Climate ▸Forecast ▸December ▸January ▸
JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember

Myoko Weather in December

During December, Myoko experiences low daytime temperatures of 6°C (43°F) and cooler nights around -2°C (28°F). December sits within the rainy season, and part of the winter season, so expect regular and often heavy snow/rainfall.

Rainfall in Myoko in December

As part of the rainy season, Myoko sees around 23 days of rain in December, with an average of 219 mm (8.6 in). Rainfall this month is frequent and tends to be fairly heavy when it does fall. Packing waterproofs is a good idea.

Temperature in Myoko in December

In December, Myoko gets low temperatures, with highs of 6°C (43°F). Nights cool to around -2°C (28°F). December is in the winter season. Temperatures remain on the cold side all day. A proper warm jacket is worth having, not just for evenings. With lows of -2°C (28°F), nights are freezing. Packing a spare blanket is worth considering if you're staying somewhere that might not be fully heated.

Sunshine in Myoko in December

With about 137 hours of sunshine, the area enjoys a nice balance of sun and rainy moments, creating a pleasant environment.

December in Myoko has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.

Select a Month

Check the conditions for any month of the year.

For a detailed overview over the year and the best time to visit Japan, check out our Myoko's climate page.

Myoko Temperature in December

Min TemperatureMin Temperature -2°C (28°F)  
Max TemperatureMax Temperature 6°C (43°F)  
Chance of RainChance of Rain 77%  
PrecipitationPrecipitation 219 mm (8.6 in)  
Rainy daysRainy days 23 days  
HumidityHumidity 77% *  
SunshineSunshine 137 hours *  
Percentage SunshinePercentage Sunshine *  
* Data from: Nagano, Japan (27 KM, 16 Miles).

Daily Historical Temperatures

49-year average (1976-2025)

Based on our historical records, temperatures in Myoko typically drop from around 10°C (50°F) at the start of December to approximately 5°C (41°F) by the end. Nights are cold, with lows typically ranging from -1°C (30°F) to 3°C (37°F).

Average temperatures in December

Daily Historical Precipitation

49-year average (1976-2025)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in December

Historical weather for Myoko in December

Browse day-by-day weather records for Myoko spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Myoko historical weather extremes in December

Based on 19 years of weather observations in Myoko between 2006 and 2025, these are the recorded extremes.

  • The warmest day in December was on December 4, 2018, with a maximum of 21°C (70°F).
  • Myoko experienced its chilliest December day on December 26, 2021, reaching only -2°C (28°F).
  • Myoko registered its coldest December night on December 31, 2006, with temperatures dropping to -6°C (21°F).
  • The wettest December day on record brought 64 mm (2.5 in) of precipitation to Myoko (December 27, 2006).

Best Places in Japan in December

Find out more about the weather in Japan and which places have the best travel conditions in this month. See all of Japan in December →

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 (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Myoko in December

We recommend to layer up for chilly conditions in Myoko in December. You could start with thermal underwear or a good base layer to keep your core warm on the cooler days this month. Maybe also add a sweater or fleece, and top it off with a windproof jacket. Also bring a poncho, it will rain a lot! Waterproof everything you can. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in Myoko in December

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming
5/10
Cycling
4/10
Walking
4/10
Camping
1/10
Outdoor sports
4/10

Select a Month

Check the conditions for any month of the year.

For a detailed overview over the year and the best time to visit Japan, check out our Myoko's climate page.

More climate data for Myoko