In June, Iwatsuki typically sees daytime highs of 25.5°C and overnight lows around 18.4°C. Compared to the annual average high of 19.6°C, June runs +6.0°C.
June in Iwatsuki averages a daytime high of 25.5°C and an overnight low of 18.4°C.
June runs +6.0°C compared to Iwatsuki's annual average high of 19.6°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 25.5°C and cooler evenings around 18.4°C.