Last and first frost dates in Curitiba

When is the last frost in Curitiba?

The last frost in Curitiba usually comes around 19 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 28 June, while corn waits until 26 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 Curitiba

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 Curitiba

Of the nearest cities on our list, the last spring frost ends earliest in Ponta Grossa (19 July) and latest in Guarapuava (5 August).

Seeds, seedlings and markets in Curitiba

Within 15 km of Curitiba OpenStreetMap lists 3 garden centres, 2 farm-supply shops, 1 plant nursery, 31 markets and 2 farm shops (collected 20 October 2026). The nearest garden centre to the city centre is Leroy Merlin, 5 km away.

• Leroy Merlin — garden centre
  Avenida Presidente Wenceslau Braz 88, 81030-030 · 5 km
• Casa do Produtor — farm supply
  Rodovia João Leopoldo Jacomel · 7 km
• Horto Municipal do Guabirotuba — plant nursery
  Avenida Senador Salgado Filho 1050 · 4 km
• Feira Orgânica Diurna Passeio Público — market
  Rua Presidente Faria 550, Curitiba · Sat 07:00–12:00 · 1 km · curitiba.pr.gov.br
• Ponto Verde Empório e Hortifrúti — farm shop
  Rua Murilo do Amaral Ferreira 121, 80620-120 Curitiba · 4 km
• Casa das Plantas — garden centre
  Avenida Cândido Hartmann 4405 · 6 km · casadasplantas.com.br

• Where to buy seeds and seedlings in Curitiba

Places: © OpenStreetMap contributors, ODbL.

Weather in Curitiba by month

Average weather in Curitiba over 2016–2025: the warmest month is January. Months that average 20 °C or more by day: August–May (20–25.5 °C). No month averages below 0 °C at night; the coldest nights, in July, average 9.4 °C. About 1467 mm of rain falls in a year, on 174 days; January is the wettest month (203 mm) and July the driest (44 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).