Rimini weather in September
September in Rimini: warm, a little rain, with clean air — an excellent time to visit.
#4 of 12 months in Rimini · #391 of 897 destinations to visit in September · comfort 85/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
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Rimini climate normals — September
| Daytime high | 26°C / 78°F | 🌤 warm |
|---|---|---|
| Nighttime low | 17°C / 63°F | |
| Rainfall | 74 mm / 2.9 in | 🌦 some rain |
| Rainy days | 8 days | |
| Humidity | 69% | 💧 humid |
| Dew point | 16°C / 60°F | |
| Sunshine | 10.3 h/day | |
| Daylight | 12.5 h | |
| Wind | 15 km/h / 10 mph | |
| Air quality (US AQI) | 47 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Rimini in September — FAQ
- Is September a good time to visit Rimini?
- September in Rimini: warm, a little rain, with clean air — an excellent time to visit. It ranks #4 of 12 months for Rimini on SeasonMap's comfort score (85/100).
- What is the weather like in Rimini in September?
- In September, Rimini averages a daily high of 25.5°C and a low of 17.3°C, with about 74.3 mm of rain over roughly 8 rainy days.
- What is the air quality in Rimini in September?
- Rimini has a mean US Air Quality Index of about 47 in September.