Air Quality in Portsmouth, United Kingdom

Drizzle
17.3°C · 89.8% humidity
17.3°
Feels 17.3°
32
Good
Air quality is satisfactory. Enjoy outdoor activities.
2 stations

Nearby Monitoring Stations

AQI Forecast
34 3am
34
27
32 6am
31
30
36 9am
35
35
35 12pm
54
54
54 3pm
54
54
54 6pm
34
34
34 9pm
34
54
54 12am
54
54
AD 728×90

Air Quality Index Trend

46h · 6 stn

Portsmouth'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.

89.8%
Humidity
142.6 km/h
Wind SW
1011.9 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
32
7.7 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Portsmouth?

Temperature & Precipitation

PM2.5 Trend

46h · 6 stations
PM2.57.7 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (2 stations within 25 km)
7.7
Median
7.7
Average
7.7
Low
7.7
High
PM2.5 µg/m³ · Model: 6.15 · Bias: -1.5

What is the 7-day forecast for Portsmouth?

08-03
27.6° 17.3°
2.06 mm
08-04
22.8° 15.6°
08-05
20.2° 17.3°
0.62 mm
08-06
24.5° 15.9°
7.37 mm
08-07
23.6° 15.5°
0.81 mm
08-08
20.8° 14.7°
1.44 mm
08-09
19.5° 14.7°
Both models agree Avg diff: 2.8°C

Where are air quality stations near Portsmouth?

15
Portsmouth, United Kingdom
3.7 km PM2.5: 3.6 µg/m³
16
Portsmouth, United Kingdom
3.7 km PM2.5: 3.8 µg/m³
19
Southampton Centre, United Kingdom
24.6 km PM2.5: 4.6 µg/m³
23
Southampton Centre, United Kingdom
24.6 km PM2.5: 5.5 µg/m³

What cities are near Portsmouth?

32 Southsea 32 Gosport 32 South Hayling 32 Fareham 32 Hayling Island 32 Ryde 32 Havant 32 Waterlooville 32 Emsworth 32 Cowes
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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 2026-08-08T05:48 UTC.