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21CNCStudio · Sample locations

Outdoor

Home · London, United Kingdom

Review outdoor air, weather risks, and the next ventilation windows.

Atmosphere Monitor

London, United KingdomLatest observation
Suitable for ventilationOutdoor air quality is good and conditions are suitable.Today at 08:00: ventilate with caution because confirmed local conditions require extra care.
Air quality

Outdoor pollutants

PM2.52.6 ug/m3
PM105.8 ug/m3
SO21 ug/m3
Dust0 ug/m3
AQI25Good
Ozone55 ug/m3
NO29 ug/m3
CO116 ug/m3
Highest available pollen: Alder 0 grains per cubic metre.
Current

Ventilation guidance

Suitable for ventilationHigh confidenceOutdoor air quality is good and conditions are suitable.Suitable
Ventilate with cautionToday, 08:00Confirmed local weather will allow only a short, attended ventilation period.Upcoming
Weather

Ventilation context

Temperature

Current14.6 C
Feels like12.9 C
Past 6hForecast 6h
01:0007:0013:00
Moisture
Humidity91%
Dew point13.1 C
Precipitation
Rain0.3 mm
ConditionDrizzle

Wind

Wind18 km/h
Gusts41 km/h
Solar exposure
UV index0.0
Solar radiation3 W/m²
Forecast

Next 24 hours

Now
14.6 C
AQI25PM2.52.6Gust41 km/hRain0.3 mm
SuitableAir quality is good
08:00
13.8 C
AQI25PM2.53.4Gust39 km/hRain0.6 mm
Use cautionWeather caution
09:00
14.0 C
AQI25PM2.53.4Gust36 km/hRain0.2 mm
SuitableAir quality is good
10:00
14.4 C
AQI25PM2.52.9Gust36 km/hRain0.0 mm
SuitableAir quality is good
11:00
15.3 C
AQI25PM2.52.6Gust43 km/hRain0.0 mm
SuitableAir quality is good
12:00
15.9 C
AQI25PM2.52.8Gust44 km/hRain0.0 mm
SuitableAir quality is good
13:00
16.1 C
AQI26PM2.53.2Gust43 km/hRain0.0 mm
SuitableAir quality is good
14:00
14.6 C
AQI26PM2.53.7Gust45 km/hRain0.0 mm
Use cautionWeather caution
15:00
14.3 C
AQI26PM2.53.6Gust46 km/hRain0.1 mm
Use cautionWeather caution
16:00
13.8 C
AQI27PM2.54.6Gust40 km/hRain0.0 mm
SuitableAir quality is good
17:00
13.5 C
AQI27PM2.54.8Gust34 km/hRain0.0 mm
SuitableAir quality is good
18:00
13.1 C
AQI27PM2.55.3Gust33 km/hRain0.0 mm
Ventilate brieflyCold outdoor air
19:00
12.3 C
AQI27PM2.55.6Gust28 km/hRain0.0 mm
Ventilate brieflyCold outdoor air
20:00
11.9 C
AQI25PM2.55.6Gust24 km/hRain0.0 mm
Ventilate brieflyCold outdoor air
21:00
11.2 C
AQI24PM2.55.7Gust23 km/hRain0.0 mm
Ventilate brieflyCold outdoor air
22:00
10.9 C
AQI23PM2.56.1Gust27 km/hRain0.0 mm
Ventilate brieflyCold outdoor air
23:00
10.4 C
AQI21PM2.56.4Gust25 km/hRain0.0 mm
Ventilate brieflyCold outdoor air
Wed 00:00midnight
10.0 C
AQI22PM2.56.7Gust22 km/hRain0.0 mm
Ventilate brieflyCold outdoor air
Wed 01:00
9.8 C
AQI22PM2.56.7Gust20 km/hRain0.0 mm
Ventilate brieflyCold outdoor air
Wed 02:00
9.5 C
AQI23PM2.56.3Gust20 km/hRain0.0 mm
Ventilate brieflyCold outdoor air
Wed 03:00
9.2 C
AQI24PM2.56.0Gust20 km/hRain0.0 mm
Ventilate brieflyCold outdoor air
Wed 04:00
8.9 C
AQI25PM2.55.4Gust21 km/hRain0.0 mm
Ventilate brieflyCold outdoor air
Wed 05:00
8.8 C
AQI25PM2.55.1Gust19 km/hRain0.0 mm
Ventilate brieflyCold outdoor air
Wed 06:00
8.7 C
AQI26PM2.55.1Gust14 km/hRain0.0 mm
Ventilate brieflyCold outdoor air
Wed 07:00
8.7 C
AQI26PM2.55.7Gust16 km/hRain0.0 mm
Ventilate brieflyCold outdoor air
Tomorrow

Clouds

Ventilate briefly
Temperature8.7-16.0 CRain0.0 mmPM2.5 max12.0 ug/m3Gust max33 km/h
Morning
9.1 CAQI 27
Day
15.6 CAQI 30
Evening
14.9 CAQI 32
Night
13.1 CAQI 36
Thu 29 Oct

Clouds

Use caution
Temperature8.7-13.5 CRain0.0 mmPM2.5 max20.6 ug/m3Gust max13 km/h
Morning
8.7 CAQI 52
Day
11.1 CAQI 57
Evening
13.5 CAQI 61
Night
11.2 CAQI 64