Niseko Weather in December
In Niseko, December brings very low daytime temperatures around 1°C (34°F), with nights cooling to -7°C (19°F). Expect quite a bit of snow/rainfall this month.
Rainfall in Niseko in December
On average, there are about 29 days with snow/rain during this month, averaging 111 mm (4.4 in). This month brings frequent, heavy showers. Both the number of wet days and the rainfall totals are on the high side.
Temperature in Niseko in December
December in Niseko sees highs of 1°C (34°F) and lows of -7°C (19°F) overnight. December is typically considered a winter month. Staying warm is the main priority this month, especially during mornings and evenings. Nights are well below freezing at -7°C (19°F). An extra blanket is a good idea if you feel the cold, especially in older or less well-heated accommodation. As one of the coldest months, it's important to layer up to stay warm. Don't let the chill catch you off-guard.
Sunshine in Niseko in December
This month sees fewer sunny days, with about 87 hours of sunshine, perfect for those who enjoy cooler temperatures.December in Niseko has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, 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 Niseko's climate page.
Niseko Temperature in December
Min Temperature
-7°C (19°F)
Max Temperature
1°C (34°F)
Chance of Rain
97%
Precipitation
111 mm (4.4 in)
Rainy days
29 days
Humidity
71% *
Sunshine
87 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Niseko typically drop from around 3°C (37°F) at the start of December to approximately -1°C (30°F) by the end. Nights are very cold, with lows typically ranging from -8°C (18°F) to -3°C (27°F).
Average temperatures in December
Daily Historical Precipitation
50-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 Niseko in December
Browse day-by-day weather records for Niseko spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Niseko historical weather extremes in December
Based on 49 years of weather observations in Niseko between 1976 and 2025, these are the recorded extremes.
- Niseko recorded its highest December temperature of 14°C (57°F) on December 7, 1990.
- The coldest December day was on December 16, 1994, with a maximum of -10°C (14°F).
- The lowest overnight temperature recorded in December was -19°C (-2°F) (December 31, 2020).
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 Niseko in December
We recommend to layer up for chilly conditions in Niseko 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. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. You can probably leave your sunglasses at home, because sunny days are pretty rare this month.What To Do in Niseko 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 Niseko's climate page.
Temperature Rainfall Sunshine Humidity
See the full Niseko climate overview or explore weather in Japan.
