When to plant tomatoes in Cusco: 3 September – 23 February

In Cusco, tomato: sow for seedlings from 22 June to 2 January; plant into a greenhouse from 13 August to 23 February; plant out into open ground from 3 September to 23 February.

Tomato in Cusco: soil, season and weather

In Cusco the soil, not frost, sets the date: the last frost is over around 3 August, but the top 7 cm of soil reaches 15 °C — the minimum on the tomato card — only around 3 September, 31 days later.

Last spring frost	3 August
Top 7 cm of soil at 15 °C	3 September, 31 days after the last frost
Into an unheated greenhouse	13 August – 23 February; August outside: 2.9 °C at night, 16.7 °C by day; card 16–27 °C
First autumn frost	14 June, 285 days after the start
Days in the bed to the first harvest (card)	70
First harvest, if planted in this window	12 November – 3 May
Days left for picking	215
Daylight	11:23 on 13 July, 11:52 on 3 September
Watering outdoors when fruiting (card)	every 3 days; the driest month, June, has 2 rainy days

Tomato in Cusco: care after planting

Planted on 3 September: in the first weeks water every 4 days.

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

3 September — feed: balanced (NPK)
1 October — 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 Cusco during the tomato season

No month of the season averages above the tomato card's 16–27 °C by day; the warmest, September, averages 17 °C. Months that stay below 16 °C even by day on average: December–June (14.7–15.8 °C). Nights average below 16 °C in every month of the season, from 2.5 °C to 6.3 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
September	17	4	27	9	12:01
October	16.9	5.1	73	18	12:23
November	16.8	6	118	21	12:44
December	15.8	6.2	155	24	12:55
January	15	5.9	187	26	12:50
February	14.7	6.3	163	25	12:32
March	14.7	5.7	135	23	12:11
April	15	4.7	59	15	11:48
May	15.4	3.7	24	8	11:30
June	15.6	2.5	6	2	11:20

ERA5 2016–2025, Open-Meteo

Tomato in nearby cities

Around Cusco, Sucre is 22 days earlier and La Paz 55 days later.

City	Distance	Date	Difference
Ayacucho	247 km	26 August – 8 February	8 days earlier
Puno	332 km	13 October – 3 January	40 days later
La Paz	527 km	28 October – 29 December	55 days later
Oruro	719 km	3 October – 8 January	30 days later
Cochabamba	756 km	21 August – 1 March	13 days earlier
Sucre	942 km	12 August – 10 March	22 days earlier

Where to buy tomato plants and seeds near Cusco

Buy plants ready to set out from 3 September to 23 February (from 13 August to 23 February for an unheated greenhouse); seed for raising your own is sown from 22 June to 2 January. Within 15 km of Cusco OpenStreetMap lists 9 farm-supply shops and 23 markets (collected 20 October 2026).

San Pedro Market — market
Calle Túpac Amaru 477, 08002 Cusco · Mon–Sun 06:00–18:00 · 2 km
Ccascaparo's Market — market
Calle Cascaparo Chico 700, 08002 · Mon–Sun 04:00–21:00 · 2 km
Mercado Tankarniyoc — market
Avenida Cusco, San Sebastián · public holidays, Mon–Sun 07:00–15:00 · 5 km
Mercado Wanchaq — market
Avenida Garcilaso · 06:00–18:00 · 1 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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