Air Quality in Winchester, United Kingdom

Cloudy
10.2°C · 83.5% humidity
10.2°
Feels 10.2°
14
Good
Air quality is satisfactory. Enjoy outdoor activities.
3 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
1 12am
1
0
14 3am
10
8
6 6am
4
3
3 9am
2
2
2 12pm
3
0
1 3pm
1
1
1 6pm
1
1
1 9pm
3
3
Station readings
1
1
1
CAMS model adj -24
25
25
24
25
25
25
25
25
25
25
25
25
25
27
24
25
25
25
25
25
25
25
27
27
AD 728×90

Air Quality Index Trend

46h · 1 stn

Winchester'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.

83.5%
Humidity
16.0 km/h
Wind ENE
1028.4 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
14
3.32 µg/m³
PM10▲
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Winchester?

Temperature & Precipitation

PM2.5 Trend

46h · 1 station
PM2.53.32 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (3 stations within 25 km)
3.32
Median
2.52
Average
0.16
Low
4.3
High
PM2.5 µg/m³ · Model: 9.65 · Bias: +6.3
Both models agree Avg diff: 4.8°C

Where are air quality stations near Winchester?

31
Chilbolton Observatory, United Kingdom
12.6 km PM2.5: 7.4 µg/m³
21
Chilbolton Observatory, United Kingdom
12.6 km PM2.5: 5.0 µg/m³
91
Southampton Centre, United Kingdom
18.3 km PM2.5: 31.1 µg/m³
11
Southampton Centre, United Kingdom
18.3 km PM2.5: 2.6 µg/m³
1
IBASINGS39
23.9 km PM2.5: 0.2 µg/m³ PM10: 0.7 µg/m³

What cities are near Winchester?

13 Bishopstoke 13 Eastleigh 14 Romsey 13 Hedge End 13 Southampton 13 Totton 18 Andover 13 Hythe 13 Fareham 1 Alton
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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 2026-06-13T02:03 UTC.