Last updated: August 27, 2025
In December, the average temperature in Koscian, Poland hovers around 2°C (37°F). Temperatures can fluctuate significantly, with a minimum of -14°C (7°F) and a maximum of 13°C (56°F). Expect about 49 mm (1.9 in) of precipitation spread over 13 days, coupled with a high average humidity of 91%. Prepare accordingly for a chilly and damp month!
In December in Koscian, the average temperature is 2°C (37°F). The maximum can reach 13°C (56°F), while the minimum can drop to as low as -14°C (7°F). Be sure to pack warm clothing and prepare for chilly conditions if you're planning to travel then.
In Koscian in December, the precipitation amount is 49 mm (1.9 in) over the course of 13 days.
In Koscian in December, humidity is 91%. With an average temperature of 2°C (37°F), this humidity feels like a damp chill that seeps into your bones, making traveling uncomfortable and necessitating extra layers to stay warm and dry.
In Koscian in December, the maximum UV index is 1, which corresponds to a low Exposure Category. This means you have a time to burn of 45 minutes. For more details, you can check the Hourly UV Index in Koscian.
UV Risk Categories
Weather in Koscian varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Koscian, focusing on differences in temperature, rainfall, humidity, and UV levels.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | 1°C (34°F) | 44 mm (1.7 inches) | 89% | low |
February Weather | 2°C (36°F) | 44 mm (1.8 inches) | 87% | low |
March Weather | 5°C (41°F) | 41 mm (1.6 inches) | 84% | moderate |
April Weather | 9°C (49°F) | 34 mm (1.3 inches) | 78% | moderate |
May Weather | 14°C (57°F) | 64 mm (2.5 inches) | 63% | high |
June Weather | 20°C (68°F) | 62 mm (2.5 inches) | 63% | very high |
July Weather | 20°C (68°F) | 80 mm (3.1 inches) | 61% | very high |
August Weather | 20°C (69°F) | 68 mm (2.7 inches) | 65% | high |
September Weather | 16°C (60°F) | 56 mm (2.2 inches) | 72% | high |
October Weather | 11°C (52°F) | 61 mm (2.4 inches) | 80% | moderate |
November Weather | 6°C (43°F) | 40 mm (1.6 inches) | 87% | low |
December Weather | 2°C (37°F) | 49 mm (1.9 inches) | 91% | low |