When to plant watermelons in Częstochowa: 5 June – 1 August

In Częstochowa, watermelon: sow for seedlings from 17 April to 4 July; plant into a greenhouse from 15 May to 1 August; plant out into open ground from 5 June to 1 August.

Watermelon in Częstochowa: soil, season and weather

In Częstochowa the soil, not frost, sets the date: the last frost is over around 22 April, but the top 7 cm of soil reaches 18 °C — the minimum on the watermelon card — only around 5 June, 44 days later.

Last spring frost	22 April
Top 7 cm of soil at 18 °C	5 June, 44 days after the last frost
Into an unheated greenhouse	15 May – 1 August; May outside: 8 °C at night, 18.4 °C by day; card 18–35 °C
First autumn frost	10 November, 158 days after the start
Days in the bed to the first harvest (card)	59
First harvest, if planted in this window	3 August – 29 September
Days left for picking	99
Daylight	15:08 on 8 May, 16:18 on 5 June
Watering outdoors when fruiting (card)	every 5 days; the driest month, November, has 10 rainy days

The same dates in Częstochowa hold for Cucumber, Bell Pepper, Eggplant, Zucchini and Pumpkin.

Watermelon in Częstochowa: care after planting

Planted on 5 June: in the first weeks water every 5 days.

Feeding, by the card’s schedule from that day:

5 June — feed: balanced (NPK)

Pests and diseases of watermelon to watch for:

Dates count from the first planting day of the window above; a later planting moves them by as many days.

Weather in Częstochowa during the watermelon season

No month of the season averages above the watermelon card's 18–35 °C by day; the warmest, August, averages 24.4 °C. Months that stay below 18 °C even by day on average: October (14.1 °C) and November (7.5 °C). Nights average below 18 °C in every month of the season, from 1.8 °C to 14.5 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
June	23.7	13.2	70	12	16:29
July	24.2	14.3	95	14	16:05
August	24.4	14.5	81	11	14:36
September	19.8	10.8	78	11	12:42
October	14.1	6.4	64	12	10:47
November	7.5	1.8	51	10	8:59

ERA5 2016–2025, Open-Meteo

Watermelon in nearby cities

Around Częstochowa, Opole is 3 days earlier and Ostrava 3 days later.

City	Distance	Date	Difference
Katowice	62 km	6 June – 7 August	1 day later
Opole	85 km	2 June – 9 August	3 days earlier
Kraków	102 km	6 June – 23 July	1 day later
Kielce	106 km	7 June – 26 July	2 days later
Łódź	108 km	6 June – 26 July	1 day later
Ostrava	126 km	8 June – 31 July	3 days later

Where to buy watermelon plants and seeds near Częstochowa

Buy plants ready to set out from 5 June to 1 August (from 15 May to 1 August for an unheated greenhouse); seed for raising your own is sown from 17 April to 4 July. Within 15 km of Częstochowa OpenStreetMap lists 9 garden centres, 1 farm-supply shop, 1 plant nursery, 6 markets and 3 farm shops (collected 28 October 2026).

Targowisko "Wały Dwernickiego" — market
Wały Józefa Dwernickiego 11, 42-202 Częstochowa · 0 km · ryneczek.eu
Targowisko — market
Aleja Wolności 7, 42-202 Częstochowa · 0 km
Garten — garden centre
4 km
Tomżyński Szkółka Roślin — garden centre
7 km

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.

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