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January Weather in Trnov, Czech Republic

Last updated: August 23, 2025

In January, the average temperature in Trnov, Czech Republic hovers around -1°C (30°F). Expect chilly days, with minimums plunging to -24°C (-10°F) and maximums reaching a mild 11°C (52°F). Be prepared for some wet weather, as precipitation averages 54 mm (2.1 in) over 12 days. With an average humidity of 89%, the air will feel quite brisk!

January Temperature in Trnov

In January in Trnov, the average temperature is -1°C (30°F). Maximum can reach 11°C (52°F) and minimum can be as low as -24°C (-10°F). It's essential to pack warm clothing if you're planning to visit during this time.

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

The chart illustrates January temperature patterns in Trnov, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Trnov, January typically has an average temperature of -1°C (30°F), with highs reaching up to 11°C (52°F) and lows dropping to around -24°C (-10°F).
JanFebMarAprMayJunJulAugSepOctNovDec293338465464646657494034
Data source: Temperature data for Trnov 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.

January Precipitation in Trnov

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

January Precipitation Trends in Trnov

The chart displays monthly precipitation patterns in Trnov, 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 Trnov, January typically receives around 54 mm (2.1 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec545758419290879083754569
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Trnov

In Trnov in January humidity is 89%. With an average temperature of -1°C (30°F), this humidity feels like a biting chill that wraps around you, making outdoor travel uncomfortable and brisk, as the cold air sharpens the dampness, leaving you feeling colder than the thermometer suggests.

January Average Humidity in Trnov

This chart illustrates the average monthly humidity levels in Trnov, 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 Trnov is approximately 89%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%87%84%78%63%63%61%65%72%80%87%91%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Trnov

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

Maximum UV Index Levels in Trnov for January

The chart shows the monthly maximum UV Index (UVI) for Trnov 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 Trnov typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec234678876421
Data source: Trnov 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 Trnov Compares to Other Months

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

This table compares monthly weather conditions in Trnov, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)54 mm (2.1 inches)89%low
February Weather1°C (33°F)57 mm (2.2 inches)87%moderate
March Weather3°C (38°F)58 mm (2.3 inches)84%moderate
April Weather8°C (47°F)41 mm (1.6 inches)78%high
May Weather12°C (54°F)92 mm (3.6 inches)63%high
June Weather18°C (64°F)90 mm (3.5 inches)63%very high
July Weather18°C (65°F)87 mm (3.4 inches)61%very high
August Weather19°C (66°F)90 mm (3.5 inches)65%high
September Weather14°C (57°F)83 mm (3.3 inches)72%high
October Weather10°C (49°F)74 mm (2.9 inches)80%moderate
November Weather5°C (41°F)45 mm (1.8 inches)87%low
December Weather1°C (34°F)69 mm (2.7 inches)91%low

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