When to plant watermelons in Salerno: 7 June – 1 September

In Salerno, watermelon: sow for seedlings from 19 April to 4 August; plant into a greenhouse from 17 May to 1 September; plant out into open ground from 7 June to 1 September.

Watermelon in Salerno: soil, season and weather

In Salerno the soil, not frost, sets the date: the last frost is over around 8 March, but the top 7 cm of soil reaches 18 °C — the minimum on the watermelon card — only around 7 June, 91 days later.

Last spring frost	8 March
Top 7 cm of soil at 18 °C	7 June, 91 days after the last frost
Into an unheated greenhouse	17 May – 1 September; May outside: 10.2 °C at night, 18.7 °C by day; card 18–35 °C
First autumn frost	11 December, 187 days after the start
Days in the bed to the first harvest (card)	59
First harvest, if planted in this window	5 August – 30 October
Days left for picking	128
Daylight	14:16 on 10 May, 14:59 on 7 June
Watering outdoors when fruiting (card)	every 5 days; the driest month, July, has 5 rainy days

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

Watermelon in Salerno: care after planting

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

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

7 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 Salerno during the watermelon season

No month of the season averages above the watermelon card's 18–35 °C by day; the warmest, July, averages 28.3 °C. Months that stay below 18 °C even by day on average: November (13.6 °C) and December (10.3 °C). Nights average below 18 °C in June and August–December (4.1–17.9 °C).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
June	25	15.3	52	8	15:04
July	28.3	18	31	5	14:49
August	28	17.9	44	10	13:49
September	22.9	14.4	118	11	12:31
October	18.7	10.9	120	12	11:11
November	13.6	7.3	253	16	9:56
December	10.3	4.1	150	12	9:17

ERA5 2016–2025, Open-Meteo

Watermelon in nearby cities

Around Salerno, Foggia is 45 days earlier and Potenza 7 days later.

City	Distance	Date	Difference
Potenza	86 km	14 June – 16 August	7 days later
Foggia	108 km	23 April – 10 September	45 days earlier
Bari	182 km	from 4 May	34 days earlier
Cosenza	198 km	3 June – 21 August	4 days earlier
Pescara	204 km	8 May – 31 August	30 days earlier
Taranto	209 km	from 25 April	43 days earlier

Where to buy watermelon plants and seeds near Salerno

Buy plants ready to set out from 7 June to 1 September (from 17 May to 1 September for an unheated greenhouse); seed for raising your own is sown from 19 April to 4 August. Within 15 km of Salerno OpenStreetMap lists 2 garden centres, 1 farm-supply shop, 7 markets and 2 farm shops (collected 27 October 2026).

Vivaio Russo — garden centre
11 km
Vivaio Trezza Antonio — garden centre
11 km
Nuceria Zootecnica — farm supply
13 km
Area mercatale via Sabato Robertelli — 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