December weather forecast
Shimadadai, Japan

December

Weather in December

December, the first month of the winter in Shimadadai, is also a fresh month, with an average temperature fluctuating between 5.8°C (42.4°F) and 11°C (51.8°F).

Temperature

The shift from November to December involves a decrease in the average high-temperature, from a refreshing 16.4°C (61.5°F) to a cool 11°C (51.8°F). In December, Shimadadai experiences an average nighttime temperature of 5.8°C (42.4°F).

Humidity

In Shimadadai, the average relative humidity in December is 65%.

Rainfall

In December, in Shimadadai, the rain falls for 6 days. Throughout December, 9mm (0.35") of precipitation is accumulated. In Shimadadai, during the entire year, the rain falls for 98.7 days and collects up to 190mm (7.48") of precipitation.

Snowfall

March through December are months without snowfall.

Daylight

With an average of 9h and 48min of daylight, December has the shortest days of the year in Shimadadai, Japan.
On the first day of the month, sunrise is at 06:31 and sunset at 16:26. On the last day of December, in Shimadadai, sunrise is at 06:49 and sunset at 16:36 JST.

Sunshine

In December, the average sunshine is 6h.

UV index

In December, the average daily maximum UV index in Shimadadai is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index, 3 in December, converts into the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Stay sun-safe with clothing that is both closely woven and worn loosely.

Frequently asked questions

What are December temperatures in Shimadadai?
The average high-temperature, in December, in Shimadadai, is 11°C (51.8°F), while the average low-temperature is 5.8°C (42.4°F). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in August is estimated at 40°C (104°F).
What is the average humidity in December in Shimadadai?
In December, the average relative humidity in Shimadadai is 65%.
How many days does it rain in December in Shimadadai?
In December, the rain falls for 6 days. Throughout December, 9mm (0.35") of precipitation is accumulated.
When it does not snow in Shimadadai?
March through December are months without snowfall in Shimadadai, Japan.
Does it snow in Shimadadai in December?
In Shimadadai, Japan, in December, it doesn't snow. In January, it regularly snows.
What is the month with the shortest days in Shimadadai?
December has the shortest days of the year in Shimadadai, with an average of 9h and 48min of daylight.
How many hours of daylight does Shimadadai have in December?
In Shimadadai, Japan, the average day length in December is 9h and 47min.
When are sunrise and sunset in December in Shimadadai?
In December, on the first day of the month, sunrise is at 06:31 and sunset at 16:26. On the last day of the month, sunrise is at 06:49 and sunset at 16:36 JST.
How long on average sun shines in December in Shimadadai?
In December, the average sunshine duration in Shimadadai, Japan, is 6h.
How high is the UV index in December in Shimadadai?
In December, the average daily maximum UV index in Shimadadai, Japan, is 3. A UV Index reading of 3 to 5 represents a medium health risk 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 December
Shimadadai, Japan
  • Average high temperature in December: 11°C

The warmest month (with the highest average high temperature) is August (30.9°C).
The month with the lowest average high temperature is January (8.7°C).

  • Average low temperature in December: 5.8°C

The month with the highest average low temperature is August (24.7°C).
The coldest month (with the lowest average low temperature) is January (2.8°C).

Average pressure in December
Shimadadai, Japan
  • Average pressure in December: 1016.1mbar

The month with the highest atmospheric pressure is November (1018mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).

Average wind speed in December
Shimadadai, Japan
  • Average wind speed in December: 12.9km/h

The windiest month (with the highest average wind speed) is April (14.8km/h).
The calmest months (with the lowest average wind speed) are June and November (11.7km/h).

Average humidity in December
Shimadadai, Japan
  • Average humidity in December: 65%

The month with the highest relative humidity is July (80%).
The month with the lowest relative humidity is January (61%).

Average rainfall in December
Shimadadai, Japan
  • Average rainfall in December: 9mm

The wettest month (with the highest rainfall) is October (25mm).
The driest month (with the least rainfall) is January (7mm).

Average rainfall days in December
Shimadadai, Japan
  • Average rainfall days in December: 6 days

The month with the highest number of rainy days is June (10.9 days).
The month with the least rainy days is January (4.8 days).

Average snowfall in December
Shimadadai, Japan
  • Average snowfall in December: 0mm

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 December
Shimadadai, Japan
  • Average snowfall days in December: 0 days

The month with the highest number of snowfall days is February (2.2 days).
The months with the least snowfall days are April, May, June, July, August, September, October, November and December (0 days).

Average daylight in December /
Average sunshine in December
Shimadadai, 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 0min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 5h and 30min).

Average sunshine days in December
Shimadadai, Japan
  • Average sunshine days in December: 22.5 days

The month with the most sunshine days is January (24.3 days).
The month with the least sunshine days is June (16.1 days).

Average UV index in December
Shimadadai, 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
Shimadadai, Japan
  • Average cloud cover in December: 32

The month with the most cloud cover is June (Cloud cover 46).
The month with the least cloud cover is January (Cloud cover 29).

Average visibility in December
Shimadadai, Japan
  • Average visibility in December: 10km

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

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