Last updated: August 27, 2025
In December, the average temperature in Roma, Sweden hovers around 2°C (36°F). Be prepared for chilly conditions, as temperatures can dip to a frigid -13°C (9°F) and peak at a mild 9°C (49°F). Expect about 51 mm (2.0 in) of precipitation spread over 12 days, accompanied by a notable average humidity of 82%.
In December in Roma, the average temperature is 2°C (36°F). Maximums can reach 9°C (49°F), and minimums can be as low as -13°C (9°F). Be prepared for chilly weather and pack layers to ensure a comfortable trip.
In Roma in December, the precipitation amount is 51 mm (2.0 in) spread over 12 days.
In Roma in December humidity is 82%. With an average temperature of 2°C (36°F), this humidity feels like a damp chill that clings to your skin, making even brief outings feel uncomfortable and penetrating.
In Roma 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 Roma.
UV Risk Categories
Weather in Roma varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Roma, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 1°C (34°F) | 40 mm (1.6 inches) | 86% | low |
| February Weather | 1°C (34°F) | 37 mm (1.5 inches) | 85% | low |
| March Weather | 2°C (37°F) | 43 mm (1.7 inches) | 87% | moderate |
| April Weather | 6°C (43°F) | 22 mm (0.9 inches) | 87% | moderate |
| May Weather | 11°C (52°F) | 38 mm (1.5 inches) | 84% | high |
| June Weather | 17°C (63°F) | 44 mm (1.7 inches) | 86% | high |
| July Weather | 18°C (65°F) | 81 mm (3.2 inches) | 85% | high |
| August Weather | 18°C (64°F) | 71 mm (2.8 inches) | 84% | high |
| September Weather | 14°C (57°F) | 57 mm (2.2 inches) | 83% | moderate |
| October Weather | 9°C (49°F) | 70 mm (2.7 inches) | 85% | low |
| November Weather | 6°C (43°F) | 53 mm (2.1 inches) | 85% | low |
| December Weather | 2°C (36°F) | 51 mm (2.0 inches) | 82% | low |