This is the third straight weekly drop this season. The EU grain trade group Coceral has already cut its regional production forecast, pointing toward higher import demand as harvest approaches.
France's corn crop conditions worsened again in the week ending July 6, according to the country's FranceAgriMer market office.
The decline came as the third wave of extreme heat to hit the country since late May continued to stress the nation's largely unirrigated corn acreage during its most heat-sensitive growth stage.
Key Facts:
- France's corn crop rated good-to-excellent fell to 47% as of July 6, 2026, down 10 percentage points from 57% the prior week and 28 points below the same week last year, according to FranceAgriMer.
- The EU grain trade association Coceral cut its regional corn production forecast by nearly 8% to 52.7 million tonnes (citing French and Hungarian weather damage), the bloc's lowest forecast since 2007.
- The decline follows the third wave of extreme heat to hit France since late May, striking during corn's pollination stage on a crop where irrigation reaches under a third of the national acreage.
French Corn Crop Ratings Fall to 47% in Latest FranceAgriMer Report
FranceAgriMer's weekly Céré'Obs bulletin rated 47% of the national corn crop as good to excellent as of July 6, 2026, down 10 percentage points from 57% the previous week and 28 points below the 75% recorded on the same date last year.
The report was published July 10, four days after the observation window it covers. France's Agriculture Ministry separately estimated in preliminary figures that extreme weather may have damaged as much as 30% of the country's corn output this season, according to Bloomberg.
Third Heat Wave Since May Hits Corn During Pollination
The deterioration follows the third wave of extreme heat to hit France since late May. It arrived as much of the country's corn crop entered pollination, the stage when the plant is most vulnerable to heat stress.
Irrigation reaches under a third of the country's corn area, so most of the crop had no buffer against the combination of high heat and limited rainfall. "Should the heat further reduce yield potential," corn and wheat prices could extend recent gains, Joe Davis, director of commodity sales at Futures International LLC, said, according to Bloomberg.
Chicago's most-active corn futures contract rose 1.9% on July 6, the first trading day after the FranceAgriMer report, following a US holiday closure.
France's corn condition rating has now fallen 29 percentage points in three weeks, a steeper drop than the same stretch last year, when the rating held closer to 81%, according to La France Agricole and Paysan Tarnais.
Forecasters differ on how large the shortfall will be.
Coceral's estimate puts French output at 9.4 million tonnes, a steep pullback from last year's 13.8 million tonnes. Expana is more pessimistic.
Senior grain analyst Benoit Fayaud said the firm projects 8.9 million tonnes, roughly a third smaller than 2025's harvest, and sees scope for production to drop under 8 million tonnes, a level France hasn't seen since 1976, Reuters reported.
The French growers' association AGPM has estimated a smaller decline still, to 9.5 million tonnes, which its head, Franck Laborde, called the lowest this century, and said the group expects to revise down further.
The estimates come from three different organizations using different methods and timing, and should be read as competing figures rather than one confirmed number.
In western France, some farmers have already begun cutting non-irrigated corn before pollination to salvage the plants as livestock feed rather than let a failed crop stand, Laborde said.
Coceral Cuts EU Corn Forecast to Lowest Since 2007
Coceral's EU-wide corn forecast now stands at 52.7 million tonnes, a nearly 8% reduction from its previous estimate and short of last year's 57.4-million-tonne harvest. It's the trade group's weakest corn outlook since 2007.
Coceral attributed the cut primarily to weather damage in France and Hungary. The group's forecast was issued as an extraordinary, unscheduled update in response to the ongoing heat wave, outside its regular reporting calendar.
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