What is the air quality trend in Santander?

Over the past 15 days, Santander had an average AQI of 34 based on station measurements. The worst day was 2026-08-28 with AQI 51.

How is Santander air quality measured?

Air quality in Santander is measured by ground-level monitoring stations that report PM2.5 and PM10 concentrations hourly. CERNS.IO aggregates readings from nearby stations and converts PM2.5 to the US EPA Air Quality Index (AQI) scale.

Air Quality History for Santander, Spain

Name: Santander Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Santander, Spain.

Current AQI
Moderate CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

286h

PM2.5 Station

286h · 3 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-09-05	38	12–116	10.0 µg/m³	17h	2
2026-09-04	35	9–67	8.8 µg/m³	22h	2
2026-09-03	36	17–95	9.2 µg/m³	20h	3
2026-09-02	34	13–116	8.9 µg/m³	19h	2
2026-09-01	29	15–67	7.0 µg/m³	19h	2
2026-08-31	39	16–93	10.3 µg/m³	21h	2
2026-08-30	35	9–64	8.6 µg/m³	19h	2
2026-08-29	43	10–131	12.4 µg/m³	21h	2
2026-08-28	51	10–151	14.6 µg/m³	19h	2
2026-08-27	30	10–60	7.4 µg/m³	20h	2
2026-08-26	36	16–91	9.5 µg/m³	22h	2
2026-08-25	31	1–70	7.7 µg/m³	21h	2
2026-08-24	30	15–48	7.3 µg/m³	18h	2
2026-08-23	33	3–98	8.8 µg/m³	24h	2
2026-08-22	24	8–40	5.9 µg/m³	4h	2

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