Climate Insights for Nagano

The climate in Nagano is temperate. The average annual temperature is 11°C and approximately 2,023 mm of precipitation falls per year. Nagano receives a notable amount of rainfall throughout the year, including during its driest month. Nagano is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, September. The coldest months are January, February, December, when temperatures can drop to -5°C. Nagano experiences heavy snowfall, typically from January through December.The climate in Nagano is temperate. The average annual temperature is 52°F and approximately 79.6 in of precipitation falls per year. Nagano receives a notable amount of rainfall throughout the year, including during its driest month. Nagano is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, September. The coldest months are January, February, December, when temperatures can drop to 23°F. Nagano experiences heavy snowfall, typically from January through December.

Temperatures in Nagano vary considerably across the year, with a 34°C difference between the coldest and warmest months. The warmest month is August, when average highs reach 29°C and the mean temperature sits around 24°C. The coldest month is January, when overnight lows fall to -5°C and the daily average is -2°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows. The sharpest temperature change occurs between September and October, with a 7°C shift in average temperatures.Temperatures in Nagano vary considerably across the year, with a 60°F difference between the coldest and warmest months. The warmest month is August, when average highs reach 83°F and the mean temperature sits around 75°F. The coldest month is January, when overnight lows fall to 23°F and the daily average is 29°F. On average, daily temperatures fluctuate by about 15°F between overnight lows and afternoon highs. The sharpest temperature change occurs between September and October, with a 13°F shift in average temperatures.

Nagano is a very wet location, receiving approximately 2,023 mm of precipitation annually, which averages out to around 169 mm per month. The wettest month is July, averaging 275 mm of rainfall. September and August also tend to see above-average precipitation. The driest month is November, with just 119 mm. That's 157 mm less than July, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Nagano receives heavy snowfall, accumulating around 401cm annually from January through December. The snowiest month is January, with approximately 125cm. Winter travel should account for significant snow cover.Nagano is a very wet location, receiving approximately 79.6 in of precipitation annually, which averages out to around 6.7 in per month. The wettest month is July, averaging 10.8 in of rainfall. September and August also tend to see above-average precipitation. The driest month is November, with just 4.7 in. That's 6.2 in less than July, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Nagano receives heavy snowfall, accumulating around 158in annually from January through December. The snowiest month is January, with approximately 49in. Winter travel should account for significant snow cover.

Nagano is relatively calm, with an average annual wind speed of 5km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is April, averaging 6km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 4km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 2km/h gap between the calmest and windiest months.Nagano is relatively calm, with an average annual wind speed of 3mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is April, averaging 4mph, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 3mph, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 1mph gap between the calmest and windiest months.

The table below shows monthly climate averages for Nagano based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.The table below shows monthly climate averages for Nagano based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Fahrenheit (°F). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in inches (in) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in miles per hour (mph). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.