Japan temperatures in January

Japan in January has maximum daytime temperatures ranging from very low in Asahikawa with -6°C (21°F) to pleasant temperatures in Ishigaki Island with 20°C (68°F). Nighttime temperatures generally drop to 18°C (64°F) in Ishigaki Island and -15°C (5°F) in Asahikawa. January is a winter month in Japan. On average, it is one of the coldest months of the year.

What is the temperature of 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.

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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 20°C (68°F) and a minimum nighttime temperature of around 18°C (64°F).

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

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