Last updated: June 24, 2025
In January, the average temperature in Rome, United States is a crisp -7°C (19°F). While it can plunge to a chilly -32°C (-26°F), temperatures may rise to a milder 8°C (47°F). Expect a total precipitation of 38 mm (1.5 in) spread over 6 days, and stay prepared for high humidity levels averaging at 89%.
In January in Rome, the average temperature is -7°C (19°F), with maximums reaching 8°C (47°F) and minimums dropping as low as -32°C (-26°F). Travelers should be prepared for extremely cold conditions and dress warmly to enjoy their visit.
In Rome in January, the total precipitation amount is 38 mm (1.5 in) spread over 6 days.
In Rome in January humidity is 89%. With an average temperature of -7°C (19°F), this humidity feels like an icy mist clinging to your skin, making travel uncomfortable as each breath brings in a sharp chill that bites through layers of clothing.
In Rome in January, 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 Rome, you can visit Hourly UV Index in Rome.
UV Risk Categories
Weather in Rome varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Rome, focusing on differences in temperature, rainfall, humidity, and UV levels.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | -7°C (19°F) | 38 mm (1.5 inches) | 89% | low |
February Weather | -7°C (19°F) | 52 mm (2.0 inches) | 90% | moderate |
March Weather | 1°C (33°F) | 61 mm (2.4 inches) | 87% | moderate |
April Weather | 6°C (44°F) | 95 mm (3.7 inches) | 84% | very high |
May Weather | 14°C (58°F) | 112 mm (4.4 inches) | 77% | very high |
June Weather | 20°C (69°F) | 108 mm (4.3 inches) | 75% | very high |
July Weather | 23°C (73°F) | 116 mm (4.6 inches) | 74% | very high |
August Weather | 21°C (70°F) | 124 mm (4.9 inches) | 73% | very high |
September Weather | 17°C (63°F) | 106 mm (4.2 inches) | 78% | high |
October Weather | 9°C (49°F) | 106 mm (4.2 inches) | 84% | moderate |
November Weather | 1°C (34°F) | 51 mm (2.0 inches) | 89% | moderate |
December Weather | -4°C (26°F) | 49 mm (1.9 inches) | 87% | low |