San Carlos de Bariloche weather in September
September in San Carlos de Bariloche: cold, a little rain, with clean air — one of the best months to visit.
#1 of 12 months in San Carlos de Bariloche · #76 of 604 destinations to visit in September · comfort 90/100 (tier S)
Updated June 2026 · climate normals from ERA5 reanalysis
San Carlos de Bariloche climate normals — September
| Daytime high | 7°C / 45°F | 🧥 cold |
|---|---|---|
| Nighttime low | 1°C / 34°F | |
| Feels like (high) | 4°C / 39°F | |
| Rainfall | 73 mm / 2.9 in | 🌦 some rain |
| Rainy days | 10 days | |
| Humidity | 81% | 💦 very humid |
| Dew point | 0°C / 32°F | |
| Sunshine | 9.5 h/day | |
| Daylight | 11.8 h | |
| Wind | 13 km/h / 8 mph | |
| Snowfall | 35.2 cm / 13.9 in | |
| Air quality (US AQI) | 31 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is San Carlos de Bariloche?
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San Carlos de Bariloche in September — FAQ
- Is September a good time to visit San Carlos de Bariloche?
- September in San Carlos de Bariloche: cold, a little rain, with clean air — one of the best months to visit. It ranks #1 of 12 months for San Carlos de Bariloche on SeasonMap's comfort score (90/100).
- What is the weather like in San Carlos de Bariloche in September?
- In September, San Carlos de Bariloche averages a daily high of 7.4°C and a low of 1°C, with about 72.9 mm of rain over roughly 10 rainy days.
- What is the air quality in San Carlos de Bariloche in September?
- San Carlos de Bariloche has a mean US Air Quality Index of about 31 in September.
- Does it snow in San Carlos de Bariloche in September?
- San Carlos de Bariloche sees roughly 35.2 cm of snowfall in September.