SmogRank / Czechia / Prague

Air quality in Prague

Prague, Czechia. PM2.5 from 4 reference monitors, updated hourly.

6.4 µg/m³
Good

Mean for 24 Sept, the most recent day with readings, 0.4× the WHO 24-hour guideline. No hourly readings have reached us since; some networks publish days late.

Rank

24 h
–
not enough data
7 days
–
not enough data
30 days
–
not enough data
Year
–
not enough data

Hour by hour

No hourly readings in the last few days. The chart returns when the monitors' data arrives.

Every day for a year

SepNovDecJanFebMarAprMayJunJulAugSepMonWedFri2025-09-29: 12.0 µg/m³2025-09-30: 10.7 µg/m³2025-10-01: no data2025-10-02: no data2025-10-03: no data2025-10-04: no data2025-10-05: no data2025-10-06: no data2025-10-07: no data2025-10-08: 6.7 µg/m³2025-10-09: no data2025-10-10: no data2025-10-11: no data2025-10-12: no data2025-10-13: no data2025-10-14: 9.3 µg/m³2025-10-15: no data2025-10-16: no data2025-10-17: no data2025-10-18: no data2025-10-19: no data2025-10-20: no data2025-10-21: 11.7 µg/m³2025-10-22: 14.8 µg/m³2025-10-23: 7.3 µg/m³2025-10-24: 3.9 µg/m³2025-10-25: no data2025-10-26: no data2025-10-27: 3.0 µg/m³2025-10-28: no data2025-10-29: 4.0 µg/m³2025-10-30: 6.8 µg/m³2025-10-31: 13.4 µg/m³2025-11-01: 18.8 µg/m³2025-11-02: 15.1 µg/m³2025-11-03: 6.8 µg/m³2025-11-04: no data2025-11-05: no data2025-11-06: no data2025-11-07: no data2025-11-08: 16.9 µg/m³2025-11-09: 12.7 µg/m³2025-11-10: 12.3 µg/m³2025-11-11: 11.8 µg/m³2025-11-12: 16.0 µg/m³2025-11-13: 9.5 µg/m³2025-11-14: 11.9 µg/m³2025-11-15: 15.1 µg/m³2025-11-16: 19.5 µg/m³2025-11-17: 12.5 µg/m³2025-11-18: 6.4 µg/m³2025-11-19: no data2025-11-20: 14.3 µg/m³2025-11-21: 13.9 µg/m³2025-11-22: no data2025-11-23: no data2025-11-24: no data2025-11-25: no data2025-11-26: no data2025-11-27: no data2025-11-28: no data2025-11-29: no data2025-11-30: no data2025-12-01: no data2025-12-02: 8.4 µg/m³2025-12-03: 11.6 µg/m³2025-12-04: 16.8 µg/m³2025-12-05: no data2025-12-06: no data2025-12-07: 9.1 µg/m³2025-12-08: 7.3 µg/m³2025-12-09: 6.2 µg/m³2025-12-10: 10.5 µg/m³2025-12-11: 8.5 µg/m³2025-12-12: 11.8 µg/m³2025-12-13: no data2025-12-14: 10.1 µg/m³2025-12-15: no data2025-12-16: 10.6 µg/m³2025-12-17: 18.7 µg/m³2025-12-18: no data2025-12-19: 9.9 µg/m³2025-12-20: 13.4 µg/m³2025-12-21: 18.6 µg/m³2025-12-22: 10.6 µg/m³2025-12-23: 9.6 µg/m³2025-12-24: 10.4 µg/m³2025-12-25: 16.1 µg/m³2025-12-26: 35.0 µg/m³2025-12-27: no data2025-12-28: no data2025-12-29: 13.5 µg/m³2025-12-30: 4.9 µg/m³2025-12-31: 4.1 µg/m³2026-01-01: no data2026-01-02: no data2026-01-03: 5.1 µg/m³2026-01-04: 6.8 µg/m³2026-01-05: no data2026-01-06: no data2026-01-07: no data2026-01-08: no data2026-01-09: no data2026-01-10: no data2026-01-11: no data2026-01-12: no data2026-01-13: no data2026-01-14: 20.5 µg/m³2026-01-15: 25.0 µg/m³2026-01-16: no data2026-01-17: no data2026-01-18: 11.7 µg/m³2026-01-19: no data2026-01-20: no data2026-01-21: 31.0 µg/m³2026-01-22: 41.0 µg/m³2026-01-23: 36.6 µg/m³2026-01-24: 54.1 µg/m³2026-01-25: 64.6 µg/m³2026-01-26: 13.0 µg/m³2026-01-27: 12.7 µg/m³2026-01-28: no data2026-01-29: no data2026-01-30: no data2026-01-31: no data2026-02-01: no data2026-02-02: no data2026-02-03: no data2026-02-04: 20.7 µg/m³2026-02-05: no data2026-02-06: no data2026-02-07: 21.6 µg/m³2026-02-08: 17.7 µg/m³2026-02-09: no data2026-02-10: no data2026-02-11: 10.5 µg/m³2026-02-12: 3.7 µg/m³2026-02-13: no data2026-02-14: 12.0 µg/m³2026-02-15: 5.9 µg/m³2026-02-16: no data2026-02-17: 20.0 µg/m³2026-02-18: 5.6 µg/m³2026-02-19: no data2026-02-20: no data2026-02-21: 12.1 µg/m³2026-02-22: 4.2 µg/m³2026-02-23: 2.3 µg/m³2026-02-24: 6.1 µg/m³2026-02-25: no data2026-02-26: no data2026-02-27: no data2026-02-28: no data2026-03-01: no data2026-03-02: no data2026-03-03: no data2026-03-04: 34.3 µg/m³2026-03-05: 41.4 µg/m³2026-03-06: no data2026-03-07: 33.3 µg/m³2026-03-08: no data2026-03-09: 31.2 µg/m³2026-03-10: no data2026-03-11: 24.5 µg/m³2026-03-12: 9.5 µg/m³2026-03-13: 8.4 µg/m³2026-03-14: 13.3 µg/m³2026-03-15: 8.9 µg/m³2026-03-16: no data2026-03-17: no data2026-03-18: no data2026-03-19: no data2026-03-20: no data2026-03-21: no data2026-03-22: no data2026-03-23: no data2026-03-24: 28.5 µg/m³2026-03-25: no data2026-03-26: no data2026-03-27: no data2026-03-28: no data2026-03-29: no data2026-03-30: 6.2 µg/m³2026-03-31: no data2026-04-01: 7.3 µg/m³2026-04-02: no data2026-04-03: no data2026-04-04: no data2026-04-05: no data2026-04-06: no data2026-04-07: 7.0 µg/m³2026-04-08: 9.3 µg/m³2026-04-09: 11.2 µg/m³2026-04-10: no data2026-04-11: 15.8 µg/m³2026-04-12: 23.0 µg/m³2026-04-13: 16.7 µg/m³2026-04-14: 21.8 µg/m³2026-04-15: no data2026-04-16: 32.8 µg/m³2026-04-17: no data2026-04-18: 15.2 µg/m³2026-04-19: 11.8 µg/m³2026-04-20: 3.5 µg/m³2026-04-21: 8.0 µg/m³2026-04-22: no data2026-04-23: no data2026-04-24: no data2026-04-25: no data2026-04-26: 8.3 µg/m³2026-04-27: 9.5 µg/m³2026-04-28: no data2026-04-29: 8.8 µg/m³2026-04-30: 10.6 µg/m³2026-05-01: 26.3 µg/m³2026-05-02: 14.3 µg/m³2026-05-03: 11.4 µg/m³2026-05-04: no data2026-05-05: no data2026-05-06: no data2026-05-07: 5.3 µg/m³2026-05-08: 6.0 µg/m³2026-05-09: 11.3 µg/m³2026-05-10: no data2026-05-11: 9.2 µg/m³2026-05-12: no data2026-05-13: 6.4 µg/m³2026-05-14: no data2026-05-15: no data2026-05-16: 7.8 µg/m³2026-05-17: 7.7 µg/m³2026-05-18: 8.3 µg/m³2026-05-19: 9.7 µg/m³2026-05-20: 7.6 µg/m³2026-05-21: 8.0 µg/m³2026-05-22: no data2026-05-23: no data2026-05-24: no data2026-05-25: no data2026-05-26: no data2026-05-27: 20.9 µg/m³2026-05-28: 8.1 µg/m³2026-05-29: 7.7 µg/m³2026-05-30: 13.6 µg/m³2026-05-31: 8.8 µg/m³2026-06-01: 5.9 µg/m³2026-06-02: 9.6 µg/m³2026-06-03: no data2026-06-04: 4.1 µg/m³2026-06-05: no data2026-06-06: no data2026-06-07: no data2026-06-08: no data2026-06-09: no data2026-06-10: no data2026-06-11: 3.8 µg/m³2026-06-12: no data2026-06-13: no data2026-06-14: no data2026-06-15: no data2026-06-16: no data2026-06-17: no data2026-06-18: no data2026-06-19: no data2026-06-20: no data2026-06-21: 14.4 µg/m³2026-06-22: no data2026-06-23: no data2026-06-24: no data2026-06-25: no data2026-06-26: no data2026-06-27: no data2026-06-28: no data2026-06-29: no data2026-06-30: no data2026-07-01: no data2026-07-02: no data2026-07-03: no data2026-07-04: no data2026-07-05: no data2026-07-06: no data2026-07-07: no data2026-07-08: no data2026-07-09: no data2026-07-10: no data2026-07-11: no data2026-07-12: no data2026-07-13: no data2026-07-14: no data2026-07-15: no data2026-07-16: no data2026-07-17: no data2026-07-18: no data2026-07-19: no data2026-07-20: no data2026-07-21: no data2026-07-22: no data2026-07-23: no data2026-07-24: no data2026-07-25: no data2026-07-26: no data2026-07-27: no data2026-07-28: no data2026-07-29: no data2026-07-30: no data2026-07-31: no data2026-08-01: no data2026-08-02: no data2026-08-03: 13.5 µg/m³2026-08-04: 17.3 µg/m³2026-08-05: no data2026-08-06: no data2026-08-07: no data2026-08-08: no data2026-08-09: no data2026-08-10: no data2026-08-11: no data2026-08-12: no data2026-08-13: no data2026-08-14: no data2026-08-15: no data2026-08-16: no data2026-08-17: no data2026-08-18: no data2026-08-19: no data2026-08-20: no data2026-08-21: no data2026-08-22: no data2026-08-23: no data2026-08-24: no data2026-08-25: no data2026-08-26: no data2026-08-27: no data2026-08-28: no data2026-08-29: no data2026-08-30: no data2026-08-31: no data2026-09-01: no data2026-09-02: no data2026-09-03: no data2026-09-04: no data2026-09-05: no data2026-09-06: no data2026-09-07: no data2026-09-08: no data2026-09-09: no data2026-09-10: no data2026-09-11: no data2026-09-12: no data2026-09-13: no data2026-09-14: no data2026-09-15: no data2026-09-16: no data2026-09-17: no data2026-09-18: no data2026-09-19: no data2026-09-20: no data2026-09-21: no data2026-09-22: no data2026-09-23: no data2026-09-24: 6.4 µg/m³2026-09-25: no data2026-09-26: no data2026-09-27: no data2026-09-28: no data2026-09-29: no data2026-09-30: no data
Good 0–9.0Moderate 9.1+Unhealthy for sensitive groups 35.5+Unhealthy 55.5+Very unhealthy 125.5+Hazardous 225.5+No data

37 of 129 measured days were over the WHO 24-hour guideline.

Daily world rank

#1#2014NovDecJanFebMarAprMayJunJulAugSep

Rank on each day's board (1 = most polluted city that day).

2026 against 2025, month by month

15Jan 2025: 12.0 µg/m³Jan 2026: 26.8 µg/m³JanFeb 2025: 31.0 µg/m³Feb 2026: 11.0 µg/m³FebMar 2025: 27.7 µg/m³Mar 2026: 21.8 µg/m³MarApr 2025: 13.0 µg/m³Apr 2026: 13.0 µg/m³AprMay 2025: 10.3 µg/m³May 2026: 10.4 µg/m³MayJunJul 2025: 8.3 µg/m³JulAug 2025: 10.9 µg/m³AugSep 2025: 8.0 µg/m³SepOct 2025: 8.1 µg/m³OctNov 2025: 13.3 µg/m³NovDec 2025: 12.0 µg/m³Dec

Faded bars: 2025. A month shows once it has 10 measured days.

Monitors

StationOperatorType
Praha 4-LibusODC-BYEEAReference
Praha 5-StodulkyODC-BYEEAReference
Praha 2-Riegrovy sadyODC-BYEEAReference
Praha 2-LegerovaODC-BYEEAReference
Prague, StodůlkyCC BY 4.0AirGradientLow-cost
Strasnice Nad kaplickouCC BY 4.0AirGradientLow-cost

The city's value is the median of its reference monitors each hour; low-cost sensors are listed but not counted when reference monitors exist. Data via OpenAQ; licences as listed. How we rank. Embed this on your site.

Other cities in Czechia

Stodůlky 4.0Říčany 3.9

30-day averages, µg/m³. All of Czechia →

Updated 2026-10-01 06:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.