CLARA

Environmental Intelligence

www.clara.city

Rue Bara 175 · 1070 Anderlecht

Reference year 2025

3.3Noise
6.0Temperature
7.1Air quality
7.8Wind

Around the address

Noise
50 mN
Temperature
50 mN
Air quality
50 mN
Wind
50 mN

Noise

What you hear
Road traffic · 74 dB86%
Rail0%
Aircraft · 48 dB14%
24-hour noise level (Lden)
74dBWHO 53 dB
Night (23–07)
61dBWHO 45 dB

What it means for you.Road traffic sets the sound level here. Rooms facing away from the street are much quieter: that is where the bedrooms belong.

In Anderlecht

9.4Best
0.0Worst
6.1Average
7Most frequent

Temperature

Comfortable hours by season
Spring76.4%
Summer60.4%
Autumn72%
Winter17.3%
32days/yrStrong heat-stress days(feels above 32 °C)
44days/yrCold-stress days(feels below 0 °C)
3nights/yrWarm nights(min above 20 °C)

What it means for you.Winter is the least comfortable season here, at 17.3% of daytime hours. In the seasons spent outdoors, summer is the one that limits comfort, at 60.4%; the most comfortable is spring, at 76.4%.

In Anderlecht

8.4Best
2.2Worst
4.1Average
3Most frequent

Air quality

The year, hour by hour
Excellent – very good26.3%
Good – fairly good44.6%
Moderate – poor24.4%
Very poor – horrible4.6%
71% Clean-air hours
Yearly average compared with the World Health Organization (WHO) recommendation
NO22.0 times
PM2.51.8 times
PM100.9 times
O3 (summer)1.4 times

What it means for you.Best air in September, weakest in January. Traffic NO2 is the pollutant to watch: air the rooms late at night or early in the morning, when traffic eases.

In Anderlecht

7.9Best
3.2Worst
7.1Average
7Most frequent

Wind

Share of hours
100%Calm
0%Slightly windy
0%Windy
0%Very windy
0%Danger
2km/hTypical breeze at street level
13km/hWindiest hour
20km/hStrongest gust

What it means for you.The surrounding buildings shelter this spot from every wind direction: a terrace or balcony here stays comfortable in any season.

In Anderlecht

10Best
0.2Worst
7.3Average
7Most frequent

How CLARA knows

01 · Digital twin

A 3D model of every building and street in Brussels, fed with continuous measurements from Earth-observation satellites and ground sensors.

02 · Urban physics

A CFD and AI simulator computes wind flow, pollutant dispersion, heat and noise around each building at 1 m resolution.

03 · A full year, this address

All 8,760 hours of a full year are reconstructed on the 1 m grid and sampled around the property. Noise, temperature, air quality and wind are scored 0–10.

Did you know CLARA is also a free app?
Check any address live, see the forecast, get alerts.