Temperatures in May
It's warm in May in Nagano with an average temperature of 24°C. Temperatures this month range from a low of 20°C to a high of 27°C. At night, you can expect temperatures between 8°C and 14°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Nagano in May. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of May
The month of May starts in Nagano with warm temperatures, averaging around 23°C during the day and nights close to 10°C. A few showers might pop up in the first days of the month, but the weather remains mostly sunny and dry.
Mid-May
By mid-May, the average daytime temperature rises to around 25°C, with nights close to 13°C. There might be a few showers during this period, but plenty of dry days with sunshine too.
End of May
By the end of May, the average daytime temperature in Nagano will be around 26°C, with nights close to 14°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.
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Precipitation in May
In May, there is an average of 74 mm of precipitation, spread over 8 days. The wind speed is around 4 Bft, mostly coming from the South.
The average precipitation chance is 27% per day this month. Though it seems pretty low, the weather’s variable. Some days have higher and others lower precipitation chances, which lowers the average.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in May for Nagano. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Nagano in May |
London | ||
|---|---|---|---|
 Average Temperature |
24°C | 18°C | |
 High Temp |
27°C | 21°C | |
| Low Temp |
20°C | 15°C | |
 Total Precipitation |
74 mm | 46 mm | |
| Rainy Days |
8 days | 8 days | |
April
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 May a good time to visit Nagano?
Want nice weather? Then May is a great time to be in Nagano. You’ll have pleasant temperatures and not too much rain this month.
The typhoon season in Nagano runs from June to November.
Temperature records for Nagano in May
With 34°C, Nagano hit the highest temperature in the last 10 years in May 2019. The lowest daytime temperature in this month was 11°C in 2022. The extreme night temperatures ranged from a low of -1°C to a high of 21°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 May in Nagano
This chart shows the average daily temperatures, both day and night, for each day in May 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 May in Nagano
The chart below shows the average daily precipitation in May 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 May, you can expect around 8 days of rain in Nagano.
Daily UV Index in May in Nagano
This chart shows the average daily UV index in May 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 May in Nagano Over the Years
This chart shows the average temperature in May in Nagano, measured in degrees Celsius, over the past years.
Total Precipitation in May in Nagano Over the Years
This chart shows the average precipitation in May 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 May for Nagano
Click on a specific day in May 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 May 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.
