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December Weather in Sinmartin, Romania

Last updated: August 27, 2025

In December, the average temperature in Sinmartin, Romania hovers around 3°C (38°F), with a minimum dip to -9°C (17°F) and a maximum rise to 17°C (63°F). Expect 83 mm (3.3 in) of precipitation spread over 14 days, contributing to a notably high average humidity of 92%.

December Temperature in Sinmartin

In December in Sinmartin, the average temperature is 3°C (38°F). The maximum can reach 17°C (63°F), while the minimum can dip as low as -9°C (17°F). This weather makes it essential for travelers to pack warm layers and be prepared for chilly conditions.

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

The chart illustrates December temperature patterns in Sinmartin, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sinmartin, December typically has an average temperature of 3°C (38°F), with highs reaching up to 17°C (63°F) and lows dropping to around -9°C (17°F).
JanFebMarAprMayJunJulAugSepOctNovDec313843536170727464544537
Data source: Temperature data for Sinmartin 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 Sinmartin

In Sinmartin in December, the precipitation amount is 83 mm (3.3 in) spread over a period of 14 days.

December Precipitation Trends in Sinmartin

The chart displays monthly precipitation patterns in Sinmartin, 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 Sinmartin, December typically receives around 83 mm (3.3 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec506253518399634444495583
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Sinmartin

In Sinmartin in December humidity is 92%. With an average temperature of 3°C (38°F), this humidity feels like a wet chill that seeps into your bones, making outdoor activities uncomfortable and travel arrangements challenging.

December Average Humidity in Sinmartin

This chart illustrates the average monthly humidity levels in Sinmartin, 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 Sinmartin is approximately 92%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%87%83%75%72%72%71%62%68%84%90%92%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Sinmartin

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

Maximum UV Index Levels in Sinmartin for December

The chart shows the monthly maximum UV Index (UVI) for Sinmartin 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 Sinmartin typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689987422
Data source: Sinmartin 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 Sinmartin Compares to Other Months

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

This table compares monthly weather conditions in Sinmartin, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)50 mm (2.0 inches)89%low
February Weather3°C (38°F)62 mm (2.4 inches)87%moderate
March Weather6°C (44°F)53 mm (2.1 inches)83%moderate
April Weather12°C (53°F)51 mm (2.0 inches)75%high
May Weather16°C (61°F)83 mm (3.3 inches)72%very high
June Weather21°C (70°F)99 mm (3.9 inches)72%very high
July Weather22°C (72°F)63 mm (2.5 inches)71%very high
August Weather23°C (74°F)44 mm (1.7 inches)62%very high
September Weather18°C (64°F)44 mm (1.7 inches)68%high
October Weather12°C (55°F)49 mm (1.9 inches)84%moderate
November Weather7°C (46°F)55 mm (2.2 inches)90%low
December Weather3°C (38°F)83 mm (3.3 inches)92%low

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