In June, Nagaoka typically sees daytime highs of 25.6°C and overnight lows around 16.1°C. Compared to the annual average high of 17.7°C, June runs +7.9°C.
June in Nagaoka averages a daytime high of 25.6°C and an overnight low of 16.1°C.
June runs +7.9°C compared to Nagaoka's annual average high of 17.7°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 25.6°C and cooler evenings around 16.1°C.