Rome vs San Marino in September

San Marino is the better pick in September — 87 vs 83 on SeasonMap's comfort score. San Marino is nice, rainy, clean air, while Rome is hot, rainy.

Rome vs San MarinoSeptember climate, side by side

RomeSan Marino
Comfort score83/100 (A)87/100 (A)
Feels-like high29°C21°C
Avg high / low28° / 17°22° / 13°
Rainfall97 mm95 mm
Rainy days99
Humidity73%73%
Air quality (AQI)5147

Monthly climate normals (ERA5 reanalysis). Comfort scores are SeasonMap estimates.

Rome vs San Marino in September — FAQ

Is September better in Rome or San Marino?
San Marino is the better pick in September — 87 vs 83 on SeasonMap's comfort score. San Marino is nice, rainy, clean air, while Rome is hot, rainy.
What is the weather like in Rome vs San Marino in September?
In September, Rome averages 28°C high / 17°C low with about 97 mm of rain; San Marino averages 22°C high / 13°C low with about 95 mm.