In April, Iwamizawa typically sees daytime highs of 10.7°C and overnight lows around 0.7°C. Compared to the annual average high of 11.4°C, April runs -0.7°C.
April in Iwamizawa averages a daytime high of 10.7°C and an overnight low of 0.7°C.
April runs -0.7°C compared to Iwamizawa's annual average high of 11.4°C, ranking #7 of 12 months by warmth.
Plan for daytime highs near 10.7°C and cooler evenings around 0.7°C.