In June, Nagano typically sees daytime highs of 23.3°C and overnight lows around 14.0°C. Compared to the annual average high of 15.5°C, June runs +7.9°C.
June in Nagano averages a daytime high of 23.3°C and an overnight low of 14.0°C.
June runs +7.9°C compared to Nagano's annual average high of 15.5°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 23.3°C and cooler evenings around 14.0°C.