Santorini Vineyards Face Extinction Threat As Climate Change And Tourism Growth Reshape The Island

Published on December 13, 2025

Santorini’s iconic vineyards are facing an existential threat, as the combined forces of climate change and rapid tourism growth drastically reshape the island. The once-thriving vineyards, which have been a cornerstone of local agriculture and tourism, are struggling to adapt to rising temperatures, extreme weather patterns, and overexploitation from the growing influx of visitors. With many of the island’s traditional farming practices already strained, these vineyards are at a crossroads, highlighting the urgent need for sustainable tourism practices and climate action to preserve this vital cultural heritage.

Santorini, with its iconic whitewashed villages encircling the caldera and its scattered vineyards perched on volcanic terraces, is often seen as an eternal symbol of beauty. The island, known for its dramatic landscapes and rich history, has been a center for winemaking for thousands of years. The volcanic soil, coupled with the island’s unique climate, has given rise to one of Greece’s most celebrated wine regions. Yet, despite its long-standing tradition, Santorini’s wine industry now faces an existential crisis that could change the future of winemaking on the island.

Historically, Santorini boasted between 3,000 to 4,000 hectares of vineyards. Today, however, the number has dwindled to just about 1,000 hectares, many of which are small family-owned plots. Over the past few years, extreme weather conditions—particularly droughts and heatwaves—have taken a significant toll on the island’s vineyards, pushing wine production to historic lows. At the same time, the booming tourism industry has led to an increasing demand for hotels and villas, which has further encroached on valuable vineyard land. Santorini’s famous wine export, Assyrtiko, is being squeezed between the pressures of environmental change and the rapid expansion of tourism.

The island’s vineyards, many of which are still planted on their own roots in the volcanic, sandy soil, have created one of Europe’s most historically significant wine landscapes. The unique kouloura (basket-shaped vine) training system was developed to protect the vines from strong winds and trap moisture in an otherwise dry climate. Assyrtiko, a high-acid, saline-driven white wine, dominates the island’s production, while other local varieties like Aidani and Athiri play supporting roles. Vinsanto, a sweet wine made from sun-dried grapes aged in barrels, has been a signature of Santorini for generations. These wines, especially Assyrtiko, have gained international acclaim for their crisp, mineral-driven flavors.

But recent research has confirmed that climate change is having a profound effect on Santorini’s winemaking. The island is experiencing less rainfall, higher temperatures, and increased drought stress each year. These changes have pushed harvest dates earlier, with grapes now being harvested as early as late July or early August—an alarming shift for an island that traditionally relied on later harvests to ensure grape ripening. This trend is not just a temporary blip but a worrying sign that the island’s agricultural landscape may be irreversibly altered if current conditions persist.

One of the island’s most renowned wineries reports that the past three vintages have been severely affected by drought, with rainfall dropping below 200mm annually. These conditions, compounded by early budbreak and frequent heatwaves, have led to a sharp decrease in yields. In some of the older vineyards, production has fallen by as much as 60-80%. If the current climate patterns continue, winemakers fear that the traditional dry-farmed viticulture Santorini is known for may no longer be viable within the next decade.

The issue is not just environmental; it’s economic. With tourism to Santorini growing exponentially, vineyard land is becoming more valuable for development. Fields that once produced grapes are now being sold or subdivided to make way for hotels, villas, and tourist infrastructure. This shift has left many vineyard owners struggling to balance the competing demands of a lucrative tourism industry and the declining profitability of winemaking. Grape prices have risen dramatically, making it harder for winemakers to secure the necessary investment in vine care. Many vineyard owners, whose primary income now comes from tourism, are finding it difficult to justify the continued investment in viticulture.

The production of Vinsanto has been particularly hard hit by these pressures. Vinsanto is a labor-intensive wine to produce, requiring sun-dried grapes and a long aging process. However, with the island’s wine industry already under strain, many winemakers are facing a difficult choice: continue producing Vinsanto, which is becoming increasingly expensive and labor-intensive, or focus on Assyrtiko, which is the island’s flagship wine and more commercially viable. As a result, production of Vinsanto has declined sharply in recent years, and its future is uncertain.

In response to these challenges, winemakers on the island are experimenting with new techniques and strategies. Some vineyards have begun using organic mulching to retain soil moisture, and many are replanting with cuttings from the healthiest old vines in an effort to preserve the genetic integrity of Santorini’s heritage varieties. Irrigation trials are also underway, though irrigation remains a contentious issue in a region that has long relied on dry-farming methods. The Santorini Winemakers Association is working with local universities and water companies to explore the possibility of using treated wastewater for irrigation to offset the loss of rainfall. However, much of this work is being driven by the producers themselves, and many feel that government intervention has been slow to materialize.

The economic pressure of the shrinking wine industry is already visible in the market. As yields fall and vineyards are sold off for development, grape prices have soared. Many growers are exiting the industry entirely, unable to cope with the rising costs and decreasing profits. This has led to a further concentration of land in the hands of a few producers, making it more difficult for smaller, family-run operations to survive.

Santorini’s vineyards are facing an extinction threat as climate change worsens and tourism continues to grow. Rising temperatures and over-tourism are stressing the island’s agricultural practices, putting its unique wine heritage at risk.

For wine lovers, this moment presents a rare opportunity to invest in Santorini’s wines. With production declining and prices rising, now may be the time to consider buying Assyrtiko to cellar. As the island’s vineyards face increasing pressures from both environmental and economic forces, the availability of premium Assyrtiko will continue to decrease, and prices are likely to keep climbing. For those who appreciate the unique character of Santorini’s wines, this is a time to act before the island’s winemaking heritage changes forever.