Climate averages 1991–2020
Rustavi weather
in December.
A cold, fairly dry month: the 11th warmest and the joint 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a cold month in Rustavi: daytime highs average 7.6°C and nights cool to about -2.3°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 22 mm of rain on roughly 5 days, which makes December a fairly dry month (the joint 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 9 h 14 min on an average December day.
The nearest other city in this atlas is Tbilisi (19 km away). In December its highs average 6.7°C, 0.9°C cooler than Rustavi, with 29 mm of rain.
Among the 4 cities listed in Georgia, Rustavi ranks 3rd of 4 for the warmest December highs and 1st of 4 for the driest December (rainfall, lowest first). The mean December high of those 4 cities is 8.4°C; Rustavi is 0.8°C cooler than that mean.
From December to January, average highs fall by 1.0°C to 6.6°C, and monthly rainfall falls from 22 mm to 19 mm.
The annual picture
December 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 | 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, selected | 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
December in nearby cities
- Tbilisi in DecemberGeorgia · 19 kmHigh 6.7°C · Low -2.5°C · 29 mm rain
- Vanadzor in DecemberArmenia · 93 kmHigh 2.6°C · Low -7.1°C · 38 mm rain
- Gyumri in DecemberArmenia · 128 kmHigh 0.1°C · Low -7.8°C · 34 mm precipitation
- Ganja in DecemberAzerbaijan · 152 kmHigh 7.2°C · Low -1.0°C · 17 mm rain
- Yerevan in DecemberArmenia · 159 kmHigh 3.8°C · Low -4.9°C · 29 mm rain
- Vladikavkaz in DecemberRussia · 166 kmHigh 4.3°C · Low -4.8°C · 26 mm rain
- Nazran in DecemberRussia · 186 kmHigh 3.7°C · Low -3.9°C · 27 mm rain
- Kars in DecemberTurkey · 192 kmHigh 0.5°C · Low -9.8°C · 36 mm precipitation
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.