Normal weather for Japan in August
It's hot in August in Japan with an average temperature of 30°C. Temperatures this month range from a low of 27°C to a high of 32°C. At night, you can expect temperatures between 20°C and 23°C.
In August, there is an average of 148 mm of precipitation, spread over 17 days. The wind speed is around 3 Bft, mostly coming from the South.
The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Japan in August |
New York | ||
|---|---|---|---|
 Average Temperature |
30°C | 30°C | |
 High Temp |
32°C | 31°C | |
| Low Temp |
27°C | 28°C | |
 Total Precipitation |
148 mm | 79 mm | |
| Rainy Days |
17 days | 13 days | |
The climate in Japan is based on weather data from Tokyo. Other places, like Kyōto, Osaka or Hokkaido, might have different weather. You can check out all destinations in Japan to get the full picture of the climate.
Start of August
The month of August starts in Japan with hot temps, averaging around 31°C during the day and nights around 23°C. A few showers might pop up early in the month, but overall, it’ll stay mostly sunny and dry.
Mid August
By mid-August, daytime temps drop to around 30°C, with nights around 22°C. There’s a high chance of precipitation during this time.
End of August
By the end of August, the average daytime temperature in Japan is around 29°C, while nighttime temps are about 21°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.
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Is August a good time to visit Japan?
Looking for sun? August isn’t a good month to be in Japan. The temperature is nice, but there’s too much chance of rain.
The typhoon season in Japan runs from June to November.
Temperature records for Japan in August
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Daily Temperature in August in Japan
This chart shows the average daily high and low temperatures in August for Japan, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in August in Japan
The chart below shows the average daily precipitation in August for Japan, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for August, you can expect about 17 days of precipitation in Japan.
Daily UV Index in August in Japan
This chart shows the average daily UV index in August in Japan, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in August in Japan Over the Years
This chart shows the average temperature in August in Japan, measured in degrees Celsius, over the past few years.
Total Precipitation in August in Japan Over the Years
This chart shows the average precipitation in August in Japan, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily Climate in August for Japan
Click on any day in August to get detailed info about the usual weather on that day in Japan. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in August in Japan
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Average Weather in Japan by Month
Click on a month below to see detailed weather info for Japan. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
