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When to plant tomatoes in Coyhaique

In Coyhaique, tomato: sow for seedlings from 28 September; plant into a greenhouse from 19 November; plant out into open ground from 10 December. The frost-free season here is shorter than the 70 days the crop needs from planting to harvest (by its card): grow it in a greenhouse or choose an early variety.

Tomato in Coyhaique: soil, season and weather

In the median year the top 7 cm of soil in Coyhaique does not reach 15 °C, the minimum on the tomato card, before August; the date follows the last frost (3 December), and the bed stays cooler than the card asks. Only 35 days lie between planting out (10 December) and the first autumn frost (14 January), against the card's 70 days to the first harvest: even an unheated greenhouse, three weeks earlier, falls 14 days short without heat or a faster variety.

Last spring frost3 December
Into an unheated greenhousefrom 19 November; November outside: 2.1 °C at night, 10.8 °C by day; card 16–27 °C
First autumn frost14 January, 35 days after the start
Days in the bed to the first harvest (card)70
Days left for picking-35
Daylight13:32 on 19 October, 15:36 on 10 December
Watering outdoors when fruiting (card)every 3 days; the driest month, January, has 13 rainy days

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

Tomato in Coyhaique: care after planting

Planted on 10 December: in the first weeks water every 4 days.

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

  • 10 December — feed: balanced (NPK)
  • 7 January — feed: nitrogen

Pests and diseases of tomato 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 Coyhaique during the tomato season

No month of the season averages above the tomato card's 16–27 °C by day; the warmest, January, averages 14.2 °C. Months that stay below 16 °C even by day on average: December (13 °C) and January (14.2 °C). Nights average below 16 °C in every month of the season, from 4.2 °C to 5 °C.

MonthDay, °CNight, °CRain, mmRainy daysDaylight on the 15th
December134.2991315:40
January14.25881315:17

ERA5 2016–2025, Open-Meteo

Tomato in nearby cities

Around Coyhaique, Trelew is 64 days earlier and Bariloche 24 days later.

CityDistanceDateDifference
Comodoro Rivadavia357 km15 October – 1 February56 days earlier
Puerto Montt461 km9 December – 14 February1 day earlier
Bariloche495 kmfrom 3 January24 days later
Osorno563 km25 November – 10 February15 days earlier
Trelew595 km7 October – 6 February64 days earlier
Valdivia648 km18 November – 22 February22 days earlier

Where to buy tomato plants and seeds near Coyhaique

Buy plants ready to set out from 10 December (from 19 November for an unheated greenhouse); seed for raising your own is sown from 28 September. Within 15 km of Coyhaique OpenStreetMap lists 3 markets (collected 28 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant tomatoes in Coyhaique?

In Coyhaique, tomato: sow for seedlings from 28 September; plant into a greenhouse from 19 November; plant out into open ground from 10 December. The frost-free season here is shorter than the 70 days the crop needs from planting to harvest (by its card): grow it in a greenhouse or choose an early variety.

When to sow tomatoes for seedlings in Coyhaique?

Sow for seedlings from 28 September.

When is the last spring frost in Coyhaique?

Last spring frost around 3 December, first autumn frost around 14 January.

Other crops in Coyhaique, with their dates