January Weather in Boleslaw, Poland

Last updated: August 27, 2025

In January, the average temperature in Boleslaw, Poland hovers around -1°C (30°F). Expect chilly conditions, as temperatures can dip as low as -25°C (-14°F), while occasionally reaching a maximum of 11°C (51°F). With an average precipitation of 40 mm (1.6 in) over 11 days, and a high humidity of 90%, be prepared for damp and frosty weather.

January Temperature in Boleslaw

In January in Boleslaw, the average temperature is -1°C (30°F), with maximums reaching 11°C (51°F) and minimums dropping as low as -25°C (-14°F). Travelers should prepare for a wide range of temperatures and dress in layers to stay comfortable during their visit.

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

The chart illustrates January temperature patterns in Boleslaw, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Boleslaw, January typically has an average temperature of -1°C (30°F), with highs reaching up to 11°C (51°F) and lows dropping to around -25°C (-14°F).

Data source: Temperature data for Boleslaw generated using information from the Copernicus Climate Change Service.

January Precipitation in Boleslaw

In Boleslaw in January, the precipitation amount is 40 mm (1.6 in) spread over a duration of 11 days.

January Precipitation Trends in Boleslaw

The chart displays monthly precipitation patterns in Boleslaw, 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 Boleslaw, January typically receives around 40 mm (1.6 inches) of precipitation spread over approximately 11 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

January Humidity in Boleslaw

In Boleslaw in January, humidity is 90%. With an average temperature of -1°C (30°F), this humidity feels like a bone-chilling dampness that seeps into your clothes, making outdoor activities uncomfortable and travel quite challenging.

January Average Humidity in Boleslaw

This chart illustrates the average monthly humidity levels in Boleslaw, 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 Boleslaw is approximately 90%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Boleslaw

In Boleslaw 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 Boleslaw, you can visit Hourly UV Index in Boleslaw.

Maximum UV Index Levels in Boleslaw for January

The chart shows the monthly maximum UV Index (UVI) for Boleslaw 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 Boleslaw typically reaches 2, which falls under the low exposure category.

Data source: Boleslaw 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 Boleslaw Compares to Other Months

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

This table compares monthly weather conditions in Boleslaw, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-1°C (30°F)	40 mm (1.6 inches)	90%	low
February Weather	1°C (34°F)	57 mm (2.2 inches)	88%	low
March Weather	4°C (40°F)	47 mm (1.9 inches)	86%	moderate
April Weather	9°C (48°F)	62 mm (2.4 inches)	79%	high
May Weather	13°C (56°F)	101 mm (4.0 inches)	65%	high
June Weather	19°C (66°F)	83 mm (3.3 inches)	66%	very high
July Weather	19°C (67°F)	98 mm (3.9 inches)	67%	very high
August Weather	20°C (68°F)	111 mm (4.4 inches)	67%	high
September Weather	15°C (59°F)	106 mm (4.2 inches)	72%	high
October Weather	10°C (51°F)	74 mm (2.9 inches)	83%	moderate
November Weather	5°C (42°F)	47 mm (1.8 inches)	90%	low
December Weather	1°C (35°F)	58 mm (2.3 inches)	92%	low