Weather in Rome in July
Italy · 20-year averages, July
A good month. July is a solid month to be in Rome. Highs average 33.2 °C, lows 21.4 °C, and rain falls on 4 days — nothing in the month is working against you.
July ranks 8 of 12 in Rome: past the worst of the year but short of April, which is the month to book if the dates are open.
Rain falls on only 4 days, so an itinerary with no wet-weather fallback is a reasonable risk. Pack for 33.2 °C days and 21.4 °C nights; the spread matters more here than any single number.
What the averages hide
Averages flatten a month, and this one hides a few things: 9 days clear 35 °C, so a serious heatwave is normal rather than notable. Across the twenty years measured, the hottest July day reached 40.1 °C and the coldest night fell to 14.6 °C, and the wettest single day dropped 31 mm — roughly 119% of the month's rain in one day.
This is the volatile part. July rainfall has ranged from 0 mm to 77 mm across the twenty years measured — a 77 mm spread around an average of 26 mm. The average is real but almost no individual July looks like it, so treat the figure as the middle of a wide range rather than a forecast.
Wind is light at 8.1 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 55%.
How July sits in the year
Temperatures hold steady either side: 29.6 °C in June, 33.2 here, 33.5 in August. Nothing about the timing within the month matters much.
Daylight in July
July is at or near the longest days of Rome's year: 15 hours of daylight, losing 0.7 hours across the month. Evenings are the real gain — dinner outdoors still happens in full light.
Sea temperature
The sea sits at about 25.2 °C in July — warm enough to stay in as long as you like. This is the warmest the water gets all year.
How busy it gets
Shoulder. The value months — prices ease off and you get the place closer to itself.
Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.
July in Rome versus nearby
If Rome is one option among several, the nearby comparison is worth making. Naples is close enough to be a coin toss — within a degree on temperature, 1 day more rain. Positano is a better bet in July — 7 °C cooler, 1 day more rain.
So: July is a compromise. April is 19 points better and is what Rome is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.
Every month in Rome
| Month | High °C | Low °C | Rain days | Rain mm | Humidity % | Daylight h | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|
| January | 12.6 | 4.7 | 10 | 73 | 81 | 9.4 | 14.7 | 58 |
| February | 13.5 | 4.9 | 10 | 77 | 79 | 10.6 | 14 | 60 |
| March | 16.7 | 7.1 | 10 | 69 | 76 | 11.9 | 14.2 | 71 |
| April | 20.4 | 10.1 | 9 | 56 | 72 | 13.3 | 15.5 | 83 |
| May | 24.6 | 14 | 10 | 57 | 68 | 14.5 | 18.4 | 83 |
| June | 29.6 | 18.3 | 6 | 34 | 62 | 15.2 | 22.3 | 77 |
| July | 33.2 | 21.4 | 4 | 26 | 55 | 15 | 25.2 | 64 |
| August | 33.5 | 21.8 | 4 | 26 | 55 | 13.9 | 25.8 | 63 |
| September | 28.2 | 17.8 | 9 | 70 | 64 | 12.6 | 24.2 | 77 |
| October | 23.6 | 14.1 | 10 | 82 | 73 | 11.2 | 21.7 | 80 |
| November | 18.1 | 10.1 | 13 | 114 | 80 | 9.9 | 19 | 68 |
| December | 13.7 | 5.9 | 11 | 91 | 81 | 9.2 | 16.3 | 58 |
Planning the rest of the trip
- Flight time to Rome how long you are actually in the air
- Rome time zone and the difference from home
- Days until your trip count down to the departure date