Joetsu Weather in December
December in Joetsu brings low temperatures around 9°C (48°F) during the day, dropping to 2°C (36°F) at night, and as part of the rainy season, heavy rainfall is common.
Rainfall in Joetsu in December
As part of the rainy season, Joetsu sees around 26 days of rain in December, with an average of 246 mm (9.7 in). Rainy season showers tend to be fairly substantial. A good rain jacket or umbrella is worth having with you most days.
Temperature in Joetsu in December
December in Joetsu brings low temperatures, with highs of 9°C (48°F) and nights around 2°C (36°F). The winter season is characteristic of December. The days stay cool from start to finish. Layering up well will make outdoor time much more comfortable. With lows around 2°C (36°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.
Sunshine in Joetsu in December
With limited sunshine this month, there are about 79 hours of sun. It's ideal for those who prefer a cooler, cloudier climate.December in Joetsu can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.
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 Joetsu's climate page.
Joetsu Temperature in December
Min Temperature
2°C (36°F)
Max Temperature
9°C (48°F)
Chance of Rain
88%
Precipitation
246 mm (9.7 in)
Rainy days
26 days
Humidity
76%
Sunshine
79 hours
Percentage Sunshine
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 →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Joetsu in December
We recommend to layer up for chilly conditions in Joetsu 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 aren't essential this month, though you might want them for the occasional bright moment.What To Do in Joetsu in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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 Joetsu's climate page.
Temperature Rainfall Sunshine Humidity
See the full Joetsu climate overview or explore weather in Japan.
