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
7am
25
25
25
10am
25
27
27
1pm
27
27
27
4pm
34
34
34
7pm
34
34
34
10pm
34
27
25
1am
34
34
34
4am
27
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
10.9
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 INDEX10.9
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 2026-06-09T09:49 UTC.