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Green, Atlantic and Celtic-influenced — the corner of Spain that looks nothing like the rest of it. Daytime highs in Galicia run from about 12 °C in January to 23 °C in August, an annual range of roughly 12 °C.
Measured against a hiking trip, the conditions hold up June to August. July is the most consistent single month: highs near 23 °C, nights around 15 °C, and roughly 38 mm of rain across the month.
The binding constraint here is rainfall — that is what rules months out, not any composite judgement. Rainfall is sharply seasonal: December averages 192 mm against 38 mm in July, so the wet season is the real planning constraint rather than heat or cold. January is the weakest month on these criteria.
September sit just outside the window — part of the month works and part does not. These are usually the interesting weeks: conditions are close to the peak-season answer while prices and crowds are not. The map lets you check them fortnight by fortnight rather than trusting a monthly average.
What Galicia is known for
- Santiago de Compostela is the end point of the Camino; its cathedral and old town are a UNESCO site
- The Rias Baixas are drowned river valleys producing Albarino and most of Spain's shellfish
- Galicia lands a large share of Europe's octopus and percebes, and eats most of it locally
- The Tower of Hercules at A Coruna is the oldest Roman lighthouse still in use
- This is the wettest region in Spain — nothing here resembles the Mediterranean coast
Month by month
| Month | High °C | Low °C | Precip mm | Wet days |
|---|---|---|---|---|
| January | 12 | 6 | 160 | 15.8 |
| February | 13 | 6 | 131 | 12.6 |
| March | 14 | 7 | 137 | 13.6 |
| April | 16 | 8 | 125 | 15.2 |
| May | 18 | 10 | 109 | 13.9 |
| June | 20 | 13 | 70 | 10.6 |
| July | 23 | 15 | 38 | 7.8 |
| August | 23 | 15 | 43 | 8.1 |
| September | 22 | 14 | 92 | 10.0 |
| October | 18 | 12 | 159 | 15.0 |
| November | 15 | 9 | 187 | 16.3 |
| December | 12 | 6 | 192 | 15.4 |
Ticked rows are months where every hard requirement for a hiking trip is met across at least half the month.
By trip type
| Hiking | June to August |
| City | June to September |
Each row applies that trip type's own hard limits to the same climate data.
Open Galicia on the map →
Nearby regions
Figures are 30-year climatology sampled at Santiago de Compostela, A Coruna, Vigo, Pontevedra and Ribadeo, averaged across those locations, from ERA5-Land reanalysis fitted with a harmonic seasonal cycle and a trend term, evaluated for 2026. Sampling named towns rather than averaging the whole region avoids blending valley and mountain conditions into a figure true of neither. Cells are about 0.08° wide, from ERA5-Land's 0.1° grid, which is itself driven by a 0.25° (~28 km) atmospheric reanalysis — so individual valleys, sheltered bays and single summits are not resolved. In steep terrain read these as conditions for the wider area rather than for one village. They describe typical conditions, not a forecast. Read how the climatology is built.