Sibiu, Romania weather in December: average temperature & climate

Historical temperature average in December

In Sibiu, Romania

36°F

highs

23°F

lows

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General weather summary

Really cold with a gentle breeze

Feels like

23%

Chance of rain

0.085 in

Amount

10.4 mph

Wind speed

90%

Humidity

8.8 hrs

Daylight length

7:55 AM

Sunrise

4:40 PM

Sunset

42%

Cloud cover

Jacket

What to wear

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What is the average temperature in December

The average temperature in Sibiu in December for a typical day ranges from a high of 36°F (2°C) to a low of 23°F (-5°C). Some would describe it as really cold with a gentle breeze.

For comparison, the hottest month in Sibiu, August, has days with highs of 80°F (27°C) and lows of 58°F (14°C). The coldest month, January has days with highs of 33°F (1°C) and lows of 19°F (-7°C). This graph shows how an average day looks like in Sibiu in December based on historical data.

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Highs and lows in Sibiu in Dec

How much does it rain or snow in December

In Sibiu in December, there's a 23% chance of rain or snow on an average day. And on the average day it rains or snows, we get 0.37 in (9.3 mm) of precipitation. In more common terms of how much that is, some would describe it as flurries.

The wettest month in Sibiu is May where a typical day has a 43% chance of precipitation and gets 0.10 inches (2.6 mm) of precipitation, while the dryest month in Sibiu is August where a typical day has a 16% chance of precipitation and gets 0.08 inches (2.0 mm) of precipitation. These graphs show the probability of it raining/snowing in December and the amount of rainfall.

Chance of rain or snow on an average Sibiu day by month

Average precipitation by hour of day

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How cloudy is Sibiu in December

The average amount of time that the sky is clear or sunny (partly cloudy or less) in Sibiu during December is 10.0 hours (42% of the day). For comparison, the month with the most clear, sunny days in Sibiu is August with an average of 17.0 hours per day while February has the shortest amount of cloud-free hours with only 9.0 hours per day. This graph shows the average amount of sunshine in Sibiu in December based on historical data.

Monthly clear skies percent of time in Sibiu

When is sunrise and sunset in December

The average day in Sibiu during December has 8.8 hours of daylight, with sunrise at 7:55 AM and sunset at 4:40 PM.

The day with the longest amount of daylight in Sibiu is June 19th with 15.7 hours while December 20th has the shortest amount of daylight with only 8.7 hours.

This graph shows the average amount of daylight in Sibiu in December based on historical data.

Average hours of daylight in Sibiu by month

How humid is it in December

In December, Sibiu is very humid with an average amount of 90% (relative humidity), which could be described as humid but cool. January has the highest relative humidity at 92% and is the least humid in August at 58%. This graph shows the average amount of humidity in Sibiu throughout December based on historical data.

Average relative humidity in Sibiu by month

How windy is it in December

Historically, the wind in Sibiu during December blows at an average speed of 10.4 mph (16.7 kph). The windiest month is February with an average wind speed of 11.2 mph (18.0 kph), while the calmest month is August with an average wind speed of 7.4 mph (12.0 kph). This graph shows the average wind speed in Sibiu in December based on historical data.

Average monthly wind speed in Sibiu

What to wear in December

With an average high of 36°F (2°C) and a low of 23°F (-5°C), it generally feels really cold with a gentle breeze. With that in mind, most people would dress in something warm like a jacket

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What's the weather like in Sibiu the rest of the year

We've collected the weather data for Sibiu during all other months of the year too:

Where does this data come from

Weather data for Sibiu was collected from the MERRA-2 project from NASA, which used a climate model combined with historical data from weather stations around the world to estimate what the conditions were like for every point on the Earth.

For all data based on historical data, we've averaged the data from the past 11 years (2010-2020). For example, for the hourly temperature at 10am, we've looked at the temperature at 10am on every day in December (e.g., December 1, December 2, etc. in 2010, 2011, etc.) and took the arithmetic mean. We did not smooth the data, so for example, our daily temperature line will have some randomness due to the fact that weather is random in the first place.

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