When to plant watermelons in Genoa: 20 June – 17 August

In Genoa, watermelon: sow for seedlings from 2 May to 20 July; plant into a greenhouse from 30 May to 17 August; plant out into open ground from 20 June to 17 August.

Watermelon in Genoa: soil, season and weather

In Genoa the soil, not frost, sets the date: the last frost is over around 23 March, but the top 7 cm of soil reaches 18 °C — the minimum on the watermelon card — only around 20 June, 89 days later.

Last spring frost	23 March
Top 7 cm of soil at 18 °C	20 June, 89 days after the last frost
Into an unheated greenhouse	30 May – 17 August; May outside: 8.8 °C at night, 16.5 °C by day; card 18–35 °C
First autumn frost	26 November, 159 days after the start
Days in the bed to the first harvest (card)	59
First harvest, if planted in this window	18 August – 15 October
Days left for picking	100
Daylight	15:03 on 23 May, 15:32 on 20 June
Watering outdoors when fruiting (card)	every 5 days; the driest month, July, has 9 rainy days

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

Watermelon in Genoa: care after planting

Planted on 20 June: in the first weeks water every 5 days.

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

20 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 Genoa during the watermelon season

No month of the season averages above the watermelon card's 18–35 °C by day; the warmest, August, averages 25.2 °C. Months that stay below 18 °C even by day on average: October (15.9 °C) and November (10 °C). Nights average below 18 °C in every month of the season, from 3.9 °C to 15.9 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
June	21.6	13.6	72	11	15:31
July	24.3	15.7	47	9	15:13
August	25.2	15.9	57	10	14:04
September	20.6	12.1	95	11	12:34
October	15.9	8.7	201	12	11:03
November	10	3.9	177	12	9:38

ERA5 2016–2025, Open-Meteo

Watermelon in nearby cities

All the nearest cities on our list plant watermelon earlier than Genoa; the closest date is in Pisa, 4 days earlier.

City	Distance	Date	Difference
Piacenza	93 km	11 May – 22 August	40 days earlier
Novara	118 km	23 May – 13 August	28 days earlier
Milan	119 km	12 May – 21 August	39 days earlier
Parma	119 km	19 May – 20 August	32 days earlier
Turin	122 km	16 May – 11 August	35 days earlier
Pisa	141 km	16 June – 9 August	4 days earlier

Where to buy watermelon plants and seeds near Genoa

Buy plants ready to set out from 20 June to 17 August (from 30 May to 17 August for an unheated greenhouse); seed for raising your own is sown from 2 May to 20 July. Within 15 km of Genoa OpenStreetMap lists 18 garden centres, 1 farm-supply shop, 2 plant nurseries, 16 markets and 8 farm shops (collected 20 October 2026).

Mercato Orientale — market
1 km · moggenova.it
Mercato del Carmine — market
1 km · mercatodelcarmine.it
Il Mercatino della Frutta — market
4 km · mercatinodellafrutta.com
Mercato Pozzo di Giano — 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