September · Italy
Best time to visit Rome in September Weather, crowds & prices
Weather in Rome in September
Average temperature 22°C, 105 mm of rain, about 29 days with 6+ hours of sunshine and 70% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
8.1/10
Ranked #5 of 12 months
- Avg temp
- 22°C
- Rainfall
- 105 mm
- Humidity
- 70%
- Days with 6h+ sun
- 29
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
September in Rome scores 8.1/10 for sightseeing and cultural travel - an above-average month (#5 of 12). Expect around 22°C, 105 mm of rain, and roughly 29 days with 6+ hours of sunshine this month.
Rome is most generous when the day unfolds at two speeds: mornings among ruins and churches, then slow evenings in piazzas, trattorias, and lantern-lit walks once the heat lifts.
September holds up well in Rome — 5th best month
At 22°C (72°F) this is comfortable city weather in September, with sightseeing easiest before lunch and after the afternoon peak.
105 mm of rain makes this a wet month here, though with about 29 days with 6+ hours of sunshine there is still bright weather between the fronts.
That is 8.1/10 on the same scale — 5th of 12 months, versus 8.8/10 for the best month here.
Pack light clothing, a hat and real sun protection, a proper rain shell rather than an umbrella.
Budget for mid-season pricing, and crowds are moderate.
Frequently asked
- What is the weather like in Rome in September?
- In September, Rome averages 22°C, 105 mm of rain, and about 29 days with 6+ hours of sunshine. Its climate-comfort score is 8.1/10.
- Is September a good time to visit Rome?
- September earns a 8.1/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Rome in September?
- Expect about 105 mm of rain in September. Average humidity is 70% and there are about 29 days with 6+ hours of sunshine.
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