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December Weather in Suwalki, Poland

Last updated: August 27, 2025

In Suwalki, Poland, the average temperature in December hovers around 0°C (32°F), with extremes ranging from a chilly -13°C (8°F) to a mild 10°C (49°F). Expect 55 mm (2.2 in) of precipitation spread over 13 days, contributing to the region's high average humidity of 93%. Prepare accordingly for a cool, damp month!

December Temperature in Suwalki

In December in Suwalki, the average temperature is 0°C (32°F). Maximums can reach 10°C (49°F), and minimums can be as low as -13°C (8°F). Travelers should be prepared for cold weather, with the possibility of both mild and harsh conditions during this time.

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

The chart illustrates December temperature patterns in Suwalki, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Suwalki, December typically has an average temperature of 0°C (32°F), with highs reaching up to 10°C (49°F) and lows dropping to around -13°C (8°F).
JanFebMarAprMayJunJulAugSepOctNovDec293036455465656557484032
Data source: Temperature data for Suwalki 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 Suwalki

In Suwalki in December, the precipitation amount is 55 mm (2.2 in) spread over 13 days.

December Precipitation Trends in Suwalki

The chart displays monthly precipitation patterns in Suwalki, 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 Suwalki, December typically receives around 55 mm (2.2 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec433642457054968569624055
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Suwalki

In Suwalki in December, humidity is 93%. With an average temperature of 0°C (32°F), this humidity feels like a bone-chilling cold that seeps into your clothes, making every step outside feel damp and uncomfortable for traveling.

December Average Humidity in Suwalki

This chart illustrates the average monthly humidity levels in Suwalki, 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 Suwalki is approximately 93%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%91%88%77%59%59%60%60%72%89%91%93%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Suwalki

In Suwalki 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 Suwalki.

Maximum UV Index Levels in Suwalki for December

The chart shows the monthly maximum UV Index (UVI) for Suwalki 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 Suwalki typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124568765321
Data source: Suwalki 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 Suwalki Compares to Other Months

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

This table compares monthly weather conditions in Suwalki, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)43 mm (1.7 inches)93%low
February Weather-1°C (30°F)36 mm (1.4 inches)90%low
March Weather2°C (36°F)42 mm (1.6 inches)88%moderate
April Weather7°C (45°F)45 mm (1.8 inches)77%moderate
May Weather12°C (54°F)70 mm (2.8 inches)59%high
June Weather18°C (65°F)54 mm (2.1 inches)59%very high
July Weather19°C (66°F)95 mm (3.8 inches)60%high
August Weather18°C (65°F)85 mm (3.3 inches)60%high
September Weather14°C (57°F)69 mm (2.7 inches)72%moderate
October Weather9°C (48°F)62 mm (2.4 inches)88%moderate
November Weather4°C (40°F)40 mm (1.6 inches)91%low
December Weather0°C (32°F)55 mm (2.2 inches)93%low

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