When to plant watermelons in Kayseri: 20 May – 1 August

In Kayseri, watermelon: sow for seedlings from 1 April to 4 July; plant into a greenhouse from 29 April to 1 August; plant out into open ground from 20 May to 1 August.

Watermelon in Kayseri: soil, season and weather

In Kayseri the soil, not frost, sets the date: the last frost is over around 14 April, but the top 7 cm of soil reaches 18 °C — the minimum on the watermelon card — only around 20 May, 36 days later.

Last spring frost	14 April
Top 7 cm of soil at 18 °C	20 May, 36 days after the last frost
Into an unheated greenhouse	29 April – 1 August; April outside: 4.8 °C at night, 18.3 °C by day; card 18–35 °C
First autumn frost	10 November, 174 days after the start
Days in the bed to the first harvest (card)	59
First harvest, if planted in this window	18 July – 29 September
Days left for picking	115
Daylight	13:28 on 22 April, 14:25 on 20 May
Watering outdoors when fruiting (card)	every 5 days; the driest month, July, has 1 rainy day

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

Watermelon in Kayseri: care after planting

Planted on 20 May: in the first weeks water every 5 days.

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

20 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 Kayseri during the watermelon season

No month of the season averages above the watermelon card's 18–35 °C by day; the warmest, August, averages 32.1 °C. Months that stay below 18 °C even by day on average: November (14.1 °C). Nights average below 18 °C in every month of the season, from 2.3 °C to 17 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
May	22.2	9	66	12	14:16
June	27.2	13.6	34	7	14:52
July	31.3	16.3	4	1	14:38
August	32.1	17	8	2	13:42
September	27.2	13.2	13	2	12:29
October	21	7.9	16	4	11:14
November	14.1	2.3	33	6	10:05

ERA5 2016–2025, Open-Meteo

Watermelon in nearby cities

Around Kayseri, Adana is 36 days earlier and Samsun 4 days later.

City	Distance	Date	Difference
Adana	192 km	14 April – 5 September	36 days earlier
Gaziantep	247 km	15 April – 14 September	35 days earlier
Ankara	263 km	11 May – 25 July	9 days earlier
Konya	278 km	28 April – 31 July	22 days earlier
Samsun	295 km	24 May – 6 September	4 days later
Diyarbakır	424 km	1 May – 16 August	19 days earlier

Where to buy watermelon plants and seeds near Kayseri

Buy plants ready to set out from 20 May to 1 August (from 29 April to 1 August for an unheated greenhouse); seed for raising your own is sown from 1 April to 4 July. Within 15 km of Kayseri OpenStreetMap lists 33 markets (collected 28 October 2026).

Market square — market
9 km
Market square — market
9 km
Market square — market
9 km
Market square — market
9 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