Last and first frost dates in San Salvador de Jujuy

When is the last frost in San Salvador de Jujuy?

The last frost in San Salvador de Jujuy usually comes around 11 August: that is the median of 2016–2025, so in about half of those years the last night at or below 0 °C came later. Hardy crops start before it and frost-tender ones only after it: in the table below arugula can go into open ground from 21 July, while corn waits until 18 August. The first autumn frost follows around 25 June, about 318 days later: harvest or cover frost-tender crops before then.

When to sow and plant

Planting out: a week after the last frost once the soil is warm enough for the crop; frost-hardy crops three weeks before it; an unheated greenhouse three weeks earlier. Seedlings are sown so they are ready on that day. Each window starts on the Greenly calendar date and ends on the last day that still leaves the crop’s days to harvest (from its card) before the average first autumn frost, plus six weeks of picking for crops harvested over weeks (tomatoes, peppers, aubergines, cucumbers, courgettes, pumpkins, watermelons, beans) — our rule; earlier in the window is safer.

When the soil warms up in San Salvador de Jujuy

The day the top 7 cm of soil first averages each temperature over a week, median of 2016–2025 (ERA5 via Open-Meteo). The soil reaches 10 °C 33 days before the last spring frost and 15 °C 14 days after it.

Frost dates near San Salvador de Jujuy

Of the nearest cities on our list, the last spring frost ends earliest in San Miguel de Tucumán (20 July) and latest in Tarija (27 August).

Seeds, seedlings and markets in San Salvador de Jujuy

Within 15 km of San Salvador de Jujuy OpenStreetMap lists 3 garden centres, 1 plant nursery and 10 markets (collected 28 October 2026). The nearest garden centre to the city centre is Vivero, 5 km away.

• Vivero — garden centre
  Ruta Provincial 2, 4600 San Salvador de Jujuy · 5 km
• Mercado Hipólito Yrigoyen — market
  Avenida José de la Iglesia 1050, Y4607AEN San Salvador de Jujuy, Jujuy · Mon–Sat 17:00–20:00+ · 0 km
• Feria el Gaucho — market
  Tesorero, 4600 San Salvador de Jujuy · 3 km

• Where to buy seeds and seedlings in San Salvador de Jujuy
• Selling your own harvest in Argentina

Places: © OpenStreetMap contributors, ODbL.

Weather in San Salvador de Jujuy by month

Average weather in San Salvador de Jujuy over 2016–2025: the warmest month is January. Months that average 20 °C or more by day: August–April (20.5–26.2 °C). No month averages below 0 °C at night; the coldest nights, in June, average 5.1 °C. About 1523 mm of rain falls in a year, on 173 days; January is the wettest month (242 mm) and August the driest (19 mm).

Average of the daily highs and lows, rain per month and days with at least 1 mm (ERA5 via Open-Meteo, the same grid cell as the frost dates).

Planted in autumn

From a month before the first autumn frost, so the roots grow before winter, to the late-planting limit on each crop’s page (about two weeks before the ground freezes, by ten years of weather).