GreenlyFrost dates and when to plant in Galicia
Spain
In Galicia the last spring frost comes between 14 January (Vigo) and 27 March (Lugo) — the median of 2016–2025 in 6 cities. The first autumn frost comes between 3 December (Ourense) and 17 December (Santiago de Compostela). The frost-free season lasts 252–314 days. Tomato: plant out into open ground 12 May – 27 August, earliest in Ourense, latest in Santiago de Compostela.
Frost dates by city in Galicia
| City | Last spring frost | First autumn frost | Frost-free days | Climate zone | Tomato: window |
|---|---|---|---|---|---|
| Vigo | 14 January | none in ten years | — | Frost without a regular season | from 5 April |
| A Coruña | 20 January | none in ten years | — | Frost without a regular season | from 8 May |
| Pontevedra | 22 January | none in ten years | — | Frost without a regular season | from 21 April |
| Santiago de Compostela | 6 February | 17 December | 314 | 270 frost-free days or more | 14 May – 27 August |
| Ourense | 25 March | 3 December | 253 | 210–269 frost-free days | 12 May – 13 August |
| Lugo | 27 March | 4 December | 252 | 210–269 frost-free days | 15 May – 14 August |
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 to plant in Galicia: windows by crop
The earliest start and the latest end among the cities here, each with its city; every city’s own window is on its page. 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.
| Crop | Planting out or sowing |
|---|---|
| Tomato | 12 May (Ourense) – 27 August (Santiago de Compostela) |
| Cucumber | 1 June (Ourense) – 2 October (Santiago de Compostela) |
| Bell Pepper, Eggplant | 1 June (Ourense) – 27 August (Santiago de Compostela) |
| Zucchini | 1 June (Ourense) – 30 September (Santiago de Compostela) |
| Pumpkin | 1 June (Ourense) – 22 August (Santiago de Compostela) |
| Watermelon | 1 June (Ourense) – 7 September (Santiago de Compostela) |
| Peas | 16 January (Santiago de Compostela) – 4 October (Santiago de Compostela) |
| Garlic | Autumn planting: 1 October – end of December |
| Tulip, Daffodil, Crocus, Hyacinth | Autumn planting: by 3 November (Ourense) |
Weather by month in Galicia
Across the 6 cities the warmest month is August (average days 22.7 … 27.7 °C) and the coldest January (average nights 2.7 … 6.8 °C). No city here averages below 0 °C at night in any month.
| Month | Day, °C | Night, °C | Rain, mm |
|---|---|---|---|
| January | 10.2 … 13.8 °C | 2.7 … 6.8 °C | 189 |
| February | 12 … 15.3 °C | 3.5 … 7.4 °C | 138 |
| March | 13.2 … 16.1 °C | 3.9 … 8 °C | 153 |
| April | 15.8 … 18.4 °C | 6.1 … 10 °C | 125 |
| May | 17.8 … 21 °C | 8.8 … 12.5 °C | 96 |
| June | 19.7 … 23 °C | 11.9 … 15.2 °C | 79 |
| July | 21.9 … 26.9 °C | 14 … 17.1 °C | 25 |
| August | 22.7 … 27.7 °C | 14.3 … 17.3 °C | 33 |
| September | 21.2 … 24 °C | 12 … 15.6 °C | 72 |
| October | 18.6 … 21.2 °C | 10 … 13.6 °C | 177 |
| November | 13.3 … 16.6 °C | 6.2 … 10.1 °C | 182 |
| December | 11.1 … 14.7 °C | 4.1 … 7.9 °C | 202 |
Day and night: the lowest … highest monthly average among the cities; rain: the middle city (ERA5 via Open-Meteo).
