In June, Karatsu typically sees daytime highs of 25.0°C and overnight lows around 18.8°C. Compared to the annual average high of 19.4°C, June runs +5.6°C.
June in Karatsu averages a daytime high of 25.0°C and an overnight low of 18.8°C.
June runs +5.6°C compared to Karatsu's annual average high of 19.4°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 25.0°C and cooler evenings around 18.8°C.