Nikko Weather in December
December in Nikko typically sees daytime highs of 7°C (45°F) and nighttime lows of -2°C (28°F). With the least snow/rainfall of the year, it's a reliably dry month. It falls within the winter season.
Rainfall in Nikko in December
The risk of rain is at its lowest this month, making it a reliable choice for outdoor plans, even if temperatures are on the cooler side. You can typically expect 18 days of snow/rain this month, averaging around 69 mm (2.7 in). Rain falls on many days this month, but usually in relatively small amounts. A light waterproof is more useful than a heavy umbrella.
Temperature in Nikko in December
Daytime temperatures in Nikko reach 7°C (45°F) in December, dropping to -2°C (28°F) at night. December is part of winter. Cold conditions persist throughout the day, so warm clothing is important from the moment you head outside. At -2°C (28°F) overnight, frost and ice are likely outside. Indoors, consider packing an extra blanket if you're unsure about the heating.
Sunshine in Nikko in December
The area enjoys a moderate level of sunlight, with around 176 hours. It's a good balance between sunny and cloudy days.December in Nikko 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 Nikko's climate page.
Nikko Temperature in December
Min Temperature
-2°C (28°F)
Max Temperature
7°C (45°F)
Chance of Rain
61%
Precipitation
69 mm (2.7 in)
Rainy days
18 days
Humidity
66%
Sunshine
176 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Nikko typically drop from around 9°C (48°F) at the start of December to approximately 4°C (39°F) by the end. Nights are very cold, with lows typically ranging from -5°C (23°F) to 0°C (32°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 Nikko in December
Browse day-by-day weather records for Nikko spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Nikko historical weather extremes in December
Our historical data for Nikko spans 1976 to 2025, revealing these weather extremes.
- On December 1, 1990, temperatures climbed to 22°C (72°F), marking the warmest December day on record.
- On December 18, 2005, Nikko saw its coldest December day with temperatures maxing out at -7°C (19°F).
- The coldest night in December in Nikko was on December 28, 2002, with a minimum of -12°C (10°F).
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 →
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What to Wear in Nikko in December
Dress warmly and in layers for your trip to Nikko in December. A good base layer system works wonders. Start with good thermal underwear, add something warm like a fleece sweater, then finish with a waterproof jacket on top. Wet weather is likely, so pack waterproof gear for multiple rainy days. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in Nikko 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 Nikko's climate page.
Temperature Rainfall Sunshine Humidity
See the full Nikko climate overview or explore weather in Japan.
