Nagano weather in December

Considering a trip to Nagano this December and wondering about the expected weather conditions? Find all the crucial information you need right here, addressing your question:

What is the weather like in Nagano in December?

Nagano is a region in Japan. December in Nagano generally has cold temperatures, with precipitation levels ranging from moderate to heavy. The month of December is in the winter season.

The average maximum temperatures are cold and range from 2°C in Omachi to 7°C in Achi. Nighttime temperatures generally drop to -2°C in Achi and -7°C in Omachi. In many regions in Japan, December is characterized by its biting cold temperatures. If you're venturing into these areas during this time, it's crucial to be adequately prepared. Ensure you layer up with warm clothing to fight off the chill and stay comfortable.

In December, precipitation varies across different areas. From moderate snow/rainfall in Minamimaki with an average of 56 mm to heavy snow/rainfall in Otari with 238 mm. Most areas see fewer sunny days, with a projection of about 86 hours of sunshine in Hakuba. This reduced sunlight makes it ideal for those who prefer dimmer, overcast conditions over bright sunny days.

For specific regional insights in Nagano for December, refer to the map provided below. For an in-depth overview of the yearly weather conditions, do visit our Nagano climate page.

Where to go in Nagano in December

Find the average weather conditions in December for the most popular destinations in Nagano on the map below. Click on a destination dot for more detailed information.

Map not visible? Whoops sorry! Please refresh the page.
Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

Popular destinations in Nagano

What is the weather like in December for the 5 most popular destinations in Nagano?

Average weather in Hakuba

In December Hakuba generally has low temperatures with maximum daytime temperatures around 3°C, minimum nighttime temperatures around -5°C and heavy monthly snow/rainfall. So on average the conditions are poor that month.

Hakuba
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly snow/rainfall Snow/rainfall
Monthly rainy days Rainy days
Weather conditions Weather
10°C 
1°C 
110 hours 
193 mm 
18 days 
poor 
3°C 
-5°C 
86 hours 
221 mm 
23 days 
poor 
January   >> January
>>  
0°C 
-7°C 
80 hours 
223 mm 
26 days 
poor 
Climate in Hakuba

Average weather in Yamanouchi

In December Yamanouchi generally has low temperatures with maximum daytime temperatures around 5°C, minimum nighttime temperatures around -4°C and high monthly snow/rainfall. So on average the conditions are poor that month.

Yamanouchi
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly snow/rainfall Snow/rainfall
Monthly rainy days Rainy days
Weather conditions Weather
11°C 
2°C 
141 hours 
105 mm 
17 days 
poor 
5°C 
-4°C 
137 hours 
129 mm 
21 days 
poor 
January   >> January
>>  
2°C 
-7°C 
128 hours 
144 mm 
24 days 
poor 
Climate in Yamanouchi

Average weather in Matsumoto

In December Matsumoto generally has low temperatures with maximum daytime temperatures around 5°C, minimum nighttime temperatures around -5°C and high monthly snow/rainfall. So on average the conditions are poor that month.

Matsumoto
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly snow/rainfall Snow/rainfall
Monthly rainy days Rainy days
Weather conditions Weather
12°C 
1°C 
141 hours 
123 mm 
15 days 
poor 
5°C 
-5°C 
137 hours 
119 mm 
17 days 
poor 
January   >> January
>>  
2°C 
-8°C 
128 hours 
121 mm 
19 days 
poor 
Climate in Matsumoto

Average weather in Nozawa Onsen

In December Nozawa Onsen generally has low temperatures with maximum daytime temperatures around 6°C, minimum nighttime temperatures around -3°C and heavy monthly snow/rainfall. So on average the conditions are poor that month.

Nozawa Onsen
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly snow/rainfall Snow/rainfall
Monthly rainy days Rainy days
Weather conditions Weather
12°C 
3°C 
106 hours 
146 mm 
18 days 
poor 
6°C 
-3°C 
79 hours 
189 mm 
22 days 
poor 
January   >> January
>>  
3°C 
-5°C 
67 hours 
206 mm 
25 days 
poor 
Climate in Nozawa Onsen

Average weather in Karuizawa

In December Karuizawa generally has low temperatures with maximum daytime temperatures around 7°C, minimum nighttime temperatures around -2°C and moderate monthly snow/rainfall. So on average the conditions are poor that month.

Karuizawa
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly snow/rainfall Snow/rainfall
Monthly rainy days Rainy days
Weather conditions Weather
12°C 
3°C 
141 hours 
75 mm 
13 days 
7°C 
-2°C 
137 hours 
63 mm 
15 days 
poor 
January   >> January
>>  
4°C 
-5°C 
128 hours 
74 mm 
18 days 
poor 
Climate in Karuizawa

Is your destination not in the list? Have a look at other destinations in Nagano, in Japan.

Is December the best time to visit Nagano?

In our opinion, December may not be the ideal time to visit Nagano due to the typically poor weather in Hakuba.

Generally speaking, provide poor weather in Hakuba.

Interested in more climate information?

We have much more information about the climate in Nagano. Interested in the weather conditions in a specific month? Select the month below.

  • January      
  • February      
  • March      
  • April      
  • May      
  • June      
  • July      
  • August      
  • September      
  • October      
  • November      
  • December      
  • Weather and climate has detailed information for every country in the world. Are you going to Japan? Get detailed historical weather averages for many cities in Japan.

    Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.