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Last and first frost dates in Santiago de Compostela

Spain

In Santiago de Compostela the last spring frost usually comes around 6 February and the first autumn frost around 17 December, which leaves about 314 frost-free days (median of 2016–2025). Tomato seedlings can go into open ground from 14 May to 27 August.

Last spring frostaround 6 February
First autumn frostaround 17 December
Frost-free days314 days

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 Santiago de Compostela?

The last frost in Santiago de Compostela usually comes around 6 February: 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 16 January, while corn waits until 1 April. The first autumn frost follows around 17 December, about 314 days later: harvest or cover frost-tender crops before then.

When to sow and plant

CropSow for seedlingsPlant out in a greenhouseOpen ground
Achocha14 December – 8 September23 January – 18 October13 February – 18 October
Ageratumfrom 26 February—from 14 May
Arugula——sow 16 January – 12 November
Basil7 April – 15 October15 May – 22 November5 June – 22 November
Beet——sow 16 January – 18 October
Bell Pepper16 March – 28 June15 May – 27 August5 June – 27 August
Black-eyed Susanfrom 22 November—from 13 February
Bok Choy19 December – 26 October23 January – 30 November13 February – 30 November
Borage——sow 13 February – 23 October
Broad bean——sow 16 January – 8 September
Broccoli——sow 16 January – 1 September
Brussels Sprouts11 November – 30 July26 December – 13 September16 January – 13 September
Busy Lizziefrom 21 November—from 13 February
Cabbage——sow 16 January – 9 August
Calendula——sow from 16 January
Carrot——sow 16 January – 24 September
Cauliflower14 November – 1 September26 December – 13 October16 January – 13 October
Celeriac7 November – 29 June23 January – 14 September13 February – 14 September
Celery7 November – 9 July23 January – 24 September13 February – 24 September
Celosiafrom 22 Marchfrom 6 Mayfrom 27 May
Chamomile——sow 16 January – 13 October
Chayote13 December – 22 June11 March – 18 September1 April – 18 September
Chickpea——sow 16 January – 29 August
Chicory1 December – 23 September—16 January – 18 October
Chili Pepper16 March – 4 August15 May – 3 October5 June – 3 October
China asterfrom 24 Marchfrom 15 Mayfrom 5 June
Chives——sow 16 January – 4 October
Cilantro——sow 16 January – 14 October
Corn——sow 1 April – 29 August
Corn poppy——sow from 16 January
Cosmosfrom 22 Marchfrom 6 Mayfrom 27 May
Cucumber17 April – 4 September15 May – 2 October5 June – 2 October
Daikon——sow 16 January – 11 October
Delphiniumfrom 28 October—from 16 January
Dill——sow 16 January – 24 October
Edging lobeliafrom 21 November—from 13 February
Eggplant16 March – 28 June15 May – 27 August5 June – 27 August
Florence fennel9 December – 8 September23 January – 23 October13 February – 23 October
Foxglovefrom 10 October—from 16 January
Garden sorrel——sow 16 January – 12 October
Green Beans——sow 27 May – 6 September
Hollyhock——sow from 16 January
Hyssop——sow 16 January – 4 September
Kale——sow 16 January – 6 October
Kiwano22 March – 11 September23 April – 13 October14 May – 13 October
Kohlrabi——sow 16 January – 16 October
Leek17 October – 20 June26 December – 29 August16 January – 29 August
Lemon balm——sow 16 January – 8 October
Lettuce——sow 16 January – 21 October
Lisianthusfrom 30 Septemberfrom 26 Decemberfrom 16 January
Lovage——sow from 16 January
Luffa3 April – 6 July15 May – 17 August5 June – 17 August
Marigoldfrom 12 Decemberfrom 23 Januaryfrom 13 February
Marjoram16 March – 23 September—5 June – 22 November
Melon17 April – 22 August15 May – 19 September5 June – 19 September
Microgreens——sow 27 May – 3 December
Moringa7 April – 28 September1 June – 22 November22 June – 22 November
Moss rosefrom 28 November—from 13 February
Mustard greens——sow 16 January – 2 November
Napa cabbage21 December – 3 October23 January – 5 November13 February – 5 November
Nasturtiumfrom 16 Decemberfrom 23 Januaryfrom 13 February
Okra3 April – 16 September15 May – 28 October5 June – 28 October
Oregano27 October – 13 September26 December – 12 November16 January – 12 November
Pansyfrom 31 Octoberfrom 26 Decemberfrom 16 January
Parsley——sow 16 January – 2 October
Parsnip——sow 16 January – 21 August
Peanut8 April – 12 August15 May – 18 September5 June – 18 September
Peas——sow 16 January – 4 October
Petuniafrom 13 Marchfrom 15 Mayfrom 5 June
Physalis9 March – 9 August23 April – 23 September14 May – 23 September
Pumpkin3 April – 11 July15 May – 22 August5 June – 22 August
Purple coneflowerfrom 25 October—from 16 January
Radish——sow 16 January – 17 November
Sage7 November – 9 September26 December – 28 October16 January – 28 October
Scarlet sagefrom 2 March—from 14 May
Snapdragonfrom 22 Octoberfrom 26 Decemberfrom 16 January
Soybean——sow 5 June – 28 September
Spinach——sow 16 January – 23 October
Stevia5 March – 31 July23 April – 18 September14 May – 18 September
Stock——sow from 16 January
Sunflower——sow from 27 May
Sweet alyssum——sow from 16 January
Sweet Corn4 March – 23 September26 March – 15 October16 April – 15 October
Sweet peafrom 14 Novemberfrom 26 Decemberfrom 16 January
Sweet William——sow from 16 January
Swiss Chard——sow 16 January – 18 October
Thyme——sow 16 January – 29 August
Tomato2 March – 6 July23 April – 27 August14 May – 27 August
Turnip——sow 16 January – 20 October
Watercress——sow 16 January – 31 October
Watermelon17 April – 10 August15 May – 7 September5 June – 7 September
Zinniafrom 27 Aprilfrom 1 Junefrom 22 June
Zucchini24 April – 9 September15 May – 30 September5 June – 30 September

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 Santiago de Compostela

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 7 days before the last spring frost and 15 °C 97 days after it.

SoilDateAgainst the last spring frost
5 °Calready in the first week of January—
10 °C30 January7 days earlier
15 °C14 May97 days later
18 °C5 June119 days later

Frost dates near Santiago de Compostela

Of the nearest cities on our list, the last spring frost ends earliest in Vigo (14 January) and latest in Lugo (27 March).

CityDistanceLast spring frostFirst autumn frost
Pontevedra51 km22 January—
A Coruña54 km20 January—
Vigo74 km14 January—
Lugo80 km27 March4 December
Ourense81 km25 March3 December

Seeds, seedlings and markets in Santiago de Compostela

Within 15 km of Santiago de Compostela OpenStreetMap lists 8 garden centres, 11 farm-supply shops, 4 plant nurseries and 4 markets (collected 28 October 2026). The nearest garden centre to the city centre is Oforno Garden, 4 km away.

Places: © OpenStreetMap contributors, ODbL.

What to grow at home in winter in Santiago de Compostela

Frosts in Santiago de Compostela usually come from about 17 December to about 6 February. These plants have indoor care in their Greenly cards and are harvested quickly, so they can be sown on a windowsill in winter.

Weather in Santiago de Compostela by month

Average weather in Santiago de Compostela over 2016–2025: the warmest month is August. Months that average 20 °C or more by day: June–September (20.8–24.5 °C). No month averages below 0 °C at night; the coldest nights, in January, average 5 °C. About 1573 mm of rain falls in a year, on 154 days; December is the wettest month (215 mm) and July the driest (29 mm).

MonthDay, °CNight, °CRain, mmRainy days
January11.2520416
February12.55.514414
March13.25.715915
April15.97.413214
May18.69.810112
June20.812.57812
July23.714.3296
August24.514.8336
September21.713.28011
October18.611.220515
November13.97.819317
December12.2621516

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).

Planted in autumn

CropWhen to plant
Bearded Irisby 17 November
Crocusby 17 November
Daffodilby 17 November
Garlic1 October – end of December
Grape hyacinthby 17 November
Helleboreby 17 November
Hyacinthby 17 November
Lilyby 17 November
Ornamental onionby 17 November
Peonyby 17 November
Saffronby 17 November
Snowdropby 17 November
Tulipby 17 November
Wild garlicby 17 November

From a month before the first autumn frost, so the roots grow before winter, to the late-planting limit on each crop’s page (about two weeks before the ground freezes, by ten years of weather).