Monthly climate guide
Tbilisi weather in September
Expect hot weather in Tbilisi in September: afternoons reach about 28°C (82°F), while nights drop to around 15°C (59°F). Around 24 mm of rain falls over the month (fairly dry), and skies are often cloudy. Daytime highs are 5°C cooler than August and 7°C warmer than October.
What stands out in September
- It cools down fast from here: October is about 7°C cooler.
- Skies are at their clearest this time of year.
- Just 190 km apart, but Tbilisi runs about 2°C warmer than Kutaisi this month.
- Evenings cool off sharply: the daily range is around 13°C, so pack a layer.
Avg high
28°C
82°F
Avg low
15°C
59°F
Rainfall
24 mm
fairly dry
Humidity
56%
relative
Sky
59%
cloud · often cloudy
Tbilisi weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 7°C / 45°F | -2°C / 28°F | 15 mm | 68% | 69% |
| February | 9°C / 48°F | -2°C / 29°F | 15 mm | 67% | 70% |
| March | 14°C / 58°F | 2°C / 35°F | 24 mm | 61% | 73% |
| April | 20°C / 67°F | 6°C / 42°F | 38 mm | 59% | 71% |
| May | 25°C / 77°F | 12°C / 53°F | 61 mm | 59% | 72% |
| June | 30°C / 87°F | 17°C / 62°F | 48 mm | 51% | 64% |
| July | 34°C / 92°F | 19°C / 67°F | 25 mm | 46% | 62% |
| August | 33°C / 91°F | 19°C / 66°F | 21 mm | 45% | 59% |
| September | 28°C / 82°F | 15°C / 59°F | 24 mm | 56% | 59% |
| October | 20°C / 69°F | 9°C / 48°F | 33 mm | 67% | 62% |
| November | 13°C / 55°F | 3°C / 37°F | 27 mm | 72% | 66% |
| December | 8°C / 47°F | -1°C / 30°F | 15 mm | 72% | 65% |
What to pack for September
- Light, breathable clothing (cotton or linen)
- A sun hat and high-SPF sunscreen
- A refillable water bottle
- An extra layer — evenings are noticeably cooler than afternoons
Is September a good time to visit Tbilisi?
Compare the months in the chart above to find your ideal window.
Best time to visit Tbilisi →Other Georgia cities in September
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Tbilisi weather in September. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/georgia/tbilisi/september
<a href="https://weathercompare.eu/weather/georgia/tbilisi/september">Tbilisi weather in September</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/georgia/tbilisi" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Tbilisi weather in September"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/georgia/tbilisi/september">Tbilisi weather in September</a> – WeatherCompare</p>
Tbilisi in September: quick answers
Is September a good time to visit Tbilisi?
Yes. September is one of the best months for Tbilisi, with highs around 28°C and about 24 mm of rain.
How warm is Tbilisi in September?
Average highs are about 28°C (82°F) and average lows about 15°C (59°F), based on 10 years of daily data.
Does it rain a lot in Tbilisi in September?
Tbilisi typically gets around 24 mm of rain in September — fairly dry.
Figures are long-term averages for the area around Tbilisi (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.