Tbilisi in September
In September, Tbilisi averages 26°C (79°F) during the day and 15°C (59°F) at night, with around 7 days of rain (40 mm total).
High seasonConditions are warm and beach-friendly. Occasional showers are likely but won't dominate.
September is a great month to visit Tbilisi: pleasant temperatures and relatively few wet days.
How September compares to the rest of the year in Tbilisi
September is in the middle of the year for warmth in Tbilisi (4th of 12) and one of the driest months (10th of 12). Daytime temperature runs 7°C above the annual average (19°C). September runs 5°C cooler than August (31°C) and cools 7°C in October (19°C).
September sunrise & sunset in Tbilisi
Times shown for Tbilisi local time (Asia/Tbilisi), calculated for the 15th of September. They shift by a few minutes day to day across the month.
Photography light in Tbilisi — September
Golden-hour and blue-hour windows for the 15th of September, in Tbilisi's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Tbilisi in September
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on September's tier (High season) and Tbilisi's popularity.
Crowds & pricing — September in Tbilisi
This is a busy month in Tbilisi — not the absolute peak, but tourist numbers are clearly elevated. You'll feel it at headline attractions on weekends and in the historic centre, though side streets and lesser-known sights stay manageable. Prices are above off-season but not at their summit. A good week for first-time visitors who want everything open without the worst of the crush.
Why this tier: excellent tourism weather
Sun & mosquito risk — September in Tbilisi
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
Tbilisi in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 7°C / 45°F | -1°C / 30°F | 20 mm | 7 | 3 |
| February | 9°C / 48°F | 1°C / 34°F | 30 mm | 7 | 2 |
| March | 13°C / 55°F | 4°C / 39°F | 40 mm | 9 | 1 |
| April | 19°C / 66°F | 9°C / 48°F | 55 mm | 10 | 0 |
| May | 24°C / 75°F | 13°C / 55°F | 80 mm | 12 | 0 |
| June | 28°C / 82°F | 17°C / 63°F | 75 mm | 11 | 0 |
| July | 31°C / 88°F | 20°C / 68°F | 55 mm | 9 | 0 |
| August | 31°C / 88°F | 20°C / 68°F | 40 mm | 7 | 0 |
| September | 26°C / 79°F | 15°C / 59°F | 40 mm | 7 | 0 |
| October | 19°C / 66°F | 10°C / 50°F | 40 mm | 8 | 0 |
| November | 12°C / 54°F | 4°C / 39°F | 30 mm | 7 | 1 |
| December | 8°C / 46°F | 1°C / 34°F | 25 mm | 7 | 2 |
Other cities with similar September weather
🌍 See the full ranked list of climate twins for Tbilisi in September →
Frequently asked questions
How hot is Tbilisi in September?
In September, Tbilisi averages a high of 26°C (79°F) and a low of 15°C (59°F) — generally warm.
Does it rain a lot in Tbilisi in September?
September sees occasional rain in Tbilisi, with about 7 rainy days on average.
Is September a good time to visit Tbilisi?
September is warm. It suits travelers who are comfortable with warm weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Tbilisi in September?
Pack light layers for warm days and cooler evenings. See the full September packing list for Tbilisi for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.