Air Quality in Hemel Hempstead, United Kingdom

Windy
16.1°C · 67.8% humidity
16.1°
Feels 16.1°
5
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station

Nearby Monitoring Stations

AQI Forecast Calibrated
4 4pm
4
4
5 7pm
4
6
6 10pm
6
6
6 1am
4
4
4 4am
4
4
4 7am
4
6
6 10am
6
6
6 1pm
6
6
Station readings
5
CAMS model adj -21
25
25
25
25
25
27
27
27
27
27
25
25
25
25
25
25
25
27
27
27
27
27
27
27
AD 728×90

Air Quality Index Trend

27h · 1 stn

Hemel Hempstead'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.

67.8%
Humidity
82.0 km/h
Wind NE
1023.7 hPa
Pressure
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
5
1.17 µg/m³
PM10▲
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Hemel Hempstead?

Temperature & Precipitation

PM2.5 Trend

27h · 1 station
PM2.51.17 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX1.4
Low
AD 300×250
Station readings (1 station within 25 km)
1.17
Median
1.17
Average
1.17
Low
1.17
High
PM2.5 µg/m³ · Model: 6.0 · Bias: +4.8

What is the 7-day forecast for Hemel Hempstead?

05-29
16.1° 11.8°
1.56 mm
05-30
17.7° 11.3°
0.88 mm
05-31
18.1° 8.6°
06-01
19.4° 8.3°
0.56 mm
06-02
19.0° 10.7°
1.75 mm
06-03
15.9° 10.5°
0.06 mm
06-04
28.6° 17.6°
3.94 mm
Both models agree Avg diff: 3.6°C

Where are air quality stations near Hemel Hempstead?

5
Great Missenden
18.9 km PM2.5: 1.3 µg/m³ PM10: 1.4 µg/m³
38
Harlesden HP1
28.2 km PM2.5: 9.0 µg/m³
30
Harlesden LP1
28.2 km PM2.5: 7.3 µg/m³
36
Harlesden HP2
28.4 km PM2.5: 8.7 µg/m³
35
Harlesden LP2
28.4 km PM2.5: 8.5 µg/m³
23
Camden Kerbside, United Kingdom
30.0 km PM2.5: 5.5 µg/m³
30
Camden Kerbside, United Kingdom
30.0 km PM2.5: 7.2 µg/m³
30
Camden - Coopers Lane, United Kingdom
33.0 km PM2.5: 7.2 µg/m³

What cities are near Hemel Hempstead?

5 Berkhamsted 35 St Albans 39 North Watford 33 Harpenden 41 Watford 10 Chesham 41 Bushey 15 Amersham on the Hill 30 Luton 15 Amersham
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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 2026-05-29T18:45 UTC.