Rome weather in January
In January, Rome has an average high of 12 °C54 °F and an average low of 4 °C40 °F, with about 73 mm2.9 in of precipitation. January is the coldest month of the year and ranks 5th for precipitation.
How January compares with other months
Compared with December, January is 1.1 °C2 °F cooler on average and drier by 19 mm0.7 in. Compared with February, January is 0.5 °C1 °F cooler on average. Daylight lasts about 9.4 hours around the middle of the month. Average relative humidity is 81% and the average cloud amount 60%.
Is January a good time to visit Rome?
January is not among the most comfortable months by our comfort score: it is cool (average high 12 °C54 °F), nights are cold (average low 4 °C40 °F) and it is fairly wet (73 mm2.9 in). The most comfortable months in Rome are April–June and September and October.
What to wear in January
For Rome in January, pack long sleeves, a sweater and a medium jacket.
January in nearby places
| Place | High °C°F | Low °C°F | Precip. mmin |
|---|---|---|---|
| Rome | 1254 | 440 | 732.9 |
| Terni | 1151 | 236 | 652.6 |
| Perugia | 745 | 032 | 632.5 |
| Pescara | 1253 | 948 | 863.4 |
| Arezzo | 846 | 134 | 602.4 |
| Naples | 1254 | 642 | 883.5 |
| San Marino | 541 | 033 | 552.2 |
| Salerno | 1355 | 745 | 873.4 |
| Florence | 948 | 236 | 552.2 |
Nearby places that are more than 1 °C1.8 °F warmer in January: Pescara and Salerno; cooler: Terni, Perugia, Arezzo and San Marino.
Other months in Rome
- January12 °C54 °F / 4 °C40 °F
- February13 °C55 °F / 4 °C40 °F
- March16 °C61 °F / 7 °C44 °F
- April20 °C68 °F / 10 °C50 °F
- May24 °C76 °F / 14 °C57 °F
- June30 °C85 °F / 18 °C65 °F
- July33 °C92 °F / 21 °C70 °F
- August33 °C92 °F / 21 °C71 °F
- September28 °C82 °F / 17 °C63 °F
- October23 °C74 °F / 14 °C56 °F
- November18 °C64 °F / 10 °C49 °F
- December13 °C56 °F / 5 °C42 °F
Frequently asked questions
How warm is Rome in January?
In January the average high in Rome is 12 °C (54 °F) and the average low is 4 °C (40 °F).
Does it rain a lot in Rome in January?
On average about 73 mm (2.9 in) of precipitation falls in January; it ranks 5th of the 12 months.
Is January the warmest month in Rome?
No. The warmest month in Rome is August, with an average high of 33 °C (92 °F). The coldest month is January, with an average low of 4 °C (40 °F).
How long is the day in Rome in January?
In the middle of January the day in Rome lasts about 9.4 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Rome in January?
The average relative humidity in January is about 81%. This is a long-term average for the whole day.
How cloudy is Rome in January?
On average about 60% of the sky is covered by cloud in January. This is the mean cloud amount from satellite data, not the number of sunny days.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 198 m, while Rome lies at about 20 m. Temperatures on this page were therefore adjusted by +1.2 °C2.1 °F using the standard lapse rate of 6.5 °C per 1,000 m.