December weather forecast and climate
Jena, Romania

Weather in December

December, the first month of the winter, in Jena, is still a cold month, with average temperature varying between -0.8°C (30.6°F) and 4.6°C (40.3°F).

Temperature

In December, the average high-temperature decreases, from a cool 12.2°C (54°F) in November, to a wintry 4.6°C (40.3°F). In Jena, the average low-temperature is -0.8°C (30.6°F).

Humidity

In December, the average relative humidity is 82%.

Rainfall

In December, the rain falls for 10.1 days. Throughout December, 35mm (1.38") of precipitation is accumulated. In Jena, Romania, during the entire year, the rain falls for 139.4 days and collects up to 438mm (17.24") of precipitation.

Snowfall

January through March, November and December are months with snowfall. The month with the most snowfall in Jena, Romania, is December when snow falls for 6.7 days and typically aggregates up to 75mm (2.95") of snow.

Daylight

December has the shortest days of the year, with an average of 8.8h of daylight.

Sunshine

In Jena, Romania, the average sunshine in December is 5.2h.

UV index

Months with the lowest UV index in Jena are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to the UV radiation for average individuals.
Note: The daily maximum UV index of 2 interpret into the following advice:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in December in Jena?

In December, in Jena, the average high-temperature is 4.6°C (40.3°F), and the average low-temperature is -0.8°C (30.6°F).

What is the average humidity in December in Jena?

In Jena, Romania, the average relative humidity in December is 82%.

How many days does it rain in December in Jena?

In Jena, Romania, during December, the rain falls for 10.1 days and regularly aggregates up to 35mm (1.38") of precipitation.

How many days does it snow in December in Jena?

In December, in Jena, Romania, it is snowing for 6.7 days. Throughout December, 75mm (2.95") of snow is accumulated.

When does it snow the most in Jena?

December is the month with the most snowfall. Snow falls for 6.7 days and accumulates 75mm (2.95") of snow.

What is the month with the shortest days in Jena?

December has the shortest days of the year in Jena, Romania, with an average of 8.8h of daylight.

How many hours of daylight does Jena have in December?

The average length of the day in December in Jena is 8.8h.

How long on average sun shines in December in Jena?

In Jena, the average sunshine in December is 5.2h.

What are the months with the lowest UV index in Jena?

Months with the lowest UV index in Jena, Romania, are January, February, November and December, with an average maximum UV index of 2.

What is the UV index intensity in December in Jena?

In December, the average daily maximum UV index in Jena, Romania, is 2. A UV Index reading of 2, and below, represents a low health risk from the exposure to the Sun's UV radiation.

Average temperature in December
Jena, Romania

Average temperature in December - Jena, Romania
  • Average high temperature in December: 4.6°C

The warmest month (with the highest average high temperature) is August (29.5°C).
The month with the lowest average high temperature is January (2.9°C).

  • Average low temperature in December: -0.8°C

The month with the highest average low temperature is August (15.3°C).
The coldest month (with the lowest average low temperature) is January (-2.7°C).

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Average pressure in December
Jena, Romania

Average pressure in December - Jena, Romania
  • Average pressure in December: 1020.7mbar

The month with the highest atmospheric pressure is December (1020.7mbar).
The month with the lowest atmospheric pressure is June (1013.5mbar).

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Average wind speed in December
Jena, Romania

Average wind speed in December - Jena, Romania
  • Average wind speed in December: 7.6km/h

The windiest month (with the highest average wind speed) is March (8.7km/h).
The calmest month (with the lowest average wind speed) is August (6.7km/h).

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Average humidity in December
Jena, Romania

Average humidity in December - Jena, Romania
  • Average humidity in December: 82%

The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (58%).

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Average rainfall in December
Jena, Romania

Average rainfall in December - Jena, Romania
  • Average rainfall in December: 35mm

The wettest month (with the highest rainfall) is June (60mm).
The driest month (with the least rainfall) is September (22mm).

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Average rainfall days in December
Jena, Romania

Average rainfall days in December - Jena, Romania
  • Average rainfall days in December: 10.1 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is August (8.3 days).

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Average snowfall in December
Jena, Romania

Average snowfall in December - Jena, Romania
  • Average snowfall in December: 75mm

The month with the highest snowfall is December (75mm).
Months with the least snowfall are April, May, June, July, August, September and October (0mm).

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Average snowfall days in December
Jena, Romania

Average snowfall days in December - Jena, Romania
  • Average snowfall days in December: 6.7 days

The month with the highest number of snowfall days is January (7.9 days).
Months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Jena, Romania

Average daylight in December / Average sunshine in December - Jena, Romania
  • Average daylight in December: 8.8h

The month with the longest days is June (Average daylight: 15.6h).
The month with the shortest days is December (Average daylight: 8.8h).

  • Average sunshine in December: 5.2h

The month with the most sunshine is August (Average sunshine: 11.5h).
The month with the least sunshine is January (Average sunshine: 5.1h).

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Average sunshine days in December
Jena, Romania

Average sunshine days in December - Jena, Romania
  • Average sunshine days in December: 15.5 days

The month with the most sunshine days is August (20.3 days).
The month with the least sunshine days is May (10.8 days).

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Average UV index in December
Jena, Romania

Average UV index in December - Jena, Romania
  • Average UV index in December: 2

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in December
Jena, Romania

Average cloud cover in December - Jena, Romania
  • Average cloud cover in December: 46

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 17).

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Average visibility in December
Jena, Romania

Average visibility in December - Jena, Romania
  • Average visibility in December: 8km

Months with the highest visibility are July, August and September (10km).
Months with the lowest visibility are January, February and December (8km).

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