Last updated: August 27, 2025
In Sierakow Slaski, Poland, the average temperature in December hovers around 2°C (35°F), with extremes ranging from a chilly -13°C (9°F) to a milder 15°C (60°F). Expect 57 mm (2.2 in) of precipitation spread over 12 days, contributing to a notably high average humidity of 92%. Be prepared for a damp and cool atmosphere!
In December in Sierakow Slaski, the average temperature is 2°C (35°F). Maximum temperatures can reach 15°C (60°F), while the minimum can drop as low as -13°C (9°F). Be sure to pack warm clothing if you're planning to visit during this time!
In Sierakow Slaski in December, the precipitation amount is 57 mm (2.2 in) over a span of 12 days.
In Sierakow Slaski in December humidity is 92%. With an average temperature of 2°C (35°F), this humidity feels like a damp, chilling fog that clings to your skin, making outdoor activities uncomfortable and travel challenging as you navigate through the heavy, cold air.
In Sierakow Slaski 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 Slaski.
UV Risk Categories
Weather in Sierakow Slaski varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Sierakow Slaski, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 0°C (32°F) | 41 mm (1.6 inches) | 90% | low |
| February Weather | 1°C (34°F) | 49 mm (1.9 inches) | 88% | low |
| March Weather | 4°C (40°F) | 45 mm (1.8 inches) | 86% | moderate |
| April Weather | 9°C (49°F) | 53 mm (2.1 inches) | 79% | moderate |
| May Weather | 14°C (57°F) | 87 mm (3.4 inches) | 65% | high |
| June Weather | 20°C (68°F) | 82 mm (3.2 inches) | 66% | very high |
| July Weather | 20°C (68°F) | 78 mm (3.1 inches) | 67% | very high |
| August Weather | 20°C (69°F) | 83 mm (3.3 inches) | 67% | high |
| September Weather | 15°C (60°F) | 81 mm (3.2 inches) | 72% | high |
| October Weather | 11°C (52°F) | 68 mm (2.7 inches) | 83% | moderate |
| November Weather | 6°C (43°F) | 39 mm (1.6 inches) | 90% | low |
| December Weather | 2°C (35°F) | 57 mm (2.2 inches) | 92% | low |