20-Year Climate Average
Rome, Lazio, Italy Weather in September
Normal High
80°F
Normal Low
63°F
Rainy Days
~11 of the month
Chance of Rain
38%
Humidity
67%
UV index
Not available
Daylight
12.5 hours
Peak wind
9 mph
Usually good for: beaches and outdoor dining.
Based on September climate records from 2006–2025 (Open-Meteo Historical Weather Archive). These are planning averages, not a forecast. Data: Open-Meteo.com, CC BY 4.0.
Current conditions
Forecast versus the climate baseline
70°F
It currently feels like 72°F with 72% humidity, a 60°F dew point and 2 mph wind. Climate averages describe the month; this live reading is what matters for plans today.
79° / 60° · 15% rain
68° / 64° · 70% rain
79° / 65° · 20% rain
Best Months to Visit Rome, Lazio, Italy
Ranked by historical rainy-day frequency — the driest months over the past 20 years.
Methodology
Monthly values use the 2001–2020 observation period. Temperature, precipitation, humidity or dew point, wind, UV and daylight are shown only when the selected source provides them; unavailable fields are never estimated or silently replaced. These are planning normals, not guarantees for a specific trip.
What is the weather like in Rome, Lazio, Italy in September?
The 20-year average high in Rome, Lazio, Italy in September is 80°F, with a low around 63°F and about 11 rainy days.