Air Quality in Donostia / San Sebastián, Spain

Cloudy
20.1°C · 70.0% humidity
20.1°
Feels 20.1°
44
Good
Air quality is satisfactory. Enjoy outdoor activities.
2 stations

Nearby Monitoring Stations

AQI Forecast
34 1am
54
54
44 4am
47
49
50 7am
51
32
33 10am
53
53
54 1pm
54
54
54 4pm
54
54
34 7pm
34
34
34 10pm
34
34
AD 728×90

Air Quality Index Trend

43h · 4 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.

70.0%
Humidity
23.5 km/h
Wind N
1019.4 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
44
10.55 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Donostia / San Sebastián?

Temperature & Precipitation

PM2.5 Trend

43h · 4 stations
PM2.510.55 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (2 stations within 25 km)
10.55
Median
10.1
Average
9.4
Low
10.8
High
PM2.5 µg/m³ · Model: 7.1 · Bias: -3.5

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

08-03
39.4° 16.5°
1.13 mm
08-04
29.3° 16.9°
0.19 mm
08-05
24.3° 16.5°
08-06
22.4° 16.5°
5.63 mm
08-07
29.1° 13.4°
4.25 mm
08-08
21.1° 15.4°
1.06 mm
08-09
21.5° 18.1°
0.94 mm
Both models agree Avg diff: 3.1°C

Where are air quality stations near Donostia / San Sebastián?

44
Easo, San Sebastián, Donostia, País Vasco, Spain
0.5 km PM2.5: 10.6 µg/m³
25
Puyo, San Sebastián, Donostia, País Vasco, Spain
1.4 km PM2.5: 6.0 µg/m³
24
Puyo, San Sebastián, Donostia, País Vasco, Spain
1.4 km PM2.5: 5.8 µg/m³
21
Puyo, San Sebastián, Donostia, País Vasco, Spain
1.4 km PM2.5: 5.0 µg/m³
30
Ategorrieta, San Sebastián, Donostia, País Vasco, Spain
1.5 km PM2.5: 7.2 µg/m³
15
Avda. Tolosa, San Sebastián, Donostia, País Vasco, Spain
2.9 km PM2.5: 3.6 µg/m³
17
Avda. Tolosa, San Sebastián, Donostia, País Vasco, Spain
2.9 km PM2.5: 4.1 µg/m³
25
Añorga, San Sebastián, Donostia, País Vasco, Spain
3.0 km PM2.5: 6.0 µg/m³
21
Añorga, San Sebastián, Donostia, País Vasco, Spain
3.0 km PM2.5: 5.0 µg/m³
17
Lasarte-oria, Lasarte-Oria, País Vasco, Spain
6.1 km PM2.5: 4.1 µg/m³

What cities are near Donostia / San Sebastián?

43 Pasaia 43 Hernani 43 Errenteria 42 Lasarte 42 Oria 41 Irun 41 Hondarribia 42 Zarautz 41 Tolosa 37 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 2026-08-08T02:16 UTC.