When to plant cucumbers in Ushuaia: 19 December – 23 December

In Ushuaia, cucumber: sow for seedlings from 31 October to 25 November; plant into a greenhouse from 28 November to 23 December; plant out into open ground from 19 December to 23 December.

Cucumber in Ushuaia: soil, season and weather

In the median year the top 7 cm of soil in Ushuaia does not reach 18 °C, the minimum on the cucumber card, before August; the date follows the last frost (12 December), and the bed stays cooler than the card asks. Planting out on 19 December leaves 38 days to the first autumn frost on 26 January, only 4 more than the card's 34 days to the first harvest; an unheated greenhouse, three weeks earlier, would add 21.

Last spring frost	12 December
Into an unheated greenhouse	28 November – 23 December; November outside: 2 °C at night, 9 °C by day; card 18–25 °C
First autumn frost	26 January, 38 days after the start
Days in the bed to the first harvest (card)	34
First harvest, if planted in this window	22 January – 26 January
Days left for picking	4
Daylight	16:21 on 21 November, 17:19 on 19 December
Watering outdoors when fruiting (card)	every 2 days; the driest month, December, has 22 rainy days

The same dates in Ushuaia hold for Tomato, Bell Pepper, Eggplant, Zucchini, Pumpkin and Watermelon.

Cucumber in Ushuaia: care after planting

Planted on 19 December: in the first weeks water every 4 days.

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

26 December — feed: nitrogen

Pests and diseases of cucumber 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 Ushuaia during the cucumber season

No month of the season averages above the cucumber card's 18–35 °C by day; the warmest, January, averages 11 °C. Months that stay below 18 °C even by day on average: December (10.2 °C) and January (11 °C). Nights average below 18 °C in every month of the season, from 3.3 °C to 4.3 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
December	10.2	3.3	104	22	17:16
January	11	4.3	116	23	16:42

ERA5 2016–2025, Open-Meteo

Cucumber in nearby cities

Around Ushuaia, Trelew is 58 days earlier and Puerto Montt 10 days later.

City	Distance	Date	Difference
Punta Arenas	250 km	4 November – 21 January	45 days earlier
Río Gallegos	360 km	12 December – 20 January	7 days earlier
Comodoro Rivadavia	997 km	1 November – 8 March	48 days earlier
Coyhaique	1,061 km	10 December – 11 December	9 days earlier
Trelew	1,304 km	22 October – 13 March	58 days earlier
Puerto Montt	1,522 km	29 December – 21 March	10 days later

Where to buy cucumber plants and seeds near Ushuaia

Buy plants ready to set out from 19 December to 23 December (from 28 November to 23 December for an unheated greenhouse); seed for raising your own is sown from 31 October to 25 November. Within 15 km of Ushuaia OpenStreetMap lists 3 markets (collected 27 October 2026).

Mar de Cobos — market
2 km
Champita — market
2 km
Mercado De la Costa — market
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.

Questions