When to plant watermelons in Samsun: 24 May – 6 September

In Samsun, watermelon: sow for seedlings from 5 April to 9 August; plant into a greenhouse from 3 May to 6 September; plant out into open ground from 24 May to 6 September.

Watermelon in Samsun: soil, season and weather

In Samsun the soil, not frost, sets the date: the last frost is over around 31 March, but the top 7 cm of soil reaches 18 °C — the minimum on the watermelon card — only around 24 May, 54 days later.

Last spring frost	31 March
Top 7 cm of soil at 18 °C	24 May, 54 days after the last frost
Into an unheated greenhouse	3 May – 6 September; May outside: 10.1 °C at night, 19.5 °C by day; card 18–35 °C
First autumn frost	16 December, 206 days after the start
Days in the bed to the first harvest (card)	59
First harvest, if planted in this window	22 July – 4 November
Days left for picking	147
Daylight	13:46 on 26 April, 14:45 on 24 May
Watering outdoors when fruiting (card)	every 5 days; the driest month, July, has 9 rainy days

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

Watermelon in Samsun: care after planting

Planted on 24 May: in the first weeks water every 5 days.

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

24 May — 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 Samsun during the watermelon season

No month of the season averages above the watermelon card's 18–35 °C by day; the warmest, August, averages 27 °C. Months that stay below 18 °C even by day on average: November (15.5 °C) and December (11.5 °C). Nights average below 18 °C in every month of the season, from 4.2 °C to 17.6 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
May	19.5	10.1	102	14	14:29
June	23.7	14.6	100	13	15:08
July	26.3	16.9	46	9	14:53
August	27	17.6	48	10	13:52
September	23.6	14.4	72	11	12:31
October	19.4	10.6	81	13	11:09
November	15.5	6.6	65	9	9:54
December	11.5	4.2	81	13	9:13

ERA5 2016–2025, Open-Meteo

Watermelon in nearby cities

All the nearest cities on our list plant watermelon earlier than Samsun; the closest date is in Novorossiysk, 1 day earlier.

City	Distance	Date	Difference
Trabzon	286 km	5 May – 3 September	19 days earlier
Kayseri	295 km	20 May – 1 August	4 days earlier
Ankara	330 km	11 May – 25 July	13 days earlier
Sochi	379 km	21 May – 4 September	3 days earlier
Novorossiysk	400 km	23 May – 17 August	1 day earlier
Batumi	444 km	13 May – 3 September	11 days earlier

Where to buy watermelon plants and seeds near Samsun

Buy plants ready to set out from 24 May to 6 September (from 3 May to 6 September for an unheated greenhouse); seed for raising your own is sown from 5 April to 9 August. Within 15 km of Samsun OpenStreetMap lists 5 markets (collected 28 October 2026).

Halk Market — market
6 km
Kadıoğlu Market — market
Mon–Sun 10:00–20:00 · 8 km
Yaşar Market — market
Mon–Sun 10:00–20:00 · 9 km
Subaşı Yeraltı Çarşısı — market
0 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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