# Climate impact on Iberian viticulture

> Live situation record from CLSTR: https://clstr.news/situations/climate-impact-on-iberian-viticulture
> Updated: 2026-09-20T10:55:30.000Z. Sources: 4. Developments: 2.

Research and data mapping are being used to understand the impact of climate change on viticulture in the Iberian Peninsula.

In Portugal, studies in the Dão region have compared the 2023 and 2024 growing seasons to determine how temperature and precipitation affect the aromatic potential of six traditional grape varieties. Additionally, the World Winery Map has provided comparative climate data, noting that the Alentejo and Algarve regions experience significantly higher average temperatures during the vegetative period than major producers like Bordeaux, France, and Rioja, Spain.

In Spain, research in the Priorat region has focused on identifying indigenous wild yeasts. These yeasts are being utilized in micro-vinifications to help maintain wine typicity and mitigate climate change effects by potentially reducing volatile acidity and enhancing aromatic complexity.

## Timeline

### 2026-09-20: World Winery Map reveals high temperatures in Portuguese wine regions

Data from the World Winery Map shows Portuguese wine regions Alentejo and Algarve experience significantly higher vegetative temperatures than Bordeaux and Rioja, respectively.

2 sources. https://clstr.news/cluster/world-winery-map-reveals-high-temperatures-in-portuguese-wine-regions

### 2026-09-03: Viticulture research examines climate impact on Iberian wines

Scientific studies in Portugal and Spain are exploring how grape varieties, seasonal climate shifts, and indigenous wild yeasts can preserve wine quality and aromatic profiles amidst climate change.

2 sources. https://clstr.news/cluster/viticulture-research-examines-climate-impact-on-iberian-wines

---
Cite as: Climate impact on Iberian viticulture. CLSTR, https://clstr.news/situations/climate-impact-on-iberian-viticulture