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January Weather in Sierakow, Poland

Last updated: August 27, 2025

In January, the average temperature in Sierakow, Poland hovers around 1°C (34°F). Prepare for extremes; temperatures can dip as low as -19°C (-1°F), while they may rise to a maximum of 13°C (55°F). Expect a total precipitation of 54 mm (2.1 in) spread across 12 days, and don't forget to bundle up—the average humidity is 90%!

January Temperature in Sierakow

In January in Sierakow, the average temperature is 1°C (34°F). The maximum can reach 13°C (55°F), while the minimum can drop as low as -19°C (-1°F). It’s advisable to pack warm clothing and be prepared for a range of weather conditions during your travels.

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

The chart illustrates January temperature patterns in Sierakow, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sierakow, January typically has an average temperature of 1°C (34°F), with highs reaching up to 13°C (55°F) and lows dropping to around -19°C (-1°F).
JanFebMarAprMayJunJulAugSepOctNovDec343540485667676859524336
Data source: Temperature data for Sierakow 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 Sierakow

In Sierakow in January, the total precipitation amount is 54 mm (2.1 in) spread over a period of 12 days.

January Precipitation Trends in Sierakow

The chart displays monthly precipitation patterns in Sierakow, 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 Sierakow, January typically receives around 54 mm (2.1 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec5444493562531045556624048
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Sierakow

In Sierakow in January, humidity is 90%. With an average temperature of 1°C (34°F), this humidity feels like you're wrapped in a cold, damp blanket, making travel uncomfortable and requiring extra layers to combat the chill.

January Average Humidity in Sierakow

This chart illustrates the average monthly humidity levels in Sierakow, 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 Sierakow is approximately 90%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%90%87%81%67%67%67%67%78%84%89%92%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Sierakow

In Sierakow 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 Sierakow.

Maximum UV Index Levels in Sierakow for January

The chart shows the monthly maximum UV Index (UVI) for Sierakow 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 Sierakow typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578775321
Data source: Sierakow 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 Sierakow Compares to Other Months

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

This table compares monthly weather conditions in Sierakow, showing how January’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)90%low
February Weather2°C (36°F)44 mm (1.7 inches)90%low
March Weather4°C (40°F)49 mm (1.9 inches)87%moderate
April Weather9°C (49°F)35 mm (1.4 inches)80%moderate
May Weather14°C (57°F)62 mm (2.4 inches)67%high
June Weather19°C (67°F)53 mm (2.1 inches)67%very high
July Weather19°C (67°F)104 mm (4.1 inches)67%high
August Weather20°C (68°F)55 mm (2.2 inches)67%high
September Weather15°C (60°F)56 mm (2.2 inches)78%moderate
October Weather11°C (52°F)62 mm (2.4 inches)84%moderate
November Weather6°C (43°F)40 mm (1.6 inches)89%low
December Weather2°C (37°F)48 mm (1.9 inches)92%low

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