December weather forecast
Minatomachi, Japan

December

Weather in December

December, the first month of the winter in Minatomachi, is still a cool month, with an average temperature fluctuating between 10°C (50°F) and 4.7°C (40.5°F).

Temperature

A change in temperatures is noted as November gives way to December, with average highs reducing from a comfortable 16°C (60.8°F) to a cool 10°C (50°F). Throughout December, Minatomachi witnesses a nighttime temperature average of 4.7°C (40.5°F).

Humidity

The average relative humidity in December is 74%.

Rainfall

In Minatomachi, in December, it is raining for 14.3 days, with typically 26mm (1.02") of accumulated precipitation. Throughout the year, there are 149 rainfall days, and 436mm (17.17") of precipitation is accumulated.

Snowfall

Months with snowfall are January through March and December. December is the first month it typically snows. Throughout December, in the average 3.1 snowfall days, it receives 18mm (0.71") of snow. Throughout the year, there are 14.9 snowfall days, and 82mm (3.23") of snow is accumulated.

Daylight

With an average of 9h and 54min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 06:46 and sunset at 16:47. On the last day of the month, sunrise is at 07:04 and sunset at 16:57 JST.

Sunshine

In December, the average sunshine is 5.1h.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The daily high UV index of 2 during December translates into the following recommendations:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.

Frequently asked questions

What is the usual temperature for Minatomachi in December?
The high-temperature, in December, in Minatomachi, is 10°C (50°F), while the low-temperature averages to 4.7°C (40.5°F). In September, the average heat index (a.k.a. 'real feel', 'feels like'), which combines relative humidity and air temperature, is estimated at 30°C (86°F).
What is the average humidity in December?
The average relative humidity in December is 74%.
How many days does it rain in December?
In Minatomachi, during December, the rain falls for 14.3 days and regularly aggregates up to 26mm (1.02") of precipitation.
When does it start to snow?
December is the first month it typically snows. Throughout December, in the average 3.1 snowfall days, it receives 18mm (0.71") of snow.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 9h and 54min of daylight.
What is the average length of the day in December?
In December, the average day length is 9h and 53min.
When are sunrise and sunset in December?
On the first day of December, sunrise is at 06:46 and sunset at 16:47. On the last day of the month, sunrise is at 07:04 and sunset at 16:57 JST.
How many hours of sunshine does Minatomachi have in December?
In Minatomachi, Japan, the average sunshine duration in December is 5.1h.
When is the lowest UV index?
The months with the lowest UV index are January and December, with an average maximum UV index of 2.
What is the UV index intensity in December?
In Minatomachi, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes 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 December - Minatomachi, Japan
Average temperature in December
Minatomachi, Japan
  • Average high temperature in December: 10°C

The warmest month (with the highest average high temperature) is August (31.6°C).
The month with the lowest average high temperature is January (7.6°C).

  • Average low temperature in December: 4.7°C

The month with the highest average low temperature is August (24.4°C).
The coldest month (with the lowest average low temperature) is January (2.2°C).

Average pressure in December - Minatomachi, Japan
Average pressure in December
Minatomachi, Japan
  • Average pressure in December: 1019.3mbar

The month with the highest atmospheric pressure is February (1019.7mbar).
The month with the lowest atmospheric pressure is June (1008.8mbar).

Average wind speed in December - Minatomachi, Japan
Average wind speed in December
Minatomachi, Japan
  • Average wind speed in December: 10.3km/h

The windiest month (with the highest average wind speed) is January (10.6km/h).
The calmest month (with the lowest average wind speed) is June (7.8km/h).

Average humidity in December - Minatomachi, Japan
Average humidity in December
Minatomachi, Japan
  • Average humidity in December: 74%

The month with the highest relative humidity is July (77%).
The month with the lowest relative humidity is May (69%).

Average rainfall in December - Minatomachi, Japan
Average rainfall in December
Minatomachi, Japan
  • Average rainfall in December: 26mm

The wettest month (with the highest rainfall) is July (79mm).
The driest month (with the least rainfall) is November (20mm).

Average rainfall days in December - Minatomachi, Japan
Average rainfall days in December
Minatomachi, Japan
  • Average rainfall days in December: 14.3 days

The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is May (8.7 days).

Average snowfall in December - Minatomachi, Japan
Average snowfall in December
Minatomachi, Japan
  • Average snowfall in December: 18mm

The month with the highest snowfall is January (35mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

Average snowfall days in December - Minatomachi, Japan
Average snowfall days in December
Minatomachi, Japan
  • Average snowfall days in December: 3.1 days

The month with the highest number of snowfall days is January (6 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 - Minatomachi, Japan
Average daylight in December /
Average sunshine in December
Minatomachi, Japan
  • Average daylight in December: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in December: 5h and 1min

The month with the most sunshine is August (Average sunshine: 11h and 0min).
The months with the least sunshine are January and February (Average sunshine: 4h and 48min).

Average sunshine days in December - Minatomachi, Japan
Average sunshine days in December
Minatomachi, Japan
  • Average sunshine days in December: 11.1 days

The month with the most sunshine days is May (20 days).
The month with the least sunshine days is January (10.8 days).

Average UV index in December - Minatomachi, Japan
Average UV index in December
Minatomachi, Japan
  • Average UV index in December: 2

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

Average cloud cover in December - Minatomachi, Japan
Average cloud cover in December
Minatomachi, Japan
  • Average cloud cover in December: 43

The months with the most cloud cover are January and February (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 30).

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

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

englishespañol中文
Share