In December, Gdynia typically sees daytime highs of 3.2°C and overnight lows around -2.3°C. Compared to the annual average high of 11.3°C, December runs -8.0°C.
December in Gdynia averages a daytime high of 3.2°C and an overnight low of -2.3°C.
December runs -8.0°C compared to Gdynia's annual average high of 11.3°C, ranking #10 of 12 months by warmth.
Plan for daytime highs near 3.2°C and cooler evenings around -2.3°C.