Buenos Aires weather in May
May in Buenos Aires: nice, a little rain, with clean air — an excellent time to visit.
#8 of 12 months in Buenos Aires · #281 of 604 destinations to visit in May · comfort 82/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Buenos Aires climate normals — May
| Daytime high | 17°C / 63°F | 😎 nice |
|---|---|---|
| Nighttime low | 11°C / 52°F | |
| Feels like (high) | 16°C / 61°F | |
| Rainfall | 58 mm / 2.3 in | 🌦 some rain |
| Rainy days | 5 days | |
| Humidity | 77% | 💦 very humid |
| Dew point | 10°C / 50°F | |
| Sunshine | 8 h/day | |
| Daylight | 10.3 h | |
| Wind | 22 km/h / 14 mph | |
| Air quality (US AQI) | 36 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Buenos Aires in May — FAQ
- Is May a good time to visit Buenos Aires?
- May in Buenos Aires: nice, a little rain, with clean air — an excellent time to visit. It ranks #8 of 12 months for Buenos Aires on SeasonMap's comfort score (82/100).
- What is the weather like in Buenos Aires in May?
- In May, Buenos Aires averages a daily high of 17.4°C and a low of 11.3°C, with about 58 mm of rain over roughly 4.8 rainy days.
- What is the air quality in Buenos Aires in May?
- Buenos Aires has a mean US Air Quality Index of about 36 in May.