What is the air quality in Winchester today?

The current Air Quality Index (AQI) in Winchester is 30 (Good). PM2.5 concentration is 7.24 µg/m³.

What is the temperature in Winchester right now?

The current temperature in Winchester is 13.4°C (feels like 13.4°C). Humidity is 84.1% and wind speed is 82.3 km/h.

Is it safe to go outside in Winchester?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.7 (Low).

Air Quality in Winchester, United Kingdom

Rain

13.4°C · 84.1% humidity

13.4°

Feels 13.4°

Good

Air quality is satisfactory. Enjoy outdoor activities.

4 stations

Nearby Monitoring Stations

AQI Forecast Calibrated

1 6pm

30 9pm

12 12am

6 3am

3 6am

3 9am

2 12pm

2 3pm

Station readings

CAMS model adj -23

Air Quality Index Trend

48h · 1 stn

View full history →

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.

84.1%

Humidity

82.3 km/h

Wind WSW

1009.0 hPa

Pressure

0.7

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

7.24 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Winchester?

Temperature & Precipitation

PM2.5 Trend

48h · 1 station

PM2.57.24 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.7

Low

Station readings (4 stations within 25 km)

7.24

Median

5.99

Average

0.35

Low

8.2

High

PM2.5 µg/m³ · Model: 5.8 · Bias: -1.4

What is the 7-day forecast for Winchester?

06-08

17.1° 8.6°

3.25 mm

06-09

17.1° 7.1°

0.13 mm

06-10

16.6° 12.1°

8.0 mm

06-11

26.6° 13.6°

2.62 mm

06-12

20.7° 9.3°

06-13

22.6° 10.2°

0.06 mm

06-14

20.6° 10.0°

1.25 mm

Both models agree Avg diff: 3.9°C

Where are air quality stations near Winchester?

Chilbolton Observatory, United Kingdom

12.6 km PM2.5: 3.8 µg/m³

Chilbolton Observatory, United Kingdom

12.6 km PM2.5: 1.9 µg/m³

Southampton Centre, United Kingdom

18.3 km PM2.5: 14.0 µg/m³

Southampton Centre, United Kingdom

18.3 km PM2.5: 17.8 µg/m³

IBASINGS39

23.9 km PM2.5: 0.3 µg/m³ PM10: 0.9 µg/m³

What cities are near Winchester?

31 Bishopstoke 31 Eastleigh 32 Romsey 30 Hedge End 30 Southampton 30 Totton 34 Andover 30 Hythe 30 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 2026-06-08T20:43 UTC.