In December, Tbilisi typically sees daytime highs of 6.9°C and overnight lows around -0.4°C. Compared to the annual average high of 17.7°C, December runs -10.8°C.
December in Tbilisi averages a daytime high of 6.9°C and an overnight low of -0.4°C.
December runs -10.8°C compared to Tbilisi's annual average high of 17.7°C, ranking #10 of 12 months by warmth.
Plan for daytime highs near 6.9°C and cooler evenings around -0.4°C.