Air Quality in Leiria, Portugal

Windy
18.7°C · 79.4% humidity
18.7°
Feels 18.7°
38
Good
Air quality is satisfactory. Enjoy outdoor activities.
Calibrated model

Nearby Monitoring Stations

AQI Forecast
54 2pm
54
54
38 5pm
43
46
48 8pm
50
31
32 11pm
32
33
33 2am
33
54
54 5am
34
34
34 8am
34
27
34 11am
34
34
AD 728×90

Air Quality Index Trend

33h · 1 stn

Leiria'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.

79.4%
Humidity
87.4 km/h
Wind N
1017.3 hPa
Pressure
5.9
UV High
GoodModerateUSGUnhealthyVery UnhealthyHazardous
PM2.5
38
9.13 µg/m³
PM10
38
41.2 µg/m³
050100150200300500

Temperature & Precipitation

PM2.5 Trend

33h · 1 station
PM2.59.13 µg/m³ ✓ WHO
Good
PM1041.2 µg/m³
Good
UV INDEX5.9
High
AD 300×250
09-05
20.4° 18.7°
09-06
19.9° 18.4°
09-07
20.2° 16.6°
09-08
20.1° 18.6°
0.88 mm
09-09
22.5° 17.8°
0.06 mm
09-10
21.5° 18.7°
09-11
19.2° 18.0°
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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 2026-09-05T16:33 UTC.