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December Weather in Trnovo, Bosnia and Herzegovina

Last updated: August 22, 2025

In December, the average temperature in Trnovo, Bosnia and Herzegovina hovers around 0°C (33°F), with a minimum that can dip as low as -15°C (4°F) and a maximum reaching up to 13°C (56°F). Visitors can expect approximately 144 mm (5.7 in) of precipitation over 17 days, while the air remains quite moist with an average humidity of 86%.

December Temperature in Trnovo

In December in Trnovo, the average temperature is 0°C (33°F). Maximum temperatures can reach 13°C (56°F), while minimums can drop as low as -15°C (4°F). Travelers should be prepared for chilly weather and pack accordingly to enjoy their visit comfortably.

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

The chart illustrates December temperature patterns in Trnovo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Trnovo, December typically has an average temperature of 0°C (33°F), with highs reaching up to 13°C (56°F) and lows dropping to around -15°C (4°F).
JanFebMarAprMayJunJulAugSepOctNovDec273438465461656658494233
Data source: Temperature data for Trnovo 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 Trnovo

In Trnovo in December, the precipitation amount is 144 mm (5.7 in) over the course of 17 days.

December Precipitation Trends in Trnovo

The chart displays monthly precipitation patterns in Trnovo, 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 Trnovo, December typically receives around 144 mm (5.7 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec799910110012912911081597996144
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Trnovo

In Trnovo in December humidity is 86%. With an average temperature of 0°C (33°F), this humidity feels like a damp chill that permeates your clothes, making traveling uncomfortable and necessitating warm, layered clothing to stay dry and cozy.

December Average Humidity in Trnovo

This chart illustrates the average monthly humidity levels in Trnovo, 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 Trnovo is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%82%79%75%74%66%59%53%65%78%85%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Trnovo

In Trnovo in December, 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 Trnovo, you can visit Hourly UV Index in Trnovo.

Maximum UV Index Levels in Trnovo for December

The chart shows the monthly maximum UV Index (UVI) for Trnovo 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 Trnovo typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34789101097532
Data source: Trnovo 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 Trnovo Compares to Other Months

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

This table compares monthly weather conditions in Trnovo, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)79 mm (3.1 inches)88%moderate
February Weather1°C (34°F)99 mm (3.9 inches)82%moderate
March Weather3°C (38°F)101 mm (4.0 inches)79%high
April Weather8°C (46°F)100 mm (3.9 inches)75%very high
May Weather12°C (54°F)129 mm (5.1 inches)74%very high
June Weather16°C (62°F)129 mm (5.1 inches)66%very high
July Weather18°C (65°F)110 mm (4.3 inches)59%very high
August Weather19°C (66°F)81 mm (3.2 inches)53%very high
September Weather14°C (58°F)59 mm (2.3 inches)65%high
October Weather9°C (49°F)79 mm (3.1 inches)78%moderate
November Weather6°C (42°F)95 mm (3.8 inches)85%moderate
December Weather0°C (33°F)144 mm (5.7 inches)86%low

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