Last updated: August 27, 2025
In December, the average temperature in Sierakow, Poland hovers around 2°C (37°F). While you might experience chilly nights with a minimum of -19°C (-2°F), daytime highs can reach up to 11°C (53°F). Expect about 48 mm (1.9 in) of precipitation over roughly 10 days, all accompanied by a notable average humidity of 92%. Stay prepared for a brisk, damp atmosphere!
In December in Sierakow, the average temperature is 2°C (37°F). The maximum can reach 11°C (53°F), and the minimum can be as low as -19°C (-2°F). Be prepared for chilly conditions and dress warmly if you plan to travel during this time.
In Sierakow in December, the precipitation amount is 48 mm (1.9 in) spread over a period of 10 days.
In Sierakow in December humidity is 92%. With an average temperature of 2°C (37°F), this humidity feels like a chilling embrace that clings to your skin, making every step feel heavier and wrapping you in a damp shroud, which can be quite uncomfortable for traveling.
In Sierakow 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 Sierakow.
UV Risk Categories
Weather in Sierakow varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Sierakow, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 1°C (34°F) | 54 mm (2.1 inches) | 90% | low |
| February Weather | 2°C (36°F) | 44 mm (1.7 inches) | 90% | low |
| March Weather | 4°C (40°F) | 49 mm (1.9 inches) | 87% | moderate |
| April Weather | 9°C (49°F) | 35 mm (1.4 inches) | 80% | moderate |
| May Weather | 14°C (57°F) | 62 mm (2.4 inches) | 67% | high |
| June Weather | 19°C (67°F) | 53 mm (2.1 inches) | 67% | very high |
| July Weather | 19°C (67°F) | 104 mm (4.1 inches) | 67% | high |
| August Weather | 20°C (68°F) | 55 mm (2.2 inches) | 67% | high |
| September Weather | 15°C (60°F) | 56 mm (2.2 inches) | 78% | moderate |
| October Weather | 11°C (52°F) | 62 mm (2.4 inches) | 84% | moderate |
| November Weather | 6°C (43°F) | 40 mm (1.6 inches) | 89% | low |
| December Weather | 2°C (37°F) | 48 mm (1.9 inches) | 92% | low |