In April, Iwakuni typically sees daytime highs of 17.0°C and overnight lows around 8.7°C. Compared to the annual average high of 18.6°C, April runs -1.5°C.
April in Iwakuni averages a daytime high of 17.0°C and an overnight low of 8.7°C.
April runs -1.5°C compared to Iwakuni's annual average high of 18.6°C, ranking #7 of 12 months by warmth.
Plan for daytime highs near 17.0°C and cooler evenings around 8.7°C.