Limburg winegrowers anticipate top quality harvest despite spring frost and dry summer

Limburg's wine producers are gearing up for the 2026 harvest with high expectations for quality, even as they navigate the challenges of spring frost and a summer marked by heat and drought. The season is off to an exceptionally early start, with the grape harvest beginning in early August, a significant shift from the usual September or October timeframe.

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We are only August 10th but everything has to be prepared already.

Karel Henckens, a winemaker at Wijndomein Aldeneyck in Maaseik, noted the rapid onset of the season, attributing it to an early spring and sustained warm weather. "It's incredible how these excesses of climate change follow one another," he remarked. While older vineyards, with their deep root systems, are proving resilient to the dry conditions, younger vines have needed irrigation. Henckens contrasted this with France, where irrigation is prohibited as a quality measure, and vineyards have suffered from the drought.

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It's incredible how these excesses of climate change follow one another. The good weather started very early in the spring and continues.

At Wijnkasteel Genoels-Elderen in Riemst, Joyce Van Rennes reported that extreme dryness temporarily halted the ripening process, causing "stress hydrique" in the vines. They anticipate starting their harvest in early September. Van Rennes predicts 2026 will be the third year of major extremes, following 2003 and 2018. This will result in "atypical" wines with riper, more tropical aromas, and softer tannins, giving them a more southern character. Red wines, like Pinot Noir, are expected to be particularly good, though alcohol levels may be higher.

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Our vines over 25 years old root very deeply and are not bothered by it. The grapes look fantastic.

For sparkling wines, the persistent heat poses a challenge as it rapidly reduces acidity, a crucial component for quality bubbles. Henckens explained that to preserve acidity, they will begin picking grapes for sparkling wine within a week. "We measure every three to four days and bite the pips of the grapes to feel the phenolic ripeness of the tannins," he said, emphasizing the meticulous process to balance sugar and acidity in a challenging climate.

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Fortunately, that is allowed in Belgium. In France, irrigation is forbidden as a quality rule, but we recently saw many vineyards literally withering from the drought.