GreenlyWhen to plant tomatoes in Leiria: from 9 April
In Leiria, tomato: sow for seedlings from 26 January; plant into a greenhouse from 19 March; plant out into open ground from 9 April. There is no autumn frost here, so the frost dates set no end to the window. For plants and seeds, the places nearby include Agriloja (farm supply, 2 km) and Agro Carvalhinha (farm supply, 3 km); addresses and opening hours are below.
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Tomato in Leiria: soil, season and weather
In Leiria the soil, not frost, sets the date: the last frost is over around 22 January, but the top 7 cm of soil reaches 15 °C — the minimum on the tomato card — only around 9 April, 77 days later. Leiria has no autumn frost in the median year, so frost does not end the season.
| Last spring frost | 22 January |
|---|---|
| Top 7 cm of soil at 15 °C | 9 April, 77 days after the last frost |
| Into an unheated greenhouse | from 19 March; March outside: 7.9 °C at night, 16.7 °C by day; card 16–27 °C |
| Days in the bed to the first harvest (card) | 70 |
| First harvest, if planted in this window | from 18 June |
| Daylight | 10:44 on 16 February, 12:59 on 9 April |
| Watering outdoors when fruiting (card) | every 3 days; the driest month, August, has 1 rainy day |
Tomato in Leiria: care after planting
Planted on 9 April: in the first weeks water every 4 days.
Feeding, by the card’s schedule from that day:
- 9 April — feed: balanced (NPK)
- 7 May — feed: nitrogen
Pests and diseases of tomato to watch for:
- Bacterial canker of tomato
- Tomato leaf mould
- Late Blight
- Bacterial spot
- Fruit cracking
- Bacterial wilt (brown rot of potato)
Dates count from the first planting day of the window above; a later planting moves them by as many days.
Weather in Leiria during the tomato season
Days average above the tomato card's 16–27 °C in August (27.7 °C). Nights average below 16 °C in every month of the season, from 9.8 °C to 15.7 °C.
| Month | Day, °C | Night, °C | Rain, mm | Rainy days | Daylight on the 15th |
|---|---|---|---|---|---|
| April | 19.1 | 9.8 | 112 | 14 | 13:14 |
| May | 22 | 11.8 | 57 | 9 | 14:21 |
| June | 24.1 | 14.1 | 46 | 9 | 14:58 |
| July | 27 | 15.6 | 9 | 3 | 14:44 |
| August | 27.7 | 15.7 | 6 | 1 | 13:46 |
| September | 25.9 | 14.6 | 37 | 6 | 12:30 |
ERA5 2016–2025, Open-Meteo
Tomato in nearby cities
Around Leiria, Santarém is 7 days earlier and Viseu 18 days later.
Where to buy tomato plants and seeds near Leiria
Buy plants ready to set out from 9 April (from 19 March for an unheated greenhouse); seed for raising your own is sown from 26 January. Within 15 km of Leiria OpenStreetMap lists 2 garden centres, 4 farm-supply shops, 2 plant nurseries and 8 markets (collected 27 October 2026).
- My Garden — garden centre
IC2 km107.7 30, 2480-060 Porto de Mós · 13 km - Agriloja — farm supply
Rua da Cooperativa 2, 2410-262 Leiria · Mon–Sat 08:30–20:00; Sun 09:00–13:00 · 2 km · agriloja.pt - JardiRega — farm supply
Rua das Cancelas 24, 2440-015 Batalha · Mon–Fri 09:00–13:00, 14:00–18:00 · 10 km · jardirega.pt - Agro Carvalhinha — farm supply
Rua Padre José de Sousa e Silva 1014, 2410-485 Barreira · 3 km
Places: © OpenStreetMap contributors, ODbL.
- How to grow tomato
- All frost dates and weather of Leiria
- Shops and markets: Leiria
- Selling a surplus in Portugal
- When to plant tomatoes in Portugal
- Moon planting calendar for November 2026
- How we calculate the dates
Questions
When to plant tomatoes in Leiria?
In Leiria, tomato: sow for seedlings from 26 January; plant into a greenhouse from 19 March; plant out into open ground from 9 April. There is no autumn frost here, so the frost dates set no end to the window.
When to sow tomatoes for seedlings in Leiria?
Sow for seedlings from 26 January.
