Best year time to visit Nagano

General weather information about Nagano

Average annual temperature is 13.1 °C

Absolute maximum temperature: 36.8 °C

Absolute minimum temperature: -19.8 °C

Number of sunny days: 137

Number of rainy days: 203

Number of snow days: 25

Average annual precipitation: 1346 mm

Look at detailed online map of Nagano

* Weather data for Nagano Japan is based on climate observations for 2023 year

Nagano air temperature forecast for each month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Absolute maximum temperature (°C) 13.8 15 21.9 25 30.7 28.8 32.5 36.5 36.8 24.5 25.1 19.6
Average daytime temperature (°C) 5.5 6.6 14.3 17.6 21.3 24.8 29.7 33.7 30.1 19.4 15.1 9.6
Average temperature (°C) -0.4 1.3 7.5 11.1 15.2 20.1 24.8 27.5 23.8 13.4 8.7 3.2
Average night temperature (°C) -4.9 -2.5 2.3 5.5 9.6 15.8 20.2 22.1 19.4 8.8 4.1 -1.4
Absolute minimum temperature (°C) -19.8 -7.3 -4.9 -1.7 1.4 7.8 16.1 19 11.6 4.7 -2.5 -8

Nagano monthly weather indicators

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daylight maximum duration (h) 10.4 11.4 12.6 13.7 14.5 14.7 14.6 14 13 11.8 10.7 9.9
Daylight mean duration (h) 10 10.9 12 13.1 14.1 14.6 14.4 13.5 12.4 11.3 10.2 9.7
Daylight minimum duration (h) 9.7 10.4 11.4 12.6 13.7 14.5 14.1 13 11.9 10.7 9.9 9.7
Sunshine mean duration (h) 7 7.6 8.8 9 9.6 8.5 10.2 11.5 9.4 9 7.9 7.2
Precipitation (mm) 90 83 109 116 167 190 138 25 107 79 136 106
Sunny days 9 9 17 15 15 10 10 9 6 14 13 10
Rainy days 8 13 14 15 16 20 21 22 24 17 17 16
Snow days 14 6 5

Nagano - weather forecast by months

January February March April May June July August September October November December

Best time to visit Nagano:

The best time to visit Nagano during the most sunny months:

  • August — 11.5(h)

The largest precipitation sum in Nagano is at

  • May — 167(mm)
  • June — 190(mm)

Weather forecast in the closest to Nagano admin centers