In October, Nagaoka typically sees daytime highs of 19.9°C and overnight lows around 10.0°C. Compared to the annual average high of 17.7°C, October runs +2.2°C.
October in Nagaoka averages a daytime high of 19.9°C and an overnight low of 10.0°C.
October runs +2.2°C compared to Nagaoka's annual average high of 17.7°C, ranking #6 of 12 months by warmth.
Plan for daytime highs near 19.9°C and cooler evenings around 10.0°C.