Last updated: January 18, 2025
T'bilisi, Georgia, is characterized by a Cfa Köppen-Geiger climate classification, indicating a humid subtropical climate. Average temperatures hover around 11°C (52°F), with notable seasonal variations. The coldest month, February, can see temperatures dipping to -12°C (11°F), while the height of summer, particularly July, can experience sweltering highs of 36°C (97°F). This dynamic range highlights the diverse weather patterns influencing T'bilisi, contributing to its unique environmental and cultural landscape.
T'bilisi, Georgia exhibits distinct seasonal temperature patterns throughout the year. Winter months are characterized by cold temperatures, with January reaching a minimum of -8°C (17°F) and February dipping to -12°C (11°F), gradually warming slightly into early spring. As the seasons shift, March and April see a notable increase in temperatures, with averages rising from 5°C (40°F) to 10°C (50°F), and maximums peaking at 24°C (76°F). The arrival of summer in June brings warmth, with average temperatures climbing to 20°C (69°F) and reaching highs of 36°C (97°F) in both July and August. As autumn approaches, temperatures begin to cool again, with September still warm at 18°C (65°F) on average, but October and November signal a return to chillier weather, averaging between 5°C (42°F) and 12°C (53°F). The year concludes with December temperatures reflecting a near return to winter's cold, averaging 2°C (36°F) and a maximum of 14°C (57°F).
Tbilisi experiences significant temperature variations throughout the year, with a minimum of -12°C (11°F) in February and a maximum of 36°C (97°F) in July. This range showcases the city's diverse climate, making it an interesting destination for those who enjoy experiencing distinct seasonal changes. For more detailed monthly temperatures in Tbilisi, you can refer to the provided link: monthly temperatures in Tbilisi.
T'bilisi experiences a varied precipitation pattern throughout the year, with rainfall peaking during the late spring months. March marks a significant increase in rainfall, recording 75 mm (2.9 in) over approximately 15 days, while April escalates to 98 mm (3.8 in) across 14 days. This trend continues into May, where 116 mm (4.6 in) of rain is measured, emphasizing the transition into a wetter period that sets the stage for the summer months. Conversely, the summer months of June and July see a notable decrease in precipitation, with 47 mm (1.8 in) and 50 mm (2.0 in) respectively, reflecting drier conditions compared to the preceding months.
As autumn approaches, T'bilisi witnesses a resurgence in rainfall, particularly in October, which captures around 60 mm (2.4 in) across 7 days. The precipitation in November remains substantial at 52 mm (2.0 in), while December experiences a drop to 37 mm (1.4 in). In terms of overall rainy days, March stands out with the highest at 15 days, whereas the late summer and early autumn months demonstrate fewer rainy conditions, indicating a diverse and dynamic rainfall pattern that significantly influences T'bilisi's climate and vegetation throughout the year.
T'bilisi, Georgia, showcases a remarkable seasonal progression in sunshine duration, with a clear upward trajectory from winter to summer. January sees 207 hours of sunshine, gradually increasing to 261 hours in February. As spring unfolds, sunlight hours continue to rise, with March receiving 312 hours and April reaching 324 hours. The momentum builds further, and by May, the city basks in 381 hours of sunshine, heralding the arrival of summer when June records 401 hours. The peak of sunshine is witnessed in July, where T'bilisi enjoys a remarkable 412 hours, illuminating the city and its surroundings.
As the summer wanes, sunshine hours begin to decrease, though August remains substantial with 394 hours. The onset of autumn leads to diminishing sunlight, especially noticeable in September with 323 hours, followed by further declines in October (299 hours) and November (250 hours). The year concludes with December receiving 248 hours, emphasizing the shorter daylight period typical of winter months. This cyclical trend highlights T'bilisi's vibrant climate, where citizens can relish in abundant sunshine during the warmer months, while the shorter days of winter provide a contrasting but equally captivating seasonal experience.
The UV Index in T'bilisi, Georgia, demonstrates a pronounced seasonal variation, indicating the fluctuating intensity of solar radiation throughout the year. During the winter months, such as January and February, the UV Index remains at a moderate level of 3 and 4 respectively, allowing for safe outdoor activities with a burn time of 30 minutes. However, as spring transitions into summer, the index escalates significantly. In March, it reaches 7—classified as high—with a reduced burn time of just 25 minutes. By April, the UV Index spikes to 8 (very high) and remains elevated through May at an index of 10, necessitating more cautious exposure with a burn time reduced to 15 minutes.
The summer months unveil the peak UV Index, with June hitting an extreme level of 11, demanding stringent protective measures as the burn time plummets to merely 10 minutes. This high intensity persists into July at 10 and drops slightly to 9 in August, while September stabilizes at 8. As autumn approaches, UV levels begin a gentle decline, with October recording a high index of 6 before dropping to moderate levels (3) in November and a low level (2) in December. These insights highlight the importance of sun safety in T'bilisi, especially during the warmer months when UV radiation poses a greater risk.
UV Risk Categories
Daylight duration in T'bilisi, Georgia, exhibits a clear seasonal pattern that reflects the cyclical nature of the year. In the depths of winter, January and December provide only 9 hours of daylight, creating a shorter window for outdoor activities. February marks a gradual increase, offering 10 hours, followed by March, which gains an extra hour to reach 11 hours. The arrival of spring brings a more significant change, as daylight extends to 13 hours in April and 14 hours in May, setting the stage for longer, sunnier days.
As summer approaches, T'bilisi basks in the longest daylight of the year, with June boasting 15 hours—the peak duration. Although July still enjoys 14 hours, a gradual decrease begins in August with 13 hours. The transition into autumn sees daylight reduce further, with September at 12 hours and continuing to decline as the year progresses. By October, daylight returns to 11 hours, and the cycle completes with 9 hours of daylight resuming in November. This seasonal variation in daylight not only influences daily life in T'bilisi but also enhances the city's characteristic charm across its diverse seasons.
Tbilisi, Georgia experiences a diverse climate with cold winters and warm summers. January temperatures range from -8°C to 12°C, while July sees highs reaching up to 36°C. Precipitation is heaviest in spring, with May averaging 116 mm, and the city enjoys ample sunshine, particularly in summer, with July receiving about 412 hours of sunlight. Despite the variations, the climate remains mild overall, making it suitable for various outdoor activities year-round. For more details, visit Tbilisi climate.
In conclusion, T'bilisi, Georgia, presents a fascinating interplay of climatic factors that shape its weather patterns throughout the year. The city experiences a humid subtropical climate, characterized by distinct seasonal variations in temperature, precipitation, sunshine duration, UV Index, and daylight hours. From the cold, shorter days of winter to the long, sun-filled days of summer, T'bilisi offers a dynamic environment influenced by its geographical setting. As residents and visitors navigate the seasons, an understanding of these climatic trends fosters appreciation for the diverse experiences the city has to offer, encouraging both outdoor activities in the warmer months and cozy reflections during its cooler spells.