When to plant tomatoes in Guadalajara (Spain): 29 April – 4 August

In Guadalajara (Spain), tomato: sow for seedlings from 15 February to 13 June; plant into a greenhouse from 8 April to 4 August; plant out into open ground from 29 April to 4 August.

Tomato in Guadalajara (Spain): soil, season and weather

In Guadalajara (Spain) the soil, not frost, sets the date: the last frost is over around 25 March, but the top 7 cm of soil reaches 15 °C — the minimum on the tomato card — only around 29 April, 35 days later.

Last spring frost	25 March
Top 7 cm of soil at 15 °C	29 April, 35 days after the last frost
Into an unheated greenhouse	8 April – 4 August; April outside: 5.8 °C at night, 17.8 °C by day; card 16–27 °C
First autumn frost	24 November, 209 days after the start
Days in the bed to the first harvest (card)	70
First harvest, if planted in this window	8 July – 13 October
Days left for picking	139
Daylight	11:34 on 8 March, 13:51 on 29 April
Watering outdoors when fruiting (card)	every 3 days; the driest month, July, has 1 rainy day

Tomato in Guadalajara (Spain): care after planting

Planted on 29 April: in the first weeks water every 4 days.

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

29 April — feed: balanced (NPK)
27 May — 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 Guadalajara (Spain) during the tomato season

Days average above the tomato card's 16–27 °C in June (28.3 °C), July (32.9 °C) and August (32.5 °C). Months that stay below 16 °C even by day on average: November (13.7 °C). Nights average below 16 °C in April–June and September–November (4.4–14.6 °C).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
April	17.8	5.8	73	11	13:16
May	22.5	9.5	42	8	14:26
June	28.3	14.6	32	6	15:04
July	32.9	17.9	6	1	14:49
August	32.5	18	12	1	13:49
September	25.9	13.3	47	6	12:30
October	20.9	9.5	77	9	11:11
November	13.7	4.4	52	9	9:57

ERA5 2016–2025, Open-Meteo

Tomato in nearby cities

Around Guadalajara (Spain), Toledo is 15 days earlier and Segovia 21 days later.

City	Distance	Date	Difference
Madrid	51 km	26 April – 7 August	3 days earlier
Segovia	88 km	20 May – 19 July	21 days later
Cuenca (Spain)	107 km	8 May – 24 July	9 days later
Toledo	113 km	14 April – 16 August	15 days earlier
Aranda de Duero	124 km	11 May – 24 July	12 days later
Ávila	130 km	14 May – 28 July	15 days later

Where to buy tomato plants and seeds near Guadalajara (Spain)

Buy plants ready to set out from 29 April to 4 August (from 8 April to 4 August for an unheated greenhouse); seed for raising your own is sown from 15 February to 13 June. Within 15 km of Guadalajara (Spain) OpenStreetMap lists 3 garden centres, 1 plant nursery and 2 markets (collected 27 October 2026).

Huerta del Sotillo — garden centre
2 km · huertadelsotillo.com
Viveros Sanchez — garden centre
5 km
Botanie Garden Center — garden centre
5 km
El Serranillo — plant nursery
4 km · miteco.gob.es

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