Nagano
Japan
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Nagano, Japan

January, the same as December, is another cold winter month in Nagano, Japan, with average temperature ranging between max 3.5°C (38.3°F) and min -4.1°C (24.6°F). With an average high-temperature of 3.5°C (38.3°F) and an average low-temperature of -4.1°C (24.6°F), January is the coldest month. Weather in January »
The last month of the winter, February, is also a wintry month in Nagano, Japan, with average temperature ranging between min -3.8°C (25.2°F) and max 4.7°C (40.5°F). In Nagano, the average high-temperature is almost the same as in January - a still cold 4.7°C (40.5°F). Weather in February »

The first month of the spring, March, is a chilly month in Nagano, Japan, with temperature in the range of an average low of -0.8°C (30.6°F) and an average high of 9.5°C (49.1°F). In Nagano, Japan, the average high-temperature marginally rises, from a wintry 4.7°C (40.5°F) in February, to a chilly 9.5°C (49.1°F). Weather in March »

April is a comfortable spring month in Nagano, Japan, with average temperature ranging between min 4.9°C (40.8°F) and max 17.3°C (63.1°F). In Nagano, the average high-temperature increases, from a chilly 9.5°C (49.1°F) in March, to an enjoyable 17.3°C (63.1°F). Weather in April »

May, the last month of the spring, in Nagano, is a pleasant month, with average temperature ranging between max 22.5°C (72.5°F) and min 10.5°C (50.9°F). In Nagano, Japan, the average high-temperature in May rises, from a comfortable 17.3°C (63.1°F) in April, to an agreeable 22.5°C (72.5°F). Weather in May »

June, the first month of the summer, in Nagano, is a moderately hot month, with average temperature ranging between max 25.7°C (78.3°F) and min 15.8°C (60.4°F). In Nagano, the average high-temperature in June slightly increases, from an agreeable 22.5°C (72.5°F) in May, to a moderately hot 25.7°C (78.3°F). Weather in June »

July, the same as June, is a moderately hot summer month in Nagano, Japan, with average temperature varying between 20°C (68°F) and 29.1°C (84.4°F). In July, the average high-temperature slightly increases, from a moderately hot 25.7°C (78.3°F) in June, to a still warm 29.1°C (84.4°F). Weather in July »

August, the last month of the summer, in Nagano, is a tropical month, with average temperature ranging between min 21.3°C (70.3°F) and max 31°C (87.8°F). August is the warmest month, with an average high-temperature of 31°C (87.8°F) and an average low-temperature of 21.3°C (70.3°F). In August, the average heat index is estimated at a torrid 38.2°C (100.8°F). Weather in August »

September, the first month of the autumn, in Nagano, is also a moderately hot month, with temperature in the range of an average low of 16.9°C (62.4°F) and an average high of 25.6°C (78.1°F). In September, the average high-temperature decreases, from a tropical 31°C (87.8°F) in August, to a moderately hot 25.6°C (78.1°F). Weather in September »

October, like September, in Nagano, Japan, is another enjoyable autumn month, with average temperature varying between 9.7°C (49.5°F) and 19.2°C (66.6°F). In Nagano, the average high-temperature drops, from a warm 25.6°C (78.1°F) in September, to a comfortable 19.2°C (66.6°F). Weather in October »

November, the last month of the autumn, in Nagano, is also a moderate month, with average temperature varying between 13°C (55.4°F) and 3.1°C (37.6°F). In Nagano, the average high-temperature drops, from an enjoyable 19.2°C (66.6°F) in October, to a mild 13°C (55.4°F). Weather in November »

December, the first month of the winter, in Nagano, is still a chilly month, with average temperature fluctuating between -1.6°C (29.1°F) and 6.8°C (44.2°F). In December, the average high-temperature decreases, from a moderate 13°C (55.4°F) in November, to a frosty 6.8°C (44.2°F). Weather in December »

What is the coldest month in Nagano?

January is the coldest month, with an average high-temperature of 3.5°C (38.3°F) and an average low-temperature of -4.1°C (24.6°F).

What is the most humid month in Nagano?

January is the most humid month in Nagano, Japan, with an average relative humidity of 78%.

How many days does it rain in Nagano?

Throughout the year, there are 129.8 rainfall days, and 932.7mm (36.7") of precipitation is accumulated.

When does it snow in Nagano?

Months with snowfall in Nagano, Japan, are January through April, November and December.

How much does it snow in Nagano?

Throughout the year, in Nagano, there are 63 snowfall days, and 2570mm (101.2") of snow is accumulated.

What is the snowiest month in Nagano?

The month with the most snowfall is January when snow falls for 22.9 days and typically aggregates up to 980mm (38.6") of snow.

What is the month with the least sunshine in Nagano?

January has the least sunshine of the year in Nagano, with an average of 4.1h of sunshine.

What is the least humid month in Nagano?

April is the least humid month in Nagano, Japan, with an average relative humidity of 61%.

When it does not snow in Nagano?

In Nagano snow does not fall in May through October.

What month has the most sunshine in Nagano?

The month with the most sunshine is May, with an average of 6.7h of sunshine.

When are the longest days in Nagano?

With an average of 14.6h of daylight, June has the longest days of the year in Nagano, Japan.

What is the wettest month in Nagano?

The month with the most rainfall is July when the rain falls for 13.1 days and typically aggregates up to 134.4mm (5.3") of precipitation.

What is the warmest month in Nagano?

With an average high-temperature of 31°C (87.8°F) and an average low-temperature of 21.3°C (70.3°F), August is the warmest month.

What is the driest month in Nagano?

The month with the least rainfall in Nagano, Japan, is November when the rain falls for 8.6 days and typically collects 44.3mm (1.7") of precipitation.

What is the month with the shortest days in Nagano?

The month with the shortest days in Nagano is December, with an average of 9.7h of daylight.
Average rainfall - Nagano, Japan

The wettest month (with the highest rainfall) is July (134.4mm).
The driest month (with the lowest rainfall) is November (44.3mm).

Average rainfall days - Nagano, Japan

The month with the highest number of rainy days is July (13.1 days).
The month with the lowest number of rainy days is November (8.6 days).

Average snowfall - Nagano, Japan

The month with the highest snowfall is January (980mm).
Months with the lowest snowfall are May, June, July, August, September and October (0mm).

Average snowfall days - Nagano, Japan

The month with the highest number of snowfall days is January (22.9 days).
Months with the lowest number of snowfall days are May, June, July, August, September and October (0 days).

Average daylight / Average sunshine - Nagano, Japan