Georgia Tbilisi Weather in September (harvest month · best month) — Climate Guide
September (harvest month · best month) in Tbilisi is Perfect
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
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.