Tbilisi weather in September
September is one of the best months to visit Tbilisi: highs of 27°C (80°F) and about 25 mm (1.0 in) of rain on average. Nights average 14°C (57°F) and cloud cover 60% (NASA POWER, 2001–2025 averages). It is the 5th driest month of the year and the 4th warmest. Compared with August, it is cooler and about as wet; October brings highs of 20°C (67°F) and 38 mm (1.5 in) of rain.
Figures are long-term averages for Tbilisi, the largest city in Tbilisi. See below for other places.
Is September a good time to visit Tbilisi?
best month Weather score 84/100.
Yes. September is one of the best months for weather in Tbilisi.
Does it rain a lot in Tbilisi in September?
No, it is usually dry: about 25 mm (1.0 in) falls in an average September. It is the 5th driest month of the year.
How warm is Tbilisi in September?
Days average 27°C (80°F) and nights 14°C (57°F).
Tbilisi weather by month
| Month | High | Low | Rain | Cloud | Weather |
|---|---|---|---|---|---|
| January | 6°C (42°F) | -4°C (25°F) | 18 mm | 67% | least pleasant |
| February | 8°C (47°F) | -3°C (27°F) | 17 mm | 69% | least pleasant |
| March | 14°C (56°F) | 1°C (33°F) | 28 mm | 72% | fair |
| April | 18°C (65°F) | 5°C (41°F) | 49 mm | 72% | best |
| May | 24°C (76°F) | 11°C (52°F) | 58 mm | 70% | best |
| June | 30°C (85°F) | 16°C (61°F) | 49 mm | 65% | best |
| July | 33°C (91°F) | 19°C (66°F) | 27 mm | 63% | best |
| August | 32°C (90°F) | 19°C (66°F) | 27 mm | 59% | best |
| September | 27°C (80°F) | 14°C (57°F) | 25 mm | 60% | best |
| October | 20°C (67°F) | 8°C (47°F) | 38 mm | 63% | best |
| November | 12°C (54°F) | 2°C (36°F) | 25 mm | 62% | fair |
| December | 7°C (44°F) | -2°C (28°F) | 17 mm | 64% | least pleasant |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis). Page updated . How we rate months