Get a monitor and contributor to air quality data in your city.
Air Quality 
Air Monitors
Air Purifiers
For Business
News
Support
Air quality near Cardiff Castle Street, Cardiff
Air quality index (AQI) and PM2.5 air pollution near Cardiff Castle Street, Cardiff
1.3K people follow this station
Air Quality Map
Real-time Cardiff Castle Street air pollution map
AIR QUALITY DATA CONTRIBUTORS
Station operated by
Welsh Government
Government
Pollen
What is the pollen count in Cardiff Castle Street today?
 | Index | Low | |
 | Tree pollen | Low | |
 | Grass pollen | Low | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather near Cardiff Castle Street, Cardiff?
| Weather | Clear sky |
| Temperature | 55.4°F |
| Humidity | 76% |
| Wind | 5.7 mp/h |
| Pressure | 30 Hg |
live aqi city ranking
Real-time United Kingdom city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Cardiff, Wales | 68 |
| 2 | Cambridge, England | 66 |
| 3 | Nottingham, England | 65 |
| 4 | Croydon, England | 64 |
| 5 | London, England | 64 |
| 6 | Southampton, England | 63 |
| 7 | Bradford, England | 62 |
| 8 | Luton, England | 62 |
| 9 | Stevenage, England | 62 |
| 10 | Erith, England | 61 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
live aqi station ranking
Real-time Cardiff air quality ranking
| # | station | US AQI |
|---|---|---|
| 1 | Cardiff Newport Road | 73 |
| 2 | Cardiff Castle Street | 69 |
| 3 | Cardiff Centre | 68 |
(local time)
SEE WORLD AQI RANKING
US AQI
69
live AQI index
Moderate
Overview
What is the current air quality near Cardiff Castle Street, Cardiff?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Moderate | 69 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 19µg/m³ | |
| PM10 | 34µg/m³ | |
| NO2 | 29µg/m³ | |
Health Recommendations
What is the current air quality near Cardiff Castle Street, Cardiff?
 | Sensitive groups should reduce outdoor exercise |
 | Close your windows to avoid dirty outdoor air GET A MONITOR |
 | Sensitive groups should wear a mask outdoors GET A MASK |
 | Sensitive groups should run an air purifier GET AN AIR PURIFIER |
Forecast
Cardiff Castle Street, Cardiff air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Friday, May 17 | Moderate 51 AQI US | |||
| Saturday, May 18 | Moderate 54 AQI US | |||
| Sunday, May 19 | Moderate 58 AQI US | |||
| Sunday, May 19 | Moderate 58 AQI US |  100% | 64.4° 50° |  13.4 mp/h |
| Today | Moderate 69 AQI US |  | 60.8° 46.4° | 11.2 mp/h |
| Tuesday, May 21 | Good 45 AQI US  | 70% | 59° 48.2° | 6.7 mp/h |
| Wednesday, May 22 | Moderate 54 AQI US | 70% | 60.8° 51.8° | 11.2 mp/h |
| Thursday, May 23 | Good 16 AQI US |  | 55.4° 48.2° | 11.2 mp/h |
| Friday, May 24 | Good 11 AQI US | | 57.2° 44.6° | 4.5 mp/h |
| Saturday, May 25 | Moderate 61 AQI US | 100% | 59° 48.2° | 13.4 mp/h |
| Sunday, May 26 | Good 29 AQI US | 100% | 59° 51.8° | 13.4 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
Cardiff Castle Street air quality data attribution
Contributor
- Welsh Government
1 station
Government Contributor
Data source
Where is the cleanest air quality in Cardiff?
AQI US, Metric