ClimateForecastDecemberJanuary >>

Tokyo Climate by Month

Tokyo is Japan's capital and the world's most populous metropolis. It lies in the humid subtropical climate zone with hot humid summers and generally mild winters with cool spells. Annual rainfall averages nearly 1615 mm, with a wetter summer and a drier winter. Snowfall is sporadic, but does occur almost annually.

Average day and night temperature

In Tokyo, temperatures differ significantly between summer and winter months. Average daytime temperatures range from a very warm 32°C in August, the warmest time of the year, to a chilly 10°C during cooler months like January. At night, temperatures typically average around 2°C during these months.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

Tokyo experiences significant rain/snowfall throughout the year, averaging 1528 mm of precipitation annually. Significant seasonal changes in precipitation occur throughout the year. During the wetter season, October receives heavy rainfall, averaging 211 mm of precipitation, recorded across 17 rainy days. In contrast, the drier season, December brings less rainfall, with 62 mm over 9 rainy days.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

While the amount of sunshine in Tokyo varies throughout the year, all seasons offer their own charm. Enjoy up to 6.3 hours of daily sun in January, and experience slightly darker atmosphere in June, with about 4.1 hours of daily sunlight.

Monthly hours of sunshine

Daily hours of sunshine

The best time of year to visit Tokyo in Japan

During the months of May and October you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • When is summer in Tokyo?
    The hottest season / summer takes place in June, July, August and September.
  • Which months have the greatest rainfall in Tokyo?
    Most rainfall (rainy season) is seen in June, July, September and October.
  • Which is the warmest month in Tokyo?
    August has an average maximum temperature of 32°C and is the warmest month of the year.
  • Which is the coldest month in Tokyo?
    The coldest month is January with an average maximum temperature of 10°C.
  • Which is the wettest month in Tokyo?
    October tops the wettest month list with 211 mm of rainfall.
  • Which is the driest month in Tokyo?
    December is the driest month with 62 mm of precipitation.
  • Which is the sunniest month in Tokyo?
    January is the sunniest month with an average of 189 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

    Forecast for Tokyo

    Sat   Dec 14
    12°C | 4°C
    NW 14 km/h
    almost clear and no rain

    almost clear and no rain

    Sun   Dec 15
    11°C | 3°C
    SW 7 km/h
    clear and no rain

    clear and no rain

    Mon   Dec 16
    12°C | 4°C
    N 7 km/h
    clear and no rain

    clear and no rain