When to plant watermelons in Braga: 24 May – 13 September

In Braga, watermelon: sow for seedlings from 5 April to 16 August; plant into a greenhouse from 3 May to 13 September; plant out into open ground from 24 May to 13 September.

Watermelon in Braga: soil, season and weather

In Braga the soil, not frost, sets the date: the last frost is over around 25 January, but the top 7 cm of soil reaches 18 °C — the minimum on the watermelon card — only around 24 May, 119 days later.

Last spring frost	25 January
Top 7 cm of soil at 18 °C	24 May, 119 days after the last frost
Into an unheated greenhouse	3 May – 13 September; May outside: 11.3 °C at night, 21.6 °C by day; card 18–35 °C
First autumn frost	23 December, 213 days after the start
Days in the bed to the first harvest (card)	59
First harvest, if planted in this window	22 July – 11 November
Days left for picking	154
Daylight	13:47 on 26 April, 14:47 on 24 May
Watering outdoors when fruiting (card)	every 5 days; the driest month, July, has 4 rainy days

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

Watermelon in Braga: care after planting

Planted on 24 May: in the first weeks water every 5 days.

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

24 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 Braga during the watermelon season

No month of the season averages above the watermelon card's 18–35 °C by day; the warmest, August, averages 27.9 °C. Months that stay below 18 °C even by day on average: November (16.3 °C) and December (14.2 °C). Nights average below 18 °C in every month of the season, from 6.6 °C to 16.1 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
May	21.6	11.3	99	11	14:30
June	23.9	13.8	63	9	15:10
July	27.5	16.1	18	4	14:54
August	27.9	16.1	19	3	13:53
September	25.1	14.4	82	7	12:31
October	21.6	12.3	216	14	11:09
November	16.3	8.7	220	15	9:52
December	14.2	6.6	216	15	9:11

ERA5 2016–2025, Open-Meteo

Watermelon in nearby cities

Around Braga, Vigo is 15 days earlier and Ourense 8 days later.

City	Distance	Date	Difference
Viana do Castelo	37 km	30 May – 2 September	6 days later
Porto	47 km	22 May – 9 September	2 days earlier
Vila Real	63 km	18 May – 12 September	6 days earlier
Vigo	80 km	from 9 May	15 days earlier
Ourense	99 km	1 June – 24 August	8 days later
Pontevedra	100 km	from 26 May	2 days later

Where to buy watermelon plants and seeds near Braga

Buy plants ready to set out from 24 May to 13 September (from 3 May to 13 September for an unheated greenhouse); seed for raising your own is sown from 5 April to 16 August. Within 15 km of Braga OpenStreetMap lists 9 garden centres, 3 farm-supply shops, 1 plant nursery, 19 markets and 2 farm shops (collected 27 October 2026).

Puratos — market
3 km
Feira dos Frescos — market
6 km
Feira — market
13 km
Nfrutas — 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