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Japan temperatures in January

January in Japan has maximum daytime temperatures ranging from very low in Kamikawa with -6°C to high temperatures in Ishigaki Island with 22°C. Nighttime temperatures generally drop to 19°C in Ishigaki Island and -14°C in Kamikawa. January is a winter month. On average, it is one of the coldest months of the year.

What is the temperature of the different cities in Japan in January?

To get a sense of January's typical temperatures in the key spots of Japan, explore the map below. Click on a point for an in-depth look.

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Legend very warm warm pleasant moderate cold very cold
Very warm means maximum temperatures above 30°C. Warm: 22°C to 30°C. Pleasant: 18°C to 22°C Moderate: 12°C to 18°C. Cold: 2°C to 12°C. Very cold: lower than 2°C

  • 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 and a minimum nighttime temperature of around 19°C.

  • What is the coldest city in January in Japan?
  • For the month of January, Kamikawa is the most temperate city in Japan based on our records. With highs averaging -6°C and nighttime temperatures dipping to around -14°C.

  • How much sun does Japan get in January?
  • Most cities enjoy a balanced amount of sunshine, with around 189 hours of sunlight anticipated in Tokyo. This ensures the days are neither too dim nor excessively sunny.

  • What is the water's temperature in January?
  • The water temperature averages approximately 19°C in Hachijojima this month, so still a bit cool to swim but some enjoy a chilly dive.

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