Tbilisi · Month comparison

May vs September

September ranks #1 overall vs May at #4. The grape harvest arrives — Rtveli season makes September the most culturally charged month in the Georgian year.

Tbilisi May — aerial view of the city with the Mtkvari River, Sameba Cathedral, and the Caucasus foothills in spring

May

#4 of 12 months

Best match

The sweet spot — warm, clear, vibrant, and still more affordable than equivalent European cities.

  • ↑Possibly Tbilisi's finest month: 23°C, 7.4 sunshine hours, and the city fully operational after winter; the rooftop bars, terrace restaurants, and café culture all make sense in May
  • ↑The Sololaki and Vera neighbourhoods are at their most attractive in spring — flowering trees against crumbling balconied facades is the quintessential Tbilisi aesthetic, fully realised in May
Tbilisi September — panoramic view of the city from the hills as autumn begins and the grape harvest season opens

September

#1 of 12 months

Best match

The grape harvest arrives — Rtveli season makes September the most culturally charged month in the Georgian year.

  • ↑Rtveli (grape harvest) begins in Kakheti from mid-September; vineyard visits and harvest participation are available throughout the month — this is the most important event in Georgian agricultural and cultural life, 8,000 years in practice
  • ↑Weather perfects itself: 26°C with 7.6 sunshine hours and minimal rainfall; everything the city offers is available without the July and August heat making outdoor activity uncomfortable
FactorMaySeptember
Weather score
9
10
Value score
6
6
Crowd score
7
6
Events score
6
9
Atmosphere
9
10
Avg high temp23°C26°C
Monthly rain77mm42mm
Daily sunshine7.4hrs7.6hrs

May trade-offs

  • ↓May can bring heavy spring rainfall; 77mm means rainy days are possible and outdoor plans need contingencies
  • ↓International visitor numbers start climbing in May; the most popular sites — Narikala, Abanotubani, Rustaveli Avenue — are noticeably busier than in winter
  • ↓Prices have moved up from their winter low; May is affordable by European standards but not at the rock-bottom level of January and February

September trade-offs

  • ↓Kakheti gets crowded during Rtveli and accommodation in the wine region must be booked well ahead for harvest weekends — day-tripping from Tbilisi is the pragmatic approach
  • ↓September remains a popular travel month; visitor numbers are still moderately high, particularly around the harvest festival weekends
  • ↓Nights become noticeably cooler from mid-September, requiring a layer for evening terrace dining
See all 12 months for Tbilisi →May in detail →September in detail →
Scores compare months within Tbilisi. Climate data: Open Meteo ERA5 30-year normals (1991–2020). Methodology →