Italy
Rome in September: weather & travel advice
This month's data profile
Strong month under the current formula
Rome in September is climatically well suited to family holidays and city breaks. The average daily high is around 27 °C. With about 9 rainy days it is moderate.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
80/100 · #3
Warmth
#4
Dryness
#7
Sun
#6
Published best categories: Overall, Family
Rome · SeptemberPhoto: Krzysztof Golik · CC BY-SA 4.0Climate facts
- Average high
- 27 °C
- Average low
- 17 °C
- Rainy days (est.)
- 9 rainy days (est.)
- Sun (est.)
- 6 h/day
- Humidity
- 64 %
For your trip planning
September: less heat than August, drier than October
September in Rome counts among our best months overall. Its average daily high of 27 °C is five degrees below August and five above October. The catch is rain: 71 mm, more than twice August's total, though October is wetter still. Keep an indoor alternative in mind for wetter days.
Climate evidence with direct month comparison
The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Precipitation mm | Sun h/day (est.) | Humidity % | Wind m/s | Score |
|---|---|---|---|---|---|---|---|---|
| August | 32 | 21 | 5 | 27 | 7.8 | 54 | 2.2 | 69 |
| September (selected) | 27 | 17 | 9 | 71 | 5.7 | 64 | 2.2 | 80 |
| October | 22 | 13 | 10 | 89 | 3.9 | 73 | 2.2 | 79 |
How do the previous and next months compare?
Baseline: September (80/100)
Positive and negative values show the change from the selected month.
| Score Δ | Average high Δ | Average low Δ | Rainy days Δ | Rain Δ | Sun Δ | Humidity Δ | Wind Δ | |
|---|---|---|---|---|---|---|---|---|
| August | -11 | +5.2 °C | +4 °C | -4.1 | -43.7 mm | +2.1 h | -9.7 % | ±0 m/s |
| October | -1 | -4.8 °C | -3.7 °C | +1.2 | +18.5 mm | -1.8 h | +8.9 % | ±0 m/s |
All twelve months in context
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Frequently asked questions
How warm is Rome in September?
The average daily high is around 27 °C, with an average daily low of about 17 °C.
Does it rain a lot in Rome in September?
The curated estimate is about 9 rainy days per month, not a directly measured long-term average. Total precipitation averages around 71 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Rome?
By the climate score, May, June, September and October are the strongest months for Rome. September is one of them.