Air Quality in Heiloo, Netherlands

Windy
18.9°C · 73.8% humidity
18.9°
Feels 18.9°
32
Good
Air quality is satisfactory. Enjoy outdoor activities.
5 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
35 1am
35
39
32 4am
35
35
35 7am
35
35
35 10am
35
35
35 1pm
35
35
35 4pm
35
35
28 7pm
28
28
28 10pm
28
35
Station readings
26
73
39
CAMS model adj +1
34
34
34
34
34
34
34
34
34
34
34
34
34
34
34
34
34
34
27
27
27
27
27
34
AD 728×90

Air Quality Index Trend

35h · 3 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.

73.8%
Humidity
116.7 km/h
Wind SW
1012.0 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
32
7.73 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Heiloo?

Temperature & Precipitation

PM2.5 Trend

35h · 3 stations
PM2.57.73 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (5 stations within 25 km)
7.73
Median
7.14
Average
2.9
Low
8.2
High
PM2.5 µg/m³ · Model: 7.0 · Bias: -0.7

What is the 7-day forecast for Heiloo?

08-03
19.5° 16.7°
08-04
17.1° 16.5°
1.81 mm
08-05
19.7° 17.0°
08-06
20.8° 18.2°
1.75 mm
08-07
27.3° 17.2°
4.06 mm
08-08
19.7° 14.2°
11.94 mm
08-09
19.1° 16.0°
1.75 mm
Both models agree Avg diff: 2.7°C

Where are air quality stations near Heiloo?

22
PNH De Rijp
12.5 km PM2.5: 5.3 µg/m³
37
West, PNH Beverwijk
13.0 km PM2.5: 8.9 µg/m³
15
PNH Wijk aan Zee
13.4 km PM2.5: 3.6 µg/m³
30
Wijk aan Zee-Bosweg
13.9 km PM2.5: 7.1 µg/m³ PM10: 12.4 µg/m³
54
PNH Reijndersweg
15.6 km PM2.5: 13.5 µg/m³
18
Wagenschotpad, Zaandam
19.3 km PM2.5: 4.3 µg/m³
31
Zaandam
20.2 km PM2.5: 7.4 µg/m³
22
Zaandam
20.2 km PM2.5: 5.3 µg/m³
32
Zaandam
20.2 km PM2.5: 7.7 µg/m³
26
Zaandam
20.2 km PM2.5: 6.2 µg/m³

What cities are near Heiloo?

32 Alkmaar 34 Castricum 30 Bergen 34 Heemskerk 27 Heerhugowaard 34 Beverwijk 32 Assendelft 33 Velsen-Zuid 34 IJmuiden 34 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 2026-08-08T02:06 UTC.