In December, Suwalki typically sees daytime highs of 0.1°C and overnight lows around -5.5°C. Compared to the annual average high of 10.6°C, December runs -10.6°C.
December in Suwalki averages a daytime high of 0.1°C and an overnight low of -5.5°C.
December runs -10.6°C compared to Suwalki's annual average high of 10.6°C, ranking #10 of 12 months by warmth.
Plan for daytime highs near 0.1°C and cooler evenings around -5.5°C.