Last and first frost dates in Opole

When is the last frost in Opole?

The last frost in Opole usually comes around 15 April: 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 25 March, while corn waits until 29 April. The first autumn frost follows around 18 November, about 217 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 Opole

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 5 days before the last spring frost and 15 °C 26 days after it.

Frost dates near Opole

Of the nearest cities on our list, the last spring frost ends earliest in Rybnik (15 April) and latest in Gliwice (23 April).

Seeds, seedlings and markets in Opole

Within 15 km of Opole OpenStreetMap lists 4 garden centres, 2 farm-supply shops and 2 markets (collected 28 October 2026). The nearest garden centre to the city centre is Bajek, 6 km away.

• Bajek — garden centre
  Mon–Fri 08:00–18:00; Sat 08:00–14:00 · 6 km
• Grene — farm supply
  Budowlanych 50, 45-124 Opole · 3 km · grene.pl
• Giełda Opole — market
  Sun 06:00–13:00 · 3 km · facebook.com
• Szkółki Olszanowski - Drzewa, Krzewy, Byliny — garden centre
  Szkolna 4, 46-022 Zawada · Mon–Fri 08:00–18:00; Sat 09:00–17:00 · 7 km · olszanowski.com.pl
• Grene — farm supply
  Opolska 56, 46-060 Złotniki · 8 km
• Warzywa Owoce Roj — market
  Namysłowska 46d, 46-081 Dobrzeń Wielki · 12 km

• Where to buy seeds and seedlings in Opole
• Selling your own harvest in Poland

Places: © OpenStreetMap contributors, ODbL.

Weather in Opole by month

Average weather in Opole over 2016–2025: the warmest month is August. Months that average 20 °C or more by day: June–September (20.7–25.1 °C). Nights average below 0 °C in January (-2.6 °C), February (-1.2 °C) and December (-0.5 °C). About 745 mm of rain falls in a year, on 137 days; July is the wettest month (97 mm) and March the driest (37 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).