In April, Ostroleka typically sees daytime highs of 12.9°C and overnight lows around 1.6°C. Compared to the annual average high of 11.9°C, April runs +1.0°C.
April in Ostroleka averages a daytime high of 12.9°C and an overnight low of 1.6°C.
April runs +1.0°C compared to Ostroleka's annual average high of 11.9°C, ranking #6 of 12 months by warmth.
Plan for daytime highs near 12.9°C and cooler evenings around 1.6°C.