Marseille weather in September
September in Marseille: warm, a little rain — an excellent time to visit.
#3 of 12 months in Marseille · #169 of 604 destinations to visit in September · comfort 86/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Marseille climate normals — September
| Daytime high | 25°C / 78°F | 🌤 warm |
|---|---|---|
| Nighttime low | 19°C / 65°F | |
| Feels like (high) | 26°C / 79°F | |
| Rainfall | 63 mm / 2.5 in | 🌦 some rain |
| Rainy days | 7 days | |
| Humidity | 70% | 💧 humid |
| Dew point | 16°C / 61°F | |
| Sunshine | 10.5 h/day | |
| Daylight | 12.5 h | |
| Wind | 19 km/h / 11 mph | |
| Air quality (US AQI) | 53 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Marseille in September — FAQ
- Is September a good time to visit Marseille?
- September in Marseille: warm, a little rain — an excellent time to visit. It ranks #3 of 12 months for Marseille on SeasonMap's comfort score (86/100).
- What is the weather like in Marseille in September?
- In September, Marseille averages a daily high of 25.3°C and a low of 18.5°C, with about 63.3 mm of rain over roughly 6.6 rainy days.
- What is the air quality in Marseille in September?
- Marseille has a mean US Air Quality Index of about 53 in September.