Air Quality in Welwyn Garden City, United Kingdom
Drizzle
8.6°C · 90.2% humidity
8.6°
Feels 4.7°
35
Good
Air quality is satisfactory. Enjoy outdoor activities.
Calibrated model
Nearby Monitoring Stations
Welwyn Garden City's air quality — share it
AQI Forecast
24
9pm
24
24
35
12am
32
30
28
3am
27
26
25
6am
26
26
26
9am
25
25
25
12pm
24
25
25
3pm
24
25
25
6pm
25
25
Air Quality Index Trend
49h · 1 stnWelwyn Garden City's air quality is shaped by traffic emissions and residential heating. Pollution levels tend to peak during winter months when cold air traps emissions close to ground level.
90.2%
Humidity
31.3 km/h
Wind WNW
1020.0 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
8.44 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Welwyn Garden City?
Temperature & Precipitation
PM2.5 Trend
49h · 1 stationPM2.58.44 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
What is the 7-day forecast for Welwyn Garden City?
06-08
17.9° 9.2°
1.75 mm
06-09
16.9° 8.6°
0.44 mm
06-10
13.8° 12.2°
9.25 mm
06-11
25.9° 13.9°
2.19 mm
06-12
21.7° 9.8°
06-13
22.4° 10.1°
0.13 mm
06-14
19.8° 11.1°
2.81 mm
Both models agree
Avg diff: 3.9°C
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-06-08T23:28 UTC.