In April, Koszalin typically sees daytime highs of 11.5°C and overnight lows around 1.1°C. Compared to the annual average high of 11.8°C, April runs -0.3°C.
April in Koszalin averages a daytime high of 11.5°C and an overnight low of 1.1°C.
April runs -0.3°C compared to Koszalin's annual average high of 11.8°C, ranking #7 of 12 months by warmth.
Plan for daytime highs near 11.5°C and cooler evenings around 1.1°C.