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December Weather in Gacko, Bosnia and Herzegovina

Last updated: August 22, 2025

In Gacko, Bosnia and Herzegovina, the average temperature in December hovers around 2°C (35°F). Temperatures can fluctuate significantly, with a minimum of -12°C (11°F) and a maximum reaching 12°C (54°F). Expect 216 mm (8.5 in) of precipitation over approximately 16 days, contributing to an average humidity level of 86%.

December Temperature in Gacko

In December in Gacko, the average temperature is 2°C (35°F). Maximum can reach 12°C (54°F) and minimum can be as low as -12°C (11°F). Be prepared for cold weather and dress in layers when traveling to Gacko during this time.

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

The chart illustrates December temperature patterns in Gacko, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Gacko, December typically has an average temperature of 2°C (35°F), with highs reaching up to 12°C (54°F) and lows dropping to around -12°C (11°F).
JanFebMarAprMayJunJulAugSepOctNovDec303640475563676860514435
Data source: Temperature data for Gacko 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 Gacko

In Gacko in December, the precipitation amount is 216 mm (8.5 in) over the course of 16 days.

December Precipitation Trends in Gacko

The chart displays monthly precipitation patterns in Gacko, 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 Gacko, December typically receives around 216 mm (8.5 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec11015314111813295715886110197216
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Gacko

In Gacko in December humidity is 86%. With an average temperature of 2°C (35°F), this humidity feels like a damp chill that seeps into your bones, making traveling quite uncomfortable as your clothes cling to you and the cold air cuts through any warmth you try to find.

December Average Humidity in Gacko

This chart illustrates the average monthly humidity levels in Gacko, 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 Gacko 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 Gacko

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

Maximum UV Index Levels in Gacko for December

The chart shows the monthly maximum UV Index (UVI) for Gacko 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 Gacko typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24779101098632
Data source: Gacko 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 Gacko Compares to Other Months

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

This table compares monthly weather conditions in Gacko, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)110 mm (4.3 inches)88%low
February Weather2°C (36°F)153 mm (6.0 inches)82%moderate
March Weather4°C (40°F)141 mm (5.6 inches)79%high
April Weather8°C (47°F)118 mm (4.7 inches)75%high
May Weather13°C (55°F)132 mm (5.2 inches)74%very high
June Weather17°C (63°F)95 mm (3.8 inches)66%very high
July Weather19°C (67°F)71 mm (2.8 inches)59%very high
August Weather20°C (69°F)58 mm (2.3 inches)53%very high
September Weather15°C (60°F)86 mm (3.4 inches)65%very high
October Weather10°C (51°F)110 mm (4.3 inches)78%high
November Weather6°C (44°F)197 mm (7.7 inches)85%moderate
December Weather2°C (35°F)216 mm (8.5 inches)86%low

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