Georgia Tbilisi Weather in September (harvest month · best month) — Climate Guide
September (harvest month · best month) in Tbilisi is Perfect
Tbilisi Weather in September (harvest month · best month) — Quick Answer
As of 2026- Avg temp
- 26° / 16°
- Rainfall
- 30mm · 6 days
- Crowds
- Busy
As of 2026, Tbilisi in September (harvest month · best month) averages a high of 26°C and low of 16°C with 30mm of rain over about 6 days. T-shirts + light jacket for evenings. Comfortable walking clothes. Late month brings cooler mornings.
September (harvest month · best month) is Perfect for Tbilisi.
The other best month — 16/26°C, Kakheti grape harvest (rtveli) in full swing, low rainfall, comfortable temperatures everywhere. Hotels remain at high-season rates but the weather + the rtveli wine festival make this the canonical wine-country month.
Travel score
Tbilisi September (harvest month · best month) Weather Stats
Avg High
26°C
Avg Low
16°C
Rainy Days
6
30mm total
Sunshine
8h
Daily avg
Humidity
60%
Pleasant + dry
UV Index
7
High
Wind
5 km/h
Gusts 11
Sea Temp
0°C
N/A
Crowds
Busy
At attractions
September (harvest month · best month) Sunrise & Sunset
Air Quality
PM2.5
16 μg/m³
PM10
34 μg/m³
Status
Good
Feels-Like Temperature & Wind
Feels like
Daytime
25°C
Nighttime
15°C
Humidity and wind affect how the actual temperature feels.
Wind
5 km/h
Max gust 11 km/h
Activities Recommended for September (harvest month · best month)
September (harvest month · best month) Travel Pros & Cons
Pros
- Ideal 16/26°C
- Kakheti rtveli harvest
- Lowest summer rainfall (30mm)
- Tbilisoba festival
Cons
- Hotels still at peak rates
- Kakheti tours book up for harvest
- Last warm month
September (harvest month · best month) Events & Festivals
- Rtveli (Kakheti grape harvest, mid-September)
- Tbilisoba (Old Town festival, late September)
Tbilisi in September (harvest month · best month) — Full Picture
The other best month — 16/26°C, Kakheti grape harvest (rtveli) in full swing, low rainfall, comfortable temperatures everywhere. Hotels remain at high-season rates but the weather + the rtveli wine festival make this the canonical wine-country month.
What to Wear & What to Pack
T-shirts + light jacket for evenings. Comfortable walking clothes. Late month brings cooler mornings.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
18°C
8.3°C
9/mo
Summer (Jun·Jul·Aug)
29.7°C
19°C
7.7/mo
Autumn (Sep·Oct·Nov)
Current19°C
10.7°C
7/mo
Winter (Dec·Jan·Feb)
7°C
0°C
6/mo
Tbilisi Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| 6° | -1° | 6d·32mm | 3h | 75% | 2 | Quiet | Low season | |
| 8° | 0° | 5d·28mm | 4h | 73% | 3 | Quiet | Low season | |
| 13° | 4° | 7d·30mm | 5h | 70% | 4 | Quiet | Low season | |
| 18° | 8° | 9d·50mm | 6h | 67% | 5 | Moderate | Shoulder | |
| 23° | 13° | 11d·80mm | 7h | 65% | 6 | Busy | Peak | |
| 27° | 17° | 10d·76mm | 8h | 60% | 7 | Busy | Peak | |
| 31° | 20° | 7d·50mm | 10h | 55% | 9 | Very busy | Peak | |
| 31° | 20° | 6d·48mm | 10h | 55% | 9 | Very busy | Peak | |
| 26° | 16° | 6d·30mm | 8h | 60% | 7 | Busy | Peak | |
| 19° | 11° | 7d·40mm | 6h | 65% | 5 | Moderate | Shoulder | |
| 12° | 5° | 8d·35mm | 4h | 73% | 3 | Quiet | Low season | |
| 7° | 1° | 7d·30mm | 3h | 76% | 2 | Quiet | Low season |
View Other Months
Tbilisi September (harvest month · best month) Hotel Picks
Frequently Asked Questions
Is September (harvest month · best month) a good time to visit Tbilisi?
Tbilisi in September (harvest month · best month) is Perfect. Tourist crowds are busy and flight/hotel prices are peak.
What's the average temperature in Tbilisi in September (harvest month · best month)?
Tbilisi September (harvest month · best month) averages a high of 26°C and a low of 16°C.
Does it rain much in Tbilisi in September (harvest month · best month)?
Tbilisi September (harvest month · best month) averages 30mm of rainfall over about 6 rainy days.
What should I wear in Tbilisi in September (harvest month · best month)?
T-shirts + light jacket for evenings. Comfortable walking clothes. Late month brings cooler mornings.
What time are sunrise and sunset in Tbilisi in September (harvest month · best month)?
Tbilisi September (harvest month · best month) sunrise is 06:30 and sunset is 19:25, with 12h 55min of daylight.
What's the air quality like in Tbilisi in September (harvest month · best month)?
Tbilisi September (harvest month · best month) air quality (AQI) averages 42, rated Good. PM2.5 averages 16μg/m³.
What activities are recommended in Tbilisi in September (harvest month · best month)?
In September (harvest month · best month), Tbilisi is great for Kakheti rtveli harvest tours, Cafe Littera garden, Stepantsminda peak.
Is September (harvest month · best month) peak season in Tbilisi?
Tbilisi September (harvest month · best month) crowds are busy and prices are peak. Advance reservations are strongly recommended.
Best Months to Visit Tbilisi
View Other Months
Planning a September (harvest month · best month) trip to Tbilisi?
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Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.