Last updated: August 27, 2025
In Iwaniska, Poland, the average temperature in December hovers around 1°C (34°F), with temperatures dipping as low as -14°C (6°F) and soaring up to 14°C (57°F). Expect 48 mm (1.9 in) of precipitation over about 11 days, contributing to an average humidity of a notable 91%. Stay prepared for a chilly and damp month!
In December in Iwaniska, the average temperature is 1°C (34°F). Maximums can reach 14°C (57°F), while minimums can plunge as low as -14°C (6°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.
In Iwaniska in December, the precipitation amount is 48 mm (1.9 in) over a span of 11 days.
In Iwaniska in December, humidity is 91%. With an average temperature of 1°C (34°F), this humidity feels like an icy embrace, making traveling quite challenging as the air feels heavy and damp, leaving everything damp and cold, and requiring extra layers for comfort.
In Iwaniska 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 Iwaniska.
UV Risk Categories
Weather in Iwaniska varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Iwaniska, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -1°C (30°F) | 36 mm (1.4 inches) | 91% | low |
| February Weather | 0°C (33°F) | 44 mm (1.7 inches) | 89% | low |
| March Weather | 4°C (39°F) | 39 mm (1.5 inches) | 86% | moderate |
| April Weather | 9°C (48°F) | 59 mm (2.3 inches) | 76% | high |
| May Weather | 13°C (57°F) | 94 mm (3.7 inches) | 58% | high |
| June Weather | 19°C (67°F) | 75 mm (2.9 inches) | 56% | very high |
| July Weather | 20°C (67°F) | 99 mm (3.9 inches) | 56% | very high |
| August Weather | 20°C (67°F) | 109 mm (4.3 inches) | 55% | high |
| September Weather | 15°C (59°F) | 83 mm (3.3 inches) | 68% | high |
| October Weather | 10°C (50°F) | 72 mm (2.8 inches) | 84% | moderate |
| November Weather | 5°C (41°F) | 40 mm (1.6 inches) | 89% | low |
| December Weather | 1°C (34°F) | 48 mm (1.9 inches) | 91% | low |