Como weather in September
September in Como: nice, rainy, with clean air — one of the best months to visit.
#2 of 12 months in Como · #291 of 897 destinations to visit in September · comfort 87/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Como in September
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Como climate normals — September
| Daytime high | 23°C / 73°F | 😎 nice |
|---|---|---|
| Nighttime low | 15°C / 59°F | |
| Rainfall | 143 mm / 5.6 in | 🌧 rainy |
| Rainy days | 11 days | |
| Humidity | 76% | 💦 very humid |
| Dew point | 15°C / 58°F | |
| Sunshine | 9.6 h/day | |
| Daylight | 12.5 h | |
| Wind | 9 km/h / 6 mph | |
| Air quality (US AQI) | 48 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Como in September — FAQ
- Is September a good time to visit Como?
- September in Como: nice, rainy, with clean air — one of the best months to visit. It ranks #2 of 12 months for Como on SeasonMap's comfort score (87/100).
- What is the weather like in Como in September?
- In September, Como averages a daily high of 23°C and a low of 15.2°C, with about 143 mm of rain over roughly 11.4 rainy days.
- What is the air quality in Como in September?
- Como has a mean US Air Quality Index of about 48 in September.