Las Leñas weather in September
September in Las Leñas: cold, a little rain, with reliable snow — one of the best months to visit.
#1 of 12 months in Las Leñas · #13 of 604 destinations to visit in September · comfort 94/100 (tier S)
Updated June 2026 · climate normals from ERA5 reanalysis
Las Leñas climate normals — September
| Daytime high | 5°C / 40°F | 🧥 cold |
|---|---|---|
| Nighttime low | -3°C / 27°F | |
| Feels like (high) | 2°C / 36°F | |
| Rainfall | 68 mm / 2.7 in | 🌦 some rain |
| Rainy days | 8 days | |
| Humidity | 72% | 💧 humid |
| Dew point | -5°C / 23°F | |
| Sunshine | 10.1 h/day | |
| Daylight | 11.9 h | |
| Wind | 11 km/h / 7 mph | |
| Snowfall | 48.2 cm / 19 in | |
| Air quality (US AQI) | 55 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Las Leñas?
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Las Leñas in September — FAQ
- Is September a good time to visit Las Leñas?
- September in Las Leñas: cold, a little rain, with reliable snow — one of the best months to visit. It ranks #1 of 12 months for Las Leñas on SeasonMap's comfort score (94/100).
- What is the weather like in Las Leñas in September?
- In September, Las Leñas averages a daily high of 4.7°C and a low of -2.8°C, with about 67.7 mm of rain over roughly 8.2 rainy days.
- What is the air quality in Las Leñas in September?
- Las Leñas has a mean US Air Quality Index of about 55 in September.
- Does it snow in Las Leñas in September?
- Las Leñas sees roughly 48.2 cm of snowfall in September.