When to plant watermelons in Bergamo: 31 May – 9 August

In Bergamo, watermelon: sow for seedlings from 12 April to 12 July; plant into a greenhouse from 10 May to 9 August; plant out into open ground from 31 May to 9 August.

Watermelon in Bergamo: soil, season and weather

In Bergamo the soil, not frost, sets the date: the last frost is over around 6 April, but the top 7 cm of soil reaches 18 °C — the minimum on the watermelon card — only around 31 May, 55 days later.

Last spring frost	6 April
Top 7 cm of soil at 18 °C	31 May, 55 days after the last frost
Into an unheated greenhouse	10 May – 9 August; May outside: 9.9 °C at night, 19 °C by day; card 18–35 °C
First autumn frost	18 November, 171 days after the start
Days in the bed to the first harvest (card)	59
First harvest, if planted in this window	29 July – 7 October
Days left for picking	112
Daylight	14:23 on 3 May, 15:26 on 31 May
Watering outdoors when fruiting (card)	every 5 days; the driest month, November, has 11 rainy days

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

Watermelon in Bergamo: care after planting

Planted on 31 May: in the first weeks water every 5 days.

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

31 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 Bergamo during the watermelon season

No month of the season averages above the watermelon card's 18–35 °C by day; the warmest, July, averages 26.4 °C. Months that stay below 18 °C even by day on average: October (16.9 °C) and November (10.9 °C). Nights average below 18 °C in every month of the season, from 3.3 °C to 16.8 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
May	19	9.9	210	21	14:54
June	24.5	14.9	178	16	15:41
July	26.4	16.7	193	17	15:23
August	26.2	16.8	176	15	14:10
September	21.5	12.6	181	14	12:35
October	16.9	8.7	161	13	11:00
November	10.9	3.3	133	11	9:31

ERA5 2016–2025, Open-Meteo

Watermelon in nearby cities

Around Bergamo, Piacenza is 20 days earlier and Bellinzona 19 days later.

City	Distance	Date	Difference
Brescia	46 km	15 May – 19 August	16 days earlier
Milan	46 km	12 May – 21 August	19 days earlier
Como	47 km	29 May – 14 August	2 days earlier
Lugano	65 km	29 May – 26 August	2 days earlier
Piacenza	72 km	11 May – 22 August	20 days earlier
Bellinzona	74 km	19 June – 6 August	19 days later

Where to buy watermelon plants and seeds near Bergamo

Buy plants ready to set out from 31 May to 9 August (from 10 May to 9 August for an unheated greenhouse); seed for raising your own is sown from 12 April to 12 July. Within 15 km of Bergamo OpenStreetMap lists 10 garden centres, 1 farm-supply shop, 6 plant nurseries, 7 markets and 8 farm shops (collected 27 October 2026).

Carrara VIvai — plant nursery
12 km
Mercato ortofrutticolo — market
3 km
Piazza Matteotti — market
4 km
Mercato settimanale di Locate Bergamasco — market
8 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