Weather in Rome in October
Italy · 20-year averages, October
Prime time. October is about as good as Rome gets. Highs average 23.6 °C, lows 14.1 °C, and rain falls on 10 days — nothing in the month is working against you.
October ranks 3 of 12 in Rome. Only April scores clearly higher, and the difference is small enough to be settled by price rather than weather.
Rain on 10 days, 3 of them heavy. Enough to need a plan B, not enough to need a plan around it. Nothing specialised needed — this is the month you pack for the trip rather than for the weather.
What the averages hide
Averages flatten a month, and this one hides a few things: it never really gets hot: not one day in an average October reaches 30 °C. Across the twenty years measured, the hottest October day reached 30.8 °C and the coldest night fell to 4.9 °C, and the wettest single day dropped 65 mm — roughly 79% of the month's rain in one day.
October is moderately variable: 4 mm in the driest year against 175 mm in the wettest, around an average of 82 mm. Roughly two Octobers in three land near that average, and the third does something else entirely.
Wind is light at 7.9 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 73%.
How October sits in the year
The month is on the way down: 4.6 °C cooler than September, with November dropping another 5.5 °C. The first week and the last are not the same trip.
Daylight in October
11.2 hours of daylight, losing 1.4 hours across the month. That is between Rome's extremes of 15.2 and 9.2 hours, so days are long enough not to constrain the plan.
Sea temperature
The sea sits at about 21.7 °C in October — comfortable for a proper swim. The sea peaks at 25.8 °C in August and bottoms out at 14 °C — water lags the air by a month or two, which is why the best swimming often comes after the best weather.
How busy it gets
Peak season. Expect the highest prices of the year and to be booking well ahead. If the dates are flexible, March is the trade worth considering — 12 points weaker on weather, and materially quieter.
Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.
October 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, the same number of rain days. Positano is close enough to be a coin toss — 2.2 °C cooler, 1 day more rain.
So: October is effectively as good as it gets here — 3 points behind April, which is inside the margin where the weather stops being the deciding factor and price starts being it.
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 |
See all twelve months in Rome, or where else to go in October.
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