Rome records about 798mm of rain across roughly 79 wet days a year, which is a 22% chance on an average day. November is the wettest month at 115mm (14% of the annual total) and July the driest at 19mm. Local rain type: steady rain. Essential from October through February. Summer visitors can usually leave the umbrella at the hotel. Autumn rain can be persistent — pack a proper waterproof.
Chance of rain on an average day: 22%
Rainfall climatology for Rome. The live hour-by-hour answer for today loads at the top of this page from Open-Meteo and refreshes through the day — the figures below describe a typical year, not today.
Last updated: · Live forecast data refreshes hourly.
| Annual rainfall | 798mm |
| Rain days per year | 79 |
| Odds on an average day | 22% |
| Wettest month | November — 115mm over 12 days |
| Driest month | July — 19mm over 2 days |
| Rain type | steady rain |
| Best dry window | June through August is reliably dry with long, hot days perfect for outdoor sightseeing. |
| Worst rain window | November is the wettest month with persistent rain that can last several days. |
November delivers 505% more rain than July (115mm vs 19mm). That gap is the difference between planning around showers and ignoring them.
No single month holds more than 14% of the annual total, so rain in Rome is spread through the year — there is no season you can rely on being dry.
Rome rain typically comes as discrete showers, so a compact umbrella and a flexible plan are usually enough.
Rain falls on about 12 days in November against 2 in July — the frequency swing matters more for planning than the millimetre totals.
Climate normals. Use them to judge whether today's live forecast at the top of the page is typical or unusual for the season.
| Month | Rainfall | Rain days | Chance on a given day | Highs |
|---|---|---|---|---|
| January | 67mm | 7 | 23% | 12°C |
| February | 73mm | 8 | 27% | 12°C |
| March | 58mm | 6 | 20% | 15°C |
| April | 62mm | 6 | 20% | 19°C |
| May | 48mm | 5 | 17% | 25°C |
| June | 34mm | 4 | 13% | 29°C |
| July | 19mm | 2 | 7% | 32°C |
| August | 37mm | 4 | 13% | 32°C |
| September | 73mm | 8 | 27% | 29°C |
| October | 94mm | 10 | 33% | 25°C |
| November | 115mm | 12 | 40% | 19°C |
| December | 81mm | 8 | 27% | 15°C |
Rain probability is the chance that at least 0.2mm falls at your location — not how long it rains. For Rome we combine the hourly probability curve, expected volume in millimetres, and the city's own rainfall record into a single umbrella verdict.
| Factor | Weight | What it measures |
|---|---|---|
| Hourly probability | 40% | Peak and sustained chance of measurable rain across the next 24 hours. |
| Expected volume | 30% | Total millimetres, which separates a passing shower from a genuine soaking. |
| Timing & duration | 20% | When rain starts, when it eases, and the longest continuous dry window. |
| Local rain type | 10% | Drizzle, brief showers, thunderstorms or monsoon — each needs different gear. |
Live hourly values come from Open-Meteo and refresh through the day. Monthly rainfall figures are climate normals, so they describe a typical year rather than a forecast.
Rome records rain on roughly 79 days a year — about a 22% chance on any given day — totalling around 798mm.
November, with about 115mm over 12 rain days. That is 14% of the entire year's rainfall in a single month.
July is the driest month at 19mm across roughly 2 days. June through August is reliably dry with long, hot days perfect for outdoor sightseeing.
Essential from October through February. Summer visitors can usually leave the umbrella at the hotel. Autumn rain can be persistent — pack a proper waterproof.
No. Probability is the chance that at least 0.2mm of rain falls at your location at some point in the period. Check the expected millimetres alongside it: 40% with 0.4mm is a passing shower, 40% with 12mm is a soaking.