SeasonMapSan Salvador de Jujuy weather in September
Argentina
September in San Salvador de Jujuy: nice, a little rain, with clean air — one of the best months to visit.
#1 of 12 months in San Salvador de Jujuy · #234 of 1383 destinations to visit in September · comfort 90/100 (tier S)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on San Salvador de Jujuy in September
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San Salvador de Jujuy climate normals — September
| Daytime high | 23°C / 73°F | 😎 nice |
|---|---|---|
| Nighttime low | 10°C / 50°F | |
| Feels like (high) | 23°C / 73°F | |
| Rainfall | 79 mm / 3.1 in | 🌦 some rain |
| Rainy days | 13 days | |
| Humidity | 69% | 💧 humid |
| Dew point | 9°C / 47°F | |
| Sunshine | 10.8 h/day | |
| Daylight | 12 h | |
| Wind | 8 km/h / 5 mph | |
| Snowfall | 0.3 cm / 0.1 in | |
| Air quality (US AQI) | 39 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in San Salvador de Jujuy in September
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
BusyFiesta Nacional de los Estudiantes, school holidays in 2 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for San Salvador de Jujuy's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherSan Salvador de Jujuy's weather doesn't swing hard through the year — comfort stays fairly steady in every month.
What's on in San Salvador de Jujuy in September
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Festival
Fiesta Nacional de los Estudiantes
12–26 SepMajor festivalCrowdedBook earlyA fortnight of school-built floats paraded through the city to open the spring, ending with the election of the national representative. Hotels fill and the school week loses days to it. Source ↗
Where is San Salvador de Jujuy?
San Salvador de Jujuy in September — FAQ
- Is September a good time to visit San Salvador de Jujuy?
- September in San Salvador de Jujuy: nice, a little rain, with clean air — one of the best months to visit. It ranks #1 of 12 months for San Salvador de Jujuy on SeasonMap's comfort score (90/100).
- What is the weather like in San Salvador de Jujuy in September?
- In September, San Salvador de Jujuy averages a daily high of 22.8°C and a low of 10°C, with about 79 mm of rain over roughly 12.5 rainy days.
- What is the air quality in San Salvador de Jujuy in September?
- San Salvador de Jujuy has a mean US Air Quality Index of about 39 in September.