JapanThe climate of Nagano
The current climate in Nagano features temperatures ranging from a high of 31°C to a low of 4°C throughout the year. The average yearly temperature is around 19°C. At night, temperatures in the colder months average around -3°C and in the warmer months around 22°C.
Average temperatures and precipitation
This chart shows the average monthly maximum and minimum temperatures (in degrees Celsius) and average monthly rainfall (in millimeters) for Nagano, Japan.
Temperature records
The highest temperature recorded in Nagano in recent years was 38°C in August 2018. The lowest daytime temperature recorded was -5°C in January 2023.
Precipitation and snowfall
On average, Nagano gets 1052 mm of precipitation each year. Of this, about 219 cm is snowfall. For comparison, New York gets 1142 mm of precipitation each year.
The typhoon season in Nagano runs from June to November.
Curious about the weather in other parts of Japan? Check out the climate and weather for spots like Tokyo, Kyōto, Osaka, or explore other destinations in Japan.
Best time to visit Nagano?
The best time to visit Nagano for sunny weather is April through June and October. During this period, you'll have nice temperatures and not too much rain, making it a great time to visit Nagano. In the other months of the year, there's too much rain or the temperature isn't ideal for a visit if you want sunny and pleasant weather.
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Climate Table of Nagano
The climate table of Nagano shows the average temperatures, rainfall, snow, and UV index per month. The table provides an overview of the average day and night temperatures in degrees Celsius, the total amount of rainfall in millimeters, the total snowfall in centimeters, and the UV index for each month. Rainfall is always measured as water, even if it's snow or hail.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
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| Temp. max (°C) | 4 | 6 | 12 | 18 | 24 | 26 | 30 | 31 | 26 | 20 | 14 | 7 |
| Temp. min (°C) | -3 | -3 | 1 | 6 | 11 | 16 | 22 | 22 | 18 | 11 | 5 | 0 |
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| Precipitation (mm) | 70 | 49 | 58 | 70 | 74 | 116 | 146 | 125 | 127 | 110 | 44 | 63 |
| Snow (cm) | 82 | 53 | 19 | 3,5 | 0 | 0 | 0 | 0 | 0 | 0 | 8,2 | 52 |
| UV Index | 4 | 5 | 6 | 7 | 7 | 6 | 6 | 6 | 5 | 5 | 4 | 3 |
Click on the month name to see more weather details, like daily averages, temperatures, and precipitation for the past years in that month.
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Temperature charts
These charts display the average temperatures in Nagano, Japan. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Average Temperature per Month in Nagano
Yearly Temperature in Nagano
Precipitation charts
These charts show the average amount of precipitation in Nagano, Japan. Precipitation is always measured as water, even when it falls as snow or hail. The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Average Precipitation per Month in Nagano
Total Yearly Precipitation in Nagano
Average Snowfall per Month in Nagano
Total Yearly Snowfall in Nagano
UV index chart
This chart shows the average UV index per month in Nagano, Japan. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.
Average UV Index per Month in Nagano
Weather experiences in Nagano
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Average weather in Nagano by month
Click on a month below to see detailed weather info for Nagano. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.