When to plant tomatoes in Comodoro Rivadavia: 15 October – 1 February

In Comodoro Rivadavia, tomato: sow for seedlings from 3 August to 11 December; plant into a greenhouse from 24 September to 1 February; plant out into open ground from 15 October to 1 February. For plants and seeds, the places nearby include Deposito Rural (farm shop, 4 km); addresses and opening hours are below.

Tomato in Comodoro Rivadavia: soil, season and weather

In Comodoro Rivadavia the soil, not frost, sets the date: the last frost is over around 10 September, but the top 7 cm of soil reaches 15 °C — the minimum on the tomato card — only around 15 October, 35 days later.

Last spring frost	10 September
Top 7 cm of soil at 15 °C	15 October, 35 days after the last frost
Into an unheated greenhouse	24 September – 1 February; September outside: 5.7 °C at night, 14.9 °C by day; card 16–27 °C
First autumn frost	23 May, 221 days after the start
Days in the bed to the first harvest (card)	70
First harvest, if planted in this window	24 December – 11 April
Days left for picking	151
Daylight	10:36 on 24 August, 13:20 on 15 October
Watering outdoors when fruiting (card)	every 3 days; the driest month, November, has 2 rainy days

Tomato in Comodoro Rivadavia: care after planting

Planted on 15 October: in the first weeks water every 4 days.

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

15 October — feed: balanced (NPK)
12 November — 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 Comodoro Rivadavia during the tomato season

No month of the season averages above the tomato card's 16–27 °C by day; the warmest, January, averages 26.4 °C. Months that stay below 16 °C even by day on average: May (12.7 °C). Nights average below 16 °C in every month of the season, from 5.5 °C to 14.3 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
October	18.9	8.2	14	4	13:20
November	22.2	10.8	11	2	14:51
December	24.7	13	22	4	15:42
January	26.4	14.3	15	2	15:20
February	25.4	13.9	16	3	13:58
March	21.9	11.6	49	4	12:28
April	17.4	8.6	38	6	10:49
May	12.7	5.5	24	5	9:27

ERA5 2016–2025, Open-Meteo

Tomato in nearby cities

Around Comodoro Rivadavia, Trelew is 8 days earlier and Bariloche 80 days later.

City	Distance	Date	Difference
Trelew	338 km	7 October – 6 February	8 days earlier
Coyhaique	357 km	from 10 December	56 days later
Bariloche	607 km	from 3 January	80 days later
Río Gallegos	653 km	17 November – 15 December	33 days later
Puerto Montt	656 km	9 December – 14 February	55 days later
Osorno	745 km	25 November – 10 February	41 days later

Where to buy tomato plants and seeds near Comodoro Rivadavia

Buy plants ready to set out from 15 October to 1 February (from 24 September to 1 February for an unheated greenhouse); seed for raising your own is sown from 3 August to 11 December. Within 15 km of Comodoro Rivadavia OpenStreetMap lists 2 plant nurseries, 1 market and 1 farm shop (collected 27 October 2026).

Mercado Concentrador de la Costa — market
Sat 07:30–13:00; Sun–Fri 07:30–12:00, 15:30–19:30 · 4 km · delacosta.com.ar
Deposito Rural — farm shop
Avenida Hipólito Yrigoyen 2851, 9000 Comodoro Rivadavia · 08:30–12:30, 14:30–19:30 · 4 km
Jardín arido patagonico — plant nursery
4 km
Botánica Sur — plant nursery
7 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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