January weather forecast
Usui, Japan

January

Weather in January

January, the same as December, in Usui, Japan, is another chilly winter month, with an average temperature fluctuating between 3.7°C (38.7°F) and 9.1°C (48.4°F).

Temperature

In Usui, the lowest average temperatures are observed in January, with a high of 9.1°C (48.4°F) and a low of 3.7°C (38.7°F).

Humidity

January is the least humid month in Usui, with an average relative humidity of 61%.

Rainfall

January is the month with the least rainfall in Usui. Rain falls for 6.3 days and accumulates 9mm (0.35") of precipitation.

Snowfall

January and February are months with snowfall in Usui. January is the first month it typically snows. Throughout January, in the average 0.9 snowfall days, it receives 1mm (0.04") of snow. In Usui, during the entire year, snow falls for 2.4 days and aggregates up to 5mm (0.2") of snow.

Daylight

In Usui, Japan, the average length of the day in January is 10h and 3min.
On the first day of the month, sunrise is at 06:48 and sunset at 16:35. On the last day of January, sunrise is at 06:40 and sunset at 17:04 JST.

Sunshine

In January, the average sunshine is 6.2h.

UV index

The months with the lowest UV index are January through March and December, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: An average UV index of 3 in January transforms into this advice:
Be vigilant - A duty to shield skin and eyes from injury exists. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.

Frequently asked questions

What is the coldest month in Usui?
January stands out as Usui's coldest month, with temperatures ranging between an average high of 9.1°C (48.4°F) and a low of 3.7°C (38.7°F).
What is the usual temperature for Usui in January?
During January, Usui experiences an average high-temperature of 9.1°C (48.4°F) and a low-temperature of 3.7°C (38.7°F).
What is the least humid month in Usui?
The least humid month in Usui, Japan, is January, with an average relative humidity of 61%.
What is the average humidity in January in Usui?
The average relative humidity in January is 61%.
What is the driest month in Usui?
The month with the least rainfall in Usui, Japan, is January, when the rain falls for 6.3 days and typically collects 9mm (0.35") of precipitation.
How many days does it rain in January in Usui?
In Usui, Japan, in January, it is raining for 6.3 days, with typically 9mm (0.35") of accumulated precipitation.
When does it start snowing in Usui?
January is the first month it typically snows in Usui. Throughout January, in the average 0.9 snowfall days, it receives 1mm (0.04") of snow.
What is the average length of the day in January in Usui?
In Usui, Japan, the average day length in January is 10h and 3min.
When are sunrise and sunset in January in Usui?
In January, on the first day of the month, sunrise is at 06:48 and sunset at 16:35. On the last day of the month, sunrise is at 06:40 and sunset at 17:04 JST.
How many hours of sunshine does Usui have in January?
In January, the average sunshine duration in Usui, Japan, is 6.2h.
When is the lowest UV index in Usui?
January through March and December, with an average maximum UV index of 3, are months with the lowest UV index in Usui.
What is the UV index reading in January in Usui?
In Usui, the average daily maximum UV index in January is 3. A UV Index estimate of 3 to 5 represents a medium hazard to health from exposure to Sun's UV rays.
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
Usui, Japan
  • Average high temperature in January: 9.1°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 (9.1°C).

  • Average low temperature in January: 3.7°C

The month with the highest average low temperature is August (24.8°C).
The coldest month (with the lowest average low temperature) is January (3.7°C).

Average pressure in January
Usui, Japan
  • Average pressure in January: 1015.8mbar

The month with the highest atmospheric pressure is November (1017.9mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).

Average wind speed in January
Usui, Japan
  • Average wind speed in January: 15.4km/h

The windiest month (with the highest average wind speed) is March (16.5km/h).
The calmest month (with the lowest average wind speed) is June (12.7km/h).

Average humidity in January
Usui, Japan
  • Average humidity in January: 61%

The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is January (61%).

Average rainfall in January
Usui, Japan
  • Average rainfall in January: 9mm

The wettest month (with the highest rainfall) is October (29mm).
The driest month (with the least rainfall) is January (9mm).

Average rainfall days in January
Usui, Japan
  • Average rainfall days in January: 6.3 days

The month with the highest number of rainy days is October (11.4 days).
The month with the least rainy days is January (6.3 days).

Average snowfall in January
Usui, Japan
  • Average snowfall in January: 1mm

The month with the highest snowfall is February (4mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).

Average snowfall days in January
Usui, Japan
  • Average snowfall days in January: 0.9 days

The month with the highest number of snowfall days is February (1.4 days).
The months with the least snowfall days are April, May, June, July, August, September, October, November and December (0 days).

Average daylight in January /
Average sunshine in January
Usui, Japan
  • Average daylight in January: 10h and 1min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in January: 6h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 5h and 24min).

Average sunshine days in January
Usui, Japan
  • Average sunshine days in January: 22.3 days

The month with the most sunshine days is January (22.3 days).
The month with the least sunshine days is October (15.6 days).

Average UV index in January
Usui, Japan
  • Average UV index in January: 3

The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January, February, March and December (UV index 3).

Average cloud cover in January
Usui, Japan
  • Average cloud cover in January: 30

The month with the most cloud cover is June (Cloud cover 46).
The month with the least cloud cover is January (Cloud cover 30).

Average visibility in January
Usui, Japan
  • Average visibility in January: 10km

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

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