Weather in Nagano in december 2025

The weather in Nagano-shi in december comes from statistical datas on the last years. You can view the weather statistics for all the month, but also navigating through the tabs for the beginning, the middle and the end of the month.

Average weather throughout december

very bad weather 942.2cm

Weather at 6am
31°F

Clear/Sunny

22%

Partly Cloudy

12%

Moderate rain at times

12%

Weather at 12pm
43°F

Clear/Sunny

24%

Moderate rain at times

19%

Partly Cloudy

17%

Weather at 6pm
32°F

Clear/Sunny

16%

Partly Cloudy

14%

Moderate rain at times

13%

Weather at 3am
31°F

Snow showers

30%

Clear/Sunny

22%

Partly Cloudy

21%

Fog

10%



Evolution of daily average temperature and precipitation in Nagano in december

These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Nagano in december.


The climate of Nagano in december is very bad

the weather in Nagano-shi in december is wet (with 6.6in of precipitation over 12 days). The situation is deteriorating compared to the previous month since in november there is an average of 5in of precipitation over 7 days.

The climate is rather cold around this city december. Plan to cover you well! The thermometer averaged maximum of 43°F. In the morning the temperature drops to 29°F. Thus, the mean temperature average on this month of december in Nagano-shi is 36°F. These temperatures are far removed from those records observed in Nagano-shi in december with a maximum record of 70°F in 2018 and a minimum record of 9°F in 2010. You can expect to have about 23 days with temperatures below 32°F, or 74% of time.

On this month of december, day length in Nagano-shi is generally 09:40. Sunrise is at 06:52 and sets at 16:32.



December: another location in Japan?

If you want to go to Japan in december, there are destinations with better weather than Nagano:

In december, Ogasawara Islands, Tanega-shima and Yakushima have good weather.

Finally, Tokyo, Kochi, Okinawa, Kagoshima (Kyushu), Miyakojima and Nagasaki have a tolerable climate, but better than Nagano.

more information about Japan's weather in december


Seasonal average climate and temperature of Nagano in december

Check below seasonal norms These statistics are generated from the weather statements earlier years of the month of december.

December
Outside temperature
Average temperature 36°F
Highest temperature 43°F
Lowest temperature 29°F
Highest record temperature 70°F
(2018)
Lowest record temperature 9°F
(2010)
Number of days at +65°F 0 day(s)
(0%)
Number of days at -32°F 23 day(s)
(74%)
Wind
Wind speed 12km/h
Wind temperature 25°F
Precipitation (rainfall)
Rainfall 6.6in
Number of days with rainfall 12 day(s)
(38%)
Record daily rainfall 1.6in
(2009)
Snowfall 942.2cm
Other climate data
Humidity 89%
Visibility 7.72km
Cloud cover 46%
UV index 2
Daily sunshine hours 8
Sunrise and sunset
Time of sunrise 06:52
Time of sunset 16:32
Length of day 09:40
Our opinion about the weather in december
Our opinion at whereandwhen.net very bad



How was the weather last december?

Here is the day by day recorded weather in Nagano in december 2024:

01-12-2024
Clear/Sunny
23°F to 45°F
02-12-2024
Clear/Sunny
27°F to 47°F
03-12-2024
Patchy rain nearby
29°F to 45°F
04-12-2024
Patchy rain nearby
32°F to 45°F
05-12-2024
Patchy rain nearby
25°F to 41°F
06-12-2024
Light rain
23°F to 36°F
07-12-2024
Patchy heavy snow
23°F to 36°F
08-12-2024
Patchy sleet nearby
18°F to 32°F
09-12-2024
Clear/Sunny
13°F to 31°F
10-12-2024
Clear/Sunny
16°F to 38°F
11-12-2024
Light freezing rain
22°F to 36°F
12-12-2024
Patchy light snow
14°F to 31°F
13-12-2024
Partly Cloudy
18°F to 34°F
14-12-2024
Light snow showers
22°F to 32°F
15-12-2024
Light freezing rain
16°F to 41°F
16-12-2024
Light freezing rain
20°F to 36°F
17-12-2024
Patchy light drizzle
22°F to 36°F
18-12-2024
Patchy heavy snow
20°F to 32°F
19-12-2024
Moderate snow
18°F to 34°F
20-12-2024
Clear/Sunny
16°F to 34°F
21-12-2024
Cloudy
20°F to 41°F
22-12-2024
Moderate or heavy snow showers
23°F to 36°F
23-12-2024
Light freezing rain
14°F to 32°F
24-12-2024
Patchy snow nearby
16°F to 32°F
25-12-2024
Clear/Sunny
13°F to 32°F
26-12-2024
Patchy rain nearby
22°F to 40°F
27-12-2024
Patchy heavy snow
20°F to 34°F
28-12-2024
Patchy moderate snow
18°F to 31°F
29-12-2024
Patchy sleet nearby
13°F to 29°F
30-12-2024
Clear/Sunny
11°F to 36°F
31-12-2024
Patchy light rain
22°F to 38°F

Map: other cities in Japan in december

Cities near Nagano:

Karuizawa in decembervery bad weather
Matsumoto in decembervery bad weather
Joetsu in decembervery bad weather
Maebashi in decembervery bad weather
Toyama in decembervery bad weather
Takayama in decembervery bad weather
Nagaoka in decembervery bad weather
Kofu in decembervery bad weather
Gokayama in decembervery bad weather
Nanao in decemberbad weather
Nikko in decembervery bad weather
Kanazawa in decembervery bad weather
Japan in december: See full list of cities

Click over cities on the map for information about the weather in december.

Legend: Nagano perfect weather good tolerable bad very bad


Weather data for Nagano in december:

Weather data for Nagano for december are derived from an average of the weather forecast since 2009 in Nagano. There is a margin of error and these forecasts are to be considered as general information only. The weather in Nagano can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Nagano.


Weather in november in Nagano
Weather in january in Nagano
Change units