Japan
9 to 30°C
temperature
2912 hours
sunshine per day
266 mm
rain
242 days
dry
120 days
rain
3 days
snow

Climate of Japan

Japan has a oceanic climate. There is rainfall during all months of the year. The average annual temperature for Japan is 37° degrees and there is about 106 inch of rain in a year. It is dry for 217 days a year with an average humidity of 70% and an UV-index of 4.

Climate averages for the whole year

  • Day: the average daily temperature during the day is between 9°C and 30°C
  • Night:the average nighttime temperature is between 3°C and 25°C
  • Rain: it rains 120 days and there is a total of approximately 266 mm rainfall
  • Snow: it snows an average of 3 days per year
  • Sun hours: throughout the year there are 2912 sun hours
Maximum temperature: between 9°C and 30°C
Warmest month: 30°C in August
Coldest month: 9°C in January
Night temperature: between 3°C and 25°C
Dry days: 242 days
Days with rain: 120 days
Days with snow: 3 days
Total rain sum: 266 mm
Hours of sunshine: 2912 hours

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Temperature graph

This graph shows the average maximum temperature (red) and minimum temperature (blue) for Japan.

Precipitation graph

This graph shows the average amount of rainfall per month for Japan.

Climate table of Japan

In this climate table you can see at a glance what the average weather per month is for Japan. The data has been collected over a 30-year period, from which an average per month has been derived. From year to year the differences may be larger or smaller, but with this climate table you have a good idea of what the weather for Japan might be like in a given month.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Day temp. (°F) 48 49 55 64 73 76 85 87 80 71 61 52
Night temp. (°F) 37 38 43 51 60 66 74 76 70 61 51 42
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Precipitation (inch) 6 8 13 8 7 10 7 7 13 11 8 6
Days with rain 6 9 14 11 9 12 9 8 12 12 10 8
Days with snow 1 2 - - - - - - - - - -
Dry days 24 17 17 19 22 18 22 23 18 19 20 23
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Sun hours per day 7 6 7 9 10 9 10 10 8 7 6 6
Wind force (Bft) 3 3 3 3 3 2 3 3 3 3 3 3
UV-index 3 3 3 5 5 6 7 6 5 4 3 3

Best time to visit Japan

To go to Japan, the best time to visit is April through October. In this period you have a warm temperature and almost no precipitation. In Japan, August is the warmest month with 87°F and the most cold month is 48°F in January.

Climate of Japan by month

What is the average climate in a given month for Japan? Click on a month to see all monthly averages for sunshine, maximum and minimum temperatures, percent chance of rain per day, snowfall and number of rainy days.

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