When to plant watermelons in Ciudad Real: 7 May – 19 August

In Ciudad Real, watermelon: sow for seedlings from 19 March to 22 July; plant into a greenhouse from 16 April to 19 August; plant out into open ground from 7 May to 19 August.

Watermelon in Ciudad Real: soil, season and weather

In Ciudad Real the soil, not frost, sets the date: the last frost is over around 6 March, but the top 7 cm of soil reaches 18 °C — the minimum on the watermelon card — only around 7 May, 62 days later.

Last spring frost	6 March
Top 7 cm of soil at 18 °C	7 May, 62 days after the last frost
Into an unheated greenhouse	16 April – 19 August; April outside: 7.6 °C at night, 19.7 °C by day; card 18–35 °C
First autumn frost	28 November, 205 days after the start
Days in the bed to the first harvest (card)	59
First harvest, if planted in this window	5 July – 17 October
Days left for picking	146
Daylight	12:57 on 9 April, 14:02 on 7 May
Watering outdoors when fruiting (card)	every 5 days; the driest month, July, has 1 rainy day

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

Watermelon in Ciudad Real: care after planting

Planted on 7 May: in the first weeks water every 5 days.

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

7 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 Ciudad Real during the watermelon season

Days average above the watermelon card's 18–35 °C in July (35.5 °C). Months that stay below 18 °C even by day on average: November (15.7 °C). Nights average below 18 °C in May, June and September–November (5.7–16.8 °C).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
May	25.1	11.6	32	6	14:17
June	31	16.8	16	3	14:53
July	35.5	20.2	3	1	14:39
August	34.9	20.1	8	1	13:43
September	28.7	15.4	26	4	12:29
October	23.5	11.2	55	7	11:14
November	15.7	5.7	50	8	10:04

ERA5 2016–2025, Open-Meteo

Watermelon in nearby cities

Around Ciudad Real, Córdoba (Spain) is 16 days earlier and Toledo 4 days later.

City	Distance	Date	Difference
Alcázar de San Juan	76 km	30 April – 23 August	7 days earlier
Toledo	97 km	11 May – 27 August	4 days later
Úbeda	119 km	7 May – 24 August	same day
Talavera de la Reina	134 km	9 May – 8 September	2 days later
Jaén	136 km	26 April – 7 September	11 days earlier
Córdoba (Spain)	143 km	21 April – 18 September	16 days earlier

Where to buy watermelon plants and seeds near Ciudad Real

Buy plants ready to set out from 7 May to 19 August (from 16 April to 19 August for an unheated greenhouse); seed for raising your own is sown from 19 March to 22 July. Within 15 km of Ciudad Real OpenStreetMap lists 1 garden centre and 1 market (collected 27 October 2026).

Viveros Candi — garden centre
9 km
Mercado Municipal — market
1 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