In December, Bialystok typically sees daytime highs of 0.9°C and overnight lows around -5.6°C. Compared to the annual average high of 11.8°C, December runs -10.8°C.
December in Bialystok averages a daytime high of 0.9°C and an overnight low of -5.6°C.
December runs -10.8°C compared to Bialystok's annual average high of 11.8°C, ranking #10 of 12 months by warmth.
Plan for daytime highs near 0.9°C and cooler evenings around -5.6°C.