When to plant watermelons in Cuenca (Spain): 14 May – 4 August

In Cuenca (Spain), watermelon: sow for seedlings from 26 March to 7 July; plant into a greenhouse from 23 April to 4 August; plant out into open ground from 14 May to 4 August. For plants and seeds, the places nearby include Viveros La Mezquita (garden centre, 5 km); addresses and opening hours are below.

Watermelon in Cuenca (Spain): soil, season and weather

In Cuenca (Spain) the soil, not frost, sets the date: the last frost is over around 5 April, but the top 7 cm of soil reaches 18 °C — the minimum on the watermelon card — only around 14 May, 39 days later.

Last spring frost	5 April
Top 7 cm of soil at 18 °C	14 May, 39 days after the last frost
Into an unheated greenhouse	23 April – 4 August; April outside: 5 °C at night, 16.8 °C by day; card 18–35 °C
First autumn frost	13 November, 183 days after the start
Days in the bed to the first harvest (card)	59
First harvest, if planted in this window	12 July – 2 October
Days left for picking	124
Daylight	13:17 on 16 April, 14:21 on 14 May
Watering outdoors when fruiting (card)	every 5 days; the driest month, July, has 1 rainy day

The same dates in Cuenca (Spain) hold for Cucumber, Bell Pepper, Eggplant, Zucchini and Pumpkin.

Watermelon in Cuenca (Spain): care after planting

Planted on 14 May: in the first weeks water every 5 days.

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

14 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 Cuenca (Spain) during the watermelon season

No month of the season averages above the watermelon card's 18–35 °C by day; the warmest, July, averages 32.2 °C. Months that stay below 18 °C even by day on average: November (13 °C). Nights average below 18 °C in every month of the season, from 3.6 °C to 17.2 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
May	21.9	8.6	46	7	14:23
June	27.6	13.8	36	6	15:00
July	32.2	17.2	8	1	14:45
August	31.7	17.2	13	3	13:47
September	25.3	12.5	37	6	12:30
October	20.4	8.7	65	8	11:12
November	13	3.6	57	9	9:59

ERA5 2016–2025, Open-Meteo

Watermelon in nearby cities

Around Cuenca (Spain), Alcázar de San Juan is 14 days earlier and Teruel 29 days later.

City	Distance	Date	Difference
Teruel	92 km	12 June – 29 July	29 days later
Guadalajara (Spain)	107 km	17 May – 15 August	3 days later
Alcázar de San Juan	119 km	30 April – 23 August	14 days earlier
Albacete	122 km	12 May – 17 August	2 days earlier
Madrid	139 km	14 May – 18 August	same day
Toledo	164 km	11 May – 27 August	3 days earlier

Where to buy watermelon plants and seeds near Cuenca (Spain)

Buy plants ready to set out from 14 May to 4 August (from 23 April to 4 August for an unheated greenhouse); seed for raising your own is sown from 26 March to 7 July. Within 15 km of Cuenca (Spain) OpenStreetMap lists 1 garden centre, 2 plant nurseries and 1 market (collected 27 October 2026).

Viveros La Mezquita — garden centre
Mon–Sat 09:30–14:00, 16:30–20:00; Sun 10:00–14:00 · 5 km
Mercadillo — market
Tue 09:00–14:00 · 1 km
Vivero Central de Cuenca — plant nursery
4 km
Vivero Cenntral de Cuenca — plant nursery
4 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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