nomadseason

December Weather in Hartop, Romania

Last updated: August 27, 2025

In December, the average temperature in Hartop, Romania hovers around 0°C (33°F). During this month, temperatures can dip as low as -18°C (0°F), while reaching a maximum of 15°C (58°F). Expect 54 mm (2.1 in) of precipitation spread over approximately 11 days, contributing to an average humidity of 90%—ensuring a chilly and damp atmosphere.

December Temperature in Hartop

In December in Hartop, the average temperature is 0°C (33°F). The maximum can reach 15°C (58°F), while the minimum can drop as low as -18°C (0°F). Be prepared for cold weather and pack accordingly if you plan to travel during this time.

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

The chart illustrates December temperature patterns in Hartop, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hartop, December typically has an average temperature of 0°C (33°F), with highs reaching up to 15°C (58°F) and lows dropping to around -18°C (0°F).
JanFebMarAprMayJunJulAugSepOctNovDec293339495866686960514033
Data source: Temperature data for Hartop generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Hartop

In Hartop in December, the precipitation amount is 54 mm (2.1 in), occurring over the course of 11 days.

December Precipitation Trends in Hartop

The chart displays monthly precipitation patterns in Hartop, 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 Hartop, December typically receives around 54 mm (2.1 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec2542474387120836242323455
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Hartop

In Hartop in December humidity is 90%. With average temperature 0°C (33°F) this humidity feels like a damp chill that clings to your skin, making every step outside feel heavier and more exhausting for traveling.

December Average Humidity in Hartop

This chart illustrates the average monthly humidity levels in Hartop, 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 Hartop is approximately 90%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%88%86%79%73%73%69%56%62%81%89%90%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Hartop

In Hartop 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 Hartop, you can visit Hourly UV Index in Hartop.

Maximum UV Index Levels in Hartop for December

The chart shows the monthly maximum UV Index (UVI) for Hartop 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 Hartop typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689987432
Data source: Hartop 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 Hartop Compares to Other Months

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

This table compares monthly weather conditions in Hartop, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)25 mm (1.0 inches)92%low
February Weather0°C (33°F)42 mm (1.7 inches)88%moderate
March Weather4°C (39°F)47 mm (1.9 inches)86%moderate
April Weather9°C (49°F)42 mm (1.7 inches)79%high
May Weather14°C (58°F)87 mm (3.4 inches)73%very high
June Weather19°C (66°F)120 mm (4.7 inches)73%very high
July Weather20°C (68°F)83 mm (3.3 inches)68%very high
August Weather20°C (69°F)62 mm (2.4 inches)56%very high
September Weather16°C (60°F)42 mm (1.7 inches)62%high
October Weather10°C (51°F)32 mm (1.3 inches)80%moderate
November Weather5°C (40°F)33 mm (1.3 inches)89%moderate
December Weather0°C (33°F)54 mm (2.1 inches)90%low

Compare Hartop's Climate with Cities Worldwide