In January, Iwata typically sees daytime highs of 9.9°C and overnight lows around 1.9°C. Compared to the annual average high of 20.0°C, January runs -10.1°C.
January in Iwata averages a daytime high of 9.9°C and an overnight low of 1.9°C.
January runs -10.1°C compared to Iwata's annual average high of 20.0°C, ranking #12 of 12 months by warmth.
Plan for daytime highs near 9.9°C and cooler evenings around 1.9°C.