Greenly Garden

Last and first frost dates in Tortosa

Spain

Last spring frostaround 16 January
First autumn frostnone in ten years

Median of 2016–2025 for the 25 km grid cell of the city: the last day at or below 0 °C in spring and the first in autumn (ERA5 reanalysis via Open-Meteo). In a cold year a frost can come a week or two later — Greenly warns 48 hours ahead.

When is the last frost in Tortosa?

The last frost in Tortosa usually comes around 16 January: that is the median of 2016–2025, so in about half of those years the last night at or below 0 °C came later. Hardy crops start before it and frost-tender ones only after it: in the table below arugula can go into open ground from 26 December, while corn waits until 17 February.

When to sow and plant

CropSow for seedlingsPlant out in a greenhouseOpen ground
Achochafrom 30 Novemberfrom 9 Januaryfrom 30 January
Ageratumfrom 22 January—from 9 April
Arugula——sow from 26 December
Basilfrom 9 Marchfrom 16 Aprilfrom 7 May
Beet——sow from 26 December
Bell Pepperfrom 15 Februaryfrom 16 Aprilfrom 7 May
Black-eyed Susanfrom 8 November—from 30 January
Bok Choyfrom 5 Decemberfrom 9 Januaryfrom 30 January
Borage——sow from 23 January
Broad bean——sow from 26 December
Broccoli——sow from 26 December
Brussels Sproutsfrom 21 Octoberfrom 5 Decemberfrom 26 December
Busy Lizziefrom 31 October—from 23 January
Cabbage——sow from 26 December
Calendula——sow from 26 December
Carrot——sow from 26 December
Cauliflowerfrom 24 Octoberfrom 5 Decemberfrom 26 December
Celeriacfrom 24 Octoberfrom 9 Januaryfrom 30 January
Celeryfrom 24 Octoberfrom 9 Januaryfrom 30 January
Celosiafrom 18 Februaryfrom 4 Aprilfrom 25 April
Chamomile——sow from 26 December
Chayotefrom 31 Octoberfrom 27 Januaryfrom 17 February
Chickpea——sow from 26 December
Chicoryfrom 10 November—from 26 December
Chili Pepperfrom 15 Februaryfrom 16 Aprilfrom 7 May
China asterfrom 23 Februaryfrom 16 Aprilfrom 7 May
Chives——sow from 26 December
Cilantro——sow from 26 December
Corn——sow from 17 February
Corn poppy——sow from 26 December
Cosmosfrom 18 Februaryfrom 4 Aprilfrom 25 April
Cucumberfrom 19 Marchfrom 16 Aprilfrom 7 May
Daikon——sow from 26 December
Delphiniumfrom 7 October—from 26 December
Dill——sow from 26 December
Edging lobeliafrom 7 November—from 30 January
Eggplantfrom 15 Februaryfrom 16 Aprilfrom 7 May
Florence fennelfrom 25 Novemberfrom 9 Januaryfrom 30 January
Foxglovefrom 19 September—from 26 December
Garden sorrel——sow from 26 December
Green Beans——sow from 25 April
Hollyhock——sow from 26 December
Hyssop——sow from 26 December
Kale——sow from 26 December
Kiwanofrom 15 Februaryfrom 19 Marchfrom 9 April
Kohlrabi——sow from 26 December
Leekfrom 26 Septemberfrom 5 Decemberfrom 26 December
Lemon balm——sow from 26 December
Lettuce——sow from 26 December
Lisianthusfrom 9 Septemberfrom 5 Decemberfrom 26 December
Lovage——sow from 26 December
Luffafrom 5 Marchfrom 16 Aprilfrom 7 May
Marigoldfrom 28 Novemberfrom 9 Januaryfrom 30 January
Marjoramfrom 15 February—from 7 May
Melonfrom 19 Marchfrom 16 Aprilfrom 7 May
Microgreens——sow from 25 April
Moringafrom 26 Februaryfrom 22 Aprilfrom 13 May
Moss rosefrom 7 November—from 23 January
Mustard greens——sow from 26 December
Napa cabbagefrom 7 Decemberfrom 9 Januaryfrom 30 January
Nasturtiumfrom 2 Decemberfrom 9 Januaryfrom 30 January
Okrafrom 5 Marchfrom 16 Aprilfrom 7 May
Oreganofrom 6 Octoberfrom 5 Decemberfrom 26 December
Pansyfrom 10 Octoberfrom 5 Decemberfrom 26 December
Parsley——sow from 26 December
Parsnip——sow from 26 December
Peanutfrom 10 Marchfrom 16 Aprilfrom 7 May
Peas——sow from 26 December
Petuniafrom 12 Februaryfrom 16 Aprilfrom 7 May
Physalisfrom 2 Februaryfrom 19 Marchfrom 9 April
Pumpkinfrom 5 Marchfrom 16 Aprilfrom 7 May
Purple coneflowerfrom 4 October—from 26 December
Radish——sow from 26 December
Sagefrom 17 Octoberfrom 5 Decemberfrom 26 December
Scarlet sagefrom 26 January—from 9 April
Snapdragonfrom 1 Octoberfrom 5 Decemberfrom 26 December
Soybean——sow from 7 May
Spinach——sow from 26 December
Steviafrom 29 Januaryfrom 19 Marchfrom 9 April
Stock——sow from 26 December
Sunflower——sow from 25 April
Sweet alyssum——sow from 26 December
Sweet Cornfrom 27 Januaryfrom 18 Februaryfrom 11 March
Sweet peafrom 24 Octoberfrom 5 Decemberfrom 26 December
Sweet William——sow from 26 December
Swiss Chard——sow from 26 December
Thyme——sow from 26 December
Tomatofrom 26 Januaryfrom 19 Marchfrom 9 April
Turnip——sow from 26 December
Watercress——sow from 26 December
Watermelonfrom 19 Marchfrom 16 Aprilfrom 7 May
Zinniafrom 18 Marchfrom 22 Aprilfrom 13 May
Zucchinifrom 26 Marchfrom 16 Aprilfrom 7 May

Planting out: a week after the last frost once the soil is warm enough for the crop; frost-hardy crops three weeks before it; an unheated greenhouse three weeks earlier. Seedlings are sown so they are ready on that day. 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.

When the soil warms up in Tortosa

The day the top 7 cm of soil first averages each temperature over a week, median of 2016–2025 (ERA5 via Open-Meteo). The soil reaches 10 °C 14 days after the last spring frost and 15 °C 83 days after it.

SoilDateAgainst the last spring frost
5 °Calready in the first week of January—
10 °C30 January14 days later
15 °C9 April83 days later
18 °C7 May111 days later

Frost dates near Tortosa

Of the nearest cities on our list, the last spring frost ends earliest in Tarragona (12 January) and latest in Teruel (22 April).

CityDistanceLast spring frostFirst autumn frost
Tarragona70 km12 January—
Lleida90 km9 February19 December
Castellón de la Plana103 km12 January—
Teruel147 km22 April7 November
Manresa150 km18 March2 December

Seeds, seedlings and markets in Tortosa

Within 15 km of Tortosa OpenStreetMap lists 2 garden centres, 4 farm-supply shops, 3 markets and 1 farm shop (collected 28 October 2026). The nearest farm supply to the city centre is Dama de Elaia - Aceite de oliva, 12 km away.

Places: © OpenStreetMap contributors, ODbL.

Weather in Tortosa by month

Average weather in Tortosa over 2016–2025: the warmest month is August. Months that average 20 °C or more by day: May–October (23.4–31.7 °C). Months that average 30 °C or more by day: July (31.2 °C) and August (31.7 °C). No month averages below 0 °C at night; the coldest nights, in January, average 4.9 °C. About 626 mm of rain falls in a year, on 76 days; October is the wettest month (104 mm) and August the driest (20 mm).

MonthDay, °CNight, °CRain, mmRainy days
January14.34.9495
February166.1244
March17.57.6809
April19.89.5649
May23.813.1458
June28.417.8325
July31.220.3243
August31.720.8204
September27.317.4628
October23.413.81048
November17.99.1818
December156.2415

Average of the daily highs and lows, rain per month and days with at least 1 mm (ERA5 via Open-Meteo, the same grid cell as the frost dates).