Mountain air

Nikkō weather in December

Temperature, rain and sunshine in December: long-term averages from 30 years of weather data, not a forecast.

31

Holiday weather in December

Poor

Best time to visit: April – May

What is the weather like in Nikkō in December?

In December, Nikkō is cold: daytime highs average 7 °C, and nights often drop below freezing (−2 °C). Expect around 5.1 hours of sunshine a day. Rain is frequent, with about 9 rainy days and 65 mm in total. Snow falls on about 3 days. All in all, December is not an ideal month for a holiday in Nikkō.

December compared

How the weather changes from November to January. Tap a month to open it.

NovemberNovDecemberDecJanuaryJan
Score563128
Day13°7°4°
Night3°−2°−6°
Sun4.9 h5.1 h5.5 h
Rain days1199

More details for December

Daylight
9 h 40 min06:47 – 16:27
UV index
2 · lowclear sky, noon (estimate)All months
Muggy days
0 daysdew point 18 °C or moreAll months
Wind
11 km/haverage daily peakAll months
Cloud cover
50 %on averageAll months
Hot days
0 days30 °C or moreAll months
Snow days
3 days1 cm or more of fresh snowAll months
Time zone
UTC+9offset from UTC

How the score comes together

  • Temperatureweight 50 %10 %
  • Sunshineweight 20 %35 %
  • Few rainy daysweight 30 %64 %

Each factor is rated from 0 to 100 % and weighted for the travel style “Mountain air”.

What to pack in December

  • Warm jacket
  • Hat, scarf & gloves
  • Rain jacket or umbrella

Nikkō in December: quick answers

Is Nikkō hot in December?

No. In December, Nikkō is cold: daytime highs average 7 °C and nights drop to about −2 °C.

Does it rain much in Nikkō in December?

Rain is frequent, with about 9 rainy days and 65 mm in total.

Nikkō month by month

Climate averages 1996–2025 (sunshine partly WMO station normals 1991–2020), not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences