September · Italy
Best time to visit Colosseum in September Weather, crowds & prices
Weather in Colosseum 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 Colosseum 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’s arena and Forum stones are easiest under the mild April-June light.
September in Colosseum: strong conditions, 5th of 12
September averages 22°C (72°F) — pleasant for mornings and evenings on foot in the city, with a midday break when the sun is strongest.
Monthly rainfall reaches 105 mm — wet for this destination — but about 29 days with 6+ hours of sunshine still break through, so keep one indoor fallback in the plan.
It scores 8.1/10 here, 5th of 12 months, against 8.8/10 in the destination's best month.
Pack light clothing, a hat and real sun protection, a proper rain shell rather than an umbrella.
Plan for mid-season pricing, with crowds are moderate.
Frequently asked
- What is the weather like in Colosseum in September?
- In September, Colosseum 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 Colosseum?
- 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 Colosseum 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.
Curated in Colosseum
Tickets & experiences
Things to do in Colosseum
Colosseum, Italy. Live activities and tours from GetYourGuide, matched to this destination.