January weather forecast
Oyama, Japan

January

Weather in January

January, like December, is a frosty winter month in Oyama, Japan, with an average temperature fluctuating between 7.1°C (44.8°F) and 0.2°C (32.4°F).

Temperature

With average high temperatures of 7.1°C (44.8°F) and lows of 0.2°C (32.4°F), January is the coldest month.

Humidity

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

Rainfall

In January, in Oyama, the rain falls for 3.9 days. Throughout January, 6mm (0.24") of precipitation is accumulated. Throughout the year, in Oyama, there are 99.4 rainfall days, and 187mm (7.36") of precipitation is accumulated.

Snowfall

January through March are months with snowfall in Oyama. January is the first month it typically snows in Oyama. Throughout January, in the average 0.8 snowfall days, it receives 1mm (0.04") of snow. Throughout the year, in Oyama, there are 3.2 snowfall days, and 6mm (0.24") of snow is accumulated.

Daylight

In Oyama, the average length of the day in January is 10h and 1min.
On the first day of January in Oyama, sunrise is at 06:51 and sunset at 16:35. On the last day of the month, sunrise is at 06:43 and sunset at 17:04 JST.

Sunshine

In Oyama, 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 Oyama. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the average person.
Note: The maximum daily UV index of 2 during January translates into the following directions:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.

Frequently asked questions

What month is the coldest in Oyama?
January is the coldest month in Oyama, with an average high-temperature of 7.1°C (44.8°F) and an average low-temperature of 0.2°C (32.4°F).
What is the usual temperature for Oyama in January?
In January, in Oyama, the average high-temperature is 7.1°C (44.8°F), and the average low-temperature is 0.2°C (32.4°F).
What is the least humid month in Oyama?
With an average relative humidity of 61%, January is the least humid month in Oyama.
What is the average humidity in January in Oyama?
In January, the average relative humidity in Oyama is 61%.
How much does it rain in Oyama in January?
In January, the rain falls for 3.9 days. Throughout January, 6mm (0.24") of precipitation is accumulated.
When does it start snowing in Oyama?
January is the first month it typically snows in Oyama. Throughout January, in the average 0.8 snowfall days, it receives 1mm (0.04") of snow.
What is the average length of the day in January in Oyama?
The average day length in January is 10h and 1min.
When are sunrise and sunset in January in Oyama?
In January, on the first day of the month, sunrise is at 06:51 and sunset at 16:35. On the last day of the month, sunrise is at 06:43 and sunset at 17:04 JST.
How long on average sun shines in January in Oyama?
In January, the average sunshine duration in Oyama is 6.8h.
What is the month with the lowest UV index in Oyama?
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index.
How high is the UV index in January in Oyama?
In January, the average daily maximum UV index in Oyama, Japan, is 2. A UV Index reading of 2, and below, represents a low health risk from unsafe 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
Oyama, Japan
  • Average high temperature in January: 7.1°C

The warmest month (with the highest average high temperature) is August (31.2°C).
The month with the lowest average high temperature is January (7.1°C).

  • Average low temperature in January: 0.2°C

The month with the highest average low temperature is August (23.3°C).
The coldest month (with the lowest average low temperature) is January (0.2°C).

Average pressure in January
Oyama, Japan
  • Average pressure in January: 1016.5mbar

The month with the highest atmospheric pressure is November (1018.5mbar).
The month with the lowest atmospheric pressure is June (1009.3mbar).

Average wind speed in January
Oyama, Japan
  • Average wind speed in January: 9.1km/h

The windiest month (with the highest average wind speed) is April (9.5km/h).
The calmest month (with the lowest average wind speed) is November (7km/h).

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

The month with the highest relative humidity is July (78%).
The month with the lowest relative humidity is January (61%).

Average rainfall in January
Oyama, Japan
  • Average rainfall in January: 6mm

The wettest month (with the highest rainfall) is July (35mm).
The driest month (with the least rainfall) is December (3mm).

Average rainfall days in January
Oyama, Japan
  • Average rainfall days in January: 3.9 days

The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is December (3.3 days).

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

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

Average snowfall days in January
Oyama, Japan
  • Average snowfall days in January: 0.8 days

The month with the highest number of snowfall days is February (1.9 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average daylight in January /
Average sunshine in January
Oyama, 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 42min).

  • Average sunshine in January: 6h and 5min

The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 18min).

Average sunshine days in January
Oyama, Japan
  • Average sunshine days in January: 26.1 days

The month with the most sunshine days is December (27.5 days).
The month with the least sunshine days is July (7.5 days).

Average UV index in January
Oyama, 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
Oyama, 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
Oyama, 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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