In September, Hitachi typically sees daytime highs of 23.9°C and overnight lows around 17.3°C. Compared to the annual average high of 16.7°C, September runs +7.2°C.
September in Hitachi averages a daytime high of 23.9°C and an overnight low of 17.3°C.
September runs +7.2°C compared to Hitachi's annual average high of 16.7°C, ranking #3 of 12 months by warmth.
Plan for daytime highs near 23.9°C and cooler evenings around 17.3°C.