Last updated: August 27, 2025
In December, the average temperature in Mastacan, Romania hovers around 0°C (33°F). Prepare for chilly days as temperatures can dip to a biting -21°C (-5°F), while the mercury may rise to a pleasant 14°C (58°F) at times. With an average humidity of 90%, the air can feel crisp and damp. Expect 58 mm (2.3 in) of precipitation spread over 11 days, so don’t forget your umbrella!
In December in Mastacan, the average temperature is 0°C (33°F), with maximums reaching 14°C (58°F) and minimums dipping as low as -21°C (-5°F). Travelers should be prepared for a wide range of temperatures and pack accordingly for both cold and mild weather.
In Mastacan in December, the precipitation amount is 58 mm (2.3 in) over the course of 11 days.
In Mastacan in December humidity is 90%. With average temperature 0°C (33°F) this humidity feels like a damp chill that clings to your skin, making every step outside feel heavier and more exhausting for traveling.
In Mastacan in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Mastacan, you can visit Hourly UV Index in Mastacan.
UV Risk Categories
Weather in Mastacan varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Mastacan, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -2°C (28°F) | 29 mm (1.1 inches) | 92% | low |
| February Weather | 0°C (33°F) | 43 mm (1.7 inches) | 88% | moderate |
| March Weather | 3°C (38°F) | 49 mm (1.9 inches) | 86% | moderate |
| April Weather | 9°C (48°F) | 50 mm (2.0 inches) | 79% | high |
| May Weather | 14°C (57°F) | 84 mm (3.3 inches) | 73% | very high |
| June Weather | 18°C (65°F) | 134 mm (5.3 inches) | 73% | very high |
| July Weather | 19°C (67°F) | 102 mm (4.0 inches) | 68% | very high |
| August Weather | 20°C (68°F) | 73 mm (2.9 inches) | 56% | very high |
| September Weather | 15°C (60°F) | 50 mm (2.0 inches) | 62% | high |
| October Weather | 10°C (50°F) | 38 mm (1.5 inches) | 80% | moderate |
| November Weather | 4°C (40°F) | 34 mm (1.4 inches) | 89% | moderate |
| December Weather | 0°C (33°F) | 58 mm (2.3 inches) | 90% | low |