Montpellier weather in September
September in Montpellier: warm, rainy, with clean air — an excellent time to visit.
#3 of 12 months in Montpellier · #212 of 897 destinations to visit in September · comfort 89/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Montpellier in September
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Montpellier climate normals — September
| Daytime high | 25°C / 77°F | 🌤 warm |
|---|---|---|
| Nighttime low | 17°C / 62°F | |
| Rainfall | 89 mm / 3.5 in | 🌧 rainy |
| Rainy days | 9 days | |
| Humidity | 69% | 💧 humid |
| Dew point | 15°C / 58°F | |
| Sunshine | 10.4 h/day | |
| Daylight | 12.5 h | |
| Wind | 21 km/h / 13 mph | |
| Air quality (US AQI) | 40 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Montpellier in September — FAQ
- Is September a good time to visit Montpellier?
- September in Montpellier: warm, rainy, with clean air — an excellent time to visit. It ranks #3 of 12 months for Montpellier on SeasonMap's comfort score (89/100).
- What is the weather like in Montpellier in September?
- In September, Montpellier averages a daily high of 25.1°C and a low of 16.9°C, with about 88.5 mm of rain over roughly 8.6 rainy days.
- What is the air quality in Montpellier in September?
- Montpellier has a mean US Air Quality Index of about 40 in September.