Click on a day for an hourly weather forecast
The temperatures in Tbilisi in September are usually low and can range between 11°C and 20°C.
You can expect about 3 to 8 days of rain in Tbilisi during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Tbilisi in September 2025.
If you’re planning to visit Tbilisi in the near future, we highly recommend that you review the 14 day weather forecast for Tbilisi before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 3° / -4° | 4 | 20 | 7 | 29 mm | Awful | Tbilisi in January |
| February | 5° / -3° | 4 | 17 | 7 | 33 mm | Awful | Tbilisi in February |
| March | 8° / 0° | 6 | 21 | 5 | 64 mm | Bad | Tbilisi in March |
| April | 13° / 4° | 6 | 23 | 1 | 79 mm | Ok | Tbilisi in April |
| May | 18° / 7° | 12 | 19 | 0 | 134 mm | Ok | Tbilisi in May |
| June | 23° / 11° | 7 | 23 | 0 | 87 mm | Good | Tbilisi in June |
| July | 26° / 14° | 3 | 28 | 0 | 74 mm | Perfect | Tbilisi in July |
| August | 25° / 14° | 2 | 29 | 0 | 45 mm | Perfect | Tbilisi in August |
| September | 20° / 11° | 4 | 26 | 0 | 56 mm | Good | Tbilisi in September |
| October | 15° / 7° | 4 | 27 | 0 | 55 mm | Good | Tbilisi in October |
| November | 9° / 2° | 3 | 24 | 2 | 32 mm | Bad | Tbilisi in November |
| December | 5° / -2° | 3 | 25 | 3 | 20 mm | Awful | Tbilisi in December |