Air Quality in Heiloo, Netherlands

Drizzle
7.0°C · 91.5% humidity
7.0°
Feels -1.3°
38
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station

Nearby Monitoring Stations

AQI Forecast Calibrated
39 9pm
27
4
47 12am
47
47
47 3am
47
47
47 6am
47
59
59 9am
47
59
59 12pm
59
72
72 3pm
72
72
72 6pm
72
72
Station readings
39
27
4
CAMS model adj +22
12
12
25
25
25
25
25
25
25
25
25
37
37
25
37
37
37
50
50
50
50
50
50
50
AD 728×90

PM2.5 Trend (24h)

26h · 4 stations
91.5%
Humidity
128.4 km/h
Wind E
1013.8 hPa
Pressure
7.9
UV Very High
GoodModerateUSGUnhealthyVery UnhealthyHazardous

What is the weather forecast for Heiloo?

Temperature & Precipitation

PM2.59.2 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX7.9
Very High
AD 300×250
Station readings (1 station within 25 km)
9.2
Median
9.2
Average
9.2
Low
9.2
High
PM2.5 µg/m³ · Model: 23.4 · Bias: +14.2

What is the 7-day forecast for Heiloo?

04-10
9.3° 4.8°
4.37 mm
04-11
8.7° 7.7°
4.94 mm
04-12
8.0° 7.2°
0.44 mm
04-13
8.9° 6.9°
0.56 mm
04-14
9.9° 6.0°
04-15
10.5° 6.3°
04-16
10.3° 6.9°
Both models agree Avg diff: 2.7°C

Where are air quality stations near Heiloo?

35
Wijk aan Zee-Bosweg
13.9 km PM2.5: 8.3 µg/m³ PM10: 15.4 µg/m³
33
PNH IJmuiden
16.6 km
43
Zaandam
20.2 km
22
Zaandam
20.2 km
43
Zaandam
20.2 km
85
Zaandam
20.2 km
72
Zaandam
20.2 km
33
Zaandam
20.2 km
54
Zaandam
20.2 km
50
Zaandam
20.2 km

What cities are near Heiloo?

54 Alkmaar 38 Castricum 54 Bergen 45 Heemskerk 63 Heerhugowaard 38 Beverwijk 38 Assendelft 38 Velsen-Zuid 45 IJmuiden 38 Zaanstad

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-10T00:07 UTC.