January Weather in Hrastnik, Slovenia

Last updated: August 27, 2025

In January, the average temperature in Hrastnik, Slovenia hovers around 0°C (32°F), with the potential to dip as low as -18°C (0°F) and rise to a comfortable 12°C (54°F). Expect about 39 mm (1.5 in) of precipitation over approximately 6 days, contributing to a high average humidity of 91%. Prepare for a chilly, damp month!

January Temperature in Hrastnik

In January in Hrastnik, the average temperature is 0°C (32°F). Maximum temperatures can reach 12°C (54°F) while minimums can drop as low as -18°C (0°F). Travelers should be prepared for cold weather conditions and dress in layers to stay warm.

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

The chart illustrates January temperature patterns in Hrastnik, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hrastnik, January typically has an average temperature of 0°C (32°F), with highs reaching up to 12°C (54°F) and lows dropping to around -18°C (0°F).

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

January Precipitation in Hrastnik

In Hrastnik in January, the precipitation amount is 39 mm (1.5 in), occurring over the course of 6 days.

January Precipitation Trends in Hrastnik

The chart displays monthly precipitation patterns in Hrastnik, 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 Hrastnik, January typically receives around 39 mm (1.5 inches) of precipitation spread over approximately 6 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 Hrastnik

In Hrastnik in January, humidity is 91%. With an average temperature of 0°C (32°F), this humidity feels like a damp chill that penetrates your clothes, making every movement feel heavy and uncomfortable for traveling.

January Average Humidity in Hrastnik

This chart illustrates the average monthly humidity levels in Hrastnik, 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 Hrastnik is approximately 91%, 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 Hrastnik

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

Maximum UV Index Levels in Hrastnik for January

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

Data source: Hrastnik 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 Hrastnik Compares to Other Months

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

This table compares monthly weather conditions in Hrastnik, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	0°C (32°F)	39 mm (1.5 inches)	91%	low
February Weather	3°C (38°F)	68 mm (2.7 inches)	87%	moderate
March Weather	6°C (42°F)	60 mm (2.4 inches)	82%	moderate
April Weather	10°C (50°F)	94 mm (3.7 inches)	79%	high
May Weather	14°C (58°F)	150 mm (5.9 inches)	74%	very high
June Weather	19°C (67°F)	89 mm (3.5 inches)	75%	very high
July Weather	21°C (69°F)	132 mm (5.2 inches)	74%	very high
August Weather	21°C (69°F)	114 mm (4.5 inches)	68%	very high
September Weather	15°C (60°F)	134 mm (5.3 inches)	74%	high
October Weather	11°C (52°F)	76 mm (3.0 inches)	88%	moderate
November Weather	6°C (43°F)	108 mm (4.2 inches)	90%	moderate
December Weather	1°C (35°F)	94 mm (3.7 inches)	89%	low