When to plant watermelons in Yakutsk: 28 June – 21 July

In Yakutsk, watermelon: sow for seedlings from 10 May to 23 June; plant into a greenhouse from 7 June to 21 July; plant out into open ground from 28 June to 21 July. For plants and seeds, the places nearby include Баат (farm shop, 2 km) and Индигирка, магазин (farm shop, 6 km); addresses and opening hours are below.

Watermelon in Yakutsk: soil, season and weather

In Yakutsk the soil, not frost, sets the date: the last frost is over around 20 May, but the top 7 cm of soil reaches 18 °C — the minimum on the watermelon card — only around 28 June, 39 days later. 82 days separate planting out (28 June) from the first autumn frost (18 September); the card's 59 days to the first harvest leave 23 for picking, so a start 3 weeks late would still fit.

Last spring frost	20 May
Top 7 cm of soil at 18 °C	28 June, 39 days after the last frost
Into an unheated greenhouse	7 June – 21 July; June outside: 11.3 °C at night, 23.4 °C by day; card 18–35 °C
First autumn frost	18 September, 82 days after the start
Days in the bed to the first harvest (card)	59
First harvest, if planted in this window	26 August – 18 September
Days left for picking	23
Daylight	18:57 on 31 May, 19:42 on 28 June
Watering outdoors when fruiting (card)	every 5 days; the driest month, June, has 5 rainy days

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

Watermelon in Yakutsk: care after planting

Planted on 28 June: in the first weeks water every 5 days.

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

28 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 Yakutsk during the watermelon season

No month of the season averages above the watermelon card's 18–35 °C by day; the warmest, July, averages 25.3 °C. Months that stay below 18 °C even by day on average: September (11 °C). Nights average below 18 °C in every month of the season, from 2.6 °C to 14.9 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
June	23.4	11.3	26	5	19:41
July	25.3	14.9	40	8	18:49
August	21	11.3	44	8	16:03
September	11	2.6	36	8	13:02

ERA5 2016–2025, Open-Meteo

Watermelon in nearby cities

Around Yakutsk, Ulan-Ude is 16 days earlier and Vladivostok 8 days later.

City	Distance	Date	Difference
Blagoveshchensk	1,313 km	15 June – 24 June	13 days earlier
Chita	1,474 km	22 June – 26 July	6 days earlier
Khabarovsk	1,543 km	15 June – 7 July	13 days earlier
Ulan-Ude	1,742 km	12 June – 20 June	16 days earlier
Irkutsk	1,857 km	15 June – 21 June	13 days earlier
Vladivostok	2,108 km	6 July – 27 July	8 days later

Where to buy watermelon plants and seeds near Yakutsk

Buy plants ready to set out from 28 June to 21 July (from 7 June to 21 July for an unheated greenhouse); seed for raising your own is sown from 10 May to 23 June. Within 15 km of Yakutsk OpenStreetMap lists 3 markets and 5 farm shops (collected 27 October 2026).

Kruzhalo — market
улица Аммосова 1, 677018 Якутск · 1 km
Сайсары — market
улица Лермонтова 62/2БА, 677005 Якутск · 1 km
Баат — farm shop
Ильменская улица 27Б, 677008 Якутск · 2 km
Индигирка, магазин — farm shop
улица Можайского 19/3 А, 677014 Якутск · 6 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.

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