When to plant watermelons in Lleida: 29 April – 9 September

In Lleida, watermelon: sow for seedlings from 11 March to 12 August; plant into a greenhouse from 8 April to 9 September; plant out into open ground from 29 April to 9 September. For plants and seeds, the places nearby include Fruits de Ponent (farm supply, 8 km); addresses and opening hours are below.

Watermelon in Lleida: soil, season and weather

In Lleida the soil, not frost, sets the date: the last frost is over around 9 February, but the top 7 cm of soil reaches 18 °C — the minimum on the watermelon card — only around 29 April, 79 days later.

Last spring frost	9 February
Top 7 cm of soil at 18 °C	29 April, 79 days after the last frost
Into an unheated greenhouse	8 April – 9 September; April outside: 9 °C at night, 21.3 °C by day; card 18–35 °C
First autumn frost	19 December, 234 days after the start
Days in the bed to the first harvest (card)	59
First harvest, if planted in this window	27 June – 7 November
Days left for picking	175
Daylight	12:41 on 1 April, 13:55 on 29 April
Watering outdoors when fruiting (card)	every 5 days; the driest month, August, has 3 rainy days

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

Watermelon in Lleida: care after planting

Planted on 29 April: in the first weeks water every 5 days.

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

29 April — 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 Lleida during the watermelon season

No month of the season averages above the watermelon card's 18–35 °C by day; the warmest, July, averages 34.6 °C. Months that stay below 18 °C even by day on average: November (16.5 °C) and December (12.2 °C). Nights average below 18 °C in April, May and September–December (3.9–16.9 °C).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
April	21.3	9	59	7	13:19
May	26.1	12.9	42	6	14:31
June	31.5	18.2	34	5	15:11
July	34.6	20.6	29	3	14:55
August	34.5	20.9	16	3	13:53
September	28.7	16.9	33	5	12:31
October	23.7	12.9	59	7	11:09
November	16.5	7	39	6	9:52
December	12.2	3.9	24	5	9:11

ERA5 2016–2025, Open-Meteo

Watermelon in nearby cities

All the nearest cities on our list plant watermelon later than Lleida; the closest date is in Tarragona, 1 day later.

City	Distance	Date	Difference
Tarragona	77 km	from 30 April	1 day later
Tortosa	90 km	from 7 May	8 days later
Manresa	101 km	13 May – 23 August	14 days later
Huesca	103 km	23 May – 17 August	24 days later
Zaragoza	126 km	30 April – 10 September	1 day later
Barcelona	132 km	24 May – 2 September	25 days later

Where to buy watermelon plants and seeds near Lleida

Buy plants ready to set out from 29 April to 9 September (from 8 April to 9 September for an unheated greenhouse); seed for raising your own is sown from 11 March to 12 August. Within 15 km of Lleida OpenStreetMap lists 2 garden centres, 6 farm-supply shops, 7 markets and 3 farm shops (collected 27 October 2026).

Fruits de Ponent — farm supply
Carretera de Lleida, 25132 Benavent de Segrià · 8 km
Mercat de Cappont — market
Carrer de Sant Joan de Mata 2, 25001 Lleida · 1 km · mercatdecappont.com
Mercat Municipal de Fleming — market
Mon–Thu, Sat 08:00–14:00; Fri 08:00–20:00 · 0 km
Mercat del camp d'Esports — market
Thu 09:00–14:00 · 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.

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