Climate averages 1991–2020
Rustavi weather
in September.
A warm, fairly dry month: the 4th warmest and the 4th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Rustavi: daytime highs average 26.0°C and nights cool to about 15.7°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 21 mm of rain on roughly 4 days, which makes September a fairly dry month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 31 min on an average September day.
The nearest other city in this atlas is Tbilisi (19 km away). In September its highs average 24.6°C, 1.3°C cooler than Rustavi, with 51 mm of rain.
Among the 4 cities listed in Georgia, Rustavi ranks 1st of 4 for the warmest September highs and 1st of 4 for the driest September (rainfall, lowest first). The mean September high of those 4 cities is 25.0°C; Rustavi is 1.0°C warmer than that mean.
From September to October, average highs fall by 6.4°C to 19.6°C, and monthly rainfall rises from 21 mm to 36 mm.
The annual picture
September in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Rustavi climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 6.6°C-3.3°C | -3.3°C | 19 | 4.9 | 9.510 h |
| February | 8.0°C-2.5°C | -2.5°C | 22 | 5.4 | 10.611 h |
| March | 12.6°C1.6°C | 1.6°C | 40 | 8.1 | 11.912 h |
| April | 17.8°C6.8°C | 6.8°C | 52 | 9.6 | 13.313 h |
| May | 22.9°C11.9°C | 11.9°C | 45 | 9.9 | 14.514 h |
| June | 28.0°C16.4°C | 16.4°C | 26 | 6.2 | 15.115 h |
| July | 31.3°C20.1°C | 20.1°C | 16 | 3.5 | 14.915 h |
| August | 31.4°C20.3°C | 20.3°C | 15 | 3.6 | 13.814 h |
| September, selected | 26.0°C15.7°C | 15.7°C | 21 | 4.0 | 12.513 h |
| October | 19.6°C9.6°C | 9.6°C | 36 | 7.3 | 11.111 h |
| November | 12.5°C2.4°C | 2.4°C | 34 | 6.1 | 9.910 h |
| December | 7.6°C-2.3°C | -2.3°C | 22 | 5.0 | 9.29 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
September in nearby cities
- Tbilisi in SeptemberGeorgia · 19 kmHigh 24.6°C · Low 14.7°C · 51 mm rain
- Vanadzor in SeptemberArmenia · 93 kmHigh 19.3°C · Low 10.2°C · 73 mm rain
- Gyumri in SeptemberArmenia · 128 kmHigh 20.9°C · Low 8.4°C · 28 mm rain
- Ganja in SeptemberAzerbaijan · 152 kmHigh 23.6°C · Low 15.1°C · 44 mm rain
- Yerevan in SeptemberArmenia · 159 kmHigh 25.4°C · Low 12.8°C · 8.4 mm rain
- Vladikavkaz in SeptemberRussia · 166 kmHigh 19.8°C · Low 11.3°C · 98 mm rain
- Nazran in SeptemberRussia · 186 kmHigh 21.0°C · Low 12.6°C · 62 mm rain
- Kars in SeptemberTurkey · 192 kmHigh 20.7°C · Low 7.7°C · 34 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Rustavi) is explained once on the Rustavi year overview and on the Sources, method and limits page.