What is the air quality in Horsham today?

The current Air Quality Index (AQI) in Horsham is 36 (Good). PM2.5 concentration is 8.7 µg/m³.

What is the temperature in Horsham right now?

The current temperature in Horsham is 14.1°C (feels like 14.1°C). Humidity is 95.2% and wind speed is 39.1 km/h.

Is it safe to go outside in Horsham?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in Horsham, United Kingdom

Drizzle

14.1°C · 95.2% humidity

14.1°

Feels 14.1°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Calibrated model

Nearby Monitoring Stations

AQI Forecast

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Station readings 47h ago

AQI 18

PM2.5 4.2 µg/m³ · 47h ago

Air Quality Index Trend

45h · 20 stn

View full history →

Horsham'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.

95.2%

Humidity

39.1 km/h

Wind WNW

1018.6 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

8.7 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Horsham?

Temperature & Precipitation

PM2.5 Trend

45h · 20 stations

PM2.58.7 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

What is the 7-day forecast for Horsham?

10-21

14.1° 4.6°

0.69 mm

10-22

19.7° 7.5°

10-23

13.2° 10.2°

18.44 mm

10-24

14.8° 7.7°

0.13 mm

10-25

15.7° 9.8°

6.62 mm

10-26

11.8° 6.7°

1.5 mm

10-27

18.5° 5.6°

3.13 mm

Both models agree Avg diff: 3.6°C

Where are air quality stations near Horsham?

Hassocks

20.1 km 13.6°C 69.8% RH PM2.5: 4.0 µg/m³ PM10: 4.7 µg/m³

What cities are near Horsham?

36 Crawley 36 Horley 36 Haywards Heath 36 Burgess Hill 30 Dorking 32 Reigate 29 Redhill 36 East Grinstead 36 Godalming 36 Portslade

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ModerateAQI > 50 Unhealthy for Sensitive GroupsAQI > 100 UnhealthyAQI > 150 Very UnhealthyAQI > 200

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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 2026-10-21T13:15 UTC.