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December Weather in Siaulenai, Lithuania

Last updated: August 23, 2025

In December, the average temperature in Siaulenai, Lithuania hovers around -1°C (31°F), with extremes ranging from a chilly -18°C (-1°F) to a milder 9°C (49°F). Expect a precipitation total of 54 mm (2.1 in) spread over 12 days, complemented by a notably high average humidity of 95%. Prepare for a cold and wet month!

December Temperature in Siaulenai

In December in Siaulenai, the average temperature is -1°C (31°F), with maximums reaching 9°C (49°F) and minimums falling as low as -18°C (-1°F). Travelers should be prepared for chilly conditions and pack accordingly to enjoy their visit.

December Weather in Siaulenai: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Siaulenai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Siaulenai, December typically has an average temperature of -1°C (31°F), with highs reaching up to 9°C (49°F) and lows dropping to around -18°C (-1°F).
JanFebMarAprMayJunJulAugSepOctNovDec292935445364646356473931
Data source: Temperature data for Siaulenai 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.

December Precipitation in Siaulenai

In Siaulenai in December, the total precipitation amount is 54 mm (2.1 in) spread over a period of 12 days.

December Precipitation Trends in Siaulenai

The chart displays monthly precipitation patterns in Siaulenai, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Siaulenai, December typically receives around 54 mm (2.1 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec473844397657948362615254
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Siaulenai

In Siaulenai in December, humidity is 95%. With an average temperature of -1°C (31°F), this humidity feels like an icy weight on your skin, making travel uncomfortable and every breath a challenge as the cold dampness clings to your clothes.

December Average Humidity in Siaulenai

This chart illustrates the average monthly humidity levels in Siaulenai, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Siaulenai is approximately 95%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec94%92%90%86%72%74%76%74%83%91%93%95%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Siaulenai

In Siaulenai in December, 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 Siaulenai.

Maximum UV Index Levels in Siaulenai for December

The chart shows the monthly maximum UV Index (UVI) for Siaulenai in December, 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 December, the maximum UV index in Siaulenai typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123567765321
Data source: Siaulenai December 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 December Weather in Siaulenai Compares to Other Months

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

This table compares monthly weather conditions in Siaulenai, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)47 mm (1.8 inches)94%low
February Weather-2°C (29°F)38 mm (1.5 inches)92%low
March Weather1°C (35°F)44 mm (1.7 inches)90%moderate
April Weather6°C (44°F)39 mm (1.5 inches)86%moderate
May Weather12°C (53°F)76 mm (3.0 inches)72%high
June Weather18°C (64°F)57 mm (2.3 inches)74%high
July Weather18°C (65°F)94 mm (3.7 inches)76%high
August Weather17°C (63°F)83 mm (3.3 inches)74%high
September Weather13°C (56°F)62 mm (2.4 inches)83%moderate
October Weather8°C (47°F)61 mm (2.4 inches)91%moderate
November Weather4°C (40°F)52 mm (2.0 inches)93%low
December Weather-1°C (31°F)54 mm (2.1 inches)95%low

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