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December Weather in Prague, United States

Last updated: June 24, 2025

In December, the average temperature in Prague, United States hovers around 7°C (45°F), with extremes ranging from a chilly -8°C (19°F) to a warm 26°C (79°F). Expect about 37 mm (1.5 in) of precipitation spread over 5 days, creating a damp atmosphere with an average humidity of 87%.

December Temperature in Prague

In December in Prague, the average temperature is 7°C (45°F), with maximums reaching 26°C (79°F) and minimums dropping as low as -8°C (19°F). It's important to pack accordingly to enjoy a comfortable visit during this varied climate.

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

The chart illustrates December temperature patterns in Prague, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Prague, December typically has an average temperature of 7°C (45°F), with highs reaching up to 26°C (79°F) and lows dropping to around -8°C (19°F).
JanFebMarAprMayJunJulAugSepOctNovDec404254607079838176635145
Data source: Temperature data for Prague 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 Prague

In Prague in December, the precipitation amount is 37 mm (1.5 in) spread over a period of 5 days.

December Precipitation Trends in Prague

The chart displays monthly precipitation patterns in Prague, 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 Prague, December typically receives around 37 mm (1.5 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec6163891711491008168921214337
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Prague

In Prague in December, humidity is 87%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill that seeps into your bones, making outdoor adventures somewhat uncomfortable and urging travelers to seek refuge in cozy cafes or warm indoor activities.

December Average Humidity in Prague

This chart illustrates the average monthly humidity levels in Prague, 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 Prague is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec79%78%75%75%83%82%78%68%64%71%82%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Prague

In Prague in December, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Prague for better planning.

Maximum UV Index Levels in Prague for December

The chart shows the monthly maximum UV Index (UVI) for Prague 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 Prague typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46710101111109754
Data source: Prague 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 Prague Compares to Other Months

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

This table compares monthly weather conditions in Prague, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (40°F)61 mm (2.4 inches)79%moderate
February Weather5°C (42°F)63 mm (2.5 inches)78%high
March Weather12°C (55°F)89 mm (3.5 inches)75%high
April Weather15°C (60°F)171 mm (6.7 inches)75%very high
May Weather21°C (70°F)149 mm (5.9 inches)83%very high
June Weather26°C (79°F)100 mm (3.9 inches)81%extreme
July Weather28°C (83°F)81 mm (3.2 inches)78%extreme
August Weather27°C (81°F)68 mm (2.7 inches)68%very high
September Weather24°C (76°F)92 mm (3.6 inches)64%very high
October Weather17°C (63°F)121 mm (4.8 inches)71%high
November Weather11°C (51°F)43 mm (1.7 inches)82%moderate
December Weather7°C (45°F)37 mm (1.5 inches)87%moderate

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