Ostrava, Moravskoslezsky Kraj, Czechia Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
August Air Quality Analysis
Ostrava, Moravskoslezsky Kraj, Czechia
2022
2023
2024
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
30th Aug 2024
78AQILowest AQI recorded on
24th Aug 2025
17AQISame Day Analysis (7th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 2nd highest AQI at 41 of Good air quality, showing improvement over 2024 on the same day.
Day & Night AQI Trend: 6th Aug - 7th Aug 2026
Ostrava, Moravskoslezsky Kraj, Czechia
AQI
Day
Night
.
5 AM6th Aug 2026
8 PM
4 AM7th Aug 2026
Day time
Avg. Highest Time
8AM6th Aug
67AQI
Avg. Lowest Time
7PM6th Aug
36AQI
Night time
Avg. Highest Time
11PM6th Aug
49AQI
Avg. Lowest Time
2AM7th Aug
42AQI
In the last 24 hours,
Ostrava's AQI reached its highest point of 67 at 8 AM during the Day, while the lowest point, 36, was recorded at 7 PM during the Day between 6th Aug and 7th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Ostrava, Moravskoslezsky Kraj, Czechia
JulAug
09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th
Day
Night
9th Jul 2026225 AMAQI
9th Jul 2026206 AMAQI
9th Jul 2026227 AMAQI
9th Jul 2026258 AMAQI
9th Jul 2026259 AMAQI
9th Jul 20262510 AMAQI
9th Jul 20262211 AMAQI
9th Jul 20261612 PMAQI
9th Jul 2026101 PMAQI
9th Jul 202692 PMAQI
9th Jul 2026183 PMAQI
9th Jul 2026274 PMAQI
9th Jul 2026265 PMAQI
9th Jul 2026286 PMAQI
9th Jul 2026267 PMAQI
9th Jul 2026178 PMAQI
9th Jul 2026239 PMAQI
9th Jul 20262710 PMAQI
9th Jul 20262811 PMAQI
10th Jul 20262812 AMAQI
10th Jul 2026281 AMAQI
10th Jul 2026292 AMAQI
10th Jul 2026293 AMAQI
10th Jul 2026264 AMAQI
16°C12/20°C
10th Jul 2026265 AMAQI
10th Jul 2026246 AMAQI
10th Jul 2026237 AMAQI
10th Jul 2026228 AMAQI
10th Jul 2026259 AMAQI
10th Jul 20262810 AMAQI
10th Jul 20262811 AMAQI
10th Jul 20262912 PMAQI
10th Jul 2026221 PMAQI
10th Jul 2026242 PMAQI
10th Jul 2026303 PMAQI
10th Jul 2026324 PMAQI
10th Jul 2026325 PMAQI
10th Jul 2026316 PMAQI
10th Jul 2026307 PMAQI
10th Jul 2026308 PMAQI
10th Jul 2026279 PMAQI
10th Jul 20263110 PMAQI
10th Jul 20263111 PMAQI
11th Jul 20263212 AMAQI
11th Jul 2026301 AMAQI
11th Jul 2026312 AMAQI
11th Jul 2026303 AMAQI
11th Jul 2026264 AMAQI
18°C12/23°C
11th Jul 2026265 AMAQI
11th Jul 2026226 AMAQI
11th Jul 2026227 AMAQI
11th Jul 2026228 AMAQI
11th Jul 2026249 AMAQI
11th Jul 20262810 AMAQI
11th Jul 20262811 AMAQI
11th Jul 20262812 PMAQI
11th Jul 2026251 PMAQI
11th Jul 2026282 PMAQI
11th Jul 2026283 PMAQI
11th Jul 2026284 PMAQI
11th Jul 2026295 PMAQI
11th Jul 2026266 PMAQI
11th Jul 2026257 PMAQI
11th Jul 2026248 PMAQI
11th Jul 2026259 PMAQI
11th Jul 20262610 PMAQI
11th Jul 20262811 PMAQI
12th Jul 20262712 AMAQI
12th Jul 2026271 AMAQI
12th Jul 2026262 AMAQI
12th Jul 2026293 AMAQI
12th Jul 2026244 AMAQI
18°C13/23°C
12th Jul 2026255 AMAQI
12th Jul 2026226 AMAQI
12th Jul 2026207 AMAQI
12th Jul 2026208 AMAQI
12th Jul 2026249 AMAQI
12th Jul 20262710 AMAQI
12th Jul 20262711 AMAQI
12th Jul 20262812 PMAQI
12th Jul 2026261 PMAQI
12th Jul 2026272 PMAQI
12th Jul 2026263 PMAQI
12th Jul 2026254 PMAQI
12th Jul 2026275 PMAQI
12th Jul 2026286 PMAQI
12th Jul 2026277 PMAQI
12th Jul 2026268 PMAQI
12th Jul 2026239 PMAQI
12th Jul 20262510 PMAQI
12th Jul 20262411 PMAQI
13th Jul 20262412 AMAQI
13th Jul 2026271 AMAQI
13th Jul 2026282 AMAQI
13th Jul 2026283 AMAQI
13th Jul 2026264 AMAQI
16°C14/20°C
13th Jul 2026255 AMAQI
13th Jul 2026216 AMAQI
13th Jul 2026237 AMAQI
13th Jul 2026248 AMAQI
13th Jul 2026269 AMAQI
13th Jul 20263110 AMAQI
13th Jul 20263111 AMAQI
13th Jul 20262912 PMAQI
13th Jul 2026281 PMAQI
13th Jul 2026282 PMAQI
13th Jul 2026293 PMAQI
13th Jul 2026304 PMAQI
13th Jul 2026305 PMAQI
13th Jul 2026296 PMAQI
13th Jul 2026337 PMAQI
13th Jul 2026298 PMAQI
13th Jul 2026259 PMAQI
13th Jul 20262910 PMAQI
13th Jul 20262911 PMAQI
14th Jul 20264612 AMAQI
14th Jul 2026511 AMAQI
14th Jul 2026392 AMAQI
14th Jul 2026433 AMAQI
14th Jul 2026334 AMAQI
19°C13/25°C
14th Jul 2026245 AMAQI
14th Jul 2026226 AMAQI
14th Jul 2026227 AMAQI
14th Jul 2026218 AMAQI
14th Jul 2026249 AMAQI
14th Jul 20264310 AMAQI
14th Jul 20264511 AMAQI
14th Jul 20262812 PMAQI
14th Jul 2026241 PMAQI
14th Jul 2026312 PMAQI
14th Jul 2026403 PMAQI
14th Jul 2026534 PMAQI
14th Jul 2026615 PMAQI
14th Jul 2026636 PMAQI
14th Jul 2026657 PMAQI
14th Jul 2026668 PMAQI
14th Jul 2026759 PMAQI
14th Jul 20267210 PMAQI
14th Jul 20264711 PMAQI
15th Jul 20263812 AMAQI
15th Jul 2026291 AMAQI
15th Jul 2026442 AMAQI
15th Jul 2026483 AMAQI
15th Jul 2026524 AMAQI
22°C15/28°C
15th Jul 2026555 AMAQI
15th Jul 2026436 AMAQI
15th Jul 2026377 AMAQI
15th Jul 2026458 AMAQI
15th Jul 2026439 AMAQI
15th Jul 20264310 AMAQI
15th Jul 20264211 AMAQI
15th Jul 20264312 PMAQI
15th Jul 2026431 PMAQI
15th Jul 2026482 PMAQI
15th Jul 2026423 PMAQI
15th Jul 2026344 PMAQI
15th Jul 2026365 PMAQI
15th Jul 2026346 PMAQI
15th Jul 2026337 PMAQI
15th Jul 2026348 PMAQI
15th Jul 2026409 PMAQI
15th Jul 20264810 PMAQI
15th Jul 20265511 PMAQI
16th Jul 20265512 AMAQI
16th Jul 2026561 AMAQI
16th Jul 2026582 AMAQI
16th Jul 2026533 AMAQI
16th Jul 2026544 AMAQI
19°C17/24°C
16th Jul 2026545 AMAQI
16th Jul 2026516 AMAQI
16th Jul 2026547 AMAQI
16th Jul 2026608 AMAQI
16th Jul 2026659 AMAQI
16th Jul 20267210 AMAQI
16th Jul 20268011 AMAQI
16th Jul 20268412 PMAQI
16th Jul 2026821 PMAQI
16th Jul 2026762 PMAQI
16th Jul 2026713 PMAQI
16th Jul 2026584 PMAQI
16th Jul 2026485 PMAQI
16th Jul 2026396 PMAQI
16th Jul 2026407 PMAQI
16th Jul 2026448 PMAQI
16th Jul 2026489 PMAQI
16th Jul 20264710 PMAQI
16th Jul 20264711 PMAQI
17th Jul 20264812 AMAQI
17th Jul 2026581 AMAQI
17th Jul 2026582 AMAQI
17th Jul 2026583 AMAQI
17th Jul 2026574 AMAQI
22°C15/29°C
17th Jul 2026555 AMAQI
17th Jul 2026556 AMAQI
17th Jul 2026647 AMAQI
17th Jul 2026718 AMAQI
17th Jul 2026689 AMAQI
17th Jul 20266810 AMAQI
17th Jul 20266311 AMAQI
17th Jul 20265312 PMAQI
17th Jul 2026441 PMAQI
17th Jul 2026352 PMAQI
17th Jul 2026393 PMAQI
17th Jul 2026374 PMAQI
17th Jul 2026315 PMAQI
17th Jul 2026296 PMAQI
17th Jul 2026277 PMAQI
17th Jul 2026308 PMAQI
17th Jul 2026349 PMAQI
17th Jul 20263910 PMAQI
17th Jul 20264211 PMAQI
18th Jul 20264312 AMAQI
18th Jul 2026391 AMAQI
18th Jul 2026322 AMAQI
18th Jul 2026273 AMAQI
18th Jul 2026244 AMAQI
23°C18/31°C
18th Jul 2026225 AMAQI
18th Jul 2026276 AMAQI
18th Jul 2026307 AMAQI
18th Jul 2026318 AMAQI
18th Jul 2026299 AMAQI
18th Jul 20262910 AMAQI
18th Jul 20262911 AMAQI
18th Jul 20262812 PMAQI
18th Jul 2026261 PMAQI
18th Jul 2026302 PMAQI
18th Jul 2026383 PMAQI
18th Jul 2026434 PMAQI
18th Jul 2026485 PMAQI
18th Jul 2026486 PMAQI
18th Jul 2026487 PMAQI
18th Jul 2026498 PMAQI
18th Jul 2026509 PMAQI
18th Jul 20264010 PMAQI
18th Jul 20264111 PMAQI
19th Jul 20263912 AMAQI
19th Jul 2026451 AMAQI
19th Jul 2026502 AMAQI
19th Jul 2026553 AMAQI
19th Jul 2026544 AMAQI
21°C17/26°C
19th Jul 2026485 AMAQI
19th Jul 2026546 AMAQI
19th Jul 2026527 AMAQI
19th Jul 2026488 AMAQI
19th Jul 2026509 AMAQI
19th Jul 20265610 AMAQI
19th Jul 20265411 AMAQI
19th Jul 20265512 PMAQI
19th Jul 2026531 PMAQI
19th Jul 2026502 PMAQI
19th Jul 2026433 PMAQI
19th Jul 2026414 PMAQI
19th Jul 2026425 PMAQI
19th Jul 2026456 PMAQI
19th Jul 2026477 PMAQI
19th Jul 2026528 PMAQI
19th Jul 2026469 PMAQI
19th Jul 20264310 PMAQI
19th Jul 20263911 PMAQI
20th Jul 20263912 AMAQI
20th Jul 2026401 AMAQI
20th Jul 2026432 AMAQI
20th Jul 2026413 AMAQI
20th Jul 2026334 AMAQI
19°C14/27°C
20th Jul 2026385 AMAQI
20th Jul 2026396 AMAQI
20th Jul 2026367 AMAQI
20th Jul 2026358 AMAQI
20th Jul 2026369 AMAQI
20th Jul 20264010 AMAQI
20th Jul 20263911 AMAQI
20th Jul 20263312 PMAQI
20th Jul 2026251 PMAQI
20th Jul 2026232 PMAQI
20th Jul 2026253 PMAQI
20th Jul 2026254 PMAQI
20th Jul 2026275 PMAQI
20th Jul 2026256 PMAQI
20th Jul 2026287 PMAQI
20th Jul 2026308 PMAQI
20th Jul 2026309 PMAQI
20th Jul 20263410 PMAQI
20th Jul 20263811 PMAQI
21st Jul 20264312 AMAQI
21st Jul 2026421 AMAQI
21st Jul 2026392 AMAQI
21st Jul 2026393 AMAQI
21st Jul 2026364 AMAQI
17°C12/22°C
21st Jul 2026486 AMAQI
21st Jul 2026497 AMAQI
21st Jul 2026408 AMAQI
21st Jul 2026409 AMAQI
21st Jul 20263410 AMAQI
21st Jul 20263311 AMAQI
21st Jul 20263912 PMAQI
21st Jul 2026271 PMAQI
21st Jul 2026262 PMAQI
21st Jul 2026463 PMAQI
21st Jul 2026544 PMAQI
21st Jul 2026465 PMAQI
21st Jul 2026276 PMAQI
21st Jul 2026287 PMAQI
21st Jul 2026348 PMAQI
21st Jul 2026329 PMAQI
21st Jul 20263110 PMAQI
21st Jul 20264711 PMAQI
22nd Jul 20263012 AMAQI
22nd Jul 2026301 AMAQI
22nd Jul 2026322 AMAQI
22nd Jul 2026353 AMAQI
22nd Jul 2026304 AMAQI
16°C11/20°C
22nd Jul 2026295 AMAQI
22nd Jul 2026306 AMAQI
22nd Jul 2026247 AMAQI
22nd Jul 2026238 AMAQI
22nd Jul 2026259 AMAQI
22nd Jul 20262810 AMAQI
22nd Jul 20264011 AMAQI
22nd Jul 20263312 PMAQI
22nd Jul 2026281 PMAQI
22nd Jul 2026282 PMAQI
22nd Jul 2026283 PMAQI
22nd Jul 2026234 PMAQI
22nd Jul 2026225 PMAQI
22nd Jul 2026226 PMAQI
22nd Jul 2026197 PMAQI
22nd Jul 2026248 PMAQI
22nd Jul 2026319 PMAQI
22nd Jul 20263610 PMAQI
22nd Jul 20264111 PMAQI
23rd Jul 20264612 AMAQI
23rd Jul 2026541 AMAQI
23rd Jul 2026472 AMAQI
23rd Jul 2026443 AMAQI
23rd Jul 2026404 AMAQI
17°C11/22°C
23rd Jul 2026385 AMAQI
23rd Jul 2026526 AMAQI
23rd Jul 2026487 AMAQI
23rd Jul 2026468 AMAQI
23rd Jul 2026419 AMAQI
23rd Jul 20264810 AMAQI
23rd Jul 20265011 AMAQI
23rd Jul 20264412 PMAQI
23rd Jul 2026361 PMAQI
23rd Jul 2026312 PMAQI
23rd Jul 2026373 PMAQI
23rd Jul 2026414 PMAQI
23rd Jul 2026335 PMAQI
23rd Jul 2026306 PMAQI
23rd Jul 2026347 PMAQI
23rd Jul 2026368 PMAQI
23rd Jul 2026349 PMAQI
23rd Jul 20263510 PMAQI
23rd Jul 20264311 PMAQI
24th Jul 20263212 AMAQI
24th Jul 2026321 AMAQI
24th Jul 2026322 AMAQI
24th Jul 2026303 AMAQI
24th Jul 2026374 AMAQI
15°C11/18°C
24th Jul 2026395 AMAQI
24th Jul 2026356 AMAQI
24th Jul 2026307 AMAQI
24th Jul 2026368 AMAQI
24th Jul 2026279 AMAQI
24th Jul 20263210 AMAQI
24th Jul 20263911 AMAQI
24th Jul 20264212 PMAQI
24th Jul 2026381 PMAQI
24th Jul 2026322 PMAQI
24th Jul 2026323 PMAQI
24th Jul 2026334 PMAQI
24th Jul 2026365 PMAQI
24th Jul 2026396 PMAQI
24th Jul 2026347 PMAQI
24th Jul 2026358 PMAQI
24th Jul 2026359 PMAQI
24th Jul 20264010 PMAQI
24th Jul 20264011 PMAQI
25th Jul 20263612 AMAQI
25th Jul 2026311 AMAQI
25th Jul 2026362 AMAQI
25th Jul 2026403 AMAQI
25th Jul 2026374 AMAQI
15°C10/20°C
25th Jul 2026525 AMAQI
25th Jul 2026486 AMAQI
25th Jul 2026487 AMAQI
25th Jul 2026468 AMAQI
25th Jul 2026429 AMAQI
25th Jul 20264810 AMAQI
25th Jul 20264711 AMAQI
25th Jul 20263412 PMAQI
25th Jul 2026321 PMAQI
25th Jul 2026322 PMAQI
25th Jul 2026323 PMAQI
25th Jul 2026294 PMAQI
25th Jul 2026345 PMAQI
25th Jul 2026326 PMAQI
25th Jul 2026307 PMAQI
25th Jul 2026328 PMAQI
25th Jul 2026299 PMAQI
25th Jul 20263410 PMAQI
25th Jul 20263911 PMAQI
26th Jul 20265012 AMAQI
26th Jul 2026361 AMAQI
26th Jul 2026542 AMAQI
26th Jul 2026553 AMAQI
26th Jul 2026424 AMAQI
18°C11/25°C
26th Jul 2026445 AMAQI
26th Jul 2026496 AMAQI
26th Jul 2026507 AMAQI
26th Jul 2026468 AMAQI
26th Jul 2026499 AMAQI
26th Jul 20265410 AMAQI
26th Jul 20265111 AMAQI
26th Jul 20263812 PMAQI
26th Jul 2026331 PMAQI
26th Jul 2026362 PMAQI
26th Jul 2026323 PMAQI
26th Jul 2026344 PMAQI
26th Jul 2026335 PMAQI
26th Jul 2026376 PMAQI
26th Jul 2026377 PMAQI
26th Jul 2026468 PMAQI
26th Jul 2026509 PMAQI
26th Jul 20264610 PMAQI
26th Jul 20264811 PMAQI
27th Jul 20266012 AMAQI
27th Jul 2026591 AMAQI
27th Jul 2026562 AMAQI
27th Jul 2026553 AMAQI
27th Jul 2026404 AMAQI
22°C15/30°C
27th Jul 2026365 AMAQI
27th Jul 2026336 AMAQI
27th Jul 2026367 AMAQI
27th Jul 2026458 AMAQI
27th Jul 2026479 AMAQI
27th Jul 20264710 AMAQI
27th Jul 20265211 AMAQI
27th Jul 20264912 PMAQI
27th Jul 2026501 PMAQI
27th Jul 2026442 PMAQI
27th Jul 2026453 PMAQI
27th Jul 2026394 PMAQI
27th Jul 2026435 PMAQI
27th Jul 2026366 PMAQI
27th Jul 2026347 PMAQI
27th Jul 2026378 PMAQI
27th Jul 2026359 PMAQI
27th Jul 20263410 PMAQI
27th Jul 20263611 PMAQI
28th Jul 20264212 AMAQI
28th Jul 2026411 AMAQI
28th Jul 2026262 AMAQI
28th Jul 2026243 AMAQI
28th Jul 2026294 AMAQI
20°C14/24°C
28th Jul 2026325 AMAQI
28th Jul 2026346 AMAQI
28th Jul 2026267 AMAQI
28th Jul 2026328 AMAQI
28th Jul 2026249 AMAQI
28th Jul 20263010 AMAQI
28th Jul 20264011 AMAQI
28th Jul 20263012 PMAQI
28th Jul 2026321 PMAQI
28th Jul 2026252 PMAQI
28th Jul 2026273 PMAQI
28th Jul 2026304 PMAQI
28th Jul 2026345 PMAQI
28th Jul 2026286 PMAQI
28th Jul 2026337 PMAQI
28th Jul 2026288 PMAQI
28th Jul 2026319 PMAQI
28th Jul 20263310 PMAQI
28th Jul 20263211 PMAQI
29th Jul 20263612 AMAQI
29th Jul 2026441 AMAQI
29th Jul 2026432 AMAQI
29th Jul 2026423 AMAQI
29th Jul 2026424 AMAQI
19°C13/24°C
29th Jul 2026415 AMAQI
29th Jul 2026496 AMAQI
29th Jul 2026467 AMAQI
29th Jul 2026478 AMAQI
29th Jul 2026509 AMAQI
29th Jul 20265810 AMAQI
29th Jul 20265211 AMAQI
29th Jul 20264512 PMAQI
29th Jul 2026391 PMAQI
29th Jul 2026292 PMAQI
29th Jul 2026303 PMAQI
29th Jul 2026504 PMAQI
29th Jul 2026515 PMAQI
29th Jul 2026376 PMAQI
29th Jul 2026287 PMAQI
29th Jul 2026268 PMAQI
29th Jul 2026459 PMAQI
29th Jul 20263810 PMAQI
29th Jul 20264811 PMAQI
30th Jul 20264812 AMAQI
30th Jul 2026511 AMAQI
30th Jul 2026572 AMAQI
30th Jul 2026583 AMAQI
30th Jul 2026534 AMAQI
21°C14/28°C
30th Jul 2026545 AMAQI
30th Jul 2026486 AMAQI
30th Jul 2026507 AMAQI
30th Jul 2026478 AMAQI
30th Jul 2026519 AMAQI
30th Jul 20265310 AMAQI
30th Jul 20266411 AMAQI
30th Jul 20265412 PMAQI
30th Jul 2026491 PMAQI
30th Jul 2026342 PMAQI
30th Jul 2026253 PMAQI
30th Jul 2026244 PMAQI
30th Jul 2026315 PMAQI
30th Jul 2026376 PMAQI
30th Jul 2026367 PMAQI
30th Jul 2026358 PMAQI
30th Jul 2026449 PMAQI
30th Jul 20265110 PMAQI
30th Jul 20265411 PMAQI
31st Jul 20266012 AMAQI
31st Jul 2026601 AMAQI
31st Jul 2026562 AMAQI
31st Jul 2026533 AMAQI
31st Jul 2026594 AMAQI
25°C18/34°C
31st Jul 2026605 AMAQI
31st Jul 2026626 AMAQI
31st Jul 2026617 AMAQI
31st Jul 2026588 AMAQI
31st Jul 2026619 AMAQI
31st Jul 20266210 AMAQI
31st Jul 20266311 AMAQI
31st Jul 20267812 PMAQI
31st Jul 2026561 PMAQI
31st Jul 2026582 PMAQI
31st Jul 2026433 PMAQI
31st Jul 2026414 PMAQI
31st Jul 2026405 PMAQI
31st Jul 2026306 PMAQI
31st Jul 2026317 PMAQI
31st Jul 2026348 PMAQI
31st Jul 2026369 PMAQI
31st Jul 20264810 PMAQI
31st Jul 20265911 PMAQI
1st Aug 20266412 AMAQI
1st Aug 2026661 AMAQI
1st Aug 2026632 AMAQI
1st Aug 2026623 AMAQI
1st Aug 2026654 AMAQI
27°C20/35°C
1st Aug 2026645 AMAQI
1st Aug 2026726 AMAQI
1st Aug 2026657 AMAQI
1st Aug 2026588 AMAQI
1st Aug 2026609 AMAQI
1st Aug 20265910 AMAQI
1st Aug 20265611 AMAQI
1st Aug 20265412 PMAQI
1st Aug 2026531 PMAQI
1st Aug 2026522 PMAQI
1st Aug 2026493 PMAQI
1st Aug 2026464 PMAQI
1st Aug 2026445 PMAQI
1st Aug 2026466 PMAQI
1st Aug 2026547 PMAQI
1st Aug 2026518 PMAQI
1st Aug 2026489 PMAQI
1st Aug 20265410 PMAQI
1st Aug 20266811 PMAQI
2nd Aug 20268012 AMAQI
2nd Aug 2026771 AMAQI
2nd Aug 2026622 AMAQI
2nd Aug 2026583 AMAQI
2nd Aug 2026414 AMAQI
25°C19/34°C
2nd Aug 2026275 AMAQI
2nd Aug 2026316 AMAQI
2nd Aug 2026387 AMAQI
2nd Aug 2026408 AMAQI
2nd Aug 2026449 AMAQI
2nd Aug 20264910 AMAQI
2nd Aug 20264611 AMAQI
2nd Aug 20264112 PMAQI
2nd Aug 2026331 PMAQI
2nd Aug 2026312 PMAQI
2nd Aug 2026373 PMAQI
2nd Aug 2026384 PMAQI
2nd Aug 2026405 PMAQI
2nd Aug 2026386 PMAQI
2nd Aug 2026407 PMAQI
2nd Aug 2026498 PMAQI
2nd Aug 2026469 PMAQI
2nd Aug 20265210 PMAQI
2nd Aug 20266011 PMAQI
3rd Aug 20265512 AMAQI
3rd Aug 2026541 AMAQI
3rd Aug 2026572 AMAQI
3rd Aug 2026563 AMAQI
3rd Aug 2026554 AMAQI
21°C18/24°C
3rd Aug 2026545 AMAQI
3rd Aug 2026546 AMAQI
3rd Aug 2026477 AMAQI
3rd Aug 2026488 AMAQI
3rd Aug 2026539 AMAQI
3rd Aug 20265810 AMAQI
3rd Aug 20266411 AMAQI
3rd Aug 20267212 PMAQI
3rd Aug 2026811 PMAQI
3rd Aug 2026672 PMAQI
3rd Aug 2026613 PMAQI
3rd Aug 2026564 PMAQI
3rd Aug 2026575 PMAQI
3rd Aug 2026566 PMAQI
3rd Aug 2026547 PMAQI
3rd Aug 2026568 PMAQI
3rd Aug 2026569 PMAQI
3rd Aug 20265610 PMAQI
3rd Aug 20266311 PMAQI
4th Aug 20266212 AMAQI
4th Aug 2026581 AMAQI
4th Aug 2026562 AMAQI
4th Aug 2026573 AMAQI
4th Aug 2026564 AMAQI
25°C17/35°C
4th Aug 2026545 AMAQI
4th Aug 2026526 AMAQI
4th Aug 2026547 AMAQI
4th Aug 2026568 AMAQI
4th Aug 2026609 AMAQI
4th Aug 20266510 AMAQI
4th Aug 20266911 AMAQI
4th Aug 20266312 PMAQI
4th Aug 2026541 PMAQI
4th Aug 2026512 PMAQI
4th Aug 2026503 PMAQI
4th Aug 2026524 PMAQI
4th Aug 2026425 PMAQI
4th Aug 2026366 PMAQI
4th Aug 2026437 PMAQI
4th Aug 2026478 PMAQI
4th Aug 2026489 PMAQI
4th Aug 20264410 PMAQI
4th Aug 20265311 PMAQI
5th Aug 20266212 AMAQI
5th Aug 2026671 AMAQI
5th Aug 2026622 AMAQI
5th Aug 2026603 AMAQI
5th Aug 2026604 AMAQI
28°C21/37°C
5th Aug 2026625 AMAQI
5th Aug 2026666 AMAQI
5th Aug 2026667 AMAQI
5th Aug 2026668 AMAQI
5th Aug 2026669 AMAQI
5th Aug 20266910 AMAQI
5th Aug 20266211 AMAQI
5th Aug 20266212 PMAQI
5th Aug 2026561 PMAQI
5th Aug 2026502 PMAQI
5th Aug 2026403 PMAQI
5th Aug 2026394 PMAQI
5th Aug 2026355 PMAQI
5th Aug 2026326 PMAQI
5th Aug 2026317 PMAQI
5th Aug 2026328 PMAQI
5th Aug 2026449 PMAQI
5th Aug 20265310 PMAQI
5th Aug 20265911 PMAQI
6th Aug 20266812 AMAQI
6th Aug 2026691 AMAQI
6th Aug 2026712 AMAQI
6th Aug 2026713 AMAQI
6th Aug 2026634 AMAQI
30°C23/38°C
6th Aug 2026545 AMAQI
6th Aug 2026576 AMAQI
6th Aug 2026637 AMAQI
6th Aug 2026678 AMAQI
6th Aug 2026669 AMAQI
6th Aug 20266510 AMAQI
6th Aug 20266311 AMAQI
6th Aug 20266412 PMAQI
6th Aug 2026601 PMAQI
6th Aug 2026532 PMAQI
6th Aug 2026473 PMAQI
6th Aug 2026454 PMAQI
6th Aug 2026425 PMAQI
6th Aug 2026396 PMAQI
6th Aug 2026367 PMAQI
6th Aug 2026418 PMAQI
6th Aug 2026469 PMAQI
6th Aug 20264610 PMAQI
6th Aug 20264911 PMAQI
7th Aug 20264612 AMAQI
7th Aug 2026421 AMAQI
7th Aug 2026422 AMAQI
7th Aug 2026433 AMAQI
7th Aug 2026464 AMAQI
26°C21/35°C
7th Aug 2026565 AMAQI
5 AM7th Aug 2026686 AMAQI
7th Aug 2026517 AMAQI
7th Aug 2026438 AMAQI
7th Aug 2026419 AMAQI
7th Aug 20264010 AMAQI
7th Aug 20263911 AMAQI
7th Aug 20263412 PMAQI
12 PM7th Aug 2026281 PMAQI
7th Aug 2026272 PMAQI
7th Aug 2026243 PMAQI
7th Aug 2026314 PMAQI
7th Aug 2026365 PMAQI
7th Aug 2026356 PMAQI
7th Aug 2026387 PMAQI
7th Aug 2026438 PMAQI
8 PM7th Aug 2026469 PMAQI
7th Aug 20264610 PMAQI
7th Aug 20264611 PMAQI
12 AM
4 AM
21°C17/25°C
Day time
Avg. Highest Time
10 AM - 11 AM
47AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
6 PM - 8 PM
36AQI
3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 10 AM to 11 AM (Avg. 47), while the lowest AQI was between 6 PM to 8 PM (Avg. 36).
Night time
Avg. Highest Time
12 AM - 3 AM
46AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
9 PM
39AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 3 AM (Avg. 46), while the lowest AQI was between 9 PM to 9 PM (Avg. 39).
2026 Days Vs Air Quality
Ostrava, Moravskoslezsky Kraj, Czechia
2026
58%
125
31%
67
8%
18
3%
6
Total number of days with different AQI categories in last 219 days in 2026 (146 days remaining)
Good
125 DaysModerate
67 DaysPoor
18 DaysUnhealthy
6 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 58%
Health Risk Level:
Considerable
In 2026, 58% of 219 days were within WHO’s safe air quality limits, and 42% exceeded them. The risk of health issues is Considerable, with potential for conditions in sensitive individuals.
Annual Air Quality Insights
Ostrava, Moravskoslezsky Kraj, Czechia
AQI levels in 2026
AQI (US)
PM₂.₅
PM₁₀
CO
SO₂
NO₂
O₃
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
1st January 2026
36AQI (US)
36AQI (US)
2nd January 2026
22AQI (US)
22AQI (US)
3rd January 2026
26AQI (US)
26AQI (US)
4th January 2026
32AQI (US)
32AQI (US)
5th January 2026
62AQI (US)
62AQI (US)
6th January 2026
96AQI (US)
96AQI (US)
7th January 2026
134AQI (US)
134AQI (US)
8th January 2026
122AQI (US)
122AQI (US)
9th January 2026
126AQI (US)
126AQI (US)
10th January 2026
138AQI (US)
138AQI (US)
11th January 2026
56AQI (US)
56AQI (US)
12th January 2026
46AQI (US)
46AQI (US)
13th January 2026
52AQI (US)
52AQI (US)
14th January 2026
72AQI (US)
72AQI (US)
15th January 2026
90AQI (US)
90AQI (US)
16th January 2026
100AQI (US)
100AQI (US)
17th January 2026
92AQI (US)
92AQI (US)
18th January 2026
120AQI (US)
120AQI (US)
19th January 2026
132AQI (US)
132AQI (US)
20th January 2026
55AQI (US)
55AQI (US)
21st January 2026
47AQI (US)
47AQI (US)
22nd January 2026
138AQI (US)
138AQI (US)
23rd January 2026
172AQI (US)
172AQI (US)
24th January 2026
168AQI (US)
168AQI (US)
25th January 2026
152AQI (US)
152AQI (US)
26th January 2026
101AQI (US)
101AQI (US)
27th January 2026
66AQI (US)
66AQI (US)
28th January 2026
137AQI (US)
137AQI (US)
29th January 2026
103AQI (US)
103AQI (US)
30th January 2026
60AQI (US)
60AQI (US)
31st January 2026
84AQI (US)
84AQI (US)
1st February 2026
83AQI (US)
83AQI (US)
2nd February 2026
108AQI (US)
108AQI (US)
3rd February 2026
130AQI (US)
130AQI (US)
4th February 2026
156AQI (US)
156AQI (US)
5th February 2026
154AQI (US)
154AQI (US)
6th February 2026
151AQI (US)
151AQI (US)
7th February 2026
150AQI (US)
150AQI (US)
8th February 2026
95AQI (US)
95AQI (US)
9th February 2026
86AQI (US)
86AQI (US)
10th February 2026
89AQI (US)
89AQI (US)
11th February 2026
31AQI (US)
31AQI (US)
12th February 2026
26AQI (US)
26AQI (US)
13th February 2026
22AQI (US)
22AQI (US)
14th February 2026
60AQI (US)
60AQI (US)
15th February 2026
48AQI (US)
48AQI (US)
16th February 2026
85AQI (US)
85AQI (US)
17th February 2026
60AQI (US)
60AQI (US)
18th February 2026
60AQI (US)
60AQI (US)
19th February 2026
122AQI (US)
122AQI (US)
20th February 2026
94AQI (US)
94AQI (US)
21st February 2026
83AQI (US)
83AQI (US)
22nd February 2026
61AQI (US)
61AQI (US)
23rd February 2026
23AQI (US)
23AQI (US)
24th February 2026
22AQI (US)
22AQI (US)
25th February 2026
36AQI (US)
36AQI (US)
26th February 2026
62AQI (US)
62AQI (US)
27th February 2026
49AQI (US)
49AQI (US)
28th February 2026
56AQI (US)
56AQI (US)
1st March 2026
57AQI (US)
57AQI (US)
2nd March 2026
52AQI (US)
52AQI (US)
3rd March 2026
84AQI (US)
84AQI (US)
4th March 2026
97AQI (US)
97AQI (US)
5th March 2026
71AQI (US)
71AQI (US)
6th March 2026
99AQI (US)
99AQI (US)
7th March 2026
101AQI (US)
101AQI (US)
8th March 2026
121AQI (US)
121AQI (US)
9th March 2026
98AQI (US)
98AQI (US)
10th March 2026
69AQI (US)
69AQI (US)
11th March 2026
62AQI (US)
62AQI (US)
12th March 2026
69AQI (US)
69AQI (US)
13th March 2026
63AQI (US)
63AQI (US)
14th March 2026
36AQI (US)
36AQI (US)
15th March 2026
54AQI (US)
54AQI (US)
16th March 2026
52AQI (US)
52AQI (US)
17th March 2026
44AQI (US)
44AQI (US)
18th March 2026
75AQI (US)
75AQI (US)
19th March 2026
98AQI (US)
98AQI (US)
20th March 2026
107AQI (US)
107AQI (US)
21st March 2026
66AQI (US)
66AQI (US)
22nd March 2026
73AQI (US)
73AQI (US)
23rd March 2026
83AQI (US)
83AQI (US)
24th March 2026
77AQI (US)
77AQI (US)
25th March 2026
72AQI (US)
72AQI (US)
26th March 2026
29AQI (US)
29AQI (US)
27th March 2026
32AQI (US)
32AQI (US)
28th March 2026
40AQI (US)
40AQI (US)
29th March 2026
40AQI (US)
40AQI (US)
30th March 2026
26AQI (US)
26AQI (US)
31st March 2026
33AQI (US)
33AQI (US)
1st April 2026
36AQI (US)
36AQI (US)
2nd April 2026
52AQI (US)
52AQI (US)
3rd April 2026
53AQI (US)
53AQI (US)
4th April 2026
52AQI (US)
52AQI (US)
5th April 2026
26AQI (US)
26AQI (US)
6th April 2026
18AQI (US)
18AQI (US)
7th April 2026
26AQI (US)
26AQI (US)
8th April 2026
27AQI (US)
27AQI (US)
9th April 2026
44AQI (US)
44AQI (US)
10th April 2026
72AQI (US)
72AQI (US)
11th April 2026
75AQI (US)
75AQI (US)
12th April 2026
104AQI (US)
104AQI (US)
13th April 2026
60AQI (US)
60AQI (US)
14th April 2026
62AQI (US)
62AQI (US)
15th April 2026
82AQI (US)
82AQI (US)
16th April 2026
87AQI (US)
87AQI (US)
17th April 2026
18th April 2026
45AQI (US)
45AQI (US)
19th April 2026
49AQI (US)
49AQI (US)
20th April 2026
21AQI (US)
21AQI (US)
21st April 2026
46AQI (US)
46AQI (US)
22nd April 2026
23rd April 2026
36AQI (US)
36AQI (US)
24th April 2026
34AQI (US)
34AQI (US)
25th April 2026
37AQI (US)
37AQI (US)
26th April 2026
29AQI (US)
29AQI (US)
27th April 2026
29AQI (US)
29AQI (US)
28th April 2026
46AQI (US)
46AQI (US)
29th April 2026
46AQI (US)
46AQI (US)
30th April 2026
41AQI (US)
41AQI (US)
1st May 2026
38AQI (US)
38AQI (US)
2nd May 2026
40AQI (US)
40AQI (US)
3rd May 2026
39AQI (US)
39AQI (US)
4th May 2026
27AQI (US)
27AQI (US)
5th May 2026
39AQI (US)
39AQI (US)
6th May 2026
32AQI (US)
32AQI (US)
7th May 2026
28AQI (US)
28AQI (US)
8th May 2026
47AQI (US)
47AQI (US)
9th May 2026
10th May 2026
50AQI (US)
50AQI (US)
11th May 2026
28AQI (US)
28AQI (US)
12th May 2026
19AQI (US)
19AQI (US)
13th May 2026
22AQI (US)
22AQI (US)
14th May 2026
25AQI (US)
25AQI (US)
15th May 2026
28AQI (US)
28AQI (US)
16th May 2026
38AQI (US)
38AQI (US)
17th May 2026
46AQI (US)
46AQI (US)
18th May 2026
31AQI (US)
31AQI (US)
19th May 2026
33AQI (US)
33AQI (US)
20th May 2026
36AQI (US)
36AQI (US)
21st May 2026
50AQI (US)
50AQI (US)
22nd May 2026
40AQI (US)
40AQI (US)
23rd May 2026
35AQI (US)
35AQI (US)
24th May 2026
46AQI (US)
46AQI (US)
25th May 2026
48AQI (US)
48AQI (US)
26th May 2026
43AQI (US)
43AQI (US)
27th May 2026
42AQI (US)
42AQI (US)
28th May 2026
27AQI (US)
27AQI (US)
29th May 2026
28AQI (US)
28AQI (US)
30th May 2026
28AQI (US)
28AQI (US)
31st May 2026
28AQI (US)
28AQI (US)
1st June 2026
37AQI (US)
37AQI (US)
2nd June 2026
40AQI (US)
40AQI (US)
3rd June 2026
38AQI (US)
38AQI (US)
4th June 2026
16AQI (US)
16AQI (US)
5th June 2026
25AQI (US)
25AQI (US)
6th June 2026
22AQI (US)
22AQI (US)
7th June 2026
32AQI (US)
32AQI (US)
8th June 2026
20AQI (US)
20AQI (US)
9th June 2026
28AQI (US)
28AQI (US)
10th June 2026
26AQI (US)
26AQI (US)
11th June 2026
15AQI (US)
15AQI (US)
12th June 2026
23AQI (US)
23AQI (US)
13th June 2026
19AQI (US)
19AQI (US)
14th June 2026
20AQI (US)
20AQI (US)
15th June 2026
20AQI (US)
20AQI (US)
16th June 2026
23AQI (US)
23AQI (US)
17th June 2026
28AQI (US)
28AQI (US)
18th June 2026
40AQI (US)
40AQI (US)
19th June 2026
40AQI (US)
40AQI (US)
20th June 2026
42AQI (US)
42AQI (US)
21st June 2026
39AQI (US)
39AQI (US)
22nd June 2026
32AQI (US)
32AQI (US)
23rd June 2026
24AQI (US)
24AQI (US)
24th June 2026
27AQI (US)
27AQI (US)
25th June 2026
34AQI (US)
34AQI (US)
26th June 2026
51AQI (US)
51AQI (US)
27th June 2026
52AQI (US)
52AQI (US)
28th June 2026
61AQI (US)
61AQI (US)
29th June 2026
61AQI (US)
61AQI (US)
30th June 2026
53AQI (US)
53AQI (US)
1st July 2026
56AQI (US)
56AQI (US)
2nd July 2026
20AQI (US)
20AQI (US)
3rd July 2026
27AQI (US)
27AQI (US)
4th July 2026
21AQI (US)
21AQI (US)
5th July 2026
21AQI (US)
21AQI (US)
6th July 2026
23AQI (US)
23AQI (US)
7th July 2026
22AQI (US)
22AQI (US)
8th July 2026
22AQI (US)
22AQI (US)
9th July 2026
22AQI (US)
22AQI (US)
10th July 2026
28AQI (US)
28AQI (US)
11th July 2026
27AQI (US)
27AQI (US)
12th July 2026
25AQI (US)
25AQI (US)
13th July 2026
28AQI (US)
28AQI (US)
14th July 2026
43AQI (US)
43AQI (US)
15th July 2026
42AQI (US)
42AQI (US)
16th July 2026
58AQI (US)
58AQI (US)
17th July 2026
48AQI (US)
48AQI (US)
18th July 2026
36AQI (US)
36AQI (US)
19th July 2026
48AQI (US)
48AQI (US)
20th July 2026
34AQI (US)
34AQI (US)
21st July 2026
38AQI (US)
38AQI (US)
22nd July 2026
29AQI (US)
29AQI (US)
23rd July 2026
41AQI (US)
41AQI (US)
24th July 2026
35AQI (US)
35AQI (US)
25th July 2026
38AQI (US)
38AQI (US)
26th July 2026
44AQI (US)
44AQI (US)
27th July 2026
44AQI (US)
44AQI (US)
28th July 2026
31AQI (US)
31AQI (US)
29th July 2026
42AQI (US)
42AQI (US)
30th July 2026
46AQI (US)
46AQI (US)
31st July 2026
53AQI (US)
53AQI (US)
1st August 2026
57AQI (US)
57AQI (US)
2nd August 2026
46AQI (US)
46AQI (US)
3rd August 2026
58AQI (US)
58AQI (US)
4th August 2026
53AQI (US)
53AQI (US)
5th August 2026
54AQI (US)
54AQI (US)
6th August 2026
56AQI (US)
56AQI (US)
7th August 2026
41AQI (US)
41AQI (US)
8th August 2026
9th August 2026
10th August 2026
11th August 2026
12th August 2026
13th August 2026
14th August 2026
15th August 2026
16th August 2026
17th August 2026
18th August 2026
19th August 2026
20th August 2026
21st August 2026
22nd August 2026
23rd August 2026
24th August 2026
25th August 2026
26th August 2026
27th August 2026
28th August 2026
29th August 2026
30th August 2026
31st August 2026
1st September 2026
2nd September 2026
3rd September 2026
4th September 2026
5th September 2026
6th September 2026
7th September 2026
8th September 2026
9th September 2026
10th September 2026
11th September 2026
12th September 2026
13th September 2026
14th September 2026
15th September 2026
16th September 2026
17th September 2026
18th September 2026
19th September 2026
20th September 2026
21st September 2026
22nd September 2026
23rd September 2026
24th September 2026
25th September 2026
26th September 2026
27th September 2026
28th September 2026
29th September 2026
30th September 2026
1st October 2026
2nd October 2026
3rd October 2026
4th October 2026
5th October 2026
6th October 2026
7th October 2026
8th October 2026
9th October 2026
10th October 2026
11th October 2026
12th October 2026
13th October 2026
14th October 2026
15th October 2026
16th October 2026
17th October 2026
18th October 2026
19th October 2026
20th October 2026
21st October 2026
22nd October 2026
23rd October 2026
24th October 2026
25th October 2026
26th October 2026
27th October 2026
28th October 2026
29th October 2026
30th October 2026
31st October 2026
1st November 2026
2nd November 2026
3rd November 2026
4th November 2026
5th November 2026
6th November 2026
7th November 2026
8th November 2026
9th November 2026
10th November 2026
11th November 2026
12th November 2026
13th November 2026
14th November 2026
15th November 2026
16th November 2026
17th November 2026
18th November 2026
19th November 2026
20th November 2026
21st November 2026
22nd November 2026
23rd November 2026
24th November 2026
25th November 2026
26th November 2026
27th November 2026
28th November 2026
29th November 2026
30th November 2026
1st December 2026
2nd December 2026
3rd December 2026
4th December 2026
5th December 2026
6th December 2026
7th December 2026
8th December 2026
9th December 2026
10th December 2026
11th December 2026
12th December 2026
13th December 2026
14th December 2026
15th December 2026
16th December 2026
17th December 2026
18th December 2026
19th December 2026
20th December 2026
21st December 2026
22nd December 2026
23rd December 2026
24th December 2026
25th December 2026
26th December 2026
27th December 2026
28th December 2026
29th December 2026
30th December 2026
31st December 2026
92AQI (US)
79AQI (US)
67AQI (US)
48AQI (US)
35AQI (US)
33AQI (US)
35AQI (US)
52AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202655AQI (US)
6
12
10
3
8
13
4
3
8
20
3
18
9
1
30
25
5
28
3
2
5
125
67
18
6
Highest AQI (US) recorded in
January92AQI (US)
Lowest AQI (US) recorded in
June33AQI (US)
202555AQI (US)
9
21
1
9
16
3
2
25
4
20
10
31
29
1
30
1
26
5
26
4
12
19
3
26
1
6
20
4
1
194
141
26
4
Highest AQI (US) recorded in
February112AQI (US)
Lowest AQI (US) recorded in
May31AQI (US)
202456AQI (US)
12
14
3
2
18
9
2
10
18
3
18
11
1
28
3
20
10
22
9
18
13
13
17
12
18
1
10
16
4
9
15
4
3
190
153
18
5
Highest AQI (US) recorded in
December78AQI (US)
Lowest AQI (US) recorded in
July43AQI (US)
202355AQI (US)
11
17
3
11
12
4
1
15
13
3
12
18
12
19
20
10
23
8
19
12
15
15
21
9
1
23
5
1
11
13
4
3
193
151
16
4
Highest AQI (US) recorded in
February69AQI (US)
Lowest AQI (US) recorded in
November44AQI (US)
202266AQI (US)
13
12
5
11
9
1
11
20
10
20
10
21
12
18
15
9
2
18
10
11
18
2
3
17
10
5
17
5
4
110
162
43
4
Highest AQI (US) recorded in
March105AQI (US)
Lowest AQI (US) recorded in
August36AQI (US)
202159AQI (US)
1
1
1
6
20
5
13
16
1
25
6
6
24
14
17
25
6
14
16
8
21
2
11
13
6
11
10
7
3
134
150
22
3
Highest AQI (US) recorded in
December82AQI (US)
Lowest AQI (US) recorded in
August40AQI (US)
202056AQI (US)
1
7
5
2
9
11
7
17
13
22
9
16
15
14
16
16
13
4
22
4
1
1
103
112
9
1
Highest AQI (US) recorded in
December122AQI (US)
Lowest AQI (US) recorded in
July45AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Most Polluted Year Recorded
2022(Avg.)
66AQI (US)Least Polluted Year Recorded
2023(Avg.)
55AQI (US)Ostrava's annual 2026 AQI (US) (55) shows an average percentage change of -4.5% (improved AQI (US)) compared to previous years: 2020 (56), 2021 (59), 2022 (66), 2023 (55), 2024 (56), 2025 (55).
