In December, Slupsk typically sees daytime highs of 2.4°C and overnight lows around -3.0°C. Compared to the annual average high of 11.3°C, December runs -8.9°C.
December in Slupsk averages a daytime high of 2.4°C and an overnight low of -3.0°C.
December runs -8.9°C compared to Slupsk's annual average high of 11.3°C, ranking #10 of 12 months by warmth.
Plan for daytime highs near 2.4°C and cooler evenings around -3.0°C.