Is time to run? ⚠️☢️☣️

New Canaan (Connecticut) (US)

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

Partly cloudy
19°C
Partly cloudy
Humidity
49.9%
Wind
8 m/s
Pressure
1018.5 hPa
Direction
227°
Sunrise
04:00
Sunset
16:00
24h Forecast:
Temp.
12° / 22°
Precip.
24.6mm
Max wind
8.2 m/s

Hourly Forecast

30.03
Now
Weather
19°
8
30.03
20:00
Weather
19°
7
30.03
21:00
Weather
19°
7
30.03
22:00
Weather
18°
0.1
7
30.03
23:00
Weather
17°
1.4
7
31.03
00:00
Weather
15°
6
31.03
01:00
Weather
14°
6
31.03
02:00
Weather
14°
5
31.03
03:00
Weather
13°
5
31.03
04:00
Weather
12°
5
31.03
05:00
Weather
13°
6
31.03
06:00
Weather
13°
7
31.03
07:00
Weather
14°
1.1
7
31.03
08:00
Weather
14°
2.3
6
31.03
09:00
Weather
13°
1.6
6
31.03
10:00
Weather
13°
1.4
7
31.03
11:00
Weather
13°
8.8
7
31.03
12:00
Weather
13°
0.6
6
31.03
13:00
Weather
13°
3.6
8
31.03
14:00
Weather
15°
3.7
7
31.03
15:00
Weather
17°
7
31.03
16:00
Weather
18°
8
31.03
17:00
Weather
20°
7
31.03
18:00
Weather
22°
8

Temperature

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

Precipitation

8.8mm
0mm
22:00
0.1mm
23:00
1.4mm
07:00
1.1mm
08:00
2.3mm
09:00
1.6mm
10:00
1.4mm
11:00
8.8mm
12:00
0.6mm
13:00
3.6mm
14:00
3.7mm
19:00 06:00 18:00

Wind

8.2m/s
0m/s
19:00
8 m/s
20:00
7.2 m/s
21:00
7.1 m/s
22:00
7.3 m/s
23:00
6.7 m/s
00:00
5.9 m/s
01:00
6.3 m/s
02:00
5.2 m/s
03:00
5.1 m/s
04:00
5.2 m/s
05:00
5.6 m/s
06:00
7.1 m/s
07:00
7.4 m/s
08:00
6.2 m/s
09:00
5.8 m/s
10:00
6.7 m/s
11:00
6.9 m/s
12:00
5.7 m/s
13:00
7.8 m/s
14:00
6.9 m/s
15:00
6.8 m/s
16:00
8.2 m/s
17:00
7.1 m/s
18:00
7.6 m/s
19:00 06:00 18:00

Radiation

No sensor within 100 km.

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
62.1 km
94
31.3%

Measurement time: 2026-03-30 19:00

Calculated from PM2.5/PM10

O3
39.3 km
109.94 µg/m3
68.7%

Measurement time: 2026-03-30 21:03

source: OpenWeatherMap

PM2.5
62.1 km
33 µg/m3
39.3%

Measurement time: 2026-03-30 19:00

source: Aqicn

PM10
28.6 km
16 µg/m3
11.4%

Measurement time: 2026-03-30 20:00

source: Aqicn

NO2
39.3 km
5.59 µg/m3
2.8%

Measurement time: 2026-03-30 21:03

source: OpenWeatherMap

CO
39.3 km
0.16708 mg/m3
1.2%

Measurement time: 2026-03-30 21:03

source: OpenWeatherMap

SO2
39.3 km
2.73 µg/m3
0.8%

Measurement time: 2026-03-30 21:03

source: OpenWeatherMap

Info


Latitude: 41.14676
Longitude: -73.49484


Solar Energy

Low
187.2 W/m²
Solar Radiation
Solar Calculator
Calculate energy production for New Canaan

About Air Quality in New Canaan

Air quality in New Canaan 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 New Canaan

  • 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 New Canaan?

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 New Canaan

If you're planning outdoor activities in New Canaan, 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.