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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.

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

Nikko Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Nikko - and find the best time to visit.

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 records 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 →

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 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.

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

Nikko 3-Day Forecast

More climate data for Nikko

Popular in December

Where to go in December - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.