Air Quality in Donostia / San Sebastián, Spain

Overcast
10.2°C · 96.6% humidity
10.2°
Feels 10.2°
25
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station

Nearby Monitoring Stations

AQI Forecast
34 12am
54
34
25 3am
13
19
16 6am
17
20
23 9am
24
25
26 12pm
33
33
26 3pm
34
34
34 6pm
34
34
27 9pm
27
27
AD 728×90

Air Quality Index Trend

47h · 2 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.

96.6%
Humidity
7.9 km/h
Wind ESE
1023.5 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
25
6.0 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Donostia / San Sebastián?

Temperature & Precipitation

PM2.5 Trend

47h · 2 stations
PM2.56.0 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (1 station within 25 km)
6.0
Median
6.0
Average
6.0
Low
6.0
High
PM2.5 µg/m³ · Model: 9.75 · Bias: +3.8

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

06-09
18.8° 10.2°
9.38 mm
06-10
13.8° 12.5°
4.31 mm
06-11
27.1° 15.5°
4.81 mm
06-12
26.9° 12.8°
06-13
27.0° 11.6°
0.62 mm
06-14
22.9° 11.5°
10.25 mm
06-15
16.7° 13.0°
2.19 mm
Both models agree Avg diff: 3.4°C

Where are air quality stations near Donostia / San Sebastián?

29
Hernani, País Vasco, Spain
5.0 km PM2.5: 7.0 µg/m³
5
Zubieta, San Sebastián, Donostia, País Vasco, Spain
6.4 km PM2.5: 1.2 µg/m³
78
Usurbil, País Vasco, Spain
7.5 km PM2.5: 24.9 µg/m³
–
ZUBIETA METEO
7.8 km 85.0% RH
18
Andoain, País Vasco, Spain
10.9 km PM2.5: 4.3 µg/m³
13
Pagoeta, Aia, País Vasco, Spain
16.1 km PM2.5: 3.1 µg/m³
37
Tolosa, País Vasco, Spain
21.9 km PM2.5: 8.9 µg/m³

What cities are near Donostia / San Sebastián?

25 Pasaia 25 Hernani 25 Errenteria 25 Lasarte 25 Oria 26 Irun 27 Hondarribia 25 Zarautz 25 Tolosa 26 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 2026-06-09T01:07 UTC.