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January Weather in Bialystok, Poland

Last updated: August 27, 2025

In Bialystok, Poland, the average temperature in January hovers around -2°C (29°F). However, be prepared for temperature fluctuations, with lows plunging to a frigid -24°C (-11°F) and highs reaching a milder 9°C (48°F). During this month, 44 mm (1.7 in) of precipitation is expected over approximately 11 days, accompanied by an average humidity level of 93%. Stay warm and dry!

January Temperature in Bialystok

In January in Bialystok, the average temperature is -2°C (29°F). The maximum can reach 9°C (48°F), while the minimum can drop as low as -24°C (-11°F). Travelers should be prepared for cold weather and pack accordingly to enjoy their visit to Bialystok.

January Weather in Bialystok: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Bialystok, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bialystok, January typically has an average temperature of -2°C (29°F), with highs reaching up to 9°C (48°F) and lows dropping to around -24°C (-11°F).
JanFebMarAprMayJunJulAugSepOctNovDec293137465566666657494032
Data source: Temperature data for Bialystok 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.

January Precipitation in Bialystok

In Bialystok in January, the precipitation amount is 44 mm (1.7 in) during 11 days, indicating a relatively wet period for that time of year.

January Precipitation Trends in Bialystok

The chart displays monthly precipitation patterns in Bialystok, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Bialystok, January typically receives around 44 mm (1.7 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec444243457560988968643956
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Bialystok

In Bialystok in January humidity is 93%. With an average temperature of -2°C (29°F), this humidity feels like a dense, frosty blanket that clings to you, making the cold seep into your bones and transforming outdoor activities into a chilly challenge.

January Average Humidity in Bialystok

This chart illustrates the average monthly humidity levels in Bialystok, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Bialystok 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 January generated using information from the Copernicus Climate Change Service.

January UV Index in Bialystok

In Bialystok in January, 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 Bialystok.

Maximum UV Index Levels in Bialystok for January

The chart shows the monthly maximum UV Index (UVI) for Bialystok in January, 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 January, the maximum UV index in Bialystok typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124568775321
Data source: Bialystok January 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 January Weather in Bialystok Compares to Other Months

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

This table compares monthly weather conditions in Bialystok, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)44 mm (1.7 inches)93%low
February Weather-1°C (31°F)42 mm (1.6 inches)90%low
March Weather3°C (37°F)42 mm (1.7 inches)88%moderate
April Weather8°C (46°F)45 mm (1.8 inches)77%moderate
May Weather13°C (56°F)75 mm (3.0 inches)59%high
June Weather19°C (66°F)60 mm (2.3 inches)59%very high
July Weather19°C (67°F)98 mm (3.9 inches)60%high
August Weather19°C (66°F)89 mm (3.5 inches)60%high
September Weather14°C (57°F)68 mm (2.7 inches)72%moderate
October Weather9°C (49°F)64 mm (2.5 inches)88%moderate
November Weather5°C (40°F)39 mm (1.5 inches)91%low
December Weather0°C (33°F)56 mm (2.2 inches)93%low

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