Vintners Race Against Time: Wrapping Up North Coast Wine Grape Harvest Before Rain Hits

The 2025 North Coast wine grape harvest is nearing its conclusion amid challenging conditions characterized by late-season rains and cool weather. Growers across Napa, Sonoma, Mendocino, and Lake counties report mixed results, with some vineyards yielding strong fruit quality, while others face widespread disease pressure and an uncertain market as they approach the end of harvest.

Christian Klier from Turrentine Brokerage noted that most white varietals have already been harvested, leaving little hope for any remaining white grapes to find a market. Meanwhile, the late ripening red grapes like Cabernet Sauvignon and Malbec are still being picked, although many vintners expect to wrap up by the end of the month.

Weather disruptions have complicated the harvest, beginning with a mild spring followed by a series of rains as picking began. These conditions have prompted increased instances of botrytis and other forms of mold growth on the fruit. Klier expressed frustration over lower Brix levels, which measure grape sugar content; many vineyards are stuck at 22 to 23 Brix instead of the desired range of 24 to 26.

As of mid-October, harvest activities shifted into “triage mode” for many wineries, requiring quick decisions regarding fruit quality. Some growers accelerated their schedules dramatically in an effort to harvest as much fruit as possible before the approaching storms. Total yields are expected to be average to slightly above average, projected at under 2.5 million tons statewide compared to just under 2.88 million tons the previous year.

The existing market turmoil has been building over several years, particularly impacting white varietals amid decreasing demand. Some vineyards have left crops unharvested due to market conditions, with Klier noting certain Sauvignon Blanc and Chardonnay grapes going entirely untouched. Growers have limited options, navigating price discounts and discussions related to switching grape contracts.

In terms of the overall wine market, Klier mentioned that the highest tiers are faring well, with luxury wines showing a notable appreciation while lower-end products struggle. The disparity in market performance has led to a potential shift: while some anticipate future shortages in grapes due to reduced harvesting, others are scaling back on vineyard maintenance.

The most pressing concerns remain around unexpected rain patterns that could threaten the remaining harvest. Sonoma County Winegrowers President Karissa Kruse observed that most of the county’s grapes were already harvested, but key varietals like Cabernet, Merlot, and Zinfandel are still on the vines, increasing the risk of disease from the rain.

Looking ahead, Kruse emphasized the need for supportive marketing strategies to aid wineries, while some producers contemplate making bulk wine in hopes of improved market conditions in the future. Meanwhile, there are encouraging signs of strong fruit quality amidst the challenges, with positive reports from various winemakers about flavor development and overall quality of the harvest.

The North Coast’s 2025 vintage is thus characterized by both optimism and caution as the industry faces the complexities introduced by the weather and market conditions. The uncertainty remains palpable as growers hope for favorable weather patterns to conclude the season successfully.

About the Author: Chris Lehoux

Meet Chris Lehoux, an experienced wine connoisseur and dedicated blogger with a deep passion for all things wine-related. With years of expertise in the industry, Chris shares insightful wine reviews, valuable wine tasting tips, expert pairing advice, and captivating tales of vineyard visits. Join Chris on a journey through the world of wine, where every sip is an adventure waiting to be savored!