In August, Matsuyama typically sees daytime highs of 29.4°C and overnight lows around 22.8°C. Compared to the annual average high of 18.3°C, August runs +11.2°C.
August in Matsuyama averages a daytime high of 29.4°C and an overnight low of 22.8°C.
August runs +11.2°C compared to Matsuyama's annual average high of 18.3°C, ranking #1 of 12 months by warmth.
Plan for daytime highs near 29.4°C and cooler evenings around 22.8°C.