Last and first frost dates in Katowice

When is the last frost in Katowice?

The last frost in Katowice 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 30 April. The first autumn frost follows around 16 November, about 215 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 Katowice

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 4 days before the last spring frost and 15 °C 33 days after it.

Frost dates near Katowice

Of the nearest cities on our list, the last spring frost ends earliest in Jaworzno (15 April) and latest in Bielsko-Biała (10 May).

Seeds, seedlings and markets in Katowice

Within 15 km of Katowice OpenStreetMap lists 25 garden centres, 1 farm-supply shop, 7 plant nurseries, 33 markets and 3 farm shops (collected 28 October 2026). The nearest garden centre to the city centre is Centrum ogrodnicze „Silesia”, 2 km away.

• Centrum ogrodnicze „Silesia” — garden centre
  Mon–Fri 09:00–17:00; Sat 09:00–13:00; Sun, public holidays closed · 2 km · centrumogrodniczesilesia.pl
• Rolnik — farm supply
  Uniczowska, 40-748 Katowice · 10 km
• Targowisko Miejskie — market
  Katowicka, Katowice · Mon–Sat 06:00–18:00; public holidays closed · 1 km · ztm24.pl
• Ogólnospożywczy — farm shop
  Mazurska 6, 41-907 Bytom · Mon–Fri 06:00–18:00; Sat 06:00–15:00 · 13 km
• CALLA.pl — garden centre
  Kochłowicka 63, 40-817 Katowice · Mon–Fri 08:00–16:00 · 2 km
• BioBazar Huta Baildon — market
  Johna Baildona 66, 40-115 Katowice · Wed 07:00–17:00; Sat 07:00–14:00 · 2 km · katowice.biobazar.org.pl

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

Places: © OpenStreetMap contributors, ODbL.

Weather in Katowice by month

Average weather in Katowice over 2016–2025: the warmest month is August. Months that average 20 °C or more by day: June–September (20–24.6 °C). Nights average below 0 °C in January (-3.3 °C), February (-1.7 °C) and December (-1.2 °C). About 792 mm of rain falls in a year, on 140 days; July is the wettest month (98 mm) and March the driest (43 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).