Air Quality in Donostia / San Sebastián, Spain

Cloudy
15.3°C · 82.8% humidity
15.3°
Feels 15.3°
30
Good
Air quality is satisfactory. Enjoy outdoor activities.
9 stations

Nearby Monitoring Stations

AQI Forecast
54 9pm
54
54
30 12am
37
42
18 3am
21
22
24 6am
25
25
26 9am
33
33
54 12pm
54
54
54 3pm
54
54
54 6pm
54
54
AD 728×90

Air Quality Index Trend

46h · 15 stn

Donostia / San Sebastián's air quality is shaped by traffic emissions and residential heating. Pollution levels tend to peak during winter months when cold air traps emissions close to ground level.

82.8%
Humidity
3.4 km/h
Wind SE
1022.0 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
30
7.19 µg/m³
PM10▲
31
34.3 µg/m³
050100150200300500

What is the weather forecast for Donostia / San Sebastián?

Temperature & Precipitation

PM2.5 Trend

46h · 15 stations
PM2.57.19 µg/m³ ✓ WHO
Good
PM1034.3 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (9 stations within 25 km)
7.19
Median
8.77
Average
2.6
Low
14.5
High
PM2.5 µg/m³ · Model: 13.5 · Bias: +6.3

What is the 7-day forecast for Donostia / San Sebastián?

09-05
27.9° 15.5°
1.37 mm
09-06
21.8° 15.3°
4.69 mm
09-07
28.2° 14.3°
1.31 mm
09-08
21.4° 15.4°
3.56 mm
09-09
24.2° 12.8°
0.5 mm
09-10
24.4° 15.8°
09-11
22.4° 14.4°
2.87 mm
Both models agree Avg diff: 4.5°C

Where are air quality stations near Donostia / San Sebastián?

11
Puyo, San Sebastián, Donostia, País Vasco, Spain
1.4 km PM2.5: 2.6 µg/m³
38
Puyo, San Sebastián, Donostia, País Vasco, Spain
1.4 km PM2.5: 9.1 µg/m³
53
Puyo, San Sebastián, Donostia, País Vasco, Spain
1.4 km PM2.5: 13.1 µg/m³
44
Ategorrieta, San Sebastián, Donostia, País Vasco, Spain
1.5 km PM2.5: 10.6 µg/m³
34
Avda. Tolosa, San Sebastián, Donostia, País Vasco, Spain
2.9 km PM2.5: 8.2 µg/m³
33
Añorga, San Sebastián, Donostia, País Vasco, Spain
3.0 km PM2.5: 7.9 µg/m³
19
Añorga, San Sebastián, Donostia, País Vasco, Spain
3.0 km PM2.5: 4.6 µg/m³
29
Lasarte-oria, Lasarte-Oria, País Vasco, Spain
6.1 km PM2.5: 7.0 µg/m³
45
Zubieta, San Sebastián, Donostia, País Vasco, Spain
6.4 km PM2.5: 10.8 µg/m³
27
Usurbil, País Vasco, Spain
7.5 km PM2.5: 6.5 µg/m³

What cities are near Donostia / San Sebastián?

36 Pasaia 30 Hernani 33 Errenteria 41 Lasarte 38 Oria 32 Irun 32 Hondarribia 51 Zarautz 44 Tolosa 35 Biarritz
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-09-05T22:54 UTC.