Greenly Garden

Last and first frost dates in Curicó

Chile

In Curicó the last spring frost usually comes around 25 August and the first autumn frost around 7 June, which leaves about 286 frost-free days (median of 2016–2025). Tomato seedlings can go into open ground from 15 October to 15 February.

Last spring frostaround 25 August
First autumn frostaround 7 June
Frost-free days286 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 Curicó?

The last frost in Curicó usually comes around 25 August: 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 4 August, while corn waits until 19 September. The first autumn frost follows around 7 June, about 286 days later: harvest or cover frost-tender crops before then.

When to sow and plant

CropSow for seedlingsPlant out in a greenhouseOpen ground
Achocha2 July – 27 February11 August – 7 April1 September – 7 April
Ageratumfrom 30 July—from 15 October
Arugula——sow 4 August – 2 May
Basil2 September – 4 April10 October – 12 May31 October – 12 May
Beet——sow 4 August – 7 April
Bell Pepper11 August – 17 December10 October – 15 February31 October – 15 February
Black-eyed Susanfrom 10 June—from 1 September
Bok Choy7 July – 15 April11 August – 20 May1 September – 20 May
Borage——sow 1 September – 12 April
Broad bean——sow 4 August – 27 February
Broccoli——sow 4 August – 20 February
Brussels Sprouts30 May – 18 January14 July – 3 March4 August – 3 March
Busy Lizziefrom 9 June—from 1 September
Cabbage——sow 4 August – 28 January
Calendula——sow from 4 August
Carrot——sow 4 August – 14 March
Cauliflower2 June – 20 February14 July – 2 April4 August – 2 April
Celeriac26 May – 18 December11 August – 4 March1 September – 4 March
Celery26 May – 28 December11 August – 14 March1 September – 14 March
Celosiafrom 17 Augustfrom 1 Octoberfrom 22 October
Chamomile——sow 4 August – 2 April
Chayote2 June – 11 December29 August – 8 March19 September – 8 March
Chickpea——sow 4 August – 17 February
Chicory19 June – 13 March—4 August – 7 April
Chili Pepper11 August – 23 January10 October – 23 March31 October – 23 March
China asterfrom 19 Augustfrom 10 Octoberfrom 31 October
Chives——sow 4 August – 24 March
Cilantro——sow 4 August – 3 April
Corn——sow 19 September – 17 February
Corn poppy——sow from 4 August
Cosmosfrom 17 Augustfrom 1 Octoberfrom 22 October
Cucumber12 September – 23 February10 October – 22 March31 October – 22 March
Daikon——sow 4 August – 31 March
Delphiniumfrom 16 May—from 4 August
Dill——sow 4 August – 13 April
Edging lobeliafrom 9 June—from 1 September
Eggplant11 August – 17 December10 October – 15 February31 October – 15 February
Florence fennel27 June – 27 February11 August – 12 April1 September – 12 April
Foxglovefrom 28 April—from 4 August
Garden sorrel——sow 4 August – 1 April
Green Beans——sow 22 October – 25 February
Hollyhock——sow from 4 August
Hyssop——sow 4 August – 23 February
Kale——sow 4 August – 26 March
Kiwano23 August – 1 March24 September – 2 April15 October – 2 April
Kohlrabi——sow 4 August – 5 April
Leek5 May – 9 December14 July – 17 February4 August – 17 February
Lemon balm——sow 4 August – 28 March
Lettuce——sow 4 August – 10 April
Lisianthusfrom 18 Aprilfrom 14 Julyfrom 4 August
Lovage——sow from 4 August
Luffa29 August – 25 December10 October – 5 February31 October – 5 February
Marigoldfrom 30 Junefrom 11 Augustfrom 1 September
Marjoram11 August – 13 March—31 October – 12 May
Melon12 September – 10 February10 October – 9 March31 October – 9 March
Microgreens——sow 22 October – 23 May
Moringa25 August – 18 March19 October – 12 May9 November – 12 May
Moss rosefrom 16 June—from 1 September
Mustard greens——sow 4 August – 22 April
Napa cabbage9 July – 23 March11 August – 25 April1 September – 25 April
Nasturtiumfrom 4 Julyfrom 11 Augustfrom 1 September
Okra29 August – 6 March10 October – 17 April31 October – 17 April
Oregano15 May – 3 March14 July – 2 May4 August – 2 May
Pansyfrom 19 Mayfrom 14 Julyfrom 4 August
Parsley——sow 4 August – 22 March
Parsnip——sow 4 August – 9 February
Peanut3 September – 31 January10 October – 8 March31 October – 8 March
Peas——sow 4 August – 24 March
Petuniafrom 8 Augustfrom 10 Octoberfrom 31 October
Physalis10 August – 28 January24 September – 13 March15 October – 13 March
Pumpkin29 August – 30 December10 October – 10 February31 October – 10 February
Purple coneflowerfrom 13 May—from 4 August
Radish——sow 4 August – 7 May
Sage26 May – 28 February14 July – 17 April4 August – 17 April
Scarlet sagefrom 3 August—from 15 October
Snapdragonfrom 10 Mayfrom 14 Julyfrom 4 August
Soybean——sow 31 October – 18 March
Spinach——sow 4 August – 12 April
Stevia6 August – 19 January24 September – 8 March15 October – 8 March
Stock——sow from 4 August
Sunflower——sow from 22 October
Sweet alyssum——sow from 4 August
Sweet Corn16 August – 13 March7 September – 4 April28 September – 4 April
Sweet peafrom 2 Junefrom 14 Julyfrom 4 August
Sweet William——sow from 4 August
Swiss Chard——sow 4 August – 7 April
Thyme——sow 4 August – 17 February
Tomato3 August – 25 December24 September – 15 February15 October – 15 February
Turnip——sow 4 August – 9 April
Watercress——sow 4 August – 20 April
Watermelon12 September – 29 January10 October – 26 February31 October – 26 February
Zinniafrom 14 Septemberfrom 19 Octoberfrom 9 November
Zucchini19 September – 28 February10 October – 20 March31 October – 20 March

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 Curicó

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 15 days before the last spring frost and 15 °C 51 days after it.

SoilDateAgainst the last spring frost
5 °Calready in the first week of July—
10 °C10 August15 days earlier
15 °C15 October51 days later
18 °C31 October67 days later

Frost dates near Curicó

Of the nearest cities on our list, the last spring frost ends earliest in Valparaíso (6 August) and latest in Chillán (30 August).

CityDistanceLast spring frostFirst autumn frost
Talca61 km21 August13 June
Rancagua102 km18 August12 June
Santiago179 km9 August18 June
Chillán196 km30 August12 June
Valparaíso219 km6 August—

Seeds, seedlings and markets in Curicó

Within 15 km of Curicó OpenStreetMap lists 1 plant nursery, 8 markets and 1 farm shop (collected 28 October 2026). The nearest market to the city centre is Feria de las Pulgas, 2 km away.

Places: © OpenStreetMap contributors, ODbL.

What to grow at home in winter in Curicó

Frosts in Curicó usually come from about 7 June to about 25 August. 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 Curicó by month

Average weather in Curicó over 2016–2025: the warmest month is January. Months that average 20 °C or more by day: October–April (20.8–30.6 °C). Months that average 30 °C or more by day: January (30.6 °C) and February (30.3 °C). No month averages below 0 °C at night; the coldest nights, in July, average 3.5 °C. About 715 mm of rain falls in a year, on 55 days; June is the wettest month (189 mm) and December the driest (4 mm).

MonthDay, °CNight, °CRain, mmRainy days
January30.614.7111
February30.314.471
March27.412.171
April21.39.2594
May166.8877
June13.24.618910
July12.83.51058
August14.64.61168
September17.26.1736
October20.87.8385
November25.610.6193
December29.11341

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 8 May
Crocusby 8 May
Daffodilby 8 May
Garlic8 May – end of June
Grape hyacinthby 8 May
Helleboreby 8 May
Hyacinthby 8 May
Lilyby 8 May
Ornamental onionby 8 May
Peonyby 8 May
Saffronby 8 May
Snowdropby 8 May
Tulipby 8 May
Wild garlicby 8 May

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).