Last and first frost dates in San Miguel de Tucumán

When is the last frost in San Miguel de Tucumán?

The last frost in San Miguel de Tucumán usually comes around 20 July: 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 29 June, while corn waits until 27 July.

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 Miguel de Tucumán

The day the top 7 cm of soil first averages each temperature over a week, median of 2016–2025 (ERA5 via Open-Meteo).

Frost dates near San Miguel de Tucumán

Of the nearest cities on our list, the last spring frost ends earliest in San Fernando del Valle de Catamarca (15 July) and latest in San Salvador de Jujuy (11 August).

Seeds, seedlings and markets in San Miguel de Tucumán

Within 15 km of San Miguel de Tucumán OpenStreetMap lists 2 garden centres, 1 farm-supply shop and 6 markets (collected 20 October 2026). The nearest farm supply to the city centre is Alfredo Palacios, 5 km away.

• Alfredo Palacios — farm supply
  Alfredo Palacios 480, 4000 San Miguel de Tucumán · 5 km
• Ortega Camiones SA — market
  Presidente Juan Domingo Perón, Alderetes · Mon–Fri 08:00–12:00, 15:30–19:30; Sat 08:00–12:00 · 8 km · ortegacamiones.com
• Mercado Municipal Tafí Viejo — market
  San Martín, 4103 Tafí Viejo · 9 km

• Where to buy seeds and seedlings in San Miguel de Tucumán
• Selling your own harvest in Argentina

Places: © OpenStreetMap contributors, ODbL.

Weather in San Miguel de Tucumán by month

Average weather in San Miguel de Tucumán over 2016–2025: the warmest month is January. Months that average 20 °C or more by day: August–April (21.3–29.7 °C). No month averages below 0 °C at night; the coldest nights, in July, average 7.2 °C. About 1268 mm of rain falls in a year, on 118 days; January is the wettest month (231 mm) and August the driest (9 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).