In April, Kotka typically sees daytime highs of 5.3°C and overnight lows around -1.6°C. Compared to the annual average high of 7.6°C, April runs -2.3°C.
April in Kotka averages a daytime high of 5.3°C and an overnight low of -1.6°C.
April runs -2.3°C compared to Kotka's annual average high of 7.6°C, ranking #7 of 12 months by warmth.
Plan for daytime highs near 5.3°C and cooler evenings around -1.6°C.