Last updated: August 22, 2025
In December, the average temperature in Omarska, Bosnia and Herzegovina hovers around 4°C (39°F), with a minimum dipping as low as -8°C (18°F) and a peak reaching up to 18°C (64°F). Expect around 87 mm (3.4 in) of precipitation spread over about 12 days, contributing to an average humidity level of 88%. Prepare for a chilly yet invigorating month!
In December in Omarska, the average temperature is 4°C (39°F). The maximum can reach 18°C (64°F), and the minimum can be as low as -8°C (18°F). Travelers should be prepared for chilly weather while also enjoying the possibility of mild days during this month.
In Omarska in December, the precipitation amount is 87 mm (3.4 in) over the course of 12 days.
In Omarska in December, humidity is 88%. With an average temperature of 4°C (39°F), this humidity feels like a damp chill that seeps into your bones, making travel uncomfortable and necessitating extra layers to stay warm.
In Omarska 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 Omarska, you can visit Hourly UV Index in Omarska.
UV Risk Categories
Weather in Omarska varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Omarska, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 1°C (34°F) | 56 mm (2.2 inches) | 89% | low |
| February Weather | 5°C (41°F) | 68 mm (2.7 inches) | 83% | moderate |
| March Weather | 7°C (45°F) | 62 mm (2.4 inches) | 75% | moderate |
| April Weather | 12°C (54°F) | 78 mm (3.1 inches) | 72% | high |
| May Weather | 16°C (62°F) | 117 mm (4.6 inches) | 70% | very high |
| June Weather | 21°C (71°F) | 99 mm (3.9 inches) | 69% | very high |
| July Weather | 23°C (73°F) | 97 mm (3.8 inches) | 64% | very high |
| August Weather | 23°C (74°F) | 76 mm (3.0 inches) | 51% | very high |
| September Weather | 18°C (64°F) | 75 mm (3.0 inches) | 62% | high |
| October Weather | 13°C (55°F) | 90 mm (3.5 inches) | 81% | moderate |
| November Weather | 8°C (46°F) | 72 mm (2.8 inches) | 87% | moderate |
| December Weather | 4°C (39°F) | 87 mm (3.4 inches) | 88% | low |