Salta weather in May
May in Salta: nice, a little rain, with clean air — an excellent time to visit.
#6 of 12 months in Salta · #209 of 604 destinations to visit in May · comfort 85/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Salta climate normals — May
| Daytime high | 18°C / 65°F | 😎 nice |
|---|---|---|
| Nighttime low | 10°C / 50°F | |
| Feels like (high) | 18°C / 64°F | |
| Rainfall | 64 mm / 2.5 in | 🌦 some rain |
| Rainy days | 11 days | |
| Humidity | 81% | 💦 very humid |
| Dew point | 10°C / 50°F | |
| Sunshine | 9.4 h/day | |
| Daylight | 10.9 h | |
| Wind | 8 km/h / 5 mph | |
| Snowfall | 0.1 cm / 0 in | |
| Air quality (US AQI) | 21 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Salta in May — FAQ
- Is May a good time to visit Salta?
- May in Salta: nice, a little rain, with clean air — an excellent time to visit. It ranks #6 of 12 months for Salta on SeasonMap's comfort score (85/100).
- What is the weather like in Salta in May?
- In May, Salta averages a daily high of 18.1°C and a low of 9.8°C, with about 63.6 mm of rain over roughly 11.4 rainy days.
- What is the air quality in Salta in May?
- Salta has a mean US Air Quality Index of about 21 in May.