In September, Toyokawa typically sees daytime highs of 26.7°C and overnight lows around 19.1°C. Compared to the annual average high of 19.1°C, September runs +7.6°C.
September in Toyokawa averages a daytime high of 26.7°C and an overnight low of 19.1°C.
September runs +7.6°C compared to Toyokawa's annual average high of 19.1°C, ranking #3 of 12 months by warmth.
Plan for daytime highs near 26.7°C and cooler evenings around 19.1°C.