Last and first frost dates in Guarapuava

When is the last frost in Guarapuava?

The last frost in Guarapuava usually comes around 5 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 15 July, while corn waits until 12 August. The first autumn frost follows around 24 June, about 323 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 Guarapuava

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 Guarapuava

Of the nearest cities on our list, the last spring frost ends earliest in Cascavel (18 July) and latest in Chapecó (3 August).

Seeds, seedlings and markets in Guarapuava

Within 15 km of Guarapuava OpenStreetMap lists 1 farm-supply shop, 1 plant nursery and 1 market (collected 27 October 2026). The nearest farm supply to the city centre is Master Campus, 5 km away.

• Master Campus — farm supply
  BR-277 2540, 85030-230 Guarapuava - PR · Mon–Sat 08:00–18:00 · 5 km
• Matilde — market
  Rua Fredolin Worn · 2 km

• Where to buy seeds and seedlings in Guarapuava

Places: © OpenStreetMap contributors, ODbL.

Weather in Guarapuava by month

Average weather in Guarapuava over 2016–2025: the warmest month is December. Months that average 20 °C or more by day: September–April (22.1–24.7 °C). No month averages below 0 °C at night; the coldest nights, in July, average 8.9 °C. About 1779 mm of rain falls in a year, on 159 days; October is the wettest month (232 mm) and July the driest (63 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).