When to plant tomatoes in Paysandú: 27 July – 6 March

In Paysandú, tomato: sow for seedlings from 15 May to 14 January; plant into a greenhouse from 6 July to 6 March; plant out into open ground from 27 July to 6 March.

Tomato in Paysandú: soil, season and weather

In Paysandú the soil, not frost, sets the date: the last frost is over around 15 July, but the top 7 cm of soil reaches 15 °C — the minimum on the tomato card — only around 27 July, 12 days later.

Last spring frost	15 July
Top 7 cm of soil at 15 °C	27 July, 12 days after the last frost
Into an unheated greenhouse	6 July – 6 March; July outside: 8 °C at night, 16.7 °C by day; card 16–27 °C
First autumn frost	26 June, 335 days after the start
Days in the bed to the first harvest (card)	70
First harvest, if planted in this window	5 October – 15 May
Days left for picking	265
Daylight	10:07 on 5 June, 10:26 on 27 July
Watering outdoors when fruiting (card)	every 3 days; the driest month, June, has 7 rainy days

Tomato in Paysandú: care after planting

Planted on 27 July: in the first weeks water every 4 days.

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

27 July — feed: balanced (NPK)
24 August — 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 Paysandú during the tomato season

Days average above the tomato card's 16–27 °C in November–March (27.4–30.8 °C). Nights average below 16 °C in April–November (8–15.9 °C).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
July	16.7	8	81	7	10:13
August	18.9	8.8	76	7	10:55
September	20.8	10.7	91	8	11:52
October	23.7	13.1	104	9	12:51
November	27.5	15.9	84	7	13:46
December	29.5	18.2	110	8	14:15
January	30.8	20.4	126	8	14:02
February	29.8	19.8	131	8	13:14
March	27.4	17.8	107	9	12:19
April	23.6	14.7	155	9	11:19
May	19.2	11.1	93	8	10:29
June	17	8.3	74	7	10:02

ERA5 2016–2025, Open-Meteo

Tomato in nearby cities

Around Paysandú, Salto is 3 days earlier and Buenos Aires 37 days later.

City	Distance	Date	Difference
Salto	105 km	from 24 July	3 days earlier
Tacuarembó	209 km	28 July – 22 February	1 day later
Paraná	240 km	from 30 July	3 days later
Colonia del Sacramento	240 km	from 19 August	23 days later
Rosario	250 km	15 August – 23 February	19 days later
Buenos Aires	255 km	from 2 September	37 days later

Where to buy tomato plants and seeds near Paysandú

Buy plants ready to set out from 27 July to 6 March (from 6 July to 6 March for an unheated greenhouse); seed for raising your own is sown from 15 May to 14 January. Within 15 km of Paysandú OpenStreetMap lists 1 market (collected 27 October 2026).

Mercado Municipal — market
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.

Questions