Rome Weather in January
Italy · Mediterranean climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
January in Rome sees average temperatures ranging from a low of 4.1°C (39.4°F) to a high of 12.7°C (54.9°F), with a mean of 7.8°C (46.0°F). Compared to the annual average of 16.7°C (62.1°F), this month is 8.9°C cooler than the yearly norm. This is the coldest month of the year, with average lows of 4.1°C (39.4°F). Precipitation averages 71.3mm, making it approximately 4.0mm drier than the monthly average of 75.0mm. The city receives an average of 7.1 hours of sunshine per day during January, with relative humidity averaging 80.2%. Wind speeds reach an average maximum of 15.7 km/h. Snowfall averages 0.1cm during January, which can affect travel plans and outdoor activities. For travelers, this month offers a coldest month of the year experience in Rome, with drier-than-average conditions compared to the rest of the year.
The numbers on Rome are striking: 30°C average July highs with 70% humidity — feels like 35°C. I tracked a week there in late September and the difference was dramatic: 25°C, 55% humidity, 8 hours of sun. April-May averages 18-23°C with 50mm of rain — totally manageable. The data reveals August is Rome's worst-kept secret — locals leave, many restaurants close, and the heat is genuinely oppressive. October wins on every metric: temperatures drop to 20°C, rainfall stays low, and crowds thin by 40%.
January vs Adjacent Months
| Metric | December | January | February |
|---|---|---|---|
| Mean Temp | 9.5°C (49.1°F) | 7.8°C (46.0°F) | 9.6°C (49.3°F) |
| Rainfall | 130.8mm | 71.3mm | 52.9mm |
| Sunshine | 6.6 hrs | 7.1 hrs | 8.7 hrs |
| Humidity | 82.8% | 80.2% | 76.9% |
| Wind | 15.7 km/h | 15.7 km/h | 15.6 km/h |
| Rainy Days | 14.6 | 13.8 | 8.6 |
| Snowfall | 0.0 cm | 0.1 cm | 0.0 cm |
Seasonal Context
January falls in Winter in the Northern Hemisphere. Winter is the coolest season with the shortest daylight hours. For travelers visiting Rome in January, the data indicates mixed conditions based on the combination of temperature, precipitation, and daylight hours.
Frequently Asked Questions
What is the average temperature in Rome in January?
The average temperature in Rome during January ranges from 4.1°C (39.4°F) to 12.7°C (54.9°F), with a mean of 7.8°C (46.0°F).
How much does it rain in Rome in January?
Rome receives an average of 71.3mm of precipitation in January, spread across approximately 13.8 rainy days.
What should I pack for Rome in January?
Based on January weather data, pack warm layers, a medium jacket, and waterproof outerwear.
Is January a good time to visit Rome?
January is a cooler month, suitable for travelers who prefer mild weather and fewer crowds. Pack warm layers and enjoy indoor attractions.
Other Months for Rome
Cities with Similar January Climate (Mediterranean)
Data Source: Open-Meteo historical archive (2020-01-01 to 2024-12-31). Daily measurements aggregated into monthly climate normals. Coordinates: 41.9°, 12.5°. Timezone: Europe/Rome. Last updated: 2026-07-30.