SeasonMapRome vs Siena in September
Siena is the better pick in September — 90 vs 83 on SeasonMap's comfort score. Siena is warm, rainy, clean air, while Rome is hot, rainy.
Rome vs Siena — September climate, side by side
| Rome | Siena | |
|---|---|---|
| Comfort score | 83/100 (A) | 90/100 (S) |
| Feels-like high | 29°C | 25°C |
| Avg high / low | 28° / 17° | 25° / 15° |
| Rainfall | 97 mm | 93 mm |
| Rainy days | 9 | 9 |
| Humidity | 73% | 71% |
| Air quality (AQI) | 51 | 41 |
Monthly climate normals (ERA5 reanalysis). Comfort scores are SeasonMap estimates.
Rome vs Siena in September — FAQ
- Is September better in Rome or Siena?
- Siena is the better pick in September — 90 vs 83 on SeasonMap's comfort score. Siena is warm, rainy, clean air, while Rome is hot, rainy.
- What is the weather like in Rome vs Siena in September?
- In September, Rome averages 28°C high / 17°C low with about 97 mm of rain; Siena averages 25°C high / 15°C low with about 93 mm.