January weather forecast
Yorii, Japan

January

Weather in January

January, like December, is a frosty winter month in Yorii, Japan, with an average temperature fluctuating between -0.9°C (30.4°F) and 6.4°C (43.5°F).

Temperature

January is the month that records the lowest temperatures, with averages ranging from a high of 6.4°C (43.5°F) to a low of -0.9°C (30.4°F).

Humidity

With an average relative humidity of 62%, January is the least humid month.

Rainfall

In Yorii, in January, during 5.6 rainfall days, 27mm (1.06") of precipitation is typically accumulated. Throughout the year, there are 166.8 rainfall days, and 796mm (31.34") of precipitation is accumulated.

Snowfall

Months with snowfall in Yorii are January through March, November and December. In Yorii, during January, snow falls for 2.6 days and regularly aggregates up to 29mm (1.14") of snow. Throughout the year, in Yorii, there are 7.4 snowfall days, and 112mm (4.41") of snow is accumulated.

Daylight

In January, the average length of the day in Yorii is 10h and 1min.
On the first day of January, sunrise is at 06:53 and sunset at 16:38. On the last day of the month, sunrise is at 06:45 and sunset at 17:07 JST.

Sunshine

The average sunshine in January is 6.8h.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Yorii. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the average person.
Note: In January, the UV index of 2 transforms into the following advice:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.

Frequently asked questions

What is the coldest time of year in Yorii?
The coldest period is January, when temperatures fluctuate between an average high of 6.4°C (43.5°F) and a low of -0.9°C (30.4°F).
How cold does it get in Yorii in January?
Yorii in January has an average high-temperature of 6.4°C (43.5°F) and an average low-temperature of -0.9°C (30.4°F).
What is the least humid month in Yorii?
January is the least humid month in Yorii, Japan, with an average relative humidity of 62%.
What is the average humidity in January in Yorii?
In January, the average relative humidity in Yorii, Japan, is 62%.
How many days does it rain in January in Yorii?
In Yorii, Japan, in January, during 5.6 rainfall days, 27mm (1.06") of precipitation is typically accumulated.
How many days does it snow in January in Yorii?
In Yorii, Japan, during January, snow falls for 2.6 days and regularly aggregates up to 29mm (1.14") of snow.
How many hours of daylight does Yorii have in January?
The average day length in January in Yorii, Japan, is 10h and 1min.
What time are sunrise and sunset in January in Yorii?
On the first day of January in Yorii, sunrise is at 06:53 and sunset at 16:38. On the last day of the month, sunrise is at 06:45 and sunset at 17:07 JST.
How many hours of sunshine does Yorii have in January?
In Yorii, Japan, the average sunshine duration in January is 6.8h.
When is the lowest UV index in Yorii?
The months with the lowest UV index in Yorii are January, February and December, with an average maximum UV index of 2.
How high is the UV index in January in Yorii?
The average daily maximum UV index in January in Yorii is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in January
Yorii, Japan
  • Average high temperature in January: 6.4°C

The warmest month (with the highest average high temperature) is August (30.3°C).
The month with the lowest average high temperature is January (6.4°C).

  • Average low temperature in January: -0.9°C

The month with the highest average low temperature is August (22.4°C).
The coldest month (with the lowest average low temperature) is January (-0.9°C).

Average pressure in January
Yorii, Japan
  • Average pressure in January: 1016.8mbar

The month with the highest atmospheric pressure is November (1018.5mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).

Average wind speed in January
Yorii, Japan
  • Average wind speed in January: 10km/h

The windiest month (with the highest average wind speed) is January (10km/h).
The calmest month (with the lowest average wind speed) is July (6.3km/h).

Average humidity in January
Yorii, Japan
  • Average humidity in January: 62%

The month with the highest relative humidity is July (78%).
The month with the lowest relative humidity is January (62%).

Average rainfall in January
Yorii, Japan
  • Average rainfall in January: 27mm

The wettest month (with the highest rainfall) is October (122mm).
The driest months (with the least rainfall) are February and December (22mm).

Average rainfall days in January
Yorii, Japan
  • Average rainfall days in January: 5.6 days

The month with the highest number of rainy days is July (22.9 days).
The month with the least rainy days is January (5.6 days).

Average snowfall in January
Yorii, Japan
  • Average snowfall in January: 29mm

The month with the highest snowfall is February (58mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in January
Yorii, Japan
  • Average snowfall days in January: 2.6 days

The month with the highest number of snowfall days is February (3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in January /
Average sunshine in January
Yorii, 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 5min

The months with the most sunshine are May and August (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 24min).

Average sunshine days in January
Yorii, Japan
  • Average sunshine days in January: 22.4 days

The month with the most sunshine days is December (22.5 days).
The month with the least sunshine days is July (5.6 days).

Average UV index in January
Yorii, 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, February and December (UV index 2).

Average cloud cover in January
Yorii, Japan
  • Average cloud cover in January: 25

The month with the most cloud cover is June (Cloud cover 46).
The month with the least cloud cover is January (Cloud cover 25).

Average visibility in January
Yorii, 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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