Last updated: August 27, 2025
In Simon, Romania, the average temperature in December hovers around -1°C (30°F). During this time, temperatures can dip to a chilling -22°C (-7°F) or rise to a mild 12°C (53°F). Expect about 75 mm (3.0 in) of precipitation spread over 13 days, contributing to an average humidity of 88%. Stay warm and prepared for the diverse weather conditions!
In December in Simon, the average temperature is -1°C (30°F), with maximums reaching 12°C (53°F) and minimums dropping to as low as -22°C (-7°F). This range makes it essential for travelers to prepare for chilly conditions and pack accordingly for both mild days and frigid nights.
In Simon in December, the precipitation amount is 75 mm (3.0 in) over the course of 13 days.
In Simon in December humidity is 88%. With an average temperature of -1°C (30°F), this humidity feels like a biting chill that penetrates through your layers, making travel uncomfortable as every gust of wind becomes a sharp reminder of the cold and damp air surrounding you.
In Simon 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 Simon, you can visit Hourly UV Index in Simon.
UV Risk Categories
Weather in Simon varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Simon, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -5°C (24°F) | 40 mm (1.6 inches) | 88% | low |
| February Weather | -2°C (29°F) | 45 mm (1.8 inches) | 85% | moderate |
| March Weather | 1°C (34°F) | 68 mm (2.7 inches) | 82% | high |
| April Weather | 6°C (44°F) | 55 mm (2.2 inches) | 73% | high |
| May Weather | 11°C (53°F) | 141 mm (5.5 inches) | 71% | very high |
| June Weather | 16°C (60°F) | 152 mm (6.0 inches) | 70% | very high |
| July Weather | 17°C (63°F) | 139 mm (5.5 inches) | 66% | very high |
| August Weather | 18°C (64°F) | 117 mm (4.6 inches) | 48% | very high |
| September Weather | 13°C (56°F) | 56 mm (2.2 inches) | 57% | high |
| October Weather | 8°C (47°F) | 60 mm (2.4 inches) | 79% | moderate |
| November Weather | 4°C (39°F) | 42 mm (1.7 inches) | 87% | moderate |
| December Weather | -1°C (30°F) | 75 mm (3.0 inches) | 88% | low |