Air Quality in Ostrava, Czech Republic

Clear
19.0°C · 48.8% humidity
19.0°
Feels 19.0°
24
Good
Air quality is satisfactory. Enjoy outdoor activities.
12 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
9 7pm
9
11
24 10pm
28
31
13 1am
14
35
16 4am
17
17
17 7am
11
11
9 10am
9
9
9 1pm
9
9
9 4pm
9
9
Station readings
26
CAMS model adj -16
25
25
27
54
54
54
34
34
54
34
34
34
34
27
27
25
25
25
25
25
25
25
25
25
AD 728×90

Air Quality Index Trend

15h · 2 stn

Ostrava'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.

48.8%
Humidity
37.3 km/h
Wind WNW
1012.0 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
PM2.5
24
5.7 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

Temperature & Precipitation

PM2.5 Trend

15h · 2 stations
PM2.55.7 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
5.7
Median
5.13
Average
2.2
Low
9.6
High
PM2.5 µg/m³ · Model: 9.75 · Bias: +4.1
07-21
32.6° 15.1°
0.44 mm
07-22
23.0° 13.3°
0.25 mm
07-23
25.9° 15.2°
2.87 mm
07-24
22.5° 13.8°
1.5 mm
07-25
24.9° 15.5°
4.56 mm
07-26
23.6° 17.6°
1.06 mm
07-27
36.0° 17.1°
0.69 mm
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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 2026-07-21T20:10 UTC.