Normal weather for Nagano in August
It's hot in August in Nagano with an average temperature of 31°C. Temperatures this month range from a low of 28°C to a high of 34°C. At night, you can expect temperatures between 20°C and 24°C.
In August, there is an average of 125 mm of precipitation, spread over 16 days. The wind speed is around 3 Bft, mostly coming from the South.
Nagano in August |
London | ||
|---|---|---|---|
 Average Temperature |
31°C | 22°C | |
 High Temp |
34°C | 24°C | |
| Low Temp |
28°C | 19°C | |
 Total Precipitation |
125 mm | 60 mm | |
| Rainy Days |
16 days | 10 days | |
Start of August
The month of August starts in Nagano with hot temperatures, averaging around 33°C during the day and nights close to 24°C. A few showers might pop up in the first days of the month, but the weather remains mostly sunny and dry. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
Mid-August
By mid-August, the average daytime temperature drops to around 31°C, with nights close to 23°C. The chance of precipitation is high during this period.
Temperatures vary between day and night, so it’s smart to wear layers. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal for the day. In the evening and morning, a T-shirt, light trousers or skirt, and a light jacket are recommended.
End of August
By the end of August, the average daytime temperature in Nagano will be around 31°C, with nights close to 22°C. A shower might show up, but overall the weather will be dry and sunny.
As it gets cooler in the evening, it’s best to wear layers. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal for the day. In the evening and morning, a T-shirt, light trousers or skirt, and a light jacket are recommended.
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UV index
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.
Is August a good time to visit Nagano?
After some sun? Then August isn’t the best time to be in Nagano. The temperature is pleasant, but there’s too much chance of rain this month.
The typhoon season in Nagano runs from June to November.
Temperature records for Nagano in August
With 38°C, Nagano hit the highest temperature in the last 10 years in August 2018. The lowest daytime temperature in this month was 21°C in 2021. The extreme night temperatures ranged from a low of 13°C to a high of 28°C.
Check out the climate of Nagano for all months and discover the best travel time
Curious about the climate in other parts of Japan? Check out the weather and climate in places like Tokyo, Kyōto, Osaka, or have a look at other destinations in Japan.
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Daily Temperature in August in Nagano
This chart shows the average daily temperatures, both day and night, for each day in August in Nagano, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in August in Nagano
The chart below shows the average daily precipitation in August for Nagano, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown 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 rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for August, you can expect around 16 days of rain in Nagano.
Daily UV Index in August in Nagano
This chart shows the average daily UV index in August in Nagano, 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 Nagano Over the Years
This chart shows the average temperature in August in Nagano, measured in degrees Celsius, over the past years.
Total Precipitation in August in Nagano Over the Years
This chart shows the average precipitation in August in Nagano, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in August for Nagano
Click on a specific day in August for detailed info on the typical weather on that day in Nagano. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in August in Nagano
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Average Weather in Nagano by Month
Click on a month below to see detailed weather info for Nagano. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
