Tbilisi weather by month
Tbilisi runs from about 2°C in January to 24°C in July, with May the wettest month at 129 mm.
warmest month
July
24°C
coolest month
January
2°C
wettest month
May
129 mm
worst air month
November
16 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 2°C | 31 mm | 195 h | 10 |
| February | 3°C | 30 mm | 173 h | 7 |
| March | 6°C | 78 mm | 251 h | 7 |
| April | 15°C | 21 mm | 305 h | 5 |
| May | 15°C | 129 mm | 272 h | 5 |
| June | 22°C | 75 mm | 368 h | 5 |
| July | 24°C | 82 mm | 344 h | 10 |
| August | 24°C | 34 mm | 350 h | 8 |
| September | 19°C | 56 mm | 277 h | 7 |
| October | 12°C | 60 mm | 251 h | 8 |
| November | 6°C | 72 mm | 216 h | 16 |
| December | 2°C | 26 mm | 213 h | 10 |
About 3,215 hours of sun a year. Roughly 70 rainy days a year.
These are long-run climate normals, not a forecast. A given year can sit well outside them. PM2.5 is a global model: near the coast it counts sea salt as fine particulate and reads high against ground stations, sometimes by a factor of two. Use the shape of the year, not the absolute number.
where these numbers come from
- · Temperature, rainfall and sunshine: ECMWF ERA5 reanalysis climate normals via Open-Meteo (CC BY 4.0), fetched once and stored.
- · PM2.5: Copernicus CAMS reanalysis, monthly means. Modelled, not station readings; near coasts CAMS counts sea salt as PM2.5 and reads high.
Last reviewed 2026-05-22. Full method, licences and the list of sources we rejected are on the methodology page.