Air Quality in Heiloo, Netherlands

Windy
11.9°C · 69.0% humidity
11.9°
Feels 11.9°
48
Good
Air quality is satisfactory. Enjoy outdoor activities.
11 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
72 6pm
92
92
48 9pm
60
69
76 12am
80
84
86 3am
68
69
70 6am
70
71
71 9am
71
72
72 12pm
72
72
72 3pm
72
72
Station readings
77
82
74
35
CAMS model adj +38
34
54
54
54
54
54
54
54
54
54
34
34
34
34
34
34
34
34
34
34
34
34
34
34
AD 728×90

Air Quality Index Trend

31h · 1 stn

Heiloo'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.

69.0%
Humidity
110.8 km/h
Wind NNE
1023.8 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
48
11.52 µg/m³
PM10
31
34.3 µg/m³
050100150200300500

What is the weather forecast for Heiloo?

Temperature & Precipitation

PM2.5 Trend

31h · 1 station
PM2.511.52 µg/m³ ✓ WHO
Good
PM1034.3 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (11 stations within 25 km)
11.52
Median
12.0
Average
5.3
Low
31.6
High
PM2.5 µg/m³ · Model: 13.5 · Bias: +2.0

What is the 7-day forecast for Heiloo?

05-29
13.6° 11.9°
0.31 mm
05-30
13.2° 11.3°
8.38 mm
05-31
16.9° 10.6°
0.94 mm
06-01
13.5° 11.0°
0.06 mm
06-02
17.5° 13.7°
3.19 mm
06-03
13.7° 11.9°
1.63 mm
06-04
22.2° 17.4°
0.94 mm
Both models agree Avg diff: 3.2°C

Where are air quality stations near Heiloo?

13
PNH De Rijp
12.5 km PM2.5: 3.1 µg/m³
34
West, PNH Beverwijk
13.0 km PM2.5: 8.2 µg/m³
38
PNH Wijk aan Zee
13.4 km PM2.5: 9.1 µg/m³
37
Wijk aan Zee-Bosweg
13.9 km PM2.5: 8.9 µg/m³ PM10: 16.4 µg/m³
38
Staalstraat, Velsen
14.6 km PM2.5: 9.1 µg/m³
58
Wagenschotpad, Zaandam
19.3 km PM2.5: 15.4 µg/m³
7
Zaandam
20.2 km PM2.5: 1.7 µg/m³
53
Zaandam
20.2 km PM2.5: 13.1 µg/m³
13
Zaandam
20.2 km PM2.5: 3.1 µg/m³
33
Zaandam
20.2 km PM2.5: 7.9 µg/m³

What cities are near Heiloo?

52 Alkmaar 46 Castricum 49 Bergen 45 Heemskerk 54 Heerhugowaard 44 Beverwijk 50 Assendelft 46 Velsen-Zuid 41 IJmuiden 45 Zaanstad
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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 2026-05-29T19:14 UTC.