Last updated: August 27, 2025
In December, the average temperature in Kostomloty, Poland hovers around 1°C (34°F), bringing with it a mix of chilly days. You can expect minimum temperatures to dip as low as -13°C (9°F), while the mercury may rise to a pleasant 12°C (54°F) on the warmer days. With 52 mm (2.1 in) of precipitation spread over 12 days, be prepared for some rainy spells. Don't forget to bring a coat; the average humidity is a high 92%, ensuring a moist atmosphere.
In December in Kostomloty, the average temperature is 1°C (34°F). Maximums can reach 12°C (54°F) and minimums can be as low as -13°C (9°F). Be prepared for cold weather and pack accordingly if you're planning to travel during this time.
In Kostomloty in December, the precipitation amount is 52 mm (2.1 in) occurring over a span of 12 days.
In Kostomloty in December humidity is 92%. With average temperature 1°C (34°F), this humidity feels like a cold, damp blanket enveloping you, making travel uncomfortable as the chill seeps into your bones, and the air feels heavy and suffocating, leaving little room for any warmth or comfort.
In Kostomloty 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 Kostomloty.
UV Risk Categories
Weather in Kostomloty varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Kostomloty, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -2°C (30°F) | 42 mm (1.7 inches) | 92% | low |
| February Weather | 0°C (32°F) | 43 mm (1.7 inches) | 89% | low |
| March Weather | 3°C (38°F) | 40 mm (1.6 inches) | 87% | moderate |
| April Weather | 8°C (47°F) | 47 mm (1.8 inches) | 77% | high |
| May Weather | 14°C (57°F) | 88 mm (3.5 inches) | 62% | high |
| June Weather | 20°C (67°F) | 82 mm (3.2 inches) | 61% | very high |
| July Weather | 20°C (68°F) | 85 mm (3.4 inches) | 60% | very high |
| August Weather | 19°C (67°F) | 88 mm (3.5 inches) | 60% | high |
| September Weather | 15°C (58°F) | 68 mm (2.7 inches) | 70% | high |
| October Weather | 10°C (50°F) | 63 mm (2.5 inches) | 86% | moderate |
| November Weather | 5°C (41°F) | 36 mm (1.4 inches) | 90% | low |
| December Weather | 1°C (34°F) | 52 mm (2.1 inches) | 92% | low |