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January Weather in Jaroslaw, Poland

Last updated: August 27, 2025

In January, the average temperature in Jaroslaw, Poland hovers around -1°C (31°F), but don't be fooled by the mild average—minimums can plunge to -23°C (-9°F), while maximums may reach a milder 11°C (52°F). Expect about 40 mm (1.6 in) of precipitation spread across 10 days, and prepare for a cozy atmosphere with an average humidity of 92%.

January Temperature in Jaroslaw

In January in Jaroslaw, the average temperature is -1°C (31°F), with a maximum that can reach 11°C (52°F) and a minimum that can drop as low as -23°C (-9°F). Be prepared for a wide range of temperatures during your travels!

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

The chart illustrates January temperature patterns in Jaroslaw, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Jaroslaw, January typically has an average temperature of -1°C (31°F), with highs reaching up to 11°C (52°F) and lows dropping to around -23°C (-9°F).
JanFebMarAprMayJunJulAugSepOctNovDec303439495767686859514235
Data source: Temperature data for Jaroslaw 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 Jaroslaw

In Jaroslaw in January, the precipitation amount is 40 mm (1.6 in) over a span of 10 days.

January Precipitation Trends in Jaroslaw

The chart displays monthly precipitation patterns in Jaroslaw, 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 Jaroslaw, January typically receives around 40 mm (1.6 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec406046449886958977684964
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Jaroslaw

In Jaroslaw in January humidity is 92%. With an average temperature of -1°C (31°F), this humidity feels like a heavy, damp chill that seeps into your bones, making travel uncomfortable and challenging as the cold air mixes with the moisture, creating a biting sensation that lingers long after stepping outside.

January Average Humidity in Jaroslaw

This chart illustrates the average monthly humidity levels in Jaroslaw, 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 Jaroslaw is approximately 92%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%89%88%79%71%72%66%60%72%86%90%91%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Jaroslaw

In Jaroslaw in January, 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 Jaroslaw, you can visit Hourly UV Index in Jaroslaw.

Maximum UV Index Levels in Jaroslaw for January

The chart shows the monthly maximum UV Index (UVI) for Jaroslaw 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 Jaroslaw typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec224678876421
Data source: Jaroslaw 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 Jaroslaw Compares to Other Months

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

This table compares monthly weather conditions in Jaroslaw, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (31°F)40 mm (1.6 inches)92%low
February Weather1°C (34°F)60 mm (2.4 inches)89%low
March Weather4°C (40°F)46 mm (1.8 inches)88%moderate
April Weather10°C (49°F)43 mm (1.7 inches)79%high
May Weather14°C (58°F)98 mm (3.9 inches)71%high
June Weather20°C (67°F)86 mm (3.4 inches)72%very high
July Weather20°C (69°F)95 mm (3.7 inches)66%very high
August Weather20°C (68°F)89 mm (3.5 inches)60%high
September Weather15°C (60°F)77 mm (3.0 inches)71%high
October Weather11°C (52°F)68 mm (2.7 inches)86%moderate
November Weather6°C (43°F)48 mm (1.9 inches)90%low
December Weather1°C (35°F)64 mm (2.5 inches)91%low

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