Air Quality in Leiden, Netherlands
Windy
19.1°C · 51.8% humidity
19.1°
Feels 19.1°
25
Good
Air quality is satisfactory. Enjoy outdoor activities.
15 stations
Nearby Monitoring Stations
AQI Forecast
Calibrated
0
7pm
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10pm
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1am
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4am
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7am
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10am
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1pm
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4pm
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Station readings
0
1
0
CAMS model
adj -25
Air Quality Index Trend
47h · 1 stnLeiden'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.
51.8%
Humidity
60.5 km/h
Wind WNW
1014.5 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
6.03 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Leiden?
Temperature & Precipitation
PM2.5 Trend
47h · 1 stationPM2.56.03 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
Station readings (15 stations within 25 km)
6.03
Median
6.83
Average
0.16
Low
11.5
High
PM2.5 µg/m³ · Model: 6.25 · Bias: +0.2
What is the 7-day forecast for Leiden?
07-21
19.9° 16.3°
0.56 mm
07-22
20.0° 16.2°
1.88 mm
07-23
17.5° 15.5°
1.94 mm
07-24
21.3° 16.9°
4.19 mm
07-25
23.1° 14.8°
0.06 mm
07-26
28.2° 16.5°
0.5 mm
07-27
21.5° 18.5°
0.56 mm
Both models agree
Avg diff: 1.6°C
Where are air quality stations near Leiden?
46
Willem de Zwijgerlaan, Leiden
–
netherlands-voorhout-linnaeuslaan
–
netherlands-laak-binckhorstlaan
7
Den Haag-Neherkade
53
Rebecquestraat, Den Haag
–
netherlands-hof-van-scheveningen
34
Oude Meije, Zegveld
74
PNH Hoofddorp
59
Oost Sidelinge A13, Rotterdam
18
Schipholweg, Haarlem
What cities are near Leiden?
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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 2026-07-21T20:44 UTC.