Monthly weather forecast and climate
Karuizawa, Japan

Weather in January

January, the same as December, is another cold winter month in Karuizawa, Japan, with average temperature ranging between max 1.9°C (35.4°F) and min -9.5°C (14.9°F). With an average high-temperature of 1.9°C (35.4°F) and an average low-temperature of -9.5°C (14.9°F), January is the coldest month. Weather in January »

Weather in February

February, the last month of the winter, in Karuizawa, is another cold month, with average temperature fluctuating between -9°C (15.8°F) and 2.3°C (36.1°F). In February, the average high-temperature is essentially the same as in January - a still wintry 2.3°C (36.1°F). Weather in February »

Weather in March

The first month of the spring, March, is a frosty month in Karuizawa, Japan, with average temperature varying between 6.1°C (43°F) and -6°C (21.2°F). In March, the average high-temperature slightly increases, from a wintry 2.3°C (36.1°F) in February, to a frosty 6.1°C (43°F). Weather in March »

Weather in April

April is a moderate spring month in Karuizawa, Japan, with average temperature ranging between max 13.2°C (55.8°F) and min -0.1°C (31.8°F). In Karuizawa, the average high-temperature in April rises, from a frosty 6.1°C (43°F) in March, to a mild 13.2°C (55.8°F). Weather in April »

Weather in May

The last month of the spring, May, is a comfortable month in Karuizawa, Japan, with average temperature ranging between max 18.2°C (64.8°F) and min 5°C (41°F). In Karuizawa, the average high-temperature increases, from a mild 13.2°C (55.8°F) in April, to an enjoyable 18.2°C (64.8°F). Weather in May »

Weather in June

June, the first month of the summer, in Karuizawa, is an agreeable month, with temperature in the range of an average low of 10.9°C (51.6°F) and an average high of 20.6°C (69.1°F). In Karuizawa, the average high-temperature is almost the same as in May - an agreeable 20.6°C (69.1°F). Weather in June »

Weather in July

July in Karuizawa, Japan, is a warm summer month, with average temperature varying between 15.3°C (59.5°F) and 24°C (75.2°F). In Karuizawa, the average high-temperature slightly increases, from a pleasant 20.6°C (69.1°F) in June, to a moderately hot 24°C (75.2°F). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Karuizawa, Japan, with average temperature ranging between min 16.2°C (61.2°F) and max 25.5°C (77.9°F). With an average high-temperature of 25.5°C (77.9°F) and an average low-temperature of 16.2°C (61.2°F), August is the warmest month. Weather in August »

Weather in September

September, the first month of the autumn, in Karuizawa, is still a pleasant month, with temperature in the range of an average low of 12.2°C (54°F) and an average high of 20.5°C (68.9°F). In Karuizawa, the average high-temperature decreases, from a warm 25.5°C (77.9°F) in August, to a pleasant 20.5°C (68.9°F). Weather in September »

Weather in October

October, like September, is another mild autumn month in Karuizawa, Japan, with average temperature varying between 4.4°C (39.9°F) and 15.2°C (59.4°F). In October, the average high-temperature drops, from a pleasant 20.5°C (68.9°F) in September, to a mild 15.2°C (59.4°F). Weather in October »

Weather in November

November, the last month of the autumn, in Karuizawa, is also a fresh month, with average temperature varying between -1.2°C (29.8°F) and 10.5°C (50.9°F). In November, the average high-temperature slightly decreases, from a moderate 15.2°C (59.4°F) in October, to a fresh 10.5°C (50.9°F). Weather in November »

Weather in December

December, the first month of the winter, in Karuizawa, is still a cold month, with average temperature varying between -6.4°C (20.5°F) and 4.8°C (40.6°F). In December, the average high-temperature drops, from a fresh 10.5°C (50.9°F) in November, to a cold 4.8°C (40.6°F). Weather in December »
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FAQ

What is the coldest month in Karuizawa?

With an average high-temperature of 1.9°C (35.4°F) and an average low-temperature of -9.5°C (14.9°F), January is the coldest month.

How much does it rain in Karuizawa?

During the entire year, Karuizawa aggregates up to 1211.3mm (47.69") of precipitation.

When does it snow in Karuizawa?

January through April, October through December are months with snowfall.

How much does it snow in Karuizawa?

Throughout the year, 1370mm (53.94") of snow is accumulated.

What is the snowiest month in Karuizawa?

February is the month with the most snowfall, with 430mm (16.93") of accumulated snow.

What is the least humid month in Karuizawa?

The least humid month is April, with an average relative humidity of 72%.

When it does not snow in Karuizawa?

In Karuizawa, Japan, snow does not fall in May through September.

What month has the most sunshine in Karuizawa?

The month with the most sunshine is May, with an average of 6.2h of sunshine.

What is the rainiest month in Karuizawa?

June is the month with the most rainfall, with 187.4mm (7.38") of accumulated precipitation.

When are the longest days in Karuizawa?

The month with the longest days is June, with an average of 14.6h of daylight.

What is the warmest month in Karuizawa?

August is the warmest month in Karuizawa, with an average high-temperature of 25.5°C (77.9°F) and an average low-temperature of 16.2°C (61.2°F).

What is the most humid month in Karuizawa?

With an average relative humidity of 88%, September is the most humid month.

What is the month with the least sunshine in Karuizawa?

The month with the least sunshine in Karuizawa, Japan, is September, with an average of 3.6h of sunshine.

What is the driest month in Karuizawa?

The month with the least rainfall is December when 23.3mm (0.92") of precipitation is typically aggregated.

What is the month with the shortest days in Karuizawa?

December has the shortest days of the year in Karuizawa, with an average of 9.7h of daylight.

Average temperature
Karuizawa, Japan

Average temperature - Karuizawa, Japan

The warmest month (with the highest average high temperature) is August (25.5°C).
The month with the lowest average high temperature is January (1.9°C).

The month with the highest average low temperature is August (16.2°C).
The coldest month (with the lowest average low temperature) is January (-9.5°C).

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Average humidity
Karuizawa, Japan

Average humidity - Karuizawa, Japan

The month with the highest relative humidity is September (88%).
The month with the lowest relative humidity is April (72%).

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Average rainfall
Karuizawa, Japan

Average rainfall - Karuizawa, Japan

The wettest month (with the highest rainfall) is June (187.4mm).
The driest month (with the least rainfall) is December (23.3mm).

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Average snowfall
Karuizawa, Japan

Average snowfall - Karuizawa, Japan

The month with the highest snowfall is February (430mm).
Months with the least snowfall are May, June, July, August and September (0mm).

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Average daylight / Average sunshine
Karuizawa, Japan

Average daylight / Average sunshine - Karuizawa, Japan

The month with the longest days is June (Average daylight: 14.6h).
The month with the shortest days is December (Average daylight: 9.7h).

The month with the most sunshine is May (Average sunshine: 6.2h).
The month with the least sunshine is September (Average sunshine: 3.6h).

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