wildfires.
The key issue is the simultaneous occurrence of several risks. When heat, drought and fires hit the same regions during the same agricultural season, the consequences can extend beyond individual farms, affecting European food production, supply chains and price stability.
