Rioja Projects a 2026 Harvest Ahead of Last Year’s Schedule

The Regulatory Council of Spain’s Rioja Qualified Designation of Origin said Thursday that vineyards across the appellation are in good health as the 2026 growing season moves toward harvest, with ripening progressing normally and fruit development pointing to an earlier start to picking than last year.

In its fourth ripening bulletin of the season, released on Aug. 27, the council reported on samples taken in Rioja Alta, Rioja Alavesa and Rioja Oriental, the three main production areas that make up the denomination. The council said the vineyard’s vegetative cycle is advancing under generally favorable conditions across the territory, and that the overall sanitary status of the crop remains good.

The bulletin said average berry weight in Rioja Oriental is showing signs of stabilization. Those figures were slightly below the previous report, a change the council linked to the high temperatures recorded in recent days. In Rioja Alta and Rioja Alavesa, the first available measurements were generally higher, though still within normal ranges.

Sugar accumulation also continues to move upward as grapes ripen. The council said the increase in probable alcohol content has followed the expected pattern for this stage of the season, although the rise in Rioja Oriental has been more moderate than in the other two zones. In Rioja Alta and Rioja Alavesa, probable alcohol levels were noticeably above those recorded on the same dates in the 2025 campaign, reinforcing the council’s estimate that the harvest across Rioja is running 10% to 15 days ahead of last year’s schedule.

Acidity indicators are also evolving in line with ripening. Total acidity continued to decline, as expected, though the weekly drop was less pronounced in Rioja Oriental. In Rioja Alta and Rioja Alavesa, total acidity was clearly below the levels seen at the same point in the 2025 season. The council also reported a significant decline in malic acid in all three zones, another sign of advancing maturity. pH values, meanwhile, were generally higher than those registered at equivalent dates last year.

The bulletin said phenolic ripeness, a key measure for red wine quality because it reflects the development of skins, seeds and color compounds, continues to show a favorable trend. That assessment suggests that, beyond sugar and acidity, the grapes are advancing well in the components that affect structure and balance in finished wines.

The report comes as growers across many European wine regions continue to manage the effects of summer heat and uneven water availability. In Rioja, the council’s technical services said forecast cooler nighttime temperatures should support good ripening conditions in the coming days. At the same time, they advised very close monitoring of vineyard plots that have been more severely affected by water stress and high temperatures, since those parcels may develop differently from the broader regional average.