When to plant watermelons in Iqaluit: 25 June – 6 July

In Iqaluit, watermelon: sow for seedlings from 7 May to 8 June; plant into a greenhouse from 4 June to 6 July; plant out into open ground from 25 June to 6 July.

Watermelon in Iqaluit: soil, season and weather

In the median year the top 7 cm of soil in Iqaluit does not reach 18 °C, the minimum on the watermelon card, before August; the date follows the last frost (18 June), and the bed stays cooler than the card asks. Planting out on 25 June leaves 70 days to the first autumn frost on 3 September, only 11 more than the card's 59 days to the first harvest; an unheated greenhouse, three weeks earlier, would add 21.

Last spring frost	18 June
Into an unheated greenhouse	4 June – 6 July; June outside: 0.7 °C at night, 6.1 °C by day; card 18–35 °C
First autumn frost	3 September, 70 days after the start
Days in the bed to the first harvest (card)	59
First harvest, if planted in this window	23 August – 3 September
Days left for picking	11
Daylight	19:29 on 28 May, 20:48 on 25 June
Watering outdoors when fruiting (card)	every 5 days; the driest month, June, has 11 rainy days

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

Watermelon in Iqaluit: care after planting

Planted on 25 June: in the first weeks water every 5 days.

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

25 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 Iqaluit during the watermelon season

No month of the season averages above the watermelon card's 18–35 °C by day; the warmest, July, averages 11.6 °C. Months that stay below 18 °C even by day on average: June–September (5–11.6 °C). Nights average below 18 °C in every month of the season, from 0.4 °C to 5.2 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
June	6.1	0.7	46	11	20:43
July	11.6	5.2	75	12	19:35
August	10.8	4.8	76	13	16:24
September	5	0.4	63	11	13:06

ERA5 2016–2025, Open-Meteo

Watermelon in nearby cities

Around Iqaluit, Trois-Rivières is 25 days earlier and Saguenay 7 days later.

City	Distance	Date	Difference
Saguenay	1,710 km	2 July – 13 July	7 days later
Quebec City	1,891 km	21 June – 19 July	4 days earlier
Trois-Rivières	1,952 km	31 May – 20 July	25 days earlier
Charlottetown	1,977 km	27 June – 24 July	2 days later
Moncton	1,977 km	26 June – 26 July	1 day later
Fredericton	1,983 km	28 June – 19 July	3 days later

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