Japan precipitation in January

In Japan in January precipitation ranges from low in Karuizawa with 19mm (0.8 inches) of snow/rainfall to heavy in Amami with 183mm (7.2 inches) of rainfall. January is a winter month in Japan.

Where and how much does it rain in Japan in January?

Find the average total precipitation 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 heavy rainfall high moderate low almost none
Heavy rainfall has been defined as more than 160 mm (6.3") precipitation. High: 90mm (3.5") to 160mm (6.3"). Moderate: 30mm (1.2") to 90mm (3.5". Low: 5mm (0.2") to 30mm (1.2").

  • How much does it rain in Japan in January?
  • In general in January rainfall is moderate in Tokyo. By moderate you can think of between 30mm (1.2") and 90mm (3.5") of rain. This means regular wet days, but also regular dry days throughout the month.

  • What is the wettest city in January in Japan?
  • According to our data the wettest location is Amami with an average precipitation of 183mm (7.2 inches).

  • What is the driest city in January in Japan?
  • The driest place is Karuizawa with an average precipitation of 19mm (0.8 inches) according to our data.

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