In August, Iwakuni typically sees daytime highs of 29.8°C and overnight lows around 23.2°C. Compared to the annual average high of 18.6°C, August runs +11.2°C.
August in Iwakuni averages a daytime high of 29.8°C and an overnight low of 23.2°C.
August runs +11.2°C compared to Iwakuni's annual average high of 18.6°C, ranking #1 of 12 months by warmth.
Plan for daytime highs near 29.8°C and cooler evenings around 23.2°C.