When to plant watermelons in Szczecin: 5 June – 8 August

In Szczecin, watermelon: sow for seedlings from 17 April to 11 July; plant into a greenhouse from 15 May to 8 August; plant out into open ground from 5 June to 8 August.

Watermelon in Szczecin: soil, season and weather

In Szczecin 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 – 8 August; May outside: 8.4 °C at night, 18.5 °C by day; card 18–35 °C
First autumn frost	17 November, 165 days after the start
Days in the bed to the first harvest (card)	59
First harvest, if planted in this window	3 August – 6 October
Days left for picking	106
Daylight	15:28 on 8 May, 16:47 on 5 June
Watering outdoors when fruiting (card)	every 5 days; the driest month, September, has 7 rainy days

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

Watermelon in Szczecin: 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 Szczecin during the watermelon season

No month of the season averages above the watermelon card's 18–35 °C by day; the warmest, August, averages 23.7 °C. Months that stay below 18 °C even by day on average: October (14.1 °C) and November (7.8 °C). Nights average below 18 °C in every month of the season, from 3 °C to 14.3 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
June	23.3	13	67	11	16:59
July	23.2	14.1	105	13	16:32
August	23.7	14.3	61	12	14:51
September	20	11.4	48	7	12:45
October	14.1	7.6	59	12	10:40
November	7.8	3	48	10	8:40

ERA5 2016–2025, Open-Meteo

Watermelon in nearby cities

Around Szczecin, Berlin is 5 days earlier and Rostock 6 days later.

City	Distance	Date	Difference
Berlin	127 km	31 May – 10 August	5 days earlier
Potsdam	152 km	3 June – 12 August	2 days earlier
Rostock	177 km	11 June – 8 August	6 days later
Zielona Góra	178 km	1 June – 4 August	4 days earlier
Poznań	196 km	6 June – 7 August	1 day later
Bydgoszcz	233 km	6 June – 3 August	1 day later

Where to buy watermelon plants and seeds near Szczecin

Buy plants ready to set out from 5 June to 8 August (from 15 May to 8 August for an unheated greenhouse); seed for raising your own is sown from 17 April to 11 July. Within 15 km of Szczecin OpenStreetMap lists 18 garden centres, 1 farm-supply shop, 1 plant nursery, 13 markets and 4 farm shops (collected 28 October 2026).

Targowisko Turzyn — market
2 km
Targowisko Kalinka — market
2 km
Targowisko Zdroje — market
8 km
Targowisko ZAN — market
10 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.

Questions