December weather forecast
Nagareyama, Japan

December

Weather in December

December, the first month of the winter in Nagareyama, is still a cool month, with an average temperature fluctuating between 4.8°C (40.6°F) and 10.6°C (51.1°F).

Temperature

December's arrival correlates with a reduction in the average high-temperature, down from a refreshing 16°C (60.8°F) in November to a fresh 10.6°C (51.1°F). The low-temperature average for Nagareyama during December stands at an icy 4.8°C (40.6°F).

Humidity

In Nagareyama, Japan, the average relative humidity in December is 64%.

Rainfall

In Nagareyama, in December, during 8.8 rainfall days, 13mm (0.51") of precipitation is typically accumulated. In Nagareyama, Japan, during the entire year, the rain falls for 136.1 days and collects up to 307mm (12.09") of precipitation.

Snowfall

March through December are months without snowfall in Nagareyama.

Daylight

December has the shortest days of the year, with an average of 9h and 48min of daylight.
On the first day of December, sunrise is at 06:32 and sunset at 16:26. On the last day of the month, sunrise is at 06:50 and sunset at 16:36 JST.

Sunshine

In December, the average sunshine in Nagareyama is 6.2h.

UV index

In Nagareyama, the average daily maximum UV index in December is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: The daily maximum UV index of 3 in December interprets into the following advice:
Make use of precautions - Suggestions to resist sunburn are communicated. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. To cut down UV radiation exposure by about half, sport a wide-brim hat. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.

Frequently asked questions

What are December temperatures in Nagareyama?
In Nagareyama, in December, the average high-temperature is 10.6°C (51.1°F), and the average low-temperature is 4.8°C (40.6°F). In September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is appraised at 30°C (86°F).
What is the average humidity in December in Nagareyama?
The average relative humidity in December in Nagareyama, Japan, is 64%.
How much does it rain in Nagareyama in December?
In Nagareyama, Japan, during December, the rain falls for 8.8 days and regularly aggregates up to 13mm (0.51") of precipitation.
When it does not snow in Nagareyama?
March through December are months without snowfall.
Does it snow in Nagareyama in December?
In Nagareyama, in December, it doesn't snow. In January, it regularly snows.
What is the month with the shortest days in Nagareyama?
The month with the shortest days in Nagareyama is December, with an average of 9h and 48min of daylight.
What is the average length of the day in December in Nagareyama?
In Nagareyama, the average day length in December is 9h and 47min.
When are sunrise and sunset in December in Nagareyama?
In December, on the first day of the month, sunrise is at 06:32 and sunset at 16:26. On the last day of the month, in Nagareyama, Japan, sunrise is at 06:50 and sunset at 16:36 JST.
How long on average sun shines in December in Nagareyama?
The average sunshine duration in December in Nagareyama, Japan, is 6.2h.
What is the UV index intensity in December in Nagareyama?
In December, the average daily maximum UV index in Nagareyama is 3. A UV Index of 3 to 5 symbolizes a moderate 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 December - Nagareyama, Japan
Average temperature in December
Nagareyama, Japan
  • Average high temperature in December: 10.6°C

The warmest month (with the highest average high temperature) is August (31.5°C).
The month with the lowest average high temperature is January (8.6°C).

  • Average low temperature in December: 4.8°C

The month with the highest average low temperature is August (24.5°C).
The coldest month (with the lowest average low temperature) is January (2°C).

Average pressure in December - Nagareyama, Japan
Average pressure in December
Nagareyama, Japan
  • Average pressure in December: 1016.2mbar

The month with the highest atmospheric pressure is November (1018.2mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).

Average wind speed in December - Nagareyama, Japan
Average wind speed in December
Nagareyama, Japan
  • Average wind speed in December: 11.4km/h

The windiest month (with the highest average wind speed) is April (13.3km/h).
The calmest month (with the lowest average wind speed) is November (10.1km/h).

Average humidity in December - Nagareyama, Japan
Average humidity in December
Nagareyama, Japan
  • Average humidity in December: 64%

The month with the highest relative humidity is July (78%).
The month with the lowest relative humidity is January (60%).

Average rainfall in December - Nagareyama, Japan
Average rainfall in December
Nagareyama, Japan
  • Average rainfall in December: 13mm

The wettest month (with the highest rainfall) is October (40mm).
The driest month (with the least rainfall) is January (12mm).

Average rainfall days in December - Nagareyama, Japan
Average rainfall days in December
Nagareyama, Japan
  • Average rainfall days in December: 8.8 days

The months with the highest number of rainy days are June and October (14.2 days).
The month with the least rainy days is January (6.4 days).

Average snowfall in December - Nagareyama, Japan
Average snowfall in December
Nagareyama, Japan
  • Average snowfall in December: 0mm

The month with the highest snowfall is February (14mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).

Average snowfall days in December - Nagareyama, Japan
Average snowfall days in December
Nagareyama, Japan
  • Average snowfall days in December: 0.1 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, October and November (0 days).

Average daylight in December / Average sunshine in December - Nagareyama, Japan
Average daylight in December /
Average sunshine in December
Nagareyama, Japan
  • Average daylight in December: 9h and 5min

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 December: 6h and 1min

The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 42min).

Average sunshine days in December - Nagareyama, Japan
Average sunshine days in December
Nagareyama, Japan
  • Average sunshine days in December: 20 days

The month with the most sunshine days is January (23 days).
The month with the least sunshine days is June (13.3 days).

Average UV index in December - Nagareyama, Japan
Average UV index in December
Nagareyama, Japan
  • Average UV index in December: 3

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

Average cloud cover in December - Nagareyama, Japan
Average cloud cover in December
Nagareyama, Japan
  • Average cloud cover in December: 31

The month with the most cloud cover is June (Cloud cover 47).
The month with the least cloud cover is January (Cloud cover 28).

Average visibility in December - Nagareyama, Japan
Average visibility in December
Nagareyama, Japan
  • Average visibility in December: 10km

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

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