Temperatures in Japan in August

Japan in August has maximum daytime temperatures ranging from low in Mount Fuji with 10°C (49°F) to very high temperatures in Okayama with 34°C (92°F). Nighttime temperatures generally drop to 25°C (76°F) in Okayama and 4°C (39°F) in Mount Fuji. August is a summer month in Japan. It is one of the warmest months of the year.

What is the temperature for the different cities in Japan in August

Find the average daytime temperatures in August for the most popular destinations in Japan on the map below. Click on a destination dot for more detailed information.

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 August in Japan?
  • Okayama tops the warmest city list in our database with average maximum daytime temperatures around 34°C (92°F) and minimum nighttime temperature around 25°C (76°F).

  • What is the coldest city in August in Japan?
  • The coldest city in August in Japan is Mount Fuji when we check our database. The maximum daytime temperatures are around 10°C (49°F) and minimum nighttime temperatures fall around 4°C (39°F).

  • How much sun does Japan get in August?
  • August is generally a moderate sunny month with an average of 177 hours of sunshine in Tokyo during the whole month.

  • How warm is the water in August?
  • The water temperature averages approximately 27°C (81°F) in Nagasaki this month, an ideal temperature for swimming and cooling off.

    Interested in more climate information?

    We have much more information about the climate in Japan. Interested in the weather conditions in a specific month? Select the month below.

  • January      
  • February      
  • March      
  • April      
  • May      
  • June      
  • July      
  • August      
  • September      
  • October      
  • November      
  • December      
  • Weather and climate has detailed information for almost all countries in the world. Are you going to Japan? Get detailed historical weather averages for many cities in Japan.

    Not sure yet where to go? We now have a tool which suggests which destination suits your ideal climate conditions. Find out where to go with our weather planner.