December weather forecast and climate
Costieni, Romania

Weather in December

December, the first month of the winter, in Costieni, is also a wintry month, with average temperature varying between 5°C (41°F) and -0.9°C (30.4°F).

Temperature

In Costieni, the average high-temperature in December drops, from a fresh 10.7°C (51.3°F) in November, to a wintry 5°C (41°F). In December, the average low-temperature is -0.9°C (30.4°F).

Humidity

In Costieni, the average relative humidity in December is 76%.

Rainfall

In Costieni, during December, the rain falls for 7.5 days and regularly aggregates up to 32mm (1.26") of precipitation. Throughout the year, in Costieni, there are 112.5 rainfall days, and 365mm (14.37") of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall. In Costieni, during December, snow falls for 4.3 days and regularly aggregates up to 54mm (2.13") of snow. In Costieni, during the entire year, snow falls for 18.9 days, and aggregates up to 219mm (8.62") of snow.

Daylight

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

Sunshine

In Costieni, Romania, the average sunshine in December is 5.7h.

UV index

Months with the lowest UV index 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 unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: In December, the average maximum UV index of 2 translate into the following recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. 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 Costieni?

In December, in Costieni, Romania, the average high-temperature is 5°C (41°F), and the average low-temperature is -0.9°C (30.4°F).

What is the average humidity in December in Costieni?

The average relative humidity in December in Costieni is 76%.

How much does it rain in Costieni in December?

In Costieni, Romania, in December, during 7.5 rainfall days, 32mm (1.26") of precipitation is typically accumulated.

How many days does it snow in December in Costieni?

In Costieni, Romania, in December, snow falls for 4.3 days, with typically accumulated 54mm (2.13") of snow.

What is the month with the shortest days in Costieni?

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

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

In Costieni, the average length of the day in December is 8.8h.

How long on average sun shines in December in Costieni?

The average sunshine in December in Costieni is 5.7h.

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

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the UV index intensity in December in Costieni?

The average daily maximum UV index in December in Costieni is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health from unprotected exposure to the UV radiation.

Average temperature in December
Costieni, Romania

Average temperature in December - Costieni, Romania
  • Average high temperature in December: 5°C

The warmest month (with the highest average high temperature) is August (29.9°C).
The month with the lowest average high temperature is January (2.1°C).

  • Average low temperature in December: -0.9°C

The month with the highest average low temperature is August (17.8°C).
The coldest month (with the lowest average low temperature) is January (-3.8°C).

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Average pressure in December
Costieni, Romania

Average pressure in December - Costieni, Romania
  • Average pressure in December: 1020.1mbar

The month with the highest atmospheric pressure is December (1020.1mbar).
Months with the lowest atmospheric pressure are June and July (1013.1mbar).

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Average wind speed in December
Costieni, Romania

Average wind speed in December - Costieni, Romania
  • Average wind speed in December: 10.9km/h

The windiest month (with the highest average wind speed) is March (13.1km/h).
The calmest month (with the lowest average wind speed) is November (10.5km/h).

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Average humidity in December
Costieni, Romania

Average humidity in December - Costieni, Romania
  • Average humidity in December: 76%

The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is August (49%).

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Average rainfall in December
Costieni, Romania

Average rainfall in December - Costieni, Romania
  • Average rainfall in December: 32mm

The wettest month (with the highest rainfall) is June (53mm).
The driest month (with the least rainfall) is September (16mm).

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Average rainfall days in December
Costieni, Romania

Average rainfall days in December - Costieni, Romania
  • Average rainfall days in December: 7.5 days

The month with the highest number of rainy days is May (15 days).
The month with the least rainy days is August (6.2 days).

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Average snowfall in December
Costieni, Romania

Average snowfall in December - Costieni, Romania
  • Average snowfall in December: 54mm

The month with the highest snowfall is January (65mm).
Months with the least snowfall are May, June, July, August, September and October (0mm).

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Average snowfall days in December
Costieni, Romania

Average snowfall days in December - Costieni, Romania
  • Average snowfall days in December: 4.3 days

The month with the highest number of snowfall days is January (6 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in December / Average sunshine in December - Costieni, 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: 5.7h

The month with the most sunshine is August (Average sunshine: 11.6h).
The month with the least sunshine is February (Average sunshine: 5h).

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Average sunshine days in December
Costieni, Romania

Average sunshine days in December - Costieni, Romania
  • Average sunshine days in December: 20 days

The month with the most sunshine days is August (23.3 days).
The month with the least sunshine days is May (14.1 days).

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Average UV index in December
Costieni, Romania

Average UV index in December - Costieni, 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
Costieni, Romania

Average cloud cover in December - Costieni, Romania
  • Average cloud cover in December: 40

The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 18).

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Average visibility in December
Costieni, Romania

Average visibility in December - Costieni, Romania
  • Average visibility in December: 9km

Months with the highest visibility are March, April, May, June, July, August, September and October (10km).
The month with the lowest visibility is January (8km).

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