December weather forecastCastelu, Romania

December

Weather in December

The first month of the winter, December, is also a frosty month in Castelu, Romania, with an average temperature varying between 6°C (42.8°F) and 0.8°C (33.4°F).

Temperature

In the transition to December, Castelu observes a drop in the average high-temperature, moving from a cool 12.5°C (54.5°F) in November to a chilly 6°C (42.8°F). Castelu's nighttime temperature in December drops to an average of 0.8°C (33.4°F).

Humidity

In Castelu, the average relative humidity in December is 79%.

Rainfall

In December, in Castelu, the rain falls for 9.2 days. Throughout December, 26mm (1.02") of precipitation is accumulated. In Castelu, during the entire year, the rain falls for 97.4 days and collects up to 248mm (9.76") of precipitation.

Snowfall

Months with snowfall are January through March, November and December. In Castelu, during December, snow falls for 2.3 days and regularly aggregates up to 16mm (0.63") of snow. In Castelu, during the entire year, snow falls for 13.6 days and aggregates up to 76mm (2.99") of snow.

Daylight

The month with the shortest days in Castelu, Romania, is December, with an average of 8h and 54min of daylight.
On the first day of December in Castelu, sunrise is at 07:22 and sunset at 16:29. On the last day of the month, sunrise is at 07:42 and sunset at 16:37 EET.

Sunshine

The average sunshine in December is 5.3h.

UV index

The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for average individuals.
Note: A typical high UV index of 2 in December suggests the following recommendations:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.

Frequently asked questions

An average high-temperature, in December, in Castelu, is 6°C (42.8°F) and the average low-temperature is 0.8°C (33.4°F). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in August is calculated to be 32°C (89.6°F).

In Castelu, the average relative humidity in December is 79%.

In Castelu, during December, the rain falls for 9.2 days and regularly aggregates up to 26mm (1.02") of precipitation.

In Castelu, Romania, in December, snow falls for 2.3 days, with typically accumulated 16mm (0.63") of snow.

The month with the shortest days is December, with an average of 8h and 54min of daylight.

In Castelu, the average day length in December is 8h and 56min.

In December, on the first day of the month, sunrise is at 07:22 and sunset at 16:29. On the last day of the month, in Castelu, Romania, sunrise is at 07:42 and sunset at 16:37 EET.

The average sunshine duration in December in Castelu, Romania, is 5.3h.

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

In Castelu, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability 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
Castelu, Romania

  • Average high temperature in December: 6°C

The warmest month (with the highest average high temperature) is August (30.3°C).
The month with the lowest average high temperature is January (3.3°C).

  • Average low temperature in December: 0.8°C

The month with the highest average low temperature is August (18.8°C).
The coldest month (with the lowest average low temperature) is January (-1.8°C).

Average pressure in December
Castelu, Romania

  • Average pressure in December: 1019.8mbar

The month with the highest atmospheric pressure is December (1019.8mbar).
The month with the lowest atmospheric pressure is July (1012.3mbar).

Average wind speed in December
Castelu, Romania

  • Average wind speed in December: 15.9km/h

The windiest month (with the highest average wind speed) is February (17km/h).
The calmest month (with the lowest average wind speed) is July (11.7km/h).

Average humidity in December
Castelu, Romania

  • Average humidity in December: 79%

The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (53%).

Average rainfall in December
Castelu, Romania

  • Average rainfall in December: 26mm

The wettest month (with the highest rainfall) is June (29mm).
The driest month (with the least rainfall) is August (9mm).

Average rainfall days in December
Castelu, Romania

  • Average rainfall days in December: 9.2 days

The month with the highest number of rainy days is May (10.6 days).
The month with the least rainy days is August (3.3 days).

Average snowfall in December
Castelu, Romania

  • Average snowfall in December: 16mm

The month with the highest snowfall is January (25mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in December
Castelu, Romania

  • Average snowfall days in December: 2.3 days

The month with the highest number of snowfall days is January (4.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

  • Average daylight in December: 8h and 54min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in December: 5h and 18min

The month with the most sunshine is August (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days in December
Castelu, Romania

  • Average sunshine days in December: 18.9 days

The month with the most sunshine days is August (27 days).
The month with the least sunshine days is February (16.3 days).

Average UV index in December
Castelu, Romania

  • Average UV index in December: 2

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in December
Castelu, Romania

  • Average cloud cover in December: 44

The months with the most cloud cover are January and February (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 14).

Average visibility in December
Castelu, Romania

  • Average visibility in December: 9km

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