January Weather in Jonava, Lithuania

Last updated: August 23, 2025

In Jonava, Lithuania, the average temperature in January hovers around -2°C (30°F), showcasing the chilly atmosphere of the season. Expect a minimum temperature plunging to -25°C (-13°F) and a potential maximum rise to 7°C (45°F). The month is also marked by 51 mm (2.0 in) of precipitation over about 11 days, contributing to a rather damp environment. With an average humidity of 94%, ensure you stay warm and prepared for the winter elements!

January Temperature in Jonava

In January in Jonava, the average temperature is -2°C (30°F), with maximums reaching 7°C (45°F) and minimums dropping as low as -25°C (-13°F). Travelers should be prepared for a wide range of temperatures and dress warmly to enjoy their visit.

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

The chart illustrates January temperature patterns in Jonava, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Jonava, January typically has an average temperature of -2°C (30°F), with highs reaching up to 7°C (45°F) and lows dropping to around -25°C (-13°F).

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

January Precipitation in Jonava

In Jonava in January, the precipitation amount is 51 mm (2.0 in) spread over 11 days.

January Precipitation Trends in Jonava

The chart displays monthly precipitation patterns in Jonava, 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 Jonava, January typically receives around 51 mm (2.0 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 Jonava

In Jonava in January, humidity is 94%. With an average temperature of -2°C (30°F), this humidity feels like trudging through a dense fog, making travel uncomfortable and each breath feel heavy as the cold air clings to your skin.

January Average Humidity in Jonava

This chart illustrates the average monthly humidity levels in Jonava, 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 Jonava is approximately 94%, 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 Jonava

In Jonava 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 Jonava.

Maximum UV Index Levels in Jonava for January

The chart shows the monthly maximum UV Index (UVI) for Jonava 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 Jonava typically reaches 1, which falls under the low exposure category.

Data source: Jonava 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 Jonava Compares to Other Months

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

This table compares monthly weather conditions in Jonava, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-2°C (30°F)	51 mm (2.0 inches)	94%	low
February Weather	-1°C (30°F)	38 mm (1.5 inches)	92%	low
March Weather	2°C (36°F)	43 mm (1.7 inches)	90%	moderate
April Weather	7°C (45°F)	43 mm (1.7 inches)	86%	moderate
May Weather	13°C (55°F)	63 mm (2.5 inches)	72%	high
June Weather	18°C (65°F)	57 mm (2.2 inches)	74%	high
July Weather	19°C (66°F)	93 mm (3.7 inches)	76%	high
August Weather	18°C (65°F)	85 mm (3.3 inches)	74%	high
September Weather	14°C (57°F)	67 mm (2.6 inches)	83%	moderate
October Weather	9°C (48°F)	66 mm (2.6 inches)	91%	moderate
November Weather	5°C (40°F)	51 mm (2.0 inches)	93%	low
December Weather	0°C (32°F)	56 mm (2.2 inches)	95%	low