Spring (April–June) and fall (September–October) offer the most comfortable weather — mild temperatures, longer daylight hours, and manageable crowds. July and August are peak summer: temperatures regularly exceed 95°F, streets are packed with tourists, and many local Romans leave the city. Winter (December–February) is cool and uncrowded, with the best hotel deals; Christmas and New Year bring festive decorations and special Masses at the Vatican. If you visit in summer, book Vatican and Colosseum tickets weeks in advance and plan outdoor sightseeing for early morning.
| Month | High (°F) | Low (°F) | Notes |
|---|---|---|---|
| Jan | 53 | 38 | cool & changeable |
| Feb | 55 | 39 | cool & changeable |
| Mar | 60 | 42 | cool & changeable |
| Apr | 66 | 48 | mild & changeable |
| May | 73 | 55 | warm & changeable |
| Jun | 82 | 62 | warm & mostly dry |
| Jul | 88 | 68 | hot & mostly dry |
| Aug | 88 | 68 | hot & mostly dry |
| Sep | 79 | 62 | warm & changeable |
| Oct | 71 | 56 | mild & changeable |
| Nov | 62 | 48 | mild & changeable |
| Dec | 55 | 41 | cool & changeable |