In April, Oulu typically sees daytime highs of 3.1°C and overnight lows around -4.7°C. Compared to the annual average high of 5.3°C, April runs -2.2°C.
April in Oulu averages a daytime high of 3.1°C and an overnight low of -4.7°C.
April runs -2.2°C compared to Oulu's annual average high of 5.3°C, ranking #7 of 12 months by warmth.
Plan for daytime highs near 3.1°C and cooler evenings around -4.7°C.