Georgia occupies 69,700 square kilometers in the South Caucasus region where Europe meets Asia. The country shares borders with Russia to the north and northeast (894 kilometers), Turkey to the southwest (252 kilometers), Armenia to the south (219 kilometers), and Azerbaijan to the southeast (428 kilometers). The Black Sea forms Georgia's western boundary along a coastline stretching 310 kilometers from the Psou River near Abkhazia south to the Turkish border beyond Batumi. This position between the Caucasus Mountains and the Black Sea creates Georgia's fundamental geographic identity—a small nation holding extreme topographic variation within compact borders.
The Greater Caucasus range defines Georgia's northern frontier. This mountain chain runs roughly east-west across the country's entire northern edge, forming a natural barrier between Georgia and Russia. Mount Shkhara stands at 5,193 meters as Georgia's highest point, located in the Svaneti region near the Russian border. Mount Kazbek reaches 5,047 meters further east in the Khevi region, visible from the Georgian Military Highway. The Greater Caucasus includes multiple peaks exceeding 4,000 meters, with permanent snowfields and glaciers covering high elevations. The Enguri River originates in these mountains, cutting deep gorges as it flows toward the Black Sea. The range creates a precipitation barrier, forcing moisture-laden air from the Black Sea to release rain and snow on southern slopes while leaving areas north of the crest significantly drier.
The Lesser Caucasus occupies southern Georgia, running parallel to the Greater Caucasus but at lower elevations. This range forms natural boundaries with Armenia and Turkey, with peaks generally between 2,000 and 3,500 meters. The volcanic Samtskhe-Javakheti region sits within the Lesser Caucasus, characterized by plateaus, crater lakes, and geological features distinct from the granite peaks of the Greater Caucasus. Between these two mountain systems lies the central depression, a corridor connecting eastern and western Georgia. The Likhi Range and Suram Range subdivide this corridor, creating what Georgians historically recognized as a boundary between eastern and western cultural zones.
The Kolkheti Lowland occupies Georgia's western coastal region between the Black Sea and the foothills of the Lesser Caucasus. This flat terrain includes wetlands, rivers, and former seabed that emerged through geological processes over millennia. The Rioni River drains this lowland, flowing 327 kilometers from the Caucasus to the Black Sea near Poti. Ancient Greeks called this region Colchis and associated it with the mythological Golden Fleece, though archaeological evidence confirms actual human settlement dating to the Bronze Age. The lowland's ecology includes rare wetland forests protected in Kolkheti National Park, established in 1998 and expanded to 28,940 hectares in 1999.
Eastern Georgia centers on the Alazani Valley, a broad plain between the Greater Caucasus and the Gombori Range. This valley runs approximately 160 kilometers from northwest to southeast through the Kakheti region, forming Georgia's primary wine-producing zone. The Alazani River flows the valley's length before joining the Iori River and eventually draining into Azerbaijan's Mingachevir Reservoir. Elevations in the valley floor range from 200 to 500 meters above sea level. The Mtkvari River, known internationally as the Kura, enters Georgia from Turkey, flows southeast through Tbilisi, and continues into Azerbaijan before emptying into the Caspian Sea. This river drains approximately 188,000 square kilometers total across three countries, with 35,000 square kilometers of its watershed lying within Georgia.
Georgia's climate varies dramatically across short distances due to topographic complexity. The Black Sea coast experiences subtropical conditions with Batumi receiving approximately 2,500 millimeters of annual precipitation, making it one of the wettest cities in Europe. This coastal zone maintains mild winters—January average temperatures in Batumi around 7°C—and warm, humid summers with July averages near 23°C. Kolkheti lowlands see similar conditions extending 30 to 50 kilometers inland before rising terrain moderates temperatures and precipitation patterns. The Adjara region's mountains immediately behind Batumi capture moisture, creating microhabitats with annual rainfall exceeding 4,000 millimeters at some elevations.
Eastern Georgia exhibits continental climate characteristics with greater temperature extremes and less precipitation. Tbilisi sits at 400 to 770 meters elevation in the Mtkvari River valley, experiencing January average temperatures around 2°C and July averages near 25°C. Annual precipitation in Tbilisi measures approximately 500 millimeters, concentrated in spring and early summer. The Alazani Valley receives 400 to 800 millimeters annually depending on specific location and elevation. Temperature inversions occur frequently in eastern Georgia's river valleys during winter, trapping cold air and creating fog. The Gombori Range separating the Alazani Valley from the Iori Valley produces rain shadow effects, with precipitation declining eastward toward the Azerbaijan border.
Mountain climates dominate approximately 54 percent of Georgia's territory. The Greater Caucasus creates distinct vertical climate zones. Alpine meadows exist between approximately 1,800 and 3,000 meters, used for summer livestock grazing in regions like Tusheti, Pshavi, and Khevi. Above 3,000 meters, permanent snow and ice predominate. Winter snowfall at high elevations can exceed 5 meters in accumulation, while summer temperatures rarely exceed 15°C even at lower alpine elevations. The Svaneti region experiences heavy winter snow that historically isolated communities for months, though modern road clearing has reduced this isolation. Mestia, Svaneti's main town at 1,500 meters, receives approximately 1,000 millimeters of annual precipitation with snow covering the ground from November through March.
The Likhi Range creates a pronounced climate divide between western and eastern Georgia despite its modest height—peaks around 1,000 to 1,500 meters. Air masses from the Black Sea drop moisture on western slopes, leaving the eastern side significantly drier. The city of Kutaisi, just west of this range at 125 meters elevation, receives approximately 1,500 millimeters of precipitation annually. Gori, 120 kilometers east at 588 meters elevation, receives only 600 millimeters. This transition occurs within a horizontal distance of roughly 100 kilometers, demonstrating the range's effectiveness as a climate barrier. Surami Pass at 949 meters historically marked a transition point on the ancient trade route connecting the Black Sea with the Caspian region.
Regional climate variations create distinct growing conditions across Georgia. Western regions support crops requiring high moisture and moderate temperatures: tea plantations in Guria and Adjara, citrus groves near the coast, and hazelnuts throughout the lowlands. Tea cultivation began in Georgia in the 1890s under Russian imperial administration, with production expanding significantly during the Soviet period when Georgia supplied most tea consumed across the USSR. Eastern Georgia's continental climate suits viticulture, with hot summers and cold winters matching grape varieties cultivated there for millennia. The Kakheti region produces approximately 70 percent of Georgia's wine grapes, benefiting from 280 to 300 days of annual sunshine.
South-central Georgia's climate reflects Lesser Caucasus geography. The Borjomi Gorge creates a microclimate where the Mtkvari River cuts through mountains, producing moderate temperatures and consistent precipitation year-round. Borjomi at 800 meters elevation receives approximately 800 millimeters of annual precipitation distributed relatively evenly across months. This consistency supports the coniferous forests of Borjomi-Kharagauli National Park, established in 1995 and covering 76,700 hectares. The Samtskhe-Javakheti plateau at 1,500 to 2,000 meters experiences continental conditions more severe than lower-elevation eastern Georgia, with winter temperatures regularly below -20°C and a growing season limited to approximately 120 days.
Microclimates occur throughout Georgia due to topographic variation. The Truso Valley in Khevi, at approximately 2,000 meters elevation, maintains relatively dry conditions despite proximity to high peaks, receiving roughly 600 millimeters of annual precipitation. The Pankisi Gorge in the Kakheti region experiences a microclimate warmer than surrounding areas due to its orientation and protection from winds, supporting fruit cultivation at elevations where such crops typically fail. The Racha region in northwestern Georgia produces microclimates varying dramatically between river valleys at 400 meters and adjacent ridges at 2,000 meters within distances of 5 to 10 kilometers.