San Salvador de Jujuy weather in December
December in San Salvador de Jujuy: hot, soaked, with clean air — fine if you can take 23 rainy days.
Updated September 2026 · climate normals from ERA5 reanalysis
#11 of 12 months in San Salvador de Jujuy · #630 of 1413 destinations to visit in December · comfort 74/100 (tier B)
- Days
- 26°C
- Nights
- 16°C
- Wet days
- 23
- Sun
- 11.2 h
- Humidity
- 82%
- Daylight
- 14 h
Traveller notes on San Salvador de Jujuy in December
Other months in San Salvador de Jujuy
Northwest Argentina's forum describes February as squarely in the rainy season for Jujuy and neighboring Salta - some roads can flood or become impassable, but mornings are typically clear with little landslide risk, and the big storms tend to arrive in the afternoon rather than at random. Posters recommended strong sun protection regardless, since the sun is intense whenever it does break through the cloud cover. It's a month that rewards flexible day planning - clear mornings for sightseeing, afternoon plans held loosely in case a storm rolls in.
Forum posters describe this stretch of northwestern Argentina in August as genuinely excellent - close to zero chance of rain, a dry climate, and sunshine essentially every day, though cold mornings and nights are a real feature of the season. Posters describe a typical day warming into the high-60s to low-70sF by early afternoon before dropping sharply once the sun starts setting, commonly down into the 50sF or cooler by early evening. Posters recommend light clothing plus a hat and sunblock for midday sun exposure, alongside a fleece for the cold mornings and evenings - the day-to-night swing here is described as the defining feature of the season rather than any single extreme.
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San Salvador de Jujuy climate normals — December
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in San Salvador de Jujuy in December
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.
Peak crowdsChristmas and New Year, Summer holidays in Argentina, school holidays in 3 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 December
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Holiday
Christmas and New Year
24 Dec – 1 JanChristmas & New YearClosuresArgentines celebrate at midnight on 24 and 31 December with family dinners and fireworks. Shops close early on those evenings, and on 25 December and 1 January almost everything is shut, including many restaurants. Source ↗
- Season
Wet season
MonsoonRisk23 rainy days and about 254 mm in the month — the real kind of rainy season, not afternoon showers.
from the climate normals
Where is San Salvador de Jujuy?
San Salvador de Jujuy in December — FAQ
- Is December a good time to visit San Salvador de Jujuy?
- December in San Salvador de Jujuy: hot, soaked, with clean air — fine if you can take 23 rainy days. It ranks #11 of 12 months for San Salvador de Jujuy on SeasonMap's comfort score (74/100).
- What is the weather like in San Salvador de Jujuy in December?
- In December, San Salvador de Jujuy averages a daily high of 25.8°C and a low of 15.5°C, with about 253.8 mm of rain over roughly 23.1 rainy days.
- What is the air quality in San Salvador de Jujuy in December?
- San Salvador de Jujuy has a mean US Air Quality Index of about 33 in December.