City in Galicia, Spain
Air quality in Santiago de Compostela
Fairly clean
The annual average PM2.5 in Santiago de Compostela was 9 µg/m³ in 2021, about 1.8 times the WHO guideline of 5 µg/m³. Wildfire smoke can reach the city on hot, dry summer days.
Key facts
- PM2.5: 9 µg/m³ yearly average (2021). Measured at Santiago de Compostela.
- PM10: 16 µg/m³ (2021).
- Nitrogen dioxide: 10 µg/m³ (2021), mostly from traffic.
- Recent average: 10.2 µg/m³ over the last five years of measurements.
PM2.5 by year
| Year | Annual average |
|---|---|
| 2021 | |
| 2020 | |
| 2019 | |
| 2018 | |
| 2017 | |
| 2016 | |
| 2015 |
Air quality across Spain
| Place | PM2.5 | Level |
|---|---|---|
| Gran Canaria | 5 µg/m³ | Meets the WHO guideline |
| Lanzarote | 7 µg/m³ | Fairly clean |
| Benidorm | 7.9 µg/m³ | Fairly clean |
| Málaga | 8 µg/m³ | Fairly clean |
| Costa del Sol | 8 µg/m³ | Fairly clean |
| Las Palmas | 8 µg/m³ | Fairly clean |
| Salamanca | 8 µg/m³ | Fairly clean |
| Torremolinos | 8 µg/m³ | Fairly clean |
| Cádiz | 8.5 µg/m³ | Fairly clean |
| Tenerife | 9 µg/m³ | Fairly clean |
| Santiago de Compostela | 9 µg/m³ | Fairly clean |
| Toledo | 9.8 µg/m³ | Fairly clean |
| Madrid | 10 µg/m³ | Fairly clean |
| Bilbao | 10 µg/m³ | Fairly clean |
| Alicante | 10 µg/m³ | Fairly clean |
| Fuerteventura | 10 µg/m³ | Fairly clean |
| Costa Blanca | 10 µg/m³ | Fairly clean |
| Palma | 10.6 µg/m³ | Moderate |
| Seville | 11 µg/m³ | Moderate |
| Valencia | 11 µg/m³ | Moderate |
| Maspalomas | 11.3 µg/m³ | Moderate |
| Barcelona | 12 µg/m³ | Moderate |
| Córdoba | 12 µg/m³ | Moderate |
| Marbella | 12.6 µg/m³ | Moderate |
| Granada | 13 µg/m³ | Moderate |
| Murcia | 13.2 µg/m³ | Moderate |
Quick answers
Is the air in Santiago de Compostela bad?
Fairly clean: 9 µg/m³ of PM2.5 on average, 1.8× the WHO guideline.
When is the air worst in Santiago de Compostela?
Wildfire smoke can reach the city on hot, dry summer days.
How does Santiago de Compostela compare with the rest of Spain?
People in Spain breathe 10 µg/m³ of PM2.5 on average (2023, World Bank/WHO), against 9 µg/m³ measured here.
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Sources
- WHO Ambient Air Quality Database
- WHO air quality guidelines (2021)
- Live air quality map (WAQI)
- Renfe
- Santiago de Compostela tourism
Annual averages are measured values reported to the WHO; check a live map for today's air. Compiled and reviewed by SoloSquare. How we compile and score this. Spotted something out of date? Tell us.