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Air quality, pollen & UV in Czechia
5 cities · updated 5 Oct 2026, 06:01 GMT
Typical AQI
49
Moderate
Cleanest
Liberec
AQI 45
Most polluted
Ostrava
AQI 53
Highest UV today
Pilsen
UV 3 · Moderate
Map of Czechia
All cities in Czechia
| City | Air quality | Max UV |
|---|---|---|
| Ostrava | 53 Moderate | 3 Low |
| Prague | 52 Moderate | 3 Low |
| Pilsen | 49 Moderate | 3 Moderate |
| Brno | 47 Moderate | 3 Low |
| Liberec | 45 Moderate | 3 Low |
Czechia air quality, pollen & UV - FAQ
- Is the air quality good in Czechia right now?
- Across 5 cities in Czechia, the typical European AQI is 49 (moderate). Cleanest air right now: Liberec (AQI 45); most polluted: Ostrava (AQI 53). Sensitive groups should consider limiting prolonged outdoor exertion.
- Which city in Czechia has the worst air quality today?
- Ostrava currently has the highest European AQI in Czechia at 53 (Moderate).
- Where is grass pollen highest in Czechia today?
- Brno, at 0.1 grains/m³.
- Where is UV highest in Czechia today?
- Pilsen, at UV 3 (moderate).
Levels are indicative, based on the Copernicus CAMS European model, and are not a medical diagnosis. If you have asthma or a severe allergy, follow your doctor’s advice.