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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

Bewölkt
5°C
Bewölkt
Humidity
91.1%
Wind
6 m/s
Pressure
999.8 hPa
Direction
224°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
4° / 8°
Precip.
2.9mm
Max wind
6.9 m/s

Hourly Forecast

14.03
Now
Weather
6
14.03
01:00
Weather
14.03
02:00
Weather
0.2
14.03
03:00
Weather
0.2
14.03
04:00
Weather
0.3
14.03
05:00
Weather
0.1
14.03
06:00
Weather
14.03
07:00
Weather
14.03
08:00
Weather
0.1
14.03
09:00
Weather
0.2
14.03
10:00
Weather
0.4
5
14.03
11:00
Weather
0.2
5
14.03
12:00
Weather
0.1
14.03
13:00
Weather
0.3
6
14.03
14:00
Weather
7
14.03
15:00
Weather
14.03
16:00
Weather
14.03
17:00
Weather
0.2
6
14.03
18:00
Weather
0.5
5
14.03
19:00
Weather
14.03
20:00
Weather
0.1
14.03
21:00
Weather
14.03
22:00
Weather
14.03
23:00
Weather

Temperature

8°C
4°C
00:00
5°C
01:00
5°C
02:00
4°C
03:00
4°C
04:00
4°C
05:00
4°C
06:00
5°C
07:00
5°C
08:00
6°C
09:00
7°C
10:00
7°C
11:00
7°C
12:00
7°C
13:00
8°C
14:00
7°C
15:00
6°C
16:00
6°C
17:00
6°C
18:00
6°C
19:00
5°C
20:00
4°C
21:00
4°C
22:00
4°C
23:00
4°C
00:00 11:00 23:00

Precipitation

0.5mm
0mm
02:00
0.2mm
03:00
0.2mm
04:00
0.3mm
05:00
0.1mm
08:00
0.1mm
09:00
0.2mm
10:00
0.4mm
11:00
0.2mm
12:00
0.1mm
13:00
0.3mm
17:00
0.2mm
18:00
0.5mm
20:00
0.1mm
00:00 11:00 23:00

Wind

6.9m/s
0m/s
00:00
6.3 m/s
01:00
4.2 m/s
02:00
3.2 m/s
03:00
3.4 m/s
04:00
3.2 m/s
05:00
2.9 m/s
06:00
2.8 m/s
07:00
3.6 m/s
08:00
4.4 m/s
09:00
4.9 m/s
10:00
5.1 m/s
11:00
5.2 m/s
12:00
5 m/s
13:00
5.6 m/s
14:00
6.9 m/s
15:00
4.6 m/s
16:00
4.8 m/s
17:00
5.7 m/s
18:00
5.3 m/s
19:00
4.6 m/s
20:00
4.2 m/s
21:00
4.2 m/s
22:00
3.9 m/s
23:00
3.8 m/s
00:00 11:00 23:00

Radiation

0.089 uSv
29.1 km
11.1%

Measurement time: 2026-03-13 22:00

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
41.8 km
102
34%

Measurement time: 2026-03-13 23:00

Calculated from PM2.5/PM10

PM2.5
41.8 km
36 µg/m3
42.9%

Measurement time: 2026-03-13 23:00

source: Aqicn

O3
86.6 km
29 µg/m3
18.1%

Measurement time: 2026-03-14 00:00

source: Aqicn

PM10
10.9 km
13 µg/m3
9.3%

Measurement time: 2026-03-14 00:00

source: Aqicn

NO2
10.9 km
9 µg/m3
4.5%

Measurement time: 2026-03-14 00:00

source: Aqicn

SO2
41.8 km
0.3 µg/m3
0.1%

Measurement time: 2026-03-13 23:00

source: Aqicn

CO
41.8 km
0.0039 mg/m3
0%

Measurement time: 2026-03-13 23:00

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.