Buenos Aires weather in October
October in Buenos Aires: nice, rainy, with clean air — one of the best months to visit.
#1 of 12 months in Buenos Aires · #49 of 604 destinations to visit in October · comfort 90/100 (tier S)
Updated June 2026 · climate normals from ERA5 reanalysis
Buenos Aires climate normals — October
| Daytime high | 21°C / 70°F | 😎 nice |
|---|---|---|
| Nighttime low | 13°C / 56°F | |
| Feels like (high) | 20°C / 68°F | |
| Rainfall | 92 mm / 3.6 in | 🌧 rainy |
| Rainy days | 8 days | |
| Humidity | 66% | 💧 humid |
| Dew point | 10°C / 50°F | |
| Sunshine | 10.1 h/day | |
| Daylight | 13 h | |
| Wind | 25 km/h / 16 mph | |
| Air quality (US AQI) | 32 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Buenos Aires in October — FAQ
- Is October a good time to visit Buenos Aires?
- October in Buenos Aires: nice, rainy, with clean air — one of the best months to visit. It ranks #1 of 12 months for Buenos Aires on SeasonMap's comfort score (90/100).
- What is the weather like in Buenos Aires in October?
- In October, Buenos Aires averages a daily high of 20.9°C and a low of 13.3°C, with about 91.8 mm of rain over roughly 8.4 rainy days.
- What is the air quality in Buenos Aires in October?
- Buenos Aires has a mean US Air Quality Index of about 32 in October.