Last updated: August 23, 2025
In Mastov, Czech Republic, the average temperature in December hovers around 1°C (34°F). Expect chilly conditions, with minimums plummeting to -9°C (16°F) and highs reaching up to 11°C (52°F). This period sees an average precipitation of 56 mm (2.2 in) spread across 13 days, contributing to a high average humidity of 92%. Dress warmly and prepare for damp days!
In December in Mastov, the average temperature is 1°C (34°F), with maximums reaching 11°C (52°F) and minimums dipping as low as -9°C (16°F). Travelers should be prepared for a chilly climate and pack warm layers to stay comfortable during their visit.
In Mastov in December, the precipitation amount is 56 mm (2.2 in) over the course of 13 days.
In Mastov 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 Mastov 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 Mastov.
UV Risk Categories
Weather in Mastov varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Mastov, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 0°C (32°F) | 46 mm (1.8 inches) | 90% | low |
| February Weather | 1°C (33°F) | 45 mm (1.8 inches) | 89% | moderate |
| March Weather | 3°C (38°F) | 51 mm (2.0 inches) | 87% | moderate |
| April Weather | 8°C (46°F) | 36 mm (1.4 inches) | 81% | high |
| May Weather | 12°C (54°F) | 77 mm (3.0 inches) | 71% | very high |
| June Weather | 18°C (64°F) | 71 mm (2.8 inches) | 75% | very high |
| July Weather | 18°C (65°F) | 70 mm (2.7 inches) | 74% | very high |
| August Weather | 18°C (65°F) | 83 mm (3.3 inches) | 76% | high |
| September Weather | 14°C (57°F) | 58 mm (2.3 inches) | 81% | high |
| October Weather | 9°C (49°F) | 55 mm (2.1 inches) | 85% | moderate |
| November Weather | 4°C (39°F) | 34 mm (1.3 inches) | 88% | low |
| December Weather | 1°C (34°F) | 56 mm (2.2 inches) | 92% | low |