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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Civic Insight weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Santiago de Compostela weather is reliably wet and mild, typical of Spain’s Atlantic fringe. The live forecast above will show you today’s showers or cloud, while the city’s year-round humidity and modest temperature range mean a waterproof jacket is never wasted.
What is Santiago de Compostela’s weather like year round?
Across the seasons, Santiago de Compostela weather year round stays cool for its latitude. Summers average highs around 25°C, with frequent overcast days; winters hover around 8–13°C, with rain falling on roughly half of all December days. The city’s interior valley location traps moisture from the Atlantic, so even July can bring a drizzle. If you’re checking UK weather for comparison, expect Galicia to feel noticeably milder but far wetter than southern England.
When is the best month to visit Santiago de Compostela for good weather?
For the lowest chance of rain and the warmest afternoons, July and August are best, though September also holds up well. Santiago de Compostela weather september typically sees highs of 22–24°C and diminishing Atlantic fronts, making it a favourite for pilgrims. If you prefer cooler but still walkable conditions, consult Santiago de Compostela weather by month before booking — May and June offer long daylight and fewer crowds.
Does it rain a lot in Santiago de Compostela?
Yes — Galicia is one of Spain’s wettest regions. Expect rain on about 130–150 days per year, heaviest from November to February. Even in drier months, brief showers are common.
What is Santiago de Compostela weather like in December?
Santiago de Compostela weather december is cool, damp and dark: highs near 12°C, lows around 5°C, with rain on roughly 15 days of the month. Fog and mist also occur.
Can I find a 30-day forecast for Santiago de Compostela?
For Santiago de Compostela weather forecast 30 days, check the live forecast above. Longer-range outlooks are less reliable; for a safer plan, use your city’s 10-day UK forecast as a guide for similar Atlantic systems.