In December, Brno typically sees daytime highs of 2.2°C and overnight lows around -2.7°C. Compared to the annual average high of 13.1°C, December runs -10.9°C.
December in Brno averages a daytime high of 2.2°C and an overnight low of -2.7°C.
December runs -10.9°C compared to Brno's annual average high of 13.1°C, ranking #11 of 12 months by warmth.
Plan for daytime highs near 2.2°C and cooler evenings around -2.7°C.