December weather forecast
Obama, Japan

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Weather in December

The first month of the winter, December, is also a frosty month in Obama, Japan, with temperature in the range of an average high of 7.8°C (46°F) and an average low of 3.5°C (38.3°F).

Temperature

December comes with a drop in the average high-temperature, falling from November's refreshing 13.7°C (56.7°F) to a chilly 7.8°C (46°F). Obama records a consistent average nighttime temperature of 3.5°C (38.3°F) in December, slightly lower than the daytime high.

Humidity

In December, the average relative humidity is 81%.

Rainfall

In Obama, in December, during 24.6 rainfall days, 117mm (4.61") of precipitation is typically accumulated. In Obama, during the entire year, the rain falls for 223.2 days and collects up to 1458mm (57.4") of precipitation.

Snowfall

January through March and December are months with snowfall. December is the first month it typically snows in Obama. Throughout December, in the average 7.2 snowfall days, it receives 125mm (4.92") of snow. Throughout the year, in Obama, Japan, there are 36.2 snowfall days, and 630mm (24.8") of snow is accumulated.

Sea temperature

In Obama, Japan, the average seawater temperature in December is 16.3°C (61.3°F).
Note: For most, swimming in 16.3°C (61.3°F) is not a pleasant experience. As the temperature falls from 21°C (69.8°F) to 15°C (59°F), controlling one's breathing becomes more difficult.

Daylight

With an average of 9h and 48min of daylight, December has the shortest days of the year in Obama.
On the first day of December, sunrise is at 06:47 and sunset at 16:44. On the last day of the month, sunrise is at 07:05 and sunset at 16:54 JST.

Sunshine

In December, the average sunshine is 3.5h.

UV index

The month with the lowest UV index in Obama is December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the average person.
Note: During December, 1 as the daily maximum UV index converts into the following advice:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. To guard against the harmful effects of the Sun, minimize exposure during midday. Stay sun-safe with clothing that is both closely woven and worn loosely. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
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Frequently asked questions

What is the temperature in December in Obama?

During December, Obama experiences an average high-temperature of 7.8°C (46°F) and a low-temperature of 3.5°C (38.3°F). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in August is calculated to be 35°C (95°F).

What is the average humidity in December in Obama?

The average relative humidity in December is 81%.

How much does it rain in Obama in December?

In Obama, Japan, during December, the rain falls for 24.6 days and regularly aggregates up to 117mm (4.61") of precipitation.

When does it start to snow in Obama?

December is the first month it typically snows in Obama, Japan. Throughout December, in the average 7.2 snowfall days, it receives 125mm (4.92") of snow.

What is the sea water temperature in December in Obama?

In Obama, Japan, in December, the average water temperature is 16.3°C (61.3°F). For swimming, a surface water temperature of 16.3°C (61.3°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

What is the month with the shortest days in Obama?

With an average of 9h and 48min of daylight, December has the shortest days of the year in Obama, Japan.

What is the average length of the day in December in Obama?

In December, the average day length in Obama is 9h and 49min.

What time are sunrise and sunset in December in Obama?

On the first day of December in Obama, sunrise is at 06:47 and sunset at 16:44. On the last day of the month, sunrise is at 07:05 and sunset at 16:54 JST.

How long on average sun shines in December in Obama?

In Obama, Japan, the average sunshine duration in December is 3.5h.

What is the month with the lowest UV index in Obama?

With an average maximum UV index of 1, December is the month with the lowest UV index in Obama, Japan.

How high is the UV index in December in Obama?

The average daily maximum UV index in December in Obama, Japan, is 1. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Obama, Japan

Average temperature in December - Obama, Japan
  • Average high temperature in December: 7.8°C

The warmest month (with the highest average high temperature) is August (29°C).
The month with the lowest average high temperature is January (5.1°C).

  • Average low temperature in December: 3.5°C

The month with the highest average low temperature is August (22.6°C).
The coldest month (with the lowest average low temperature) is February (0.7°C).

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Average pressure in December
Obama, Japan

Average pressure in December - Obama, Japan
  • Average pressure in December: 1018.9mbar

The month with the highest atmospheric pressure is February (1019.7mbar).
The month with the lowest atmospheric pressure is June (1008.9mbar).

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Average wind speed in December
Obama, Japan

Average wind speed in December - Obama, Japan
  • Average wind speed in December: 13.5km/h

The windiest month (with the highest average wind speed) is January (13.6km/h).
The calmest months (with the lowest average wind speed) are July and August (7.7km/h).

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Average humidity in December
Obama, Japan

Average humidity in December - Obama, Japan
  • Average humidity in December: 81%

The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is May (77%).

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Average rainfall in December
Obama, Japan

Average rainfall in December - Obama, Japan
  • Average rainfall in December: 117mm

The wettest month (with the highest rainfall) is July (216mm).
The driest month (with the least rainfall) is November (78mm).

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Average rainfall days in December
Obama, Japan

Average rainfall days in December - Obama, Japan
  • Average rainfall days in December: 24.6 days

The month with the highest number of rainy days is December (24.6 days).
The month with the least rainy days is May (15.2 days).

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Average snowfall in December
Obama, Japan

Average snowfall in December - Obama, Japan
  • Average snowfall in December: 125mm

The month with the highest snowfall is January (249mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

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Average snowfall days in December
Obama, Japan

Average snowfall days in December - Obama, Japan
  • Average snowfall days in December: 7.2 days

The month with the highest number of snowfall days is January (13 days).
The months with the least snowfall days are May, June, July, August, September, October and November (0 days).

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Average sea temperature in December
Obama, Japan

Average sea temperature in December - Obama, Japan
  • Average sea temperature in December: 16.3°C

The best month for swimming (with the highest average sea temperature) is August (27.8°C).
The coldest month (with the lowest average sea temperature) is March (12°C).

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Average daylight in December /
Average sunshine in December
Obama, Japan

Average daylight in December / Average sunshine in December - Obama, 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: 3h and 3min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).

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Average sunshine days in December
Obama, Japan

Average sunshine days in December - Obama, Japan
  • Average sunshine days in December: 3.7 days

The month with the most sunshine days is May (13.7 days).
The month with the least sunshine days is January (3.2 days).

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Average UV index in December
Obama, Japan

Average UV index in December - Obama, Japan
  • Average UV index in December: 1

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in December
Obama, Japan

Average cloud cover in December - Obama, Japan
  • Average cloud cover in December: 63

The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 36).

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Average visibility in December
Obama, Japan

Average visibility in December - Obama, Japan
  • Average visibility in December: 9km

The months with the highest visibility are February, March, April, May, June, August, September, October, November and December (9km).
The months with the lowest visibility are January and July (8km).

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Obama, Japan

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