Air Quality in Leiria, Portugal
Windy
17.5°C · 67.9% humidity
17.5°
Feels 17.5°
25
Good
Air quality is satisfactory. Enjoy outdoor activities.
Model forecast
Nearby Monitoring Stations
Leiria's air quality — share it
AQI Forecast
25
8am
25
25
25
11am
27
27
27
2pm
27
27
34
5pm
34
34
34
8pm
34
34
34
11pm
27
25
34
2am
34
34
27
5am
25
25
Air Quality Index Trend
38h · 1 stnLeiria'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.
67.9%
Humidity
106.9 km/h
Wind NNW
1014.6 hPa
Pressure
17.4
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
6.0 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Leiria?
Temperature & Precipitation
PM2.5 Trend
38h · 1 stationPM2.56.0 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX17.4
Extreme
What is the 7-day forecast for Leiria?
06-09
17.6° 15.5°
06-10
17.2° 16.2°
0.19 mm
06-11
27.6° 18.2°
0.31 mm
06-12
23.0° 17.1°
06-13
19.3° 16.3°
1.0 mm
06-14
18.3° 16.9°
0.88 mm
06-15
19.9° 17.3°
Both models agree
Avg diff: 2.9°C
Where are air quality stations near Leiria?
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-06-09T10:47 UTC.