Monthly climate guide
Rome weather in September
With highs near 28°C (82°F) and lows around 17°C (63°F), September feels hot in Rome. Rainfall averages about 72 mm (some rain) and the sky is mostly sunny. Daytime highs are 5°C cooler than August and 5°C warmer than October.
What stands out in September
- Just 90 km apart, but Rome runs about 5°C warmer than L'Aquila this month.
- It cools down fast from here: October is about 5°C cooler.
- In Rome, September is early autumn.
- Comfortable temperatures make it easy to walk between Colosseum and Vatican Museums & Sistine Chapel.
Avg high
28°C
82°F
Avg low
17°C
63°F
Rainfall
72 mm
some rain
Humidity
64%
relative
Sky
34%
cloud · mostly sunny
Rome weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 12°C / 53°F | 4°C / 38°F | 71 mm | 81% | 54% |
| February | 13°C / 55°F | 4°C / 39°F | 90 mm | 79% | 51% |
| March | 16°C / 60°F | 6°C / 43°F | 79 mm | 76% | 49% |
| April | 20°C / 67°F | 9°C / 48°F | 53 mm | 72% | 45% |
| May | 23°C / 73°F | 12°C / 54°F | 59 mm | 69% | 42% |
| June | 29°C / 83°F | 17°C / 63°F | 37 mm | 62% | 25% |
| July | 32°C / 90°F | 20°C / 69°F | 32 mm | 55% | 15% |
| August | 33°C / 91°F | 21°C / 70°F | 26 mm | 53% | 15% |
| September | 28°C / 82°F | 17°C / 63°F | 72 mm | 64% | 34% |
| October | 23°C / 73°F | 13°C / 55°F | 88 mm | 72% | 41% |
| November | 17°C / 63°F | 9°C / 49°F | 114 mm | 80% | 52% |
| December | 13°C / 56°F | 5°C / 41°F | 75 mm | 80% | 46% |
What to pack for September
- Light, breathable clothing (cotton or linen)
- A sun hat and high-SPF sunscreen
- A refillable water bottle
- A compact umbrella or packable rain jacket
- Water-resistant shoes
- Sunglasses
Is September a good time to visit Rome?
Our Rome guide recommends: Late April to June or September to October, when temperatures are mild and the summer crowds have thinned.
Book skip-the-line tickets for the Colosseum and Vatican in advance — same-day queues can run over an hour, especially in summer.
Best time to visit Rome →Other Italy cities in September
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Rome weather in September. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/italy/rome/september
<a href="https://weathercompare.eu/weather/italy/rome/september">Rome weather in September</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/italy/rome" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Rome weather in September"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/italy/rome/september">Rome weather in September</a> – WeatherCompare</p>
Rome in September: quick answers
Is September a good time to visit Rome?
September is a reasonable time for Rome: highs around 28°C and about 72 mm of rain, though not one of the three best months.
How warm is Rome in September?
Average highs are about 28°C (82°F) and average lows about 17°C (63°F), based on 10 years of daily data.
Does it rain a lot in Rome in September?
Rome typically gets around 72 mm of rain in September — some rain.
When is the best time to visit Rome?
Late April to June or September to October, when temperatures are mild and the summer crowds have thinned.
Figures are long-term averages for the area around Rome (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.