Country Background
HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Cluj Napoca, Cluj, Romania 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

Cluj Napoca, Cluj, Romania

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
22nd Aug 2023
67AQI
Lowest AQI recorded on
1st Aug 2022
8AQI

Same Day Analysis (11th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 1st highest AQI at 44 of Good air quality on the same day.

Day & Night AQI Trend: 11th Aug - 12th Aug 2026

Cluj Napoca, Cluj, Romania

AQI
Day
Night
.

6 AM11th Aug 2026

9 PM

5 AM12th Aug 2026

Day time
Avg. Highest Time
1PM11th Aug

57AQI

Avg. Lowest Time
7PM11th Aug

24AQI

Night time
Avg. Highest Time
11PM11th Aug

61AQI

Avg. Lowest Time
4AM12th Aug

46AQI

In the last 24 hours,

Cluj Napoca's AQI reached its highest point of 61 at 11 PM during the Night, while the lowest point, 24, was recorded at 7 PM during the Day between 11th Aug and 12th Aug 2026.

Day & Night AQI Trend : Jul - Aug 2026

Cluj Napoca, Cluj, Romania

JulAug
14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th
Day
Night
14th Jul 2026216 AMAQI
14th Jul 2026257 AMAQI
14th Jul 2026318 AMAQI
14th Jul 2026539 AMAQI
14th Jul 20265910 AMAQI
14th Jul 20266011 AMAQI
14th Jul 20266112 PMAQI
14th Jul 2026601 PMAQI
14th Jul 2026552 PMAQI
14th Jul 2026403 PMAQI
14th Jul 2026384 PMAQI
14th Jul 2026445 PMAQI
14th Jul 2026426 PMAQI
14th Jul 2026637 PMAQI
14th Jul 2026478 PMAQI
14th Jul 2026259 PMAQI
14th Jul 20262610 PMAQI
14th Jul 20264011 PMAQI
15th Jul 20265512 AMAQI
15th Jul 2026681 AMAQI
15th Jul 2026552 AMAQI
15th Jul 2026643 AMAQI
15th Jul 2026624 AMAQI
15th Jul 2026625 AMAQI

21°C14/27°C

15th Jul 2026656 AMAQI
15th Jul 2026567 AMAQI
15th Jul 2026648 AMAQI
15th Jul 2026629 AMAQI
15th Jul 20266110 AMAQI
15th Jul 20265911 AMAQI
15th Jul 20265612 PMAQI
15th Jul 2026471 PMAQI
15th Jul 2026702 PMAQI
15th Jul 2026423 PMAQI
15th Jul 2026374 PMAQI
15th Jul 2026385 PMAQI
15th Jul 2026506 PMAQI
15th Jul 2026597 PMAQI
15th Jul 2026698 PMAQI
15th Jul 2026279 PMAQI
15th Jul 20265310 PMAQI
15th Jul 20264611 PMAQI
16th Jul 20265112 AMAQI
16th Jul 2026561 AMAQI
16th Jul 2026462 AMAQI
16th Jul 2026583 AMAQI
16th Jul 2026434 AMAQI
16th Jul 2026405 AMAQI

21°C15/30°C

16th Jul 2026336 AMAQI
16th Jul 2026337 AMAQI
16th Jul 2026348 AMAQI
16th Jul 2026309 AMAQI
16th Jul 20264110 AMAQI
16th Jul 20264511 AMAQI
16th Jul 20264712 PMAQI
16th Jul 2026471 PMAQI
16th Jul 2026192 PMAQI
16th Jul 2026273 PMAQI
16th Jul 2026244 PMAQI
16th Jul 2026265 PMAQI
16th Jul 2026246 PMAQI
16th Jul 2026307 PMAQI
16th Jul 2026268 PMAQI
16th Jul 2026169 PMAQI
16th Jul 20261610 PMAQI
16th Jul 20263711 PMAQI
17th Jul 20262312 AMAQI
17th Jul 2026301 AMAQI
17th Jul 2026382 AMAQI
17th Jul 2026463 AMAQI
17th Jul 2026354 AMAQI
17th Jul 2026485 AMAQI

22°C15/29°C

17th Jul 2026476 AMAQI
17th Jul 2026557 AMAQI
17th Jul 2026628 AMAQI
17th Jul 2026589 AMAQI
17th Jul 20265410 AMAQI
17th Jul 20265411 AMAQI
17th Jul 20265512 PMAQI
17th Jul 2026501 PMAQI
17th Jul 2026492 PMAQI
17th Jul 2026463 PMAQI
17th Jul 2026294 PMAQI
17th Jul 2026365 PMAQI
17th Jul 2026316 PMAQI
17th Jul 2026277 PMAQI
17th Jul 2026338 PMAQI
17th Jul 2026329 PMAQI
17th Jul 20265710 PMAQI
17th Jul 20265211 PMAQI
18th Jul 20265912 AMAQI
18th Jul 2026561 AMAQI
18th Jul 2026582 AMAQI
18th Jul 2026563 AMAQI
18th Jul 2026554 AMAQI
18th Jul 2026555 AMAQI

23°C16/30°C

18th Jul 2026556 AMAQI
18th Jul 2026587 AMAQI
18th Jul 2026578 AMAQI
18th Jul 2026649 AMAQI
18th Jul 20265810 AMAQI
18th Jul 20265911 AMAQI
18th Jul 20265512 PMAQI
18th Jul 2026521 PMAQI
18th Jul 2026532 PMAQI
18th Jul 2026503 PMAQI
18th Jul 2026524 PMAQI
18th Jul 2026455 PMAQI
18th Jul 2026486 PMAQI
18th Jul 2026487 PMAQI
18th Jul 2026518 PMAQI
18th Jul 2026569 PMAQI
18th Jul 20265810 PMAQI
18th Jul 20266011 PMAQI
19th Jul 20266012 AMAQI
19th Jul 2026591 AMAQI
19th Jul 2026612 AMAQI
19th Jul 2026633 AMAQI
19th Jul 2026624 AMAQI
19th Jul 2026645 AMAQI

23°C17/30°C

19th Jul 2026636 AMAQI
19th Jul 2026627 AMAQI
19th Jul 2026618 AMAQI
19th Jul 2026569 AMAQI
19th Jul 20265010 AMAQI
19th Jul 20264911 AMAQI
19th Jul 20265512 PMAQI
19th Jul 2026481 PMAQI
19th Jul 2026432 PMAQI
19th Jul 2026343 PMAQI
19th Jul 2026284 PMAQI
19th Jul 2026245 PMAQI
19th Jul 2026276 PMAQI
19th Jul 2026257 PMAQI
19th Jul 2026268 PMAQI
19th Jul 2026439 PMAQI
19th Jul 20264310 PMAQI
19th Jul 20264911 PMAQI
20th Jul 20264612 AMAQI
20th Jul 2026431 AMAQI
20th Jul 2026472 AMAQI
20th Jul 2026523 AMAQI
20th Jul 2026474 AMAQI
20th Jul 2026475 AMAQI

24°C18/31°C

20th Jul 2026526 AMAQI
20th Jul 2026517 AMAQI
20th Jul 2026568 AMAQI
20th Jul 2026649 AMAQI
20th Jul 20265510 AMAQI
20th Jul 20265911 AMAQI
20th Jul 20264612 PMAQI
20th Jul 2026411 PMAQI
20th Jul 2026412 PMAQI
20th Jul 2026303 PMAQI
20th Jul 2026264 PMAQI
20th Jul 2026225 PMAQI
20th Jul 2026236 PMAQI
20th Jul 2026227 PMAQI
20th Jul 2026228 PMAQI
20th Jul 2026429 PMAQI
20th Jul 20262310 PMAQI
20th Jul 20263311 PMAQI
21st Jul 20262412 AMAQI
21st Jul 2026221 AMAQI
21st Jul 2026242 AMAQI
21st Jul 2026273 AMAQI
21st Jul 2026294 AMAQI
21st Jul 2026335 AMAQI

22°C16/29°C

21st Jul 2026197 AMAQI
21st Jul 2026238 AMAQI
21st Jul 2026229 AMAQI
21st Jul 20262110 AMAQI
21st Jul 20262211 AMAQI
21st Jul 20262812 PMAQI
21st Jul 2026381 PMAQI
21st Jul 2026302 PMAQI
21st Jul 2026273 PMAQI
21st Jul 2026244 PMAQI
21st Jul 2026255 PMAQI
21st Jul 2026226 PMAQI
21st Jul 2026237 PMAQI
21st Jul 2026258 PMAQI
21st Jul 2026379 PMAQI
21st Jul 20262910 PMAQI
21st Jul 20263611 PMAQI
22nd Jul 20264512 AMAQI
22nd Jul 2026241 AMAQI
22nd Jul 2026302 AMAQI
22nd Jul 2026423 AMAQI
22nd Jul 2026324 AMAQI
22nd Jul 2026235 AMAQI

21°C14/28°C

22nd Jul 2026386 AMAQI
22nd Jul 2026287 AMAQI
22nd Jul 2026288 AMAQI
22nd Jul 2026249 AMAQI
22nd Jul 20262110 AMAQI
22nd Jul 20262611 AMAQI
22nd Jul 20262912 PMAQI
22nd Jul 2026341 PMAQI
22nd Jul 2026362 PMAQI
22nd Jul 2026243 PMAQI
22nd Jul 2026224 PMAQI
22nd Jul 2026235 PMAQI
22nd Jul 2026436 PMAQI
22nd Jul 2026537 PMAQI
22nd Jul 2026238 PMAQI
22nd Jul 2026239 PMAQI
22nd Jul 20263210 PMAQI
22nd Jul 20263311 PMAQI
23rd Jul 20262912 AMAQI
23rd Jul 2026241 AMAQI
23rd Jul 2026292 AMAQI
23rd Jul 2026293 AMAQI
23rd Jul 2026294 AMAQI
23rd Jul 2026295 AMAQI

17°C13/23°C

23rd Jul 2026276 AMAQI
23rd Jul 2026277 AMAQI
23rd Jul 2026238 AMAQI
23rd Jul 2026289 AMAQI
23rd Jul 20263110 AMAQI
23rd Jul 20264111 AMAQI
23rd Jul 20262912 PMAQI
23rd Jul 2026261 PMAQI
23rd Jul 2026302 PMAQI
23rd Jul 2026293 PMAQI
23rd Jul 2026294 PMAQI
23rd Jul 2026615 PMAQI
23rd Jul 2026296 PMAQI
23rd Jul 2026297 PMAQI
23rd Jul 2026308 PMAQI
23rd Jul 2026379 PMAQI
23rd Jul 20262310 PMAQI
23rd Jul 20264411 PMAQI
24th Jul 20264012 AMAQI
24th Jul 2026351 AMAQI
24th Jul 2026242 AMAQI
24th Jul 2026293 AMAQI
24th Jul 2026294 AMAQI
24th Jul 2026295 AMAQI

18°C10/25°C

24th Jul 2026276 AMAQI
24th Jul 2026267 AMAQI
24th Jul 2026268 AMAQI
24th Jul 2026269 AMAQI
24th Jul 20262510 AMAQI
24th Jul 20262511 AMAQI
24th Jul 20262512 PMAQI
24th Jul 2026281 PMAQI
24th Jul 2026252 PMAQI
24th Jul 2026243 PMAQI
24th Jul 2026254 PMAQI
24th Jul 2026255 PMAQI
24th Jul 2026256 PMAQI
24th Jul 2026247 PMAQI
24th Jul 2026258 PMAQI
24th Jul 2026269 PMAQI
24th Jul 20264010 PMAQI
24th Jul 20265511 PMAQI
25th Jul 20265412 AMAQI
25th Jul 2026541 AMAQI
25th Jul 2026342 AMAQI
25th Jul 2026333 AMAQI
25th Jul 2026304 AMAQI
25th Jul 2026345 AMAQI

16°C10/20°C

25th Jul 2026236 AMAQI
25th Jul 2026217 AMAQI
25th Jul 2026248 AMAQI
25th Jul 2026219 AMAQI
25th Jul 20262010 AMAQI
25th Jul 20261911 AMAQI
25th Jul 20261212 PMAQI
25th Jul 2026201 PMAQI
25th Jul 2026202 PMAQI
25th Jul 2026163 PMAQI
25th Jul 2026104 PMAQI
25th Jul 202695 PMAQI
25th Jul 2026146 PMAQI
25th Jul 2026217 PMAQI
25th Jul 2026218 PMAQI
25th Jul 2026239 PMAQI
25th Jul 20262610 PMAQI
25th Jul 20263811 PMAQI
26th Jul 20264112 AMAQI
26th Jul 2026311 AMAQI
26th Jul 2026262 AMAQI
26th Jul 2026253 AMAQI
26th Jul 2026244 AMAQI
26th Jul 2026255 AMAQI

16°C8/24°C

26th Jul 2026336 AMAQI
26th Jul 2026257 AMAQI
26th Jul 2026378 AMAQI
26th Jul 2026299 AMAQI
26th Jul 20262510 AMAQI
26th Jul 20263011 AMAQI
26th Jul 20262112 PMAQI
26th Jul 2026251 PMAQI
26th Jul 2026232 PMAQI
26th Jul 2026273 PMAQI
26th Jul 2026224 PMAQI
26th Jul 2026245 PMAQI
26th Jul 2026236 PMAQI
26th Jul 2026257 PMAQI
26th Jul 2026278 PMAQI
26th Jul 2026339 PMAQI
26th Jul 20263310 PMAQI
26th Jul 20263111 PMAQI
27th Jul 20262812 AMAQI
27th Jul 2026551 AMAQI
27th Jul 2026242 AMAQI
27th Jul 2026513 AMAQI
27th Jul 2026244 AMAQI
27th Jul 2026255 AMAQI

20°C11/29°C

27th Jul 2026256 AMAQI
27th Jul 2026297 AMAQI
27th Jul 2026338 AMAQI
27th Jul 2026339 AMAQI
27th Jul 20264610 AMAQI
27th Jul 20265611 AMAQI
27th Jul 20265212 PMAQI
27th Jul 2026511 PMAQI
27th Jul 2026392 PMAQI
27th Jul 2026453 PMAQI
27th Jul 2026464 PMAQI
27th Jul 2026315 PMAQI
27th Jul 2026296 PMAQI
27th Jul 2026447 PMAQI
27th Jul 2026318 PMAQI
27th Jul 2026489 PMAQI
27th Jul 20265510 PMAQI
27th Jul 20265811 PMAQI
28th Jul 20265112 AMAQI
28th Jul 2026541 AMAQI
28th Jul 2026452 AMAQI
28th Jul 2026333 AMAQI
28th Jul 2026284 AMAQI
28th Jul 2026235 AMAQI

21°C16/28°C

28th Jul 2026396 AMAQI
28th Jul 2026327 AMAQI
28th Jul 2026338 AMAQI
28th Jul 2026349 AMAQI
28th Jul 20262810 AMAQI
28th Jul 20263711 AMAQI
28th Jul 20262912 PMAQI
28th Jul 2026331 PMAQI
28th Jul 2026302 PMAQI
28th Jul 2026253 PMAQI
28th Jul 2026314 PMAQI
28th Jul 2026295 PMAQI
28th Jul 2026296 PMAQI
28th Jul 2026327 PMAQI
28th Jul 2026298 PMAQI
28th Jul 2026299 PMAQI
28th Jul 20263110 PMAQI
28th Jul 20264311 PMAQI
29th Jul 20262412 AMAQI
29th Jul 2026221 AMAQI
29th Jul 2026292 AMAQI
29th Jul 2026413 AMAQI
29th Jul 2026374 AMAQI
29th Jul 2026325 AMAQI

20°C13/26°C

29th Jul 2026296 AMAQI
29th Jul 2026227 AMAQI
29th Jul 2026228 AMAQI
29th Jul 2026289 AMAQI
29th Jul 20262810 AMAQI
29th Jul 20262611 AMAQI
29th Jul 20263212 PMAQI
29th Jul 2026521 PMAQI
29th Jul 2026252 PMAQI
29th Jul 2026423 PMAQI
29th Jul 2026314 PMAQI
29th Jul 2026225 PMAQI
29th Jul 2026476 PMAQI
29th Jul 2026147 PMAQI
29th Jul 2026318 PMAQI
29th Jul 2026269 PMAQI
29th Jul 20262410 PMAQI
29th Jul 20263811 PMAQI
30th Jul 20265412 AMAQI
30th Jul 2026261 AMAQI
30th Jul 2026262 AMAQI
30th Jul 2026273 AMAQI
30th Jul 2026364 AMAQI
30th Jul 2026255 AMAQI

21°C13/29°C

30th Jul 2026246 AMAQI
30th Jul 2026457 AMAQI
30th Jul 2026338 AMAQI
30th Jul 2026359 AMAQI
30th Jul 20263610 AMAQI
30th Jul 20262511 AMAQI
30th Jul 20262712 PMAQI
30th Jul 2026271 PMAQI
30th Jul 2026262 PMAQI
30th Jul 2026253 PMAQI
30th Jul 2026234 PMAQI
30th Jul 2026255 PMAQI
30th Jul 2026256 PMAQI
30th Jul 2026257 PMAQI
30th Jul 2026358 PMAQI
30th Jul 2026319 PMAQI
30th Jul 20262510 PMAQI
30th Jul 20263311 PMAQI
31st Jul 20262312 AMAQI
31st Jul 2026261 AMAQI
31st Jul 2026332 AMAQI
31st Jul 2026253 AMAQI
31st Jul 2026264 AMAQI
31st Jul 2026225 AMAQI

22°C14/31°C

31st Jul 2026256 AMAQI
31st Jul 2026267 AMAQI
31st Jul 2026348 AMAQI
31st Jul 2026439 AMAQI
31st Jul 20265210 AMAQI
31st Jul 20265011 AMAQI
31st Jul 20263812 PMAQI
31st Jul 2026231 PMAQI
31st Jul 2026292 PMAQI
31st Jul 2026333 PMAQI
31st Jul 2026294 PMAQI
31st Jul 2026245 PMAQI
31st Jul 2026416 PMAQI
31st Jul 2026217 PMAQI
31st Jul 2026248 PMAQI
31st Jul 2026279 PMAQI
31st Jul 20264910 PMAQI
31st Jul 20265311 PMAQI
1st Aug 20265812 AMAQI
1st Aug 2026551 AMAQI
1st Aug 2026522 AMAQI
1st Aug 2026553 AMAQI
1st Aug 2026544 AMAQI
1st Aug 2026525 AMAQI

25°C16/35°C

1st Aug 2026506 AMAQI
1st Aug 2026527 AMAQI
1st Aug 2026548 AMAQI
1st Aug 2026569 AMAQI
1st Aug 20265810 AMAQI
1st Aug 20265711 AMAQI
1st Aug 20265012 PMAQI
1st Aug 2026441 PMAQI
1st Aug 2026422 PMAQI
1st Aug 2026323 PMAQI
1st Aug 2026304 PMAQI
1st Aug 2026225 PMAQI
1st Aug 2026256 PMAQI
1st Aug 2026267 PMAQI
1st Aug 2026228 PMAQI
1st Aug 2026309 PMAQI
1st Aug 20264710 PMAQI
1st Aug 20265611 PMAQI
2nd Aug 20265812 AMAQI
2nd Aug 2026541 AMAQI
2nd Aug 2026532 AMAQI
2nd Aug 2026553 AMAQI
2nd Aug 2026544 AMAQI
2nd Aug 2026535 AMAQI

26°C18/35°C

2nd Aug 2026526 AMAQI
2nd Aug 2026547 AMAQI
2nd Aug 2026538 AMAQI
2nd Aug 2026509 AMAQI
2nd Aug 20265510 AMAQI
2nd Aug 20265611 AMAQI
2nd Aug 20265412 PMAQI
2nd Aug 2026541 PMAQI
2nd Aug 2026542 PMAQI
2nd Aug 2026493 PMAQI
2nd Aug 2026454 PMAQI
2nd Aug 2026365 PMAQI
2nd Aug 2026366 PMAQI
2nd Aug 2026327 PMAQI
2nd Aug 2026538 PMAQI
2nd Aug 2026369 PMAQI
2nd Aug 20265910 PMAQI
2nd Aug 20264811 PMAQI
3rd Aug 20265212 AMAQI
3rd Aug 2026321 AMAQI
3rd Aug 2026512 AMAQI
3rd Aug 2026543 AMAQI
3rd Aug 2026554 AMAQI
3rd Aug 2026545 AMAQI

26°C17/35°C

3rd Aug 2026546 AMAQI
3rd Aug 2026577 AMAQI
3rd Aug 2026598 AMAQI
3rd Aug 2026519 AMAQI
3rd Aug 20265410 AMAQI
3rd Aug 20265011 AMAQI
3rd Aug 20264812 PMAQI
3rd Aug 2026421 PMAQI
3rd Aug 2026372 PMAQI
3rd Aug 2026393 PMAQI
3rd Aug 2026394 PMAQI
3rd Aug 2026495 PMAQI
3rd Aug 2026286 PMAQI
3rd Aug 2026417 PMAQI
3rd Aug 2026458 PMAQI
3rd Aug 2026479 PMAQI
3rd Aug 20265910 PMAQI
3rd Aug 20265711 PMAQI
4th Aug 20265412 AMAQI
4th Aug 2026281 AMAQI
4th Aug 2026292 AMAQI
4th Aug 2026463 AMAQI
4th Aug 2026454 AMAQI
4th Aug 2026365 AMAQI

26°C17/34°C

4th Aug 2026346 AMAQI
4th Aug 2026317 AMAQI
4th Aug 2026298 AMAQI
4th Aug 2026259 AMAQI
4th Aug 20264010 AMAQI
4th Aug 20263811 AMAQI
4th Aug 20264112 PMAQI
4th Aug 2026271 PMAQI
4th Aug 2026502 PMAQI
4th Aug 2026513 PMAQI
4th Aug 2026474 PMAQI
4th Aug 2026295 PMAQI
4th Aug 2026376 PMAQI
4th Aug 2026427 PMAQI
4th Aug 2026438 PMAQI
4th Aug 2026449 PMAQI
4th Aug 20264410 PMAQI
4th Aug 20264711 PMAQI
5th Aug 20265512 AMAQI
5th Aug 2026591 AMAQI
5th Aug 2026562 AMAQI
5th Aug 2026623 AMAQI
5th Aug 2026584 AMAQI
5th Aug 2026585 AMAQI

27°C17/36°C

5th Aug 2026576 AMAQI
5th Aug 2026577 AMAQI
5th Aug 2026588 AMAQI
5th Aug 2026589 AMAQI
5th Aug 20266010 AMAQI
5th Aug 20266311 AMAQI
5th Aug 20265512 PMAQI
5th Aug 2026541 PMAQI
5th Aug 2026562 PMAQI
5th Aug 2026583 PMAQI
5th Aug 2026564 PMAQI
5th Aug 2026505 PMAQI
5th Aug 2026446 PMAQI
5th Aug 2026497 PMAQI
5th Aug 2026508 PMAQI
5th Aug 2026539 PMAQI
5th Aug 20265910 PMAQI
5th Aug 20266011 PMAQI
6th Aug 20265512 AMAQI
6th Aug 2026621 AMAQI
6th Aug 2026592 AMAQI
6th Aug 2026563 AMAQI
6th Aug 2026544 AMAQI
6th Aug 2026575 AMAQI

27°C19/36°C

6th Aug 2026606 AMAQI
6th Aug 2026557 AMAQI
6th Aug 2026618 AMAQI
6th Aug 2026639 AMAQI
6th Aug 20266310 AMAQI
6th Aug 20266811 AMAQI
6th Aug 20267012 PMAQI
6th Aug 2026581 PMAQI
6th Aug 2026632 PMAQI
6th Aug 2026683 PMAQI
6th Aug 2026694 PMAQI
6th Aug 2026665 PMAQI
6th Aug 2026736 PMAQI
6th Aug 2026557 PMAQI
6th Aug 2026708 PMAQI
6th Aug 2026699 PMAQI
6th Aug 20268510 PMAQI
6th Aug 20268211 PMAQI
7th Aug 20267812 AMAQI
7th Aug 2026701 AMAQI
7th Aug 2026712 AMAQI
7th Aug 2026773 AMAQI
7th Aug 2026684 AMAQI
7th Aug 2026715 AMAQI

27°C19/36°C

7th Aug 2026726 AMAQI
7th Aug 2026747 AMAQI
7th Aug 2026728 AMAQI
7th Aug 2026749 AMAQI
7th Aug 20267310 AMAQI
7th Aug 20267111 AMAQI
7th Aug 20266712 PMAQI
7th Aug 2026681 PMAQI
7th Aug 2026622 PMAQI
7th Aug 2026613 PMAQI
7th Aug 2026564 PMAQI
7th Aug 2026555 PMAQI
7th Aug 2026576 PMAQI
7th Aug 2026547 PMAQI
7th Aug 2026548 PMAQI
7th Aug 2026529 PMAQI
7th Aug 20265510 PMAQI
7th Aug 20265711 PMAQI
8th Aug 20265912 AMAQI
8th Aug 2026571 AMAQI
8th Aug 2026552 AMAQI
8th Aug 2026613 AMAQI
8th Aug 2026654 AMAQI
8th Aug 2026595 AMAQI

24°C17/35°C

8th Aug 2026556 AMAQI
8th Aug 2026587 AMAQI
8th Aug 2026608 AMAQI
8th Aug 2026519 AMAQI
8th Aug 20264410 AMAQI
8th Aug 20264611 AMAQI
8th Aug 20264712 PMAQI
8th Aug 2026501 PMAQI
8th Aug 2026402 PMAQI
8th Aug 2026303 PMAQI
8th Aug 2026324 PMAQI
8th Aug 2026315 PMAQI
8th Aug 2026256 PMAQI
8th Aug 2026247 PMAQI
8th Aug 2026268 PMAQI
8th Aug 2026299 PMAQI
8th Aug 20262410 PMAQI
8th Aug 20262411 PMAQI
9th Aug 20263112 AMAQI
9th Aug 2026271 AMAQI
9th Aug 2026232 AMAQI
9th Aug 2026303 AMAQI
9th Aug 2026334 AMAQI
9th Aug 2026525 AMAQI

22°C16/33°C

9th Aug 2026426 AMAQI
9th Aug 2026237 AMAQI
9th Aug 2026238 AMAQI
9th Aug 2026269 AMAQI
9th Aug 20262610 AMAQI
9th Aug 20262511 AMAQI
9th Aug 20263612 PMAQI
9th Aug 2026221 PMAQI
9th Aug 2026242 PMAQI
9th Aug 2026223 PMAQI
9th Aug 2026264 PMAQI
9th Aug 2026265 PMAQI
9th Aug 2026236 PMAQI
9th Aug 2026257 PMAQI
9th Aug 2026238 PMAQI
9th Aug 2026289 PMAQI
9th Aug 20262910 PMAQI
9th Aug 20264611 PMAQI
10th Aug 20267012 AMAQI
10th Aug 2026661 AMAQI
10th Aug 2026652 AMAQI
10th Aug 2026603 AMAQI
10th Aug 2026554 AMAQI
10th Aug 2026595 AMAQI

22°C15/29°C

10th Aug 2026526 AMAQI
10th Aug 2026547 AMAQI
10th Aug 2026538 AMAQI
10th Aug 2026699 AMAQI
10th Aug 20265910 AMAQI
10th Aug 20265511 AMAQI
10th Aug 20264912 PMAQI
10th Aug 2026521 PMAQI
10th Aug 2026602 PMAQI
10th Aug 2026493 PMAQI
10th Aug 2026384 PMAQI
10th Aug 2026345 PMAQI
10th Aug 2026266 PMAQI
10th Aug 2026247 PMAQI
10th Aug 2026268 PMAQI
10th Aug 2026299 PMAQI
10th Aug 20264510 PMAQI
10th Aug 20265911 PMAQI
11th Aug 20265312 AMAQI
11th Aug 2026501 AMAQI
11th Aug 2026412 AMAQI
11th Aug 2026623 AMAQI
11th Aug 2026404 AMAQI
11th Aug 2026425 AMAQI

24°C15/33°C

11th Aug 2026506 AMAQI
11th Aug 2026397 AMAQI
11th Aug 2026478 AMAQI
11th Aug 2026509 AMAQI
11th Aug 20264510 AMAQI
11th Aug 20264311 AMAQI
11th Aug 20264112 PMAQI
11th Aug 2026571 PMAQI
11th Aug 2026452 PMAQI
11th Aug 2026363 PMAQI
11th Aug 2026304 PMAQI
11th Aug 2026315 PMAQI
11th Aug 2026266 PMAQI
11th Aug 2026247 PMAQI
11th Aug 2026308 PMAQI
11th Aug 2026529 PMAQI
11th Aug 20265410 PMAQI
11th Aug 20266111 PMAQI
12th Aug 20266012 AMAQI
12th Aug 2026551 AMAQI
12th Aug 2026532 AMAQI
12th Aug 2026503 AMAQI
12th Aug 2026464 AMAQI
12th Aug 2026505 AMAQI

26°C17/36°C

12th Aug 2026546 AMAQI
6 AM
12th Aug 2026527 AMAQI
12th Aug 2026578 AMAQI
12th Aug 2026589 AMAQI
12th Aug 20265510 AMAQI
12th Aug 20265211 AMAQI
12th Aug 20265512 PMAQI
12th Aug 2026571 PMAQI
1 PM
12th Aug 2026552 PMAQI
12th Aug 2026513 PMAQI
12th Aug 2026434 PMAQI
12th Aug 2026405 PMAQI
12th Aug 2026326 PMAQI
12th Aug 2026277 PMAQI
12th Aug 2026268 PMAQI
12th Aug 2026299 PMAQI
9 PM
12th Aug 20262810 PMAQI
12th Aug 20264311 PMAQI
1 AM
5 AM

24°C16/31°C

Day time
Avg. Highest Time
8 AM - 11 AM

45AQI

4 hours / Day
120 hours / Month
Avg. Lowest Time
5 PM - 6 PM

33AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 8 AM to 11 AM (Avg. 45), while the lowest AQI was between 5 PM to 6 PM (Avg. 33).
Night time
Avg. Highest Time
12 AM

47AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
10 PM

41AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 12 AM (Avg. 47), while the lowest AQI was between 10 PM to 10 PM (Avg. 41).

2026 Days Vs Air Quality

Cluj Napoca, Cluj, Romania

2026

36%

80

46%

102

16%

35

1%

3

Total number of days with different AQI categories in last 224 days in 2026 (141 days remaining)

Good
80 Days
Moderate
102 Days
Poor
35 Days
Unhealthy
3 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 36%

Health Risk Level:

High

In 2026, 36% of 224 days were within WHO’s safe air quality limits. The risk of health issues is High, with respiratory problems, heart disease, skin issues, and stress being more common, particularly among children and the elderly.

Annual Air Quality Insights

Cluj Napoca, Cluj, Romania

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
68AQI (US)
2nd January 2026
71AQI (US)
3rd January 2026
56AQI (US)
4th January 2026
92AQI (US)
5th January 2026
89AQI (US)
6th January 2026
106AQI (US)
7th January 2026
72AQI (US)
8th January 2026
80AQI (US)
9th January 2026
82AQI (US)
10th January 2026
105AQI (US)
11th January 2026
66AQI (US)
12th January 2026
114AQI (US)
13th January 2026
101AQI (US)
14th January 2026
119AQI (US)
15th January 2026
143AQI (US)
16th January 2026
106AQI (US)
17th January 2026
75AQI (US)
18th January 2026
134AQI (US)
19th January 2026
138AQI (US)
20th January 2026
155AQI (US)
21st January 2026
157AQI (US)
22nd January 2026
162AQI (US)
23rd January 2026
134AQI (US)
24th January 2026
139AQI (US)
25th January 2026
118AQI (US)
26th January 2026
67AQI (US)
27th January 2026
107AQI (US)
28th January 2026
97AQI (US)
29th January 2026
139AQI (US)
30th January 2026
145AQI (US)
31st January 2026
110AQI (US)
1st February 2026
89AQI (US)
2nd February 2026
93AQI (US)
3rd February 2026
91AQI (US)
4th February 2026
108AQI (US)
5th February 2026
69AQI (US)
6th February 2026
55AQI (US)
7th February 2026
76AQI (US)
8th February 2026
103AQI (US)
9th February 2026
101AQI (US)
10th February 2026
71AQI (US)
11th February 2026
78AQI (US)
12th February 2026
91AQI (US)
13th February 2026
102AQI (US)
14th February 2026
67AQI (US)
15th February 2026
89AQI (US)
16th February 2026
84AQI (US)
17th February 2026
95AQI (US)
18th February 2026
87AQI (US)
19th February 2026
86AQI (US)
20th February 2026
79AQI (US)
21st February 2026
53AQI (US)
22nd February 2026
113AQI (US)
23rd February 2026
108AQI (US)
24th February 2026
86AQI (US)
25th February 2026
43AQI (US)
26th February 2026
58AQI (US)
27th February 2026
108AQI (US)
28th February 2026
123AQI (US)
1st March 2026
114AQI (US)
2nd March 2026
119AQI (US)
3rd March 2026
125AQI (US)
4th March 2026
112AQI (US)
5th March 2026
110AQI (US)
6th March 2026
62AQI (US)
7th March 2026
92AQI (US)
8th March 2026
110AQI (US)
9th March 2026
91AQI (US)
10th March 2026
86AQI (US)
11th March 2026
83AQI (US)
12th March 2026
98AQI (US)
13th March 2026
108AQI (US)
14th March 2026
100AQI (US)
15th March 2026
67AQI (US)
16th March 2026
87AQI (US)
17th March 2026
113AQI (US)
18th March 2026
115AQI (US)
19th March 2026
84AQI (US)
20th March 2026
66AQI (US)
21st March 2026
76AQI (US)
22nd March 2026
62AQI (US)
23rd March 2026
53AQI (US)
24th March 2026
82AQI (US)
25th March 2026
95AQI (US)
26th March 2026
97AQI (US)
27th March 2026
81AQI (US)
28th March 2026
68AQI (US)
29th March 2026
66AQI (US)
30th March 2026
89AQI (US)
31st March 2026
78AQI (US)
1st April 2026
86AQI (US)
2nd April 2026
93AQI (US)
3rd April 2026
122AQI (US)
4th April 2026
81AQI (US)
5th April 2026
73AQI (US)
6th April 2026
71AQI (US)
7th April 2026
43AQI (US)
8th April 2026
66AQI (US)
9th April 2026
64AQI (US)
10th April 2026
76AQI (US)
11th April 2026
76AQI (US)
12th April 2026
81AQI (US)
13th April 2026
91AQI (US)
14th April 2026
60AQI (US)
15th April 2026
85AQI (US)
16th April 2026
75AQI (US)
17th April 2026
18th April 2026
62AQI (US)
19th April 2026
54AQI (US)
20th April 2026
68AQI (US)
21st April 2026
57AQI (US)
22nd April 2026
23rd April 2026
32AQI (US)
24th April 2026
34AQI (US)
25th April 2026
59AQI (US)
26th April 2026
41AQI (US)
27th April 2026
32AQI (US)
28th April 2026
46AQI (US)
29th April 2026
51AQI (US)
30th April 2026
40AQI (US)
1st May 2026
58AQI (US)
2nd May 2026
54AQI (US)
3rd May 2026
48AQI (US)
4th May 2026
36AQI (US)
5th May 2026
38AQI (US)
6th May 2026
48AQI (US)
7th May 2026
69AQI (US)
8th May 2026
56AQI (US)
9th May 2026
10th May 2026
53AQI (US)
11th May 2026
41AQI (US)
12th May 2026
34AQI (US)
13th May 2026
52AQI (US)
14th May 2026
43AQI (US)
15th May 2026
43AQI (US)
16th May 2026
42AQI (US)
17th May 2026
51AQI (US)
18th May 2026
37AQI (US)
19th May 2026
34AQI (US)
20th May 2026
44AQI (US)
21st May 2026
58AQI (US)
22nd May 2026
60AQI (US)
23rd May 2026
39AQI (US)
24th May 2026
41AQI (US)
25th May 2026
43AQI (US)
26th May 2026
40AQI (US)
27th May 2026
30AQI (US)
28th May 2026
32AQI (US)
29th May 2026
33AQI (US)
30th May 2026
22AQI (US)
31st May 2026
35AQI (US)
1st June 2026
40AQI (US)
2nd June 2026
41AQI (US)
3rd June 2026
41AQI (US)
4th June 2026
64AQI (US)
5th June 2026
53AQI (US)
6th June 2026
54AQI (US)
7th June 2026
28AQI (US)
8th June 2026
18AQI (US)
9th June 2026
36AQI (US)
10th June 2026
42AQI (US)
11th June 2026
66AQI (US)
12th June 2026
52AQI (US)
13th June 2026
25AQI (US)
14th June 2026
22AQI (US)
15th June 2026
24AQI (US)
16th June 2026
34AQI (US)
17th June 2026
34AQI (US)
18th June 2026
27AQI (US)
19th June 2026
43AQI (US)
20th June 2026
55AQI (US)
21st June 2026
62AQI (US)
22nd June 2026
67AQI (US)
23rd June 2026
51AQI (US)
24th June 2026
47AQI (US)
25th June 2026
65AQI (US)
26th June 2026
59AQI (US)
27th June 2026
51AQI (US)
28th June 2026
87AQI (US)
29th June 2026
96AQI (US)
30th June 2026
102AQI (US)
1st July 2026
47AQI (US)
2nd July 2026
61AQI (US)
3rd July 2026
46AQI (US)
4th July 2026
18AQI (US)
5th July 2026
18AQI (US)
6th July 2026
24AQI (US)
7th July 2026
26AQI (US)
8th July 2026
26AQI (US)
9th July 2026
25AQI (US)
10th July 2026
28AQI (US)
11th July 2026
34AQI (US)
12th July 2026
39AQI (US)
13th July 2026
24AQI (US)
14th July 2026
38AQI (US)
15th July 2026
55AQI (US)
16th July 2026
35AQI (US)
17th July 2026
44AQI (US)
18th July 2026
55AQI (US)
19th July 2026
48AQI (US)
20th July 2026
41AQI (US)
21st July 2026
27AQI (US)
22nd July 2026
31AQI (US)
23rd July 2026
31AQI (US)
24th July 2026
29AQI (US)
25th July 2026
25AQI (US)
26th July 2026
28AQI (US)
27th July 2026
40AQI (US)
28th July 2026
34AQI (US)
29th July 2026
30AQI (US)
30th July 2026
30AQI (US)
31st July 2026
32AQI (US)
1st August 2026
45AQI (US)
2nd August 2026
50AQI (US)
3rd August 2026
48AQI (US)
4th August 2026
39AQI (US)
5th August 2026
56AQI (US)
6th August 2026
64AQI (US)
7th August 2026
65AQI (US)
8th August 2026
44AQI (US)
9th August 2026
29AQI (US)
10th August 2026
50AQI (US)
11th August 2026
44AQI (US)
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

108AQI (US)

86AQI (US)

90AQI (US)

65AQI (US)

44AQI (US)

50AQI (US)

34AQI (US)

49AQI (US)

No. of days

Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days

202667AQI (US)

12
16
3
1
19
8
22
9
7
20
1
21
9
15
14
1
28
3
8
3
80
102
35
3

Highest AQI (US) recorded in

January

108AQI (US)

Lowest AQI (US) recorded in

July

34AQI (US)

202550AQI (US)

31
28
6
25
30
31
26
4
31
31
30
5
26
2
26
2
2
23
4
2
194
163
6
2

Highest AQI (US) recorded in

December

81AQI (US)

Lowest AQI (US) recorded in

August

30AQI (US)

202445AQI (US)

4
23
4
7
21
1
17
14
30
31
30
27
4
31
30
21
9
1
2
23
5
31
230
125
11

Highest AQI (US) recorded in

January

75AQI (US)

Lowest AQI (US) recorded in

September

16AQI (US)

202349AQI (US)

6
22
3
11
12
5
13
18
22
8
28
3
30
25
6
23
8
25
5
24
7
16
13
6
20
5
229
122
13

Highest AQI (US) recorded in

December

70AQI (US)

Lowest AQI (US) recorded in

June

32AQI (US)

202233AQI (US)

23
7
17
4
28
3
29
31
30
25
2
28
27
4
7
23
3
21
7
250
62
7

Highest AQI (US) recorded in

December

82AQI (US)

Lowest AQI (US) recorded in

August

14AQI (US)

202126AQI (US)

26
4
28
31
30
31
30
29
2
30
1
30
25
6
25
5
31
346
18

Highest AQI (US) recorded in

January

34AQI (US)

Lowest AQI (US) recorded in

September

19AQI (US)

202011AQI (US)

13
21
18
30
31
31
30
26
30
31
261

Highest AQI (US) recorded in

November

18AQI (US)

Lowest AQI (US) recorded in

June

6AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2026(Avg.)
67AQI (US)
Least Polluted Year Recorded
2020(Avg.)
11AQI (US)

Cluj Napoca's annual 2026 AQI (US) (67) shows an average percentage change of 148.2% (worsened AQI (US)) compared to previous years: 2020 (11), 2021 (26), 2022 (33), 2023 (49), 2024 (45), 2025 (50).