January weather forecast
Shiraoka, Japan

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Weather in January

January, like December, is another chilly winter month in Shiraoka, Japan, with temperature in the range of an average low of 1°C (33.8°F) and an average high of 8°C (46.4°F).

Temperature

Shiraoka's coldest temperatures are experienced in January, with average high temperatures of 8°C (46.4°F) and lows of 1°C (33.8°F).

Humidity

January is the least humid month, with an average relative humidity of 59%.

Rainfall

In Shiraoka, in January, during 5.8 rainfall days, 31mm (1.22") of precipitation is typically accumulated. Throughout the year, in Shiraoka, there are 161.6 rainfall days, and 782mm (30.79") of precipitation is accumulated.

Snowfall

Months with snowfall are January through March, November and December. In Shiraoka, in January, during 1.2 snowfall days, 15mm (0.59") of snow is typically accumulated. In Shiraoka, Japan, during the entire year, snow falls for 4.2 days and aggregates up to 66mm (2.6") of snow.

Daylight

In Shiraoka, the average length of the day in January is 10h and 2min.
On the first day of January in Shiraoka, sunrise is at 06:51 and sunset at 16:37. On the last day of the month, sunrise is at 06:43 and sunset at 17:05 JST.

Sunshine

In January, the average sunshine in Shiraoka is 6.6h.

UV index

The months with the lowest UV index in Shiraoka, Japan, are January and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: In January, the average maximum UV index of 2 translates into the following recommendations:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
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Frequently asked questions

What time of the year is the coldest in Shiraoka?

January, with its average high-temperature of 8°C (46.4°F) and an average low-temperature of 1°C (33.8°F), holds the record as the coldest month.

What are the temperatures in Shiraoka in January?

In January, in Shiraoka, the average high-temperature is 8°C (46.4°F), and the average low-temperature is 1°C (33.8°F).

What is the least humid month in Shiraoka?

With an average relative humidity of 59%, January is the least humid month.

What is the average humidity in January in Shiraoka?

In Shiraoka, the average relative humidity in January is 59%.

How many days does it rain in January in Shiraoka?

In Shiraoka, Japan, in January, during 5.8 rainfall days, 31mm (1.22") of precipitation is typically accumulated.

How much does it snow in Shiraoka in January?

In Shiraoka, Japan, in January, snow falls for 1.2 days, with typically accumulated 15mm (0.59") of snow.

How many hours of daylight does Shiraoka have in January?

The average day length in January is 10h and 2min.

When are sunrise and sunset in January in Shiraoka?

In January, on the first day of the month, sunrise is at 06:51 and sunset at 16:37. On the last day of the month, in Shiraoka, Japan, sunrise is at 06:43 and sunset at 17:05 JST.

How many hours of sunshine does Shiraoka have in January?

In Shiraoka, Japan, the average sunshine duration in January is 6.6h.

When is the lowest UV index in Shiraoka?

The months with the lowest UV index are January and December, with an average maximum UV index of 2.

How high is the UV index in January in Shiraoka?

In January, the average daily maximum UV index in Shiraoka is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover

Average temperature in January
Shiraoka, Japan

Average temperature in January - Shiraoka, Japan
  • Average high temperature in January: 8°C

The warmest month (with the highest average high temperature) is August (32.1°C).
The month with the lowest average high temperature is January (8°C).

  • Average low temperature in January: 1°C

The month with the highest average low temperature is August (24.3°C).
The coldest month (with the lowest average low temperature) is January (1°C).

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Average pressure in January
Shiraoka, Japan

Average pressure in January - Shiraoka, Japan
  • Average pressure in January: 1016.5mbar

The month with the highest atmospheric pressure is November (1018.4mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).

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Average wind speed in January
Shiraoka, Japan

Average wind speed in January - Shiraoka, Japan
  • Average wind speed in January: 10.8km/h

The windiest month (with the highest average wind speed) is April (10.9km/h).
The calmest month (with the lowest average wind speed) is November (8.2km/h).

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Average humidity in January
Shiraoka, Japan

Average humidity in January - Shiraoka, Japan
  • Average humidity in January: 59%

The months with the highest relative humidity are June and July (74%).
The month with the lowest relative humidity is January (59%).

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Average rainfall in January
Shiraoka, Japan

Average rainfall in January - Shiraoka, Japan
  • Average rainfall in January: 31mm

The wettest month (with the highest rainfall) is October (107mm).
The driest month (with the least rainfall) is December (26mm).

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Average rainfall days in January
Shiraoka, Japan

Average rainfall days in January - Shiraoka, Japan
  • Average rainfall days in January: 5.8 days

The month with the highest number of rainy days is July (20.8 days).
The month with the least rainy days is January (5.8 days).

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Average snowfall in January
Shiraoka, Japan

Average snowfall in January - Shiraoka, Japan
  • Average snowfall in January: 15mm

The month with the highest snowfall is February (39mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

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Average snowfall days in January
Shiraoka, Japan

Average snowfall days in January - Shiraoka, Japan
  • Average snowfall days in January: 1.2 days

The month with the highest number of snowfall days is February (2.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in January /
Average sunshine in January
Shiraoka, Japan

Average daylight in January / Average sunshine in January - Shiraoka, Japan
  • Average daylight in January: 10h and 0min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in January: 6h and 4min

The month with the most sunshine is August (Average sunshine: 9h and 42min).
The months with the least sunshine are February and November (Average sunshine: 6h and 6min).

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Average sunshine days in January
Shiraoka, Japan

Average sunshine days in January - Shiraoka, Japan
  • Average sunshine days in January: 24.4 days

The month with the most sunshine days is January (24.4 days).
The month with the least sunshine days is July (7.3 days).

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Average UV index in January
Shiraoka, Japan

Average UV index in January - Shiraoka, Japan
  • Average UV index in January: 2

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).

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Average cloud cover in January
Shiraoka, Japan

Average cloud cover in January - Shiraoka, Japan
  • Average cloud cover in January: 26

The month with the most cloud cover is June (Cloud cover 47).
The month with the least cloud cover is January (Cloud cover 26).

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Average visibility in January
Shiraoka, Japan

Average visibility in January - Shiraoka, Japan
  • Average visibility in January: 10km

The months with the highest visibility are January, February, March, November and December (10km).
The months with the lowest visibility are April, May, June, July, August, September and October (9km).

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Shiraoka, Japan

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