When to plant watermelons in Pontevedra: from 26 May

In Pontevedra, watermelon: sow for seedlings from 7 April; plant into a greenhouse from 5 May; plant out into open ground from 26 May. There is no autumn frost here, so the frost dates set no end to the window.

Watermelon in Pontevedra: soil, season and weather

In Pontevedra the soil, not frost, sets the date: the last frost is over around 22 January, but the top 7 cm of soil reaches 18 °C — the minimum on the watermelon card — only around 26 May, 124 days later. Pontevedra has no autumn frost in the median year, so frost does not end the season.

Last spring frost	22 January
Top 7 cm of soil at 18 °C	26 May, 124 days after the last frost
Into an unheated greenhouse	from 5 May; May outside: 11.8 °C at night, 20.3 °C by day; card 18–35 °C
Days in the bed to the first harvest (card)	59
First harvest, if planted in this window	from 24 July
Daylight	13:55 on 28 April, 14:55 on 26 May
Watering outdoors when fruiting (card)	every 5 days; the driest month, July, has 5 rainy days

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

Watermelon in Pontevedra: care after planting

Planted on 26 May: in the first weeks water every 5 days.

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

26 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 Pontevedra during the watermelon season

No month of the season averages above the watermelon card's 18–35 °C by day; the warmest, August, averages 26.2 °C. Nights average below 18 °C in every month of the season, from 11.8 °C to 16.6 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
May	20.3	11.8	116	12	14:35
June	22.3	14.3	80	10	15:16
July	25.7	16.3	26	5	15:00
August	26.2	16.6	35	5	13:56
September	23.3	14.7	87	9	12:32
October	20.4	12.8	260	14	11:07

ERA5 2016–2025, Open-Meteo

Watermelon in nearby cities

Around Pontevedra, Vigo is 17 days earlier and Santiago de Compostela 10 days later.

City	Distance	Date	Difference
Vigo	23 km	from 9 May	17 days earlier
Santiago de Compostela	51 km	5 June – 7 September	10 days later
Ourense	65 km	1 June – 24 August	6 days later
Viana do Castelo	84 km	30 May – 2 September	4 days later
Braga	100 km	24 May – 13 September	2 days earlier
A Coruña	105 km	from 5 June	10 days later

Where to buy watermelon plants and seeds near Pontevedra

Buy plants ready to set out from 26 May (from 5 May for an unheated greenhouse); seed for raising your own is sown from 7 April. Within 15 km of Pontevedra OpenStreetMap lists 2 garden centres, 3 farm-supply shops, 1 plant nursery, 9 markets and 2 farm shops (collected 27 October 2026).

O Piñeiro — garden centre
6 km · opineiro.es
Norfor Figueirido — plant nursery
6 km · viverosence.es
Mercado de Abastos de Pontevedra — market
1 km
Praza de Abastos — market
5 km

Questions