nomadseason

December Weather in Rumia, Poland

Last updated: August 27, 2025

In December, the average temperature in Rumia, Poland hovers around 2°C (36°F). Expect chilly days, with minimum temperatures plummeting to -9°C (17°F) and occasionally reaching a maximum of 10°C (50°F). With an average humidity of 89% and 63 mm (2.5 in) of precipitation spread over 15 days, it's a month where layers and a good umbrella are essential companions.

December Temperature in Rumia

In December in Rumia, the average temperature is 2°C (36°F). Maximums can reach 10°C (50°F), while minimums can drop as low as -9°C (17°F). Be sure to pack warm clothing if you're planning to travel during this chilly season.

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

The chart illustrates December temperature patterns in Rumia, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rumia, December typically has an average temperature of 2°C (36°F), with highs reaching up to 10°C (50°F) and lows dropping to around -9°C (17°F).
JanFebMarAprMayJunJulAugSepOctNovDec343337445262646559514336
Data source: Temperature data for Rumia 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 Rumia

In Rumia in December, the precipitation amount is 63 mm (2.5 in) over a period of 15 days.

December Precipitation Trends in Rumia

The chart displays monthly precipitation patterns in Rumia, 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 Rumia, December typically receives around 63 mm (2.5 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec5445523867651047179855663
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Rumia

In Rumia in December, humidity is 89%. With an average temperature of 2°C (36°F), this humidity feels like an uncomfortable chill that clings to your skin, making outdoor activities feel even colder and less inviting for traveling.

December Average Humidity in Rumia

This chart illustrates the average monthly humidity levels in Rumia, 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 Rumia is approximately 89%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%89%88%84%77%76%76%76%81%86%89%89%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Rumia

In Rumia in December, the maximum UV index is 1, which corresponds to a low Exposure Category. This means you have a time to burn of 45 minutes. For more details, you can check the Hourly UV Index in Rumia.

Maximum UV Index Levels in Rumia for December

The chart shows the monthly maximum UV Index (UVI) for Rumia 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 Rumia typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124567765311
Data source: Rumia 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 Rumia Compares to Other Months

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

This table compares monthly weather conditions in Rumia, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)54 mm (2.1 inches)89%low
February Weather1°C (34°F)45 mm (1.8 inches)89%low
March Weather3°C (37°F)52 mm (2.0 inches)88%moderate
April Weather7°C (44°F)38 mm (1.5 inches)84%moderate
May Weather11°C (52°F)67 mm (2.6 inches)76%high
June Weather17°C (63°F)65 mm (2.6 inches)76%high
July Weather18°C (65°F)104 mm (4.1 inches)76%high
August Weather18°C (65°F)71 mm (2.8 inches)76%high
September Weather15°C (59°F)79 mm (3.1 inches)81%moderate
October Weather11°C (51°F)85 mm (3.4 inches)86%moderate
November Weather6°C (43°F)56 mm (2.2 inches)89%low
December Weather2°C (36°F)63 mm (2.5 inches)89%low

Compare Rumia's Climate with Cities Worldwide