Air Quality in Donostia / San Sebastián, Spain

Overcast
17.4°C · 90.9% humidity
17.4°
Feels 17.4°
34
Good
Air quality is satisfactory. Enjoy outdoor activities.
9 stations

Nearby Monitoring Stations

AQI Forecast
54 6am
54
54
34 9am
40
44
47 12pm
49
50
51 3pm
52
53
33 6pm
33
53
54 9pm
54
54
54 12am
54
54
54 3am
54
54
AD 728×90

Air Quality Index Trend

49h · 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.

90.9%
Humidity
14.3 km/h
Wind SW
1017.0 hPa
Pressure
2.9
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
34
8.19 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Donostia / San Sebastián?

Temperature & Precipitation

PM2.5 Trend

49h · 2 stations
PM2.58.19 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX2.9
Moderate
AD 300×250
Station readings (9 stations within 25 km)
8.19
Median
7.07
Average
4.3
Low
10.1
High
PM2.5 µg/m³ · Model: 10.0 · Bias: +1.8

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

07-22
21.9° 16.7°
0.38 mm
07-23
23.6° 18.8°
0.62 mm
07-24
22.2° 14.0°
1.44 mm
07-25
25.0° 15.4°
1.69 mm
07-26
23.5° 16.0°
0.5 mm
07-27
25.4° 14.7°
0.31 mm
07-28
27.3° 15.0°
0.38 mm
Both models agree Avg diff: 3.4°C

Where are air quality stations near Donostia / San Sebastián?

89
Hernani, País Vasco, Spain
5.0 km PM2.5: 30.2 µg/m³
2
Zubieta, San Sebastián, Donostia, País Vasco, Spain
6.4 km PM2.5: 0.5 µg/m³
91
Usurbil, País Vasco, Spain
7.5 km PM2.5: 31.1 µg/m³
–
ZUBIETA METEO
7.8 km 64.0% RH
29
Andoain, País Vasco, Spain
10.9 km PM2.5: 7.0 µg/m³
237
Pagoeta, Aia, País Vasco, Spain
16.1 km PM2.5: 186.8 µg/m³
36
Tolosa, País Vasco, Spain
21.9 km PM2.5: 8.6 µg/m³

What cities are near Donostia / San Sebastián?

39 Pasaia 26 Hernani 41 Errenteria 19 Lasarte 21 Oria 32 Irun 32 Hondarribia 33 Zarautz 24 Tolosa 24 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 2026-07-22T07:15 UTC.