Last updated: August 23, 2025
In December, the average temperature in Jirny, Czech Republic is a chilly 2°C (37°F), with minimums dipping to -7°C (19°F) and maximums reaching up to 12°C (53°F). Expect 50 mm (2.0 in) of precipitation over approximately 12 days, contributing to an average humidity level of a notable 92%.
In December in Jirny, the average temperature is 2°C (37°F). Maximum temperatures can reach 12°C (53°F), while minimum temperatures can drop as low as -7°C (19°F). Travelers should be prepared for chilly conditions and pack accordingly for varying temperatures.
In Jirny in December, the precipitation amount is 50 mm (2.0 in), occurring over the course of 12 days.
In Jirny 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 Jirny 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 Jirny.
UV Risk Categories
Weather in Jirny varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Jirny, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 1°C (33°F) | 38 mm (1.5 inches) | 91% | low |
| February Weather | 2°C (36°F) | 47 mm (1.8 inches) | 89% | low |
| March Weather | 5°C (41°F) | 47 mm (1.9 inches) | 87% | moderate |
| April Weather | 9°C (49°F) | 37 mm (1.5 inches) | 82% | high |
| May Weather | 14°C (57°F) | 85 mm (3.3 inches) | 76% | high |
| June Weather | 19°C (67°F) | 88 mm (3.5 inches) | 80% | very high |
| July Weather | 20°C (68°F) | 66 mm (2.6 inches) | 80% | very high |
| August Weather | 20°C (69°F) | 81 mm (3.2 inches) | 82% | high |
| September Weather | 15°C (60°F) | 61 mm (2.4 inches) | 82% | high |
| October Weather | 11°C (52°F) | 62 mm (2.4 inches) | 87% | moderate |
| November Weather | 6°C (42°F) | 40 mm (1.6 inches) | 89% | low |
| December Weather | 2°C (37°F) | 50 mm (2.0 inches) | 92% | low |