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Wassenaar (South Holland) (NL)

Air Quality Trend (last 7 days)

Good (0-50)
Moderate (51-100)
Unhealthy for Sensitive Groups (101-150)
Unhealthy (151-200)
Very Unhealthy (201-300)
Hazardous (300+)

Weather - 48h MET Norway

Cloudy
6°C
Cloudy
Humidity
76.7%
Wind
6 m/s
Pressure
1015.7 hPa
Direction
189°
Sunrise
04:00
Sunset
16:00
24h Forecast:
Temp.
6° / 11°
Precip.
1.2mm
Max wind
11.1 m/s

Hourly Forecast

03.04
Now
Weather
6
03.04
08:00
Weather
6
03.04
09:00
Weather
7
03.04
10:00
Weather
8
03.04
11:00
Weather
8
03.04
12:00
Weather
10°
8
03.04
13:00
Weather
10°
0.1
8
03.04
14:00
Weather
10°
0.4
9
03.04
15:00
Weather
10°
10
03.04
16:00
Weather
10°
10
03.04
17:00
Weather
11°
9
03.04
18:00
Weather
11°
10
03.04
19:00
Weather
11°
11
03.04
20:00
Weather
11°
11
03.04
21:00
Weather
11°
10
03.04
22:00
Weather
11°
0.2
10
03.04
23:00
Weather
11°
0.1
10
04.04
00:00
Weather
11°
0.1
10
04.04
01:00
Weather
11°
0.1
10
04.04
02:00
Weather
10°
0.1
9
04.04
03:00
Weather
10°
8
04.04
04:00
Weather
10°
0.1
8
04.04
05:00
Weather
7
04.04
06:00
Weather
6

Temperature

11°C
6°C
07:00
6°C
08:00
7°C
09:00
8°C
10:00
8°C
11:00
9°C
12:00
10°C
13:00
10°C
14:00
10°C
15:00
10°C
16:00
10°C
17:00
11°C
18:00
11°C
19:00
11°C
20:00
11°C
21:00
11°C
22:00
11°C
23:00
11°C
00:00
11°C
01:00
11°C
02:00
10°C
03:00
10°C
04:00
10°C
05:00
9°C
06:00
9°C
07:00 18:00 06:00

Precipitation

0.4mm
0mm
13:00
0.1mm
14:00
0.4mm
22:00
0.2mm
23:00
0.1mm
00:00
0.1mm
01:00
0.1mm
02:00
0.1mm
04:00
0.1mm
07:00 18:00 06:00

Wind

11.1m/s
0m/s
07:00
6.2 m/s
08:00
6.4 m/s
09:00
7.1 m/s
10:00
7.6 m/s
11:00
8 m/s
12:00
7.9 m/s
13:00
8.2 m/s
14:00
8.6 m/s
15:00
9.7 m/s
16:00
9.9 m/s
17:00
9.4 m/s
18:00
10.4 m/s
19:00
10.7 m/s
20:00
11.1 m/s
21:00
10.1 m/s
22:00
10 m/s
23:00
10.4 m/s
00:00
10.1 m/s
01:00
9.8 m/s
02:00
9.3 m/s
03:00
8.3 m/s
04:00
7.6 m/s
05:00
7.4 m/s
06:00
6.2 m/s
07:00 18:00 06:00

Radiation

0.082 uSv
4.6 km
10.3%

Measurement time: 2026-04-03 05:00

source: remap_europe

We display the worst measurements from all stations in the area. This approach provides a more cautious assessment of air quality, accounting for local pollution sources.

AQI
26.3 km
107
35.7%

Measurement time: 2026-04-03 08:00

Calculated from PM2.5/PM10

PM2.5
26.3 km
38 µg/m3
45.2%

Measurement time: 2026-04-03 08:00

source: Aqicn

PM10
65.7 km
23 µg/m3
16.4%

Measurement time: 2026-04-03 08:00

source: Aqicn

O3
41.8 km
24 µg/m3
15%

Measurement time: 2026-04-03 08:00

source: Aqicn

NO2
10.9 km
18.1 µg/m3
9.1%

Measurement time: 2026-04-03 08:00

source: Aqicn

SO2
49.8 km
0.6 µg/m3
0.2%

Measurement time: 2026-04-03 08:00

source: Aqicn

CO
41.8 km
0.0033 mg/m3
0%

Measurement time: 2026-04-03 08:00

source: Aqicn

About Air Quality in Wassenaar

Air quality in Wassenaar is monitored in real-time by sensors and measurement stations. On this page you'll find current data on major air pollutants including particulate matter PM2.5 and PM10, nitrogen dioxide (NO2), ozone (O3), and radiation levels.

Common Pollutants in Wassenaar

  • PM2.5 - fine particulate matter up to 2.5 micrometers, particularly harmful to health
  • PM10 - particulate matter up to 10 micrometers from traffic and industry
  • NO2 - nitrogen dioxide mainly emitted by vehicles
  • O3 - tropospheric ozone formed in photochemical reactions

When is Air Quality Best in Wassenaar?

Generally, the best air quality occurs:

  • Early morning (5:00-7:00 AM) before rush hour traffic
  • After rainfall which cleanses the atmosphere
  • During strong winds that disperse pollutants
  • In summer months when heating systems are less used

Tips for Runners in Wassenaar

If you're planning outdoor activities in Wassenaar, always check the current AQI value. When AQI exceeds 100, consider moving your workout indoors or shortening the distance. People with respiratory issues, children, and seniors should be especially cautious during elevated pollution levels. Choose routes away from busy streets and industrial areas.