Tbilisi · Month comparison

June vs September

September ranks #1 overall vs June at #8. The grape harvest arrives — Rtveli season makes September the most culturally charged month in the Georgian year.

Tbilisi June — cobbled street in the old city with the characteristic wooden-balconied architecture in summer light

June

#8 of 12 months

Strong option

Hot, sunny, and increasingly busy — the outdoor culture is at its peak but the heat is building.

  • The most sunshine of any month: 8.6 hours daily; Tbilisi in summer light, with the ochre and rose facades of the balconied houses, is the city at its most photogenic
  • Rainfall drops significantly to 58mm after the spring; June is drier than May and the risk of a ruined outdoor day is lower
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
FactorJuneSeptember
Weather score
7
10
Value score
5
6
Crowd score
5
6
Events score
5
9
Atmosphere
7
10
Avg high temp28°C26°C
Monthly rain58mm42mm
Daily sunshine8.6hrs7.6hrs

June trade-offs

  • 28°C average high with hot afternoons; midday sightseeing in the Old Town and up to Narikala becomes genuinely uncomfortable — early morning or evening exploration is significantly more pleasant
  • Tourist numbers are solidly at their summer peak; the more popular bars in Sololaki and the sulphur bath district get crowded on weekend evenings
  • Accommodation prices at moderate level — not expensive by European standards, but no longer the extraordinary value of the low season

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
Scores compare months within Tbilisi. Climate data: Open Meteo ERA5 30-year normals (1991–2020). Methodology →