Last updated: August 27, 2025
In December, the average temperature in Groseni, Romania hovers around 3°C (37°F). Expect chilly nights, with minimums dropping to -11°C (12°F), while daytime highs can reach up to 16°C (61°F). Be prepared for a wet month, as 91 mm (3.6 in) of precipitation typically falls over 14 days, accompanied by high average humidity levels of 92%.
In December in Groseni, the average temperature is 3°C (37°F). The maximum can reach 16°C (61°F) and the minimum can be as low as -11°C (12°F). Be prepared for a wide range of temperatures if you're planning to travel during this month.
In Groseni in December, the precipitation amount is 91 mm (3.6 in) over a span of 14 days.
In Groseni in December humidity is 92%. With an average temperature of 3°C (37°F), this humidity feels like a heavy blanket that clings to your skin, making every step feel laborious and the cold air seem even more biting, a challenging environment for traveling.
In Groseni 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 Groseni, you can visit Hourly UV Index in Groseni.
UV Risk Categories
Weather in Groseni varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Groseni, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -1°C (31°F) | 56 mm (2.2 inches) | 89% | low |
| February Weather | 3°C (38°F) | 68 mm (2.7 inches) | 87% | moderate |
| March Weather | 6°C (43°F) | 65 mm (2.6 inches) | 83% | moderate |
| April Weather | 11°C (52°F) | 55 mm (2.2 inches) | 75% | high |
| May Weather | 15°C (60°F) | 109 mm (4.3 inches) | 72% | very high |
| June Weather | 20°C (69°F) | 109 mm (4.3 inches) | 72% | very high |
| July Weather | 21°C (71°F) | 77 mm (3.0 inches) | 71% | very high |
| August Weather | 22°C (72°F) | 56 mm (2.2 inches) | 62% | very high |
| September Weather | 17°C (63°F) | 57 mm (2.2 inches) | 68% | high |
| October Weather | 12°C (54°F) | 53 mm (2.1 inches) | 84% | moderate |
| November Weather | 7°C (45°F) | 59 mm (2.3 inches) | 90% | moderate |
| December Weather | 3°C (37°F) | 91 mm (3.6 inches) | 92% | low |