When to plant watermelons in Annecy: 19 June – 5 August

In Annecy, watermelon: sow for seedlings from 1 May to 8 July; plant into a greenhouse from 29 May to 5 August; plant out into open ground from 19 June to 5 August. For plants and seeds, the places nearby include Ferme de Vergloz (farm shop, 5 km) and Le jardin du Félan (farm shop, 6 km); addresses and opening hours are below.

Watermelon in Annecy: soil, season and weather

In Annecy the soil, not frost, sets the date: the last frost is over around 15 April, but the top 7 cm of soil reaches 18 °C — the minimum on the watermelon card — only around 19 June, 65 days later.

Last spring frost	15 April
Top 7 cm of soil at 18 °C	19 June, 65 days after the last frost
Into an unheated greenhouse	29 May – 5 August; May outside: 7.9 °C at night, 16.6 °C by day; card 18–35 °C
First autumn frost	14 November, 148 days after the start
Days in the bed to the first harvest (card)	59
First harvest, if planted in this window	17 August – 3 October
Days left for picking	89
Daylight	15:11 on 22 May, 15:44 on 19 June
Watering outdoors when fruiting (card)	every 5 days; the driest month, August, has 9 rainy days

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

Watermelon in Annecy: care after planting

Planted on 19 June: in the first weeks water every 5 days.

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

19 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 Annecy during the watermelon season

No month of the season averages above the watermelon card's 18–35 °C by day; the warmest, August, averages 24.7 °C. Months that stay below 18 °C even by day on average: October (15 °C) and November (8.5 °C). Nights average below 18 °C in every month of the season, from 1.7 °C to 14.8 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
June	22.2	13	113	14	15:43
July	24.5	14.8	99	11	15:24
August	24.7	14.8	80	9	14:11
September	19.5	11.1	92	11	12:36
October	15	7.1	117	11	11:00
November	8.5	1.7	128	14	9:30

ERA5 2016–2025, Open-Meteo

Watermelon in nearby cities

Around Annecy, Lyon is 23 days earlier and Aosta 12 days later.

City	Distance	Date	Difference
Geneva	32 km	8 June – 8 August	11 days earlier
Chambéry	41 km	3 June – 11 August	16 days earlier
Lausanne	78 km	19 June – 11 August	same day
Grenoble	86 km	28 June – 16 July	9 days later
Aosta	94 km	1 July – 13 July	12 days later
Lyon	101 km	27 May – 16 August	23 days earlier

Where to buy watermelon plants and seeds near Annecy

Buy plants ready to set out from 19 June to 5 August (from 29 May to 5 August for an unheated greenhouse); seed for raising your own is sown from 1 May to 8 July. Within 15 km of Annecy OpenStreetMap lists 14 garden centres, 4 farm-supply shops, 7 markets and 19 farm shops (collected 27 October 2026).

Ferme de Vergloz — farm shop
Route de Vergloz 46, 74600 Annecy · Tue 16:00–19:00; Fri 16:00–19:00 · 5 km
Le jardin du Félan — farm shop
Route des Provinces 196, 74370 Villaz · Friday evening · 6 km
Aux Caprices des Saisons — farm shop
Route de Marlioz 23, 74270 Sallenôves · Mon–Sat 09:00–12:30, 15:00–19:00; Sun closed · 16 km
Les Jardins du Taillefer — farm shop
Mon, Thu 16:30–19:00 · 14 km · jardins-du-taillefer.fr

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.

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