Last and first frost dates in Charleroi

When is the last frost in Charleroi?

The last frost in Charleroi usually comes around 13 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 23 March, while corn waits until 26 April. The first autumn frost follows around 15 November, about 216 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 Charleroi

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

Frost dates near Charleroi

Of the nearest cities on our list, the last spring frost ends earliest in Mons (10 April) and latest in Leuven (19 April).

Seeds, seedlings and markets in Charleroi

Within 15 km of Charleroi OpenStreetMap lists 15 garden centres, 2 farm-supply shops, 2 plant nurseries, 7 markets and 7 farm shops (collected 27 October 2026). The nearest garden centre to the city centre is Tournesols, 4 km away.

• Tournesols — garden centre
  Chaussée de Châtelineau 315 · 4 km · tournesols.be
• Gerpiagri — farm supply
  Rue de Moncheret 28, 6280 · Mon–Sat 08:30–17:00 · 9 km · gerpiagri.be
• Pépinière Nemeghaire — plant nursery
  Rue de l'Alouette 10 · 14 km
• Marché de Chatelineau — market
  Place Wilson, 6200 Châtelineau · 6 km
• Les Fraises du Village — farm shop
  Rue du Godiassau 47, 6280 Gerpinnes · 8 km · fraisesduvillage.be
• Aveve — garden centre
  Avenue Henri Dewiest 88, 6180 Courcelles · Mon–Sat 09:00–18:00 · 7 km · aveve.be

• Where to buy seeds and seedlings in Charleroi
• Selling your own harvest in Belgium

Places: © OpenStreetMap contributors, ODbL.

Weather in Charleroi by month

Average weather in Charleroi over 2016–2025: the warmest month is August. Months that average 20 °C or more by day: June–September (20–23.3 °C). No month averages below 0 °C at night; the coldest nights, in January, average 0.7 °C. About 846 mm of rain falls in a year, on 148 days; January is the wettest month (88 mm) and April the driest (47 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).