Uyuni weather in September
September in Uyuni: cool, dry, with clean air — an excellent time to visit.
#7 of 12 months in Uyuni · #235 of 604 destinations to visit in September · comfort 84/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Uyuni climate normals — September
| Daytime high | 16°C / 61°F | 🙂 cool |
|---|---|---|
| Nighttime low | -1°C / 30°F | |
| Feels like (high) | 11°C / 52°F | |
| Rainfall | 6 mm / 0.3 in | ☀️ dry |
| Rainy days | 2 days | |
| Humidity | 14% | 🌵 dry |
| Dew point | -22°C / -7°F | |
| Sunshine | 11.1 h/day | |
| Daylight | 12 h | |
| Wind | 24 km/h / 15 mph | |
| Snowfall | 0.2 cm / 0.1 in | |
| Air quality (US AQI) | 40 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Uyuni?
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Uyuni in September — FAQ
- Is September a good time to visit Uyuni?
- September in Uyuni: cool, dry, with clean air — an excellent time to visit. It ranks #7 of 12 months for Uyuni on SeasonMap's comfort score (84/100).
- What is the weather like in Uyuni in September?
- In September, Uyuni averages a daily high of 16.3°C and a low of -0.9°C, with about 6.4 mm of rain over roughly 1.6 rainy days.
- What is the air quality in Uyuni in September?
- Uyuni has a mean US Air Quality Index of about 40 in September.