When to plant watermelons in Ourense: 1 June – 24 August

In Ourense, watermelon: sow for seedlings from 13 April to 27 July; plant into a greenhouse from 11 May to 24 August; plant out into open ground from 1 June to 24 August.

Watermelon in Ourense: soil, season and weather

In Ourense the soil, not frost, sets the date: the last frost is over around 25 March, but the top 7 cm of soil reaches 18 °C — the minimum on the watermelon card — only around 1 June, 68 days later.

Last spring frost	25 March
Top 7 cm of soil at 18 °C	1 June, 68 days after the last frost
Into an unheated greenhouse	11 May – 24 August; May outside: 8.8 °C at night, 19.6 °C by day; card 18–35 °C
First autumn frost	3 December, 185 days after the start
Days in the bed to the first harvest (card)	59
First harvest, if planted in this window	30 July – 22 October
Days left for picking	126
Daylight	14:10 on 4 May, 15:03 on 1 June
Watering outdoors when fruiting (card)	every 5 days; the driest month, August, has 4 rainy days

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

Watermelon in Ourense: care after planting

Planted on 1 June: in the first weeks water every 5 days.

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

1 June — 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 Ourense during the watermelon season

No month of the season averages above the watermelon card's 18–35 °C by day; the warmest, August, averages 27.7 °C. Months that stay below 18 °C even by day on average: November (13.3 °C) and December (11.1 °C). Nights average below 18 °C in every month of the season, from 4.2 °C to 14.3 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
June	22.7	11.9	67	11	15:16
July	26.9	14	19	5	15:00
August	27.7	14.3	16	4	13:56
September	23.4	12	54	8	12:32
October	19.5	10	143	13	11:07
November	13.3	6.2	141	15	9:49
December	11.1	4.2	144	14	9:06

ERA5 2016–2025, Open-Meteo

Watermelon in nearby cities

Around Ourense, Vigo is 23 days earlier and Santiago de Compostela 4 days later.

City	Distance	Date	Difference
Pontevedra	65 km	from 26 May	6 days earlier
Vigo	72 km	from 9 May	23 days earlier
Lugo	78 km	1 June – 25 August	same day
Santiago de Compostela	81 km	5 June – 7 September	4 days later
Braga	99 km	24 May – 13 September	8 days earlier
Ponferrada	107 km	1 June – 18 August	same day

Where to buy watermelon plants and seeds near Ourense

Buy plants ready to set out from 1 June to 24 August (from 11 May to 24 August for an unheated greenhouse); seed for raising your own is sown from 13 April to 27 July. Within 15 km of Ourense OpenStreetMap lists 2 garden centres, 4 farm-supply shops, 3 plant nurseries and 2 markets (collected 27 October 2026).

Plaza de Abastos Provisional — market
Praza de Abastos Provisional · 1 km
Viveiros Alecrín — garden centre
10 km · viveirosalecrin.com
Jesús — garden centre
15 km
Viveiros Mende — plant nursery
2 km · viverosourense.com

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