Is Nagano hot in June?
Days are typically warm at 26°C, while nights average 15.6°C.
Japan · 1991–2020 normal
Typical June weather in Nagano: 26°C by day, 15.6°C at night, 110 mm of rain over 10.5 wet days. These are measured 1991–2020 station normals, not a forecast.
In the year-round weather comparison, June scores 75 out of 100 (May leads the year at 78). Daylight is calculated as 14 h 39 from latitude 36.65°.
June at a glance
Plain answers from the measured climate record—not a forecast or a promise about a particular trip.
Days are typically warm at 26°C, while nights average 15.6°C.
The measured monthly average is 110 mm across about 11 wet days.
There are about 14 h 39 between sunrise and sunset at mid-month, calculated from the place latitude.
June ranks 2 of 12 in our weather comparison; May ranks first.
The evidence behind this page
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The weather comparison for Nagano is based on climate evidence, not payments from travel companies. Flight, accommodation and activity links will be clearly labelled when they are added; there are no booking offers on this page today.
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