Temperatures in Japan in January

Japan in January has maximum daytime temperatures ranging from very low in Mount Fuji with -15°C (5°F) to pleasant temperatures in Ishigaki Island with 22°C (71°F). Nighttime temperatures generally drop to 17°C (62°F) in Ishigaki Island and -21°C (-6°F) in Mount Fuji. January is a winter month in Japan. It is one of the coldest months of the year.

What is the temperature for the different cities in Japan in January

Find the average daytime temperatures in January for the most popular destinations in Japan on the map below. Click on a destination dot for more detailed information.

Legend very warm warm pleasant moderate cold very cold
Very warm means maximum temperatures above 30ºC (86ºF). Warm: 22ºC (72ºF) to 30ºC (86ºF). Pleasant: 18ºC (64ºF) to 22ºC (72ºF) Moderate: 12ºC (54ºF) to 18ºC (64ºF). Cold: 2ºC (36ºF) to 12ºC (54ºF). Very cold: lower than 2ºC (36ºF)

  • What is the warmest city in January in Japan?
  • Ishigaki Island tops the warmest city list in our database with average maximum daytime temperatures around 22°C (71°F) and minimum nighttime temperature around 17°C (62°F).

  • What is the coldest city in January in Japan?
  • The coldest city in January in Japan is Mount Fuji when we check our database. The maximum daytime temperatures are around -15°C (5°F) and minimum nighttime temperatures fall around -21°C (-6°F).

  • How much sun does Japan get in January?
  • January is generally a sunny month with an average of 191 hours of sunshine in Tokyo during the whole month.

  • How warm is the water in January?
  • The water temperature averages approximately 19°C (66°F) in Hachijojima this month, so still a bit cool to swim but some enjoy a refreshing dive.

    Interested in more climate information?

    We have much more information about the climate in Japan. Interested in the weather conditions in a specific month? Select the month below.

  • January      
  • February      
  • March      
  • April      
  • May      
  • June      
  • July      
  • August      
  • September      
  • October      
  • November      
  • December      
  • Weather and climate has detailed information for almost all countries in the world. Are you going to Japan? Get detailed historical weather averages for many cities in Japan.

    Not sure yet where to go? We now have a tool which suggests which destination suits your ideal climate conditions. Find out where to go with our weather planner.