Air Quality in Katwijk aan Zee, Netherlands

Windy
14.6°C · 53.5% humidity
14.6°
Feels 14.6°
64
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
9 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
87 6pm
88
71
64 9pm
70
74
77 12am
79
81
82 3am
83
64
64 6am
64
64
65 9am
65
65
65 12pm
85
85
85 3pm
65
65
Station readings
87
88
71
61
CAMS model adj +31
54
54
54
54
54
54
54
54
54
54
54
34
34
34
34
34
34
34
34
54
54
54
34
34
AD 728×90

Air Quality Index Trend

46h · 3 stn

Katwijk aan Zee'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. Current PM2.5 concentration in Katwijk aan Zee is 1.2× the WHO 24-hour guideline of 15 µg/m³.

53.5%
Humidity
85.4 km/h
Wind NNE
1022.8 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
64
18.52 µg/m³
PM10
31
34.3 µg/m³
050100150200300500

What is the weather forecast for Katwijk aan Zee?

Temperature & Precipitation

PM2.5 Trend

46h · 3 stations
PM2.518.52 µg/m³ ×1.2 WHO
Moderate
PM1034.3 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (9 stations within 25 km)
18.52
Median
16.28
Average
7.7
Low
36.53
High
PM2.5 µg/m³ · Model: 13.5 · Bias: -5.0

What is the 7-day forecast for Katwijk aan Zee?

05-29
15.4° 13.8°
05-30
14.1° 13.0°
0.25 mm
05-31
21.1° 10.7°
0.81 mm
06-01
18.7° 11.5°
06-02
24.4° 14.1°
10.94 mm
06-03
15.0° 12.3°
3.19 mm
06-04
26.2° 20.5°
5.12 mm
Both models agree Avg diff: 3.5°C

Where are air quality stations near Katwijk aan Zee?

64
netherlands-voorhout-linnaeuslaan
6.0 km 18.8°C 74.2% RH PM2.5: 18.1 µg/m³ PM10: 19.5 µg/m³
57
Willem de Zwijgerlaan, Leiden
8.4 km PM2.5: 15.0 µg/m³
57
netherlands-hof-van-scheveningen
15.5 km PM2.5: 15.1 µg/m³ PM10: 15.4 µg/m³
58
Rebecquestraat, Den Haag
15.9 km PM2.5: 15.4 µg/m³
47
netherlands-laak-binckhorstlaan
15.9 km 20.0°C 67.8% RH PM2.5: 11.3 µg/m³ PM10: 12.5 µg/m³
53
Den Haag-Neherkade
16.6 km PM2.5: 13.1 µg/m³ PM10: 5.7 µg/m³
42
Schipholweg, Haarlem
24.9 km PM2.5: 10.1 µg/m³
29
Schipholweg, Haarlem
24.9 km PM2.5: 7.0 µg/m³
61
PNH Hoofddorp
25.6 km PM2.5: 16.9 µg/m³

What cities are near Katwijk aan Zee?

67 Noordwijk-Binnen 66 Oegstgeest 62 Wassenaar 65 Merenwijk 63 Leiden 67 Sassenheim 60 Voorschoten 63 Leiderdorp 56 Lisse 81 Scheveningen
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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 2026-05-29T19:16 UTC.