January Weather in Sumice, Czech Republic

Last updated: August 23, 2025

In January, the average temperature in Sumice, Czech Republic hovers around -1°C (30°F). However, be prepared for a wide range as temperatures can plunge to a chilly -21°C (-5°F) or rise to a mild 12°C (53°F). During this time, expect about 43 mm (1.7 in) of precipitation spread over 9 days, along with a high average humidity of 90%. Embrace the chill and make sure to dress warmly!

January Temperature in Sumice

In January in Sumice, the average temperature is -1°C (30°F), with maximums reaching 12°C (53°F) and minimums dropping as low as -21°C (-5°F). Travelers should be prepared for chilly conditions and variation in temperatures, making it essential to pack warm clothing and layers for their trip.

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

The chart illustrates January temperature patterns in Sumice, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sumice, January typically has an average temperature of -1°C (30°F), with highs reaching up to 12°C (53°F) and lows dropping to around -21°C (-5°F).

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

January Precipitation in Sumice

In Sumice in January, the precipitation amount reaches 43 mm (1.7 in) over the course of 9 days.

January Precipitation Trends in Sumice

The chart displays monthly precipitation patterns in Sumice, 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 Sumice, January typically receives around 43 mm (1.7 inches) of precipitation spread over approximately 9 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 Sumice

In Sumice 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 Sumice

This chart illustrates the average monthly humidity levels in Sumice, 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 Sumice 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 Sumice

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

Maximum UV Index Levels in Sumice for January

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

Data source: Sumice 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 Sumice Compares to Other Months

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

This table compares monthly weather conditions in Sumice, 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)	43 mm (1.7 inches)	90%	low
February Weather	2°C (35°F)	47 mm (1.9 inches)	87%	moderate
March Weather	5°C (40°F)	44 mm (1.7 inches)	83%	moderate
April Weather	9°C (49°F)	44 mm (1.7 inches)	76%	high
May Weather	14°C (57°F)	94 mm (3.7 inches)	70%	high
June Weather	19°C (67°F)	86 mm (3.4 inches)	71%	very high
July Weather	20°C (68°F)	92 mm (3.6 inches)	67%	very high
August Weather	20°C (69°F)	99 mm (3.9 inches)	64%	high
September Weather	15°C (60°F)	92 mm (3.6 inches)	67%	high
October Weather	10°C (51°F)	68 mm (2.7 inches)	83%	moderate
November Weather	6°C (42°F)	53 mm (2.1 inches)	90%	low
December Weather	1°C (35°F)	64 mm (2.5 inches)	91%	low