Air Quality in Hillerød, Denmark
Rain
13.9°C · 96.4% humidity
13.9°
Feels 13.9°
3
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station
Nearby Monitoring Stations
Hillerød's air quality — share it
AQI Forecast
Calibrated
2
6am
3
3
3
9am
3
5
5
12pm
5
5
5
3pm
5
5
5
6pm
5
5
5
9pm
5
5
5
12am
5
3
5
3am
5
5
Station readings
2
4
2
CAMS model
adj -22
24
25
25
25
25
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
25
27
27
27
Air Quality Index Trend
45h · 1 stnHillerød'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.
96.4%
Humidity
76.0 km/h
Wind NE
990.8 hPa
Pressure
5.9
UV High
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5
0.7 µg/m³
PM10▲
13.7 µg/m³
050100150200300500
What is the weather forecast for Hillerød?
Temperature & Precipitation
PM2.5 Trend
45h · 1 stationPM2.50.7 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX5.9
High
Station readings (1 station within 25 km)
0.7
Median
0.7
Average
0.7
Low
0.7
High
PM2.5 µg/m³ · Model: 5.9 · Bias: +5.2
What is the 7-day forecast for Hillerød?
07-21
21.1° 13.9°
6.94 mm
07-22
22.8° 14.9°
3.06 mm
07-23
20.9° 16.7°
0.44 mm
07-24
21.7° 15.8°
6.38 mm
07-25
25.4° 12.7°
4.37 mm
07-26
24.3° 14.2°
0.88 mm
07-27
23.7° 14.6°
0.81 mm
Both models agree
Avg diff: 1.9°C
Where are air quality stations near Hillerød?
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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 2026-07-21T07:34 UTC.