Solano County Green Valley AVA

Solano County Green Valley AVA

38° 15' N


122° 9' W




about this subregion

The Solano County Green Valley American Viticultural Area (AVA), nestled in the heart of California's wine country, is a hidden gem known for its unique environmental characteristics and exceptional grape varieties. Established in 1982, this AVA boasts a distinctive climate and geography that sets it apart in the world of wine.

Situated at approximately 38° 15' North latitude and 122° 9' West longitude, the Green Valley AVA benefits from the cooling influence of the nearby San Pablo Bay. This maritime climate, coupled with the region's rolling hills and elevations ranging from 800 to 1,200 feet (240 to 365 meters), creates an ideal environment for grape cultivation.

Notably, the Green Valley AVA is renowned for producing premium Pinot Noir, Syrah, Chardonnay, and Pinot Gris grapes. The temperate climate, with a balance of warm days and cool nights, allows these grape varieties to thrive, resulting in wines with exquisite flavors and a unique expression of the terroir.

With an average annual rainfall of 30 to 35 inches (760 to 890 millimeters), this AVA benefits from just the right amount of moisture to sustain vineyards. As a result, it has become a destination for wine enthusiasts seeking exceptional, cool-climate wines in an enchanting natural setting. The Solano County Green Valley AVA stands as a testament to the artistry of winemaking and the harmony between nature and the vine.


vinerra illustration

Vineyard Hectares



2500 - 2800


Discover Terroir

The Solano County Green Valley American Viticultural Area (AVA) is located within Solano County in the state of California, United States. It is situated to the west of the larger Suisun Valley AVA and is partially enveloped by the North Coast AVA.

The landscape of Solano County Green Valley AVA is picturesque and marked by its unique microclimate and topography. The area is characterized by its rolling hills and valleys that create an ideal environment for vineyards, with many vineyards situated along the slopes of these elevations. The region is known for its moderately cool climate, influenced by the proximity of the Pacific Ocean and San Pablo Bay. This coastal influence brings in cool and foggy conditions, especially in the evenings and early mornings, which is beneficial for the slow and steady ripening of grapes.

The soil composition in Green Valley is diverse but is predominantly composed of loamy and sandy soils, with excellent drainage properties making it suitable for viticulture. The soil, combined with the climate, contributes to the production of high-quality grapes used for crafting exquisite wines, with the region particularly known for its exceptional Chardonnay and Pinot Noir wines.

This AVA is enveloped by natural beauty, with a landscape dotted with oak trees, grasslands, and an array of native plants and wildlife. The vineyards themselves often appear as patches of vibrant green against the golden hills, especially during the summer and autumn months, providing breathtaking vistas that are not only a feast for the eyes but also indicative of the thriving wine culture in the region.

Furthermore, the region is interspersed with small creeks and bodies of water, which not only contribute to the area's biodiversity but also add to the visual appeal of the landscape. The combination of rolling hills, verdant vineyards, and meandering water bodies under the vast Californian sky makes the Solano County Green Valley AVA a captivating and enchanting wine-growing region.

The climate of the Solano County Green Valley AVA is an intricate tapestry woven from the cool maritime influence and the warm inland valleys of California, crafting an ideal microclimate for viticulture.

Nestled amidst this symphony of temperatures, the AVA experiences a moderate climate characterized by a distinctive diurnal temperature variation. Days within this serene valley are typically warm and inviting, gently cradling the vineyards with an abundance of sunlight essential for photosynthesis and grape maturation. As daylight recedes, giving way to the soothing embrace of night, temperatures within the valley drop significantly. This nightly reprieve allows the grapes to preserve their acidity, developing a balance that is crucial for the creation of finely textured and robust wines.

The cool, whispering breezes drifting from the nearby Pacific Ocean and the San Pablo Bay play pivotal roles in sculpting the climatic personality of the Green Valley AVA. These winds traverse the landscape, bringing with them a misty and enchanting fog that swathes the vineyards in the early morning and late evening. The fog acts like a delicate veil, moderating temperatures and shielding the precious grapes from the potentially harsh sunlight, thereby prolonging the ripening process and allowing the fruit to develop depth and complexity in flavor profiles.

In this dance between sun and fog, moisture is meticulously regulated. While the sun ensures that the soil remains warm and dry, the fog contributes a subtle dampness to the air. This dynamic equilibrium prevents both excessive dryness and humidity, creating an environment where grapevines can flourish without the undue stress of climatic extremes.

Rainfall in the Solano County Green Valley AVA is primarily concentrated in the winter months. The precipitation nurtures the soil, replenishing it with vital minerals and moisture that sustain the vineyards through the drier, sun-drenched summer. The winter rains prepare the vineyards for the growing season, allowing them to erupt into a burst of verdant vitality as temperatures rise.

Overall, the climate within the Solano County Green Valley AVA is a harmonious blend of warmth and coolness, moisture and dryness—a nuanced and dynamic canvas that crafts an environment conducive to the growth of premium grape varieties, ultimately giving life to wines that are a testament to the rich and vibrant climatic tapestry of this distinguished viticultural region.

The soils in the Solano County Green Valley AVA play a crucial role in viticulture, imparting distinct characteristics to the wines produced in the region. Below are the different types of soils found in the area:

  1. Clay Loam Soils: Clay loam soils are prevalent in the region and are known for their optimal balance of different soil particles. These soils exhibit a good structure that allows for efficient water retention while providing sufficient drainage. The water-holding capacity of clay loam is particularly beneficial during dry seasons, as it supplies vine roots with the necessary moisture, thus supporting consistent vine growth.
  2. Sandy Loam Soils: Sandy loam soils occupy significant portions of the AVA. This type of soil is characterized by a high sand content, making it well-draining and aerated. The loose texture of sandy loam is advantageous for vine root development, as it offers minimal resistance, allowing roots to penetrate deeply. Moreover, its excellent drainage properties reduce the risk of root diseases, creating a healthy environment for the vines.
  3. Silt Loam Soils: Silt loam soils, with their fine particles, present a smooth and silky texture. These soils have a remarkable ability to retain moisture while also providing good drainage. Silt loam is fertile, supporting the nutrient uptake of the vines, which contributes to the development of grapes with rich and concentrated flavors.
  4. Volcanic Soils: Pockets of volcanic soils are scattered throughout the AVA. These soils originate from ancient volcanic activity and are typically well-drained and fertile. Volcanic soils are known for imparting a unique mineral characteristic to wines, often contributing to the complexity and depth of the final product.
  5. Gravelly Soils: Gravelly soils in the Solano County Green Valley AVA offer exceptional drainage, making them ideal for viticulture. The presence of gravel helps prevent waterlogging, providing vines with an environment where the moisture level is controlled. These soils are also beneficial in encouraging vines to develop deep root systems, which is crucial for accessing groundwater during dry periods.


Nestled within the picturesque landscapes of Solano County Green Valley AVA, these renowned grape varieties, Pinot Noir, Syrah, Chardonnay, and Pinot Gris, flourish under the region's unique climatic and geographical conditions. Located at a latitude of approximately 38° 15' North and a longitude of 122° 9' West, the AVA benefits from its proximity to the San Pablo Bay, which imparts a maritime influence and contributes to its distinct terroir. The elevations here range from 800 to 1,200 feet (240 to 365 meters) above sea level, adding an extra dimension to the grapes' cultivation.

  1. Pinot Noir: Pinot Noir grapes thrive in the Green Valley AVA's moderately warm days and cool nights. The region's climate allows for a longer growing season, with an average GDD of 2,500 to 2,800, enabling these grapes to ripen gradually and develop complexity. Well-drained soils and careful vineyard management are crucial for the cultivation of this sensitive grape variety.
  2. Syrah: Syrah grapes revel in the AVA's higher elevations, where they receive ample sunlight during the day while enjoying cool nighttime temperatures. These conditions are conducive to preserving the acidity and fostering the development of intense flavors. The grape's sturdy vines and resilient nature make it well-suited to the region's climate and well-drained soils.
  3. Chardonnay: Chardonnay grapes in Green Valley AVA benefit from a moderate climate and diurnal temperature variation, which allows them to retain natural acidity while reaching optimal ripeness. The AVA's diverse soils, including loam and clay, contribute to the complexity of Chardonnay wines. Vineyard management practices focus on maintaining the delicate balance required for this grape variety.
  4. Pinot Gris: Pinot Gris vines flourish in the region's temperate climate. Well-drained soils and a balanced environment are essential for their cultivation. The grapes benefit from the AVA's moderate rainfall and abundant sunshine, allowing for gradual ripening and the development of vibrant flavors.

The wines originating from Solano County Green Valley AVA are a true reflection of the region's distinctive terroir and climatic conditions. These wines are celebrated for their elegance, balanced body, and captivating visual appeal. As you embark on a journey through this exceptional winegrowing region, you'll discover a range of wines, each with its own aromatic and flavor profile that showcases the unique characteristics of the grapes grown here.

  1. Pinot Noir: In the glass, Green Valley AVA Pinot Noir wines display a mesmerizing ruby hue. Aromas of red berries, cherries, and violets grace the nose, intertwined with subtle earthy undertones. On the palate, these wines are marked by bright acidity and silky tannins, offering flavors of strawberries, raspberries, and hints of forest floor. The finish is long and graceful, leaving a lingering impression of delicate spices and a velvety texture.
  2. Syrah: Solano County Green Valley AVA Syrah wines showcase a deep garnet color, enticing the senses with a bouquet of blackberries, plums, and a touch of black pepper. The palate experience is rich and full-bodied, with flavors of dark fruits, smoked meat, and black olives. Firm tannins and a well-defined structure provide a satisfying and lingering finish, making these wines ideal for those who appreciate bold and complex reds.
  3. Chardonnay: Green Valley AVA Chardonnay wines exhibit a pale golden hue, inviting with aromas of green apples, citrus blossoms, and a hint of vanilla. On the palate, they strike a harmonious balance between crisp acidity and creamy textures, delivering flavors of pear, lemon curd, and toasted oak. The finish is refreshing and enduring, making these Chardonnays a delightful choice for those who savor refined white wines.
  4. Pinot Gris: The Pinot Gris wines from this AVA greet the eye with a pale straw color and enthrall the senses with a fragrance of ripe pears, white peaches, and a touch of floral notes. These wines offer a lively and vibrant palate experience, featuring flavors of green apple, honeysuckle, and a subtle mineral undertone. With their zesty acidity and a clean, crisp finish, Pinot Gris wines from Solano County Green Valley are perfect for leisurely sipping.