In June, Iwakuni typically sees daytime highs of 24.0°C and overnight lows around 17.7°C. Compared to the annual average high of 18.6°C, June runs +5.4°C.
June in Iwakuni averages a daytime high of 24.0°C and an overnight low of 17.7°C.
June runs +5.4°C compared to Iwakuni's annual average high of 18.6°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 24.0°C and cooler evenings around 17.7°C.