When to plant watermelons in Saguenay: 2 July – 13 July

In Saguenay, watermelon: sow for seedlings from 14 May to 15 June; plant into a greenhouse from 11 June to 13 July; plant out into open ground from 2 July to 13 July.

Watermelon in Saguenay: soil, season and weather

In Saguenay the soil, not frost, sets the date: the last frost is over around 14 May, but the top 7 cm of soil reaches 18 °C — the minimum on the watermelon card — only around 2 July, 49 days later. 112 days separate planting out (2 July) from the first autumn frost (22 October); the card's 59 days to the first harvest leave 53 for picking, so a start 7 weeks late would still fit.

Last spring frost	14 May
Top 7 cm of soil at 18 °C	2 July, 49 days after the last frost
Into an unheated greenhouse	11 June – 13 July; June outside: 11.4 °C at night, 21.7 °C by day; card 18–35 °C
First autumn frost	22 October, 112 days after the start
Days in the bed to the first harvest (card)	59
First harvest, if planted in this window	30 August – 10 September
Days left for picking	53
Daylight	15:54 on 4 June, 16:02 on 2 July
Watering outdoors when fruiting (card)	every 5 days; the driest month, September, has 13 rainy days

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

Watermelon in Saguenay: care after planting

Planted on 2 July: in the first weeks water every 5 days.

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

2 July — 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 Saguenay during the watermelon season

No month of the season averages above the watermelon card's 18–35 °C by day; the warmest, July, averages 24.2 °C. Months that stay below 18 °C even by day on average: October (11.9 °C). Nights average below 18 °C in every month of the season, from 4.4 °C to 14.8 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
July	24.2	14.8	173	16	15:44
August	23.1	14.1	144	14	14:23
September	18.9	10	118	13	12:39
October	11.9	4.4	126	14	10:54

ERA5 2016–2025, Open-Meteo

Watermelon in nearby cities

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

City	Distance	Date	Difference
Quebec City	180 km	21 June – 19 July	11 days earlier
Trois-Rivières	257 km	31 May – 20 July	32 days earlier
Sherbrooke	343 km	18 June – 18 July	14 days earlier
Montreal	377 km	30 May – 23 July	33 days earlier
Fredericton	432 km	28 June – 19 July	4 days earlier
Bangor	434 km	25 June – 25 July	7 days earlier

Where to buy watermelon plants and seeds near Saguenay

Buy plants ready to set out from 2 July to 13 July (from 11 June to 13 July for an unheated greenhouse); seed for raising your own is sown from 14 May to 15 June. Within 15 km of Saguenay OpenStreetMap lists 2 markets (collected 20 October 2026).

Halles centrales — market
1 km
Les Halles de la Rivière — market
14 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