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December Weather in Viasu, Romania

Last updated: August 27, 2025

In December, the average temperature in Viasu, Romania hovers around 3°C (38°F). Expect a chill in the air where minima can plummet to -11°C (13°F) and maxima may reach a mild 16°C (61°F). Be prepared for some rain, as 66 mm (2.6 in) of precipitation is likely over 9 days, all while the air remains humid at an average of 90%.

December Temperature in Viasu

In December in Viasu, the average temperature is 3°C (38°F). Maximum temperatures can reach 16°C (61°F), while the minimum can drop to as low as -11°C (13°F). Travelers should prepare for a wide range of temperatures, making layers essential for comfort during their visit.

December Weather in Viasu: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Viasu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Viasu, December typically has an average temperature of 3°C (38°F), with highs reaching up to 16°C (61°F) and lows dropping to around -11°C (13°F).
JanFebMarAprMayJunJulAugSepOctNovDec333945556573777869574638
Data source: Temperature data for Viasu generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Viasu

In Viasu in December, the precipitation amount is 66 mm (2.6 in) over the course of 9 days.

December Precipitation Trends in Viasu

The chart displays monthly precipitation patterns in Viasu, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Viasu, December typically receives around 66 mm (2.6 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec494363357568582712575466
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Viasu

In Viasu in December humidity is 90%. With an average temperature of 3°C (38°F), this humidity feels like a damp chill wrapping around you, making travel uncomfortable as the cold penetrates your clothing while the heavy moisture lingers in the air.

December Average Humidity in Viasu

This chart illustrates the average monthly humidity levels in Viasu, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Viasu is approximately 90%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%86%83%74%70%67%65%51%58%80%88%90%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Viasu

In Viasu in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Viasu, you can visit Hourly UV Index in Viasu.

Maximum UV Index Levels in Viasu for December

The chart shows the monthly maximum UV Index (UVI) for Viasu in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Viasu typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235789987532
Data source: Viasu December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How December Weather in Viasu Compares to Other Months

Weather in Viasu varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Viasu, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Viasu, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)49 mm (1.9 inches)91%low
February Weather4°C (39°F)43 mm (1.7 inches)86%moderate
March Weather7°C (46°F)63 mm (2.5 inches)83%moderate
April Weather13°C (56°F)35 mm (1.4 inches)74%high
May Weather18°C (65°F)75 mm (2.9 inches)70%very high
June Weather23°C (73°F)68 mm (2.7 inches)67%very high
July Weather25°C (77°F)58 mm (2.3 inches)65%very high
August Weather26°C (78°F)27 mm (1.1 inches)51%very high
September Weather21°C (69°F)12 mm (0.5 inches)58%high
October Weather14°C (57°F)57 mm (2.3 inches)80%moderate
November Weather8°C (47°F)54 mm (2.1 inches)88%moderate
December Weather3°C (38°F)66 mm (2.6 inches)90%low

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