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HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Strada Observatorului, 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+

July Air Quality Analysis

Strada Observatorului, Cluj Napoca, Cluj, Romania

2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
2nd Jul 2026
63AQI
Lowest AQI recorded on
5th Jul 2026
18AQI

Same Day Analysis (31st July):
On this day, AQI across the 3 years varied significantly: 2026 ranks 1st highest AQI at 32 of Good air quality on the same day.

Day & Night AQI Trend: 30th Jul - 31st Jul 2026

Strada Observatorului, Cluj Napoca, Cluj, Romania

AQI
Day
Night
.

5 AM30th Jul 2026

9 PM

4 AM31st Jul 2026

Day time
Avg. Highest Time
7AM30th Jul

47AQI

Avg. Lowest Time
7PM30th Jul

21AQI

Night time
Avg. Highest Time
2AM31st Jul

34AQI

Avg. Lowest Time
4AM31st Jul

23AQI

In the last 24 hours,

Strada Observatorului's AQI reached its highest point of 47 at 7 AM during the Day, while the lowest point, 21, was recorded at 7 PM during the Day between 30th Jul and 31st Jul 2026.

Day & Night AQI Trend : Jul 2026

Strada Observatorului, Cluj Napoca, Cluj, Romania

Jul
02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st
Day
Night
2nd Jul 2026885 AMAQI
2nd Jul 2026726 AMAQI
2nd Jul 2026737 AMAQI
2nd Jul 2026488 AMAQI
2nd Jul 2026629 AMAQI
2nd Jul 20266610 AMAQI
2nd Jul 20265711 AMAQI
2nd Jul 20267012 PMAQI
2nd Jul 2026731 PMAQI
2nd Jul 2026982 PMAQI
2nd Jul 2026683 PMAQI
2nd Jul 2026644 PMAQI
2nd Jul 2026745 PMAQI
2nd Jul 2026576 PMAQI
2nd Jul 2026627 PMAQI
2nd Jul 2026518 PMAQI
2nd Jul 2026559 PMAQI
2nd Jul 20266210 PMAQI
2nd Jul 20266311 PMAQI
3rd Jul 20265612 AMAQI
3rd Jul 2026401 AMAQI
3rd Jul 2026362 AMAQI
3rd Jul 2026383 AMAQI
3rd Jul 2026364 AMAQI

22°C16/28°C

3rd Jul 2026385 AMAQI
3rd Jul 2026486 AMAQI
3rd Jul 2026547 AMAQI
3rd Jul 2026628 AMAQI
3rd Jul 2026549 AMAQI
3rd Jul 20265410 AMAQI
3rd Jul 20264411 AMAQI
3rd Jul 20265212 PMAQI
3rd Jul 2026511 PMAQI
3rd Jul 2026622 PMAQI
3rd Jul 20261003 PMAQI
3rd Jul 2026654 PMAQI
3rd Jul 2026295 PMAQI
3rd Jul 2026126 PMAQI
3rd Jul 2026177 PMAQI
3rd Jul 2026178 PMAQI
3rd Jul 2026299 PMAQI
3rd Jul 20265010 PMAQI
3rd Jul 20266211 PMAQI
4th Jul 20265612 AMAQI
4th Jul 2026461 AMAQI
4th Jul 2026332 AMAQI
4th Jul 2026293 AMAQI
4th Jul 2026214 AMAQI

20°C16/26°C

4th Jul 2026125 AMAQI
4th Jul 202686 AMAQI
4th Jul 202687 AMAQI
4th Jul 202688 AMAQI
4th Jul 202689 AMAQI
4th Jul 2026610 AMAQI
4th Jul 2026811 AMAQI
4th Jul 20261612 PMAQI
4th Jul 2026281 PMAQI
4th Jul 2026182 PMAQI
4th Jul 2026173 PMAQI
4th Jul 202684 PMAQI
4th Jul 202685 PMAQI
4th Jul 202686 PMAQI
4th Jul 202687 PMAQI
4th Jul 202688 PMAQI
4th Jul 2026149 PMAQI
4th Jul 20262310 PMAQI
4th Jul 20265011 PMAQI
5th Jul 20264412 AMAQI
5th Jul 2026271 AMAQI
5th Jul 2026252 AMAQI
5th Jul 2026253 AMAQI
5th Jul 2026174 AMAQI

17°C12/22°C

5th Jul 2026145 AMAQI
5th Jul 2026176 AMAQI
5th Jul 2026127 AMAQI
5th Jul 2026128 AMAQI
5th Jul 2026129 AMAQI
5th Jul 2026810 AMAQI
5th Jul 2026811 AMAQI
5th Jul 20261712 PMAQI
5th Jul 2026121 PMAQI
5th Jul 2026122 PMAQI
5th Jul 2026143 PMAQI
5th Jul 2026124 PMAQI
5th Jul 2026175 PMAQI
5th Jul 2026126 PMAQI
5th Jul 2026127 PMAQI
5th Jul 2026128 PMAQI
5th Jul 2026319 PMAQI
5th Jul 20262610 PMAQI
5th Jul 20262611 PMAQI
6th Jul 20262612 AMAQI
6th Jul 2026251 AMAQI
6th Jul 2026242 AMAQI
6th Jul 2026233 AMAQI
6th Jul 2026224 AMAQI

17°C11/23°C

6th Jul 2026245 AMAQI
6th Jul 2026236 AMAQI
6th Jul 2026227 AMAQI
6th Jul 2026228 AMAQI
6th Jul 2026269 AMAQI
6th Jul 20262710 AMAQI
6th Jul 20262411 AMAQI
6th Jul 20262212 PMAQI
6th Jul 2026221 PMAQI
6th Jul 2026282 PMAQI
6th Jul 2026283 PMAQI
6th Jul 2026254 PMAQI
6th Jul 2026285 PMAQI
6th Jul 2026316 PMAQI
6th Jul 2026307 PMAQI
6th Jul 2026298 PMAQI
6th Jul 2026329 PMAQI
6th Jul 20262610 PMAQI
6th Jul 20263211 PMAQI
7th Jul 20263012 AMAQI
7th Jul 2026301 AMAQI
7th Jul 2026282 AMAQI
7th Jul 2026253 AMAQI
7th Jul 2026244 AMAQI

19°C12/24°C

7th Jul 2026245 AMAQI
7th Jul 2026266 AMAQI
7th Jul 2026267 AMAQI
7th Jul 2026288 AMAQI
7th Jul 2026299 AMAQI
7th Jul 20262710 AMAQI
7th Jul 20262211 AMAQI
7th Jul 20262612 PMAQI
7th Jul 2026261 PMAQI
7th Jul 2026272 PMAQI
7th Jul 2026263 PMAQI
7th Jul 2026284 PMAQI
7th Jul 2026285 PMAQI
7th Jul 2026346 PMAQI
7th Jul 2026307 PMAQI
7th Jul 2026318 PMAQI
7th Jul 2026279 PMAQI
7th Jul 20262810 PMAQI
7th Jul 20263211 PMAQI
8th Jul 20262812 AMAQI
8th Jul 2026281 AMAQI
8th Jul 2026322 AMAQI
8th Jul 2026263 AMAQI
8th Jul 2026284 AMAQI

19°C14/25°C

8th Jul 2026275 AMAQI
8th Jul 2026266 AMAQI
8th Jul 2026267 AMAQI
8th Jul 2026288 AMAQI
8th Jul 2026269 AMAQI
8th Jul 20262810 AMAQI
8th Jul 20262611 AMAQI
8th Jul 20262612 PMAQI
8th Jul 2026201 PMAQI
8th Jul 2026352 PMAQI
8th Jul 2026263 PMAQI
8th Jul 2026254 PMAQI
8th Jul 2026235 PMAQI
8th Jul 2026306 PMAQI
8th Jul 2026417 PMAQI
8th Jul 2026428 PMAQI
8th Jul 2026349 PMAQI
8th Jul 20263010 PMAQI
8th Jul 20262711 PMAQI
9th Jul 20262812 AMAQI
9th Jul 2026301 AMAQI
9th Jul 2026262 AMAQI
9th Jul 2026253 AMAQI
9th Jul 2026244 AMAQI

17°C11/21°C

9th Jul 2026245 AMAQI
9th Jul 2026226 AMAQI
9th Jul 2026227 AMAQI
9th Jul 2026268 AMAQI
9th Jul 2026279 AMAQI
9th Jul 20262810 AMAQI
9th Jul 20262811 AMAQI
9th Jul 20262612 PMAQI
9th Jul 2026261 PMAQI
9th Jul 2026272 PMAQI
9th Jul 2026253 PMAQI
9th Jul 2026374 PMAQI
9th Jul 2026305 PMAQI
9th Jul 2026286 PMAQI
9th Jul 2026347 PMAQI
9th Jul 2026308 PMAQI
9th Jul 2026309 PMAQI
9th Jul 20262810 PMAQI
9th Jul 20263011 PMAQI
10th Jul 20261712 AMAQI
10th Jul 2026231 AMAQI
10th Jul 2026322 AMAQI
10th Jul 2026283 AMAQI
10th Jul 2026294 AMAQI

15°C9/22°C

10th Jul 2026285 AMAQI
10th Jul 2026286 AMAQI
10th Jul 2026287 AMAQI
10th Jul 2026248 AMAQI
10th Jul 2026249 AMAQI
10th Jul 20262610 AMAQI
10th Jul 20262911 AMAQI
10th Jul 20262612 PMAQI
10th Jul 2026301 PMAQI
10th Jul 2026302 PMAQI
10th Jul 2026323 PMAQI
10th Jul 202684 PMAQI
10th Jul 2026205 PMAQI
10th Jul 2026226 PMAQI
10th Jul 2026367 PMAQI
10th Jul 2026368 PMAQI
10th Jul 2026329 PMAQI
10th Jul 20264410 PMAQI
10th Jul 20266511 PMAQI
11th Jul 20265012 AMAQI
11th Jul 2026521 AMAQI
11th Jul 2026382 AMAQI
11th Jul 2026523 AMAQI
11th Jul 2026444 AMAQI

16°C9/22°C

11th Jul 2026425 AMAQI
11th Jul 2026486 AMAQI
11th Jul 2026277 AMAQI
11th Jul 2026298 AMAQI
11th Jul 2026319 AMAQI
11th Jul 20262710 AMAQI
11th Jul 20263011 AMAQI
11th Jul 20263012 PMAQI
11th Jul 2026281 PMAQI
11th Jul 2026252 PMAQI
11th Jul 2026283 PMAQI
11th Jul 2026304 PMAQI
11th Jul 2026325 PMAQI
11th Jul 2026326 PMAQI
11th Jul 2026327 PMAQI
11th Jul 2026338 PMAQI
11th Jul 2026309 PMAQI
11th Jul 20262710 PMAQI
11th Jul 20263111 PMAQI
12th Jul 20263312 AMAQI
12th Jul 2026581 AMAQI
12th Jul 2026552 AMAQI
12th Jul 2026603 AMAQI
12th Jul 2026484 AMAQI

18°C12/26°C

12th Jul 2026555 AMAQI
12th Jul 2026466 AMAQI
12th Jul 2026497 AMAQI
12th Jul 2026598 AMAQI
12th Jul 2026569 AMAQI
12th Jul 20264810 AMAQI
12th Jul 20264211 AMAQI
12th Jul 20263112 PMAQI
12th Jul 2026281 PMAQI
12th Jul 2026302 PMAQI
12th Jul 2026313 PMAQI
12th Jul 2026344 PMAQI
12th Jul 2026285 PMAQI
12th Jul 2026146 PMAQI
12th Jul 2026217 PMAQI
12th Jul 2026338 PMAQI
12th Jul 2026319 PMAQI
12th Jul 20262610 PMAQI
12th Jul 20263011 PMAQI
13th Jul 20262712 AMAQI
13th Jul 2026281 AMAQI
13th Jul 2026282 AMAQI
13th Jul 2026323 AMAQI
13th Jul 2026324 AMAQI

18°C13/25°C

13th Jul 2026295 AMAQI
13th Jul 2026276 AMAQI
13th Jul 2026247 AMAQI
13th Jul 2026248 AMAQI
13th Jul 2026769 AMAQI
13th Jul 20262510 AMAQI
13th Jul 20262711 AMAQI
13th Jul 20262312 PMAQI
13th Jul 2026171 PMAQI
13th Jul 2026292 PMAQI
13th Jul 2026123 PMAQI
13th Jul 2026164 PMAQI
13th Jul 202685 PMAQI
13th Jul 2026146 PMAQI
13th Jul 2026197 PMAQI
13th Jul 2026238 PMAQI
13th Jul 2026129 PMAQI
13th Jul 20262110 PMAQI
13th Jul 20262711 PMAQI
14th Jul 20262712 AMAQI
14th Jul 2026171 AMAQI
14th Jul 2026172 AMAQI
14th Jul 2026173 AMAQI
14th Jul 2026174 AMAQI

18°C13/24°C

14th Jul 2026175 AMAQI
14th Jul 2026216 AMAQI
14th Jul 2026257 AMAQI
14th Jul 2026318 AMAQI
14th Jul 2026519 AMAQI
14th Jul 20265810 AMAQI
14th Jul 20265911 AMAQI
14th Jul 20266012 PMAQI
14th Jul 2026601 PMAQI
14th Jul 2026542 PMAQI
14th Jul 2026383 PMAQI
14th Jul 2026384 PMAQI
14th Jul 2026445 PMAQI
14th Jul 2026426 PMAQI
14th Jul 2026647 PMAQI
14th Jul 2026448 PMAQI
14th Jul 2026279 PMAQI
14th Jul 20262710 PMAQI
14th Jul 20264011 PMAQI
15th Jul 20265412 AMAQI
15th Jul 2026681 AMAQI
15th Jul 2026552 AMAQI
15th Jul 2026643 AMAQI
15th Jul 2026634 AMAQI

21°C14/27°C

15th Jul 2026605 AMAQI
15th Jul 2026636 AMAQI
15th Jul 2026547 AMAQI
15th Jul 2026628 AMAQI
15th Jul 2026629 AMAQI
15th Jul 20266010 AMAQI
15th Jul 20265811 AMAQI
15th Jul 20265512 PMAQI
15th Jul 2026501 PMAQI
15th Jul 2026692 PMAQI
15th Jul 2026403 PMAQI
15th Jul 2026384 PMAQI
15th Jul 2026405 PMAQI
15th Jul 2026506 PMAQI
15th Jul 2026587 PMAQI
15th Jul 2026708 PMAQI
15th Jul 2026249 PMAQI
15th Jul 20265610 PMAQI
15th Jul 20264411 PMAQI
16th Jul 20265012 AMAQI
16th Jul 2026551 AMAQI
16th Jul 2026442 AMAQI
16th Jul 2026603 AMAQI
16th Jul 2026404 AMAQI

21°C15/30°C

16th Jul 2026385 AMAQI
16th Jul 2026316 AMAQI
16th Jul 2026317 AMAQI
16th Jul 2026338 AMAQI
16th Jul 2026299 AMAQI
16th Jul 20264210 AMAQI
16th Jul 20264211 AMAQI
16th Jul 20264612 PMAQI
16th Jul 2026481 PMAQI
16th Jul 2026212 PMAQI
16th Jul 2026273 PMAQI
16th Jul 2026254 PMAQI
16th Jul 2026275 PMAQI
16th Jul 2026236 PMAQI
16th Jul 2026317 PMAQI
16th Jul 2026298 PMAQI
16th Jul 2026179 PMAQI
16th Jul 20261710 PMAQI
16th Jul 20263611 PMAQI
17th Jul 20262312 AMAQI
17th Jul 2026331 AMAQI
17th Jul 2026332 AMAQI
17th Jul 2026443 AMAQI
17th Jul 2026344 AMAQI

22°C15/29°C

17th Jul 2026465 AMAQI
17th Jul 2026446 AMAQI
17th Jul 2026557 AMAQI
17th Jul 2026598 AMAQI
17th Jul 2026549 AMAQI
17th Jul 20265710 AMAQI
17th Jul 20265511 AMAQI
17th Jul 20265712 PMAQI
17th Jul 2026511 PMAQI
17th Jul 2026512 PMAQI
17th Jul 2026463 PMAQI
17th Jul 2026254 PMAQI
17th Jul 2026365 PMAQI
17th Jul 2026316 PMAQI
17th Jul 2026297 PMAQI
17th Jul 2026328 PMAQI
17th Jul 2026349 PMAQI
17th Jul 20265810 PMAQI
17th Jul 20265311 PMAQI
18th Jul 20266012 AMAQI
18th Jul 2026571 AMAQI
18th Jul 2026602 AMAQI
18th Jul 2026573 AMAQI
18th Jul 2026564 AMAQI

23°C16/30°C

18th Jul 2026545 AMAQI
18th Jul 2026566 AMAQI
18th Jul 2026597 AMAQI
18th Jul 2026588 AMAQI
18th Jul 2026649 AMAQI
18th Jul 20266010 AMAQI
18th Jul 20265911 AMAQI
18th Jul 20265612 PMAQI
18th Jul 2026521 PMAQI
18th Jul 2026552 PMAQI
18th Jul 2026523 PMAQI
18th Jul 2026524 PMAQI
18th Jul 2026445 PMAQI
18th Jul 2026486 PMAQI
18th Jul 2026467 PMAQI
18th Jul 2026548 PMAQI
18th Jul 2026599 PMAQI
18th Jul 20266210 PMAQI
18th Jul 20265911 PMAQI
19th Jul 20265912 AMAQI
19th Jul 2026591 AMAQI
19th Jul 2026632 AMAQI
19th Jul 2026653 AMAQI
19th Jul 2026624 AMAQI

23°C17/30°C

19th Jul 2026655 AMAQI
19th Jul 2026626 AMAQI
19th Jul 2026647 AMAQI
19th Jul 2026608 AMAQI
19th Jul 2026579 AMAQI
19th Jul 20264810 AMAQI
19th Jul 20265211 AMAQI
19th Jul 20265812 PMAQI
19th Jul 2026491 PMAQI
19th Jul 2026422 PMAQI
19th Jul 2026383 PMAQI
19th Jul 2026294 PMAQI
19th Jul 2026235 PMAQI
19th Jul 2026256 PMAQI
19th Jul 2026257 PMAQI
19th Jul 2026278 PMAQI
19th Jul 2026469 PMAQI
19th Jul 20264610 PMAQI
19th Jul 20265111 PMAQI
20th Jul 20265112 AMAQI
20th Jul 2026421 AMAQI
20th Jul 2026462 AMAQI
20th Jul 2026523 AMAQI
20th Jul 2026504 AMAQI

24°C18/31°C

20th Jul 2026485 AMAQI
20th Jul 2026536 AMAQI
20th Jul 2026517 AMAQI
20th Jul 2026598 AMAQI
20th Jul 2026689 AMAQI
20th Jul 20265310 AMAQI
20th Jul 20266211 AMAQI
20th Jul 20264812 PMAQI
20th Jul 2026381 PMAQI
20th Jul 2026422 PMAQI
20th Jul 2026313 PMAQI
20th Jul 2026254 PMAQI
20th Jul 2026235 PMAQI
20th Jul 2026236 PMAQI
20th Jul 2026257 PMAQI
20th Jul 2026238 PMAQI
20th Jul 2026479 PMAQI
20th Jul 20262310 PMAQI
20th Jul 20263111 PMAQI
21st Jul 20262112 AMAQI
21st Jul 2026211 AMAQI
21st Jul 2026232 AMAQI
21st Jul 2026273 AMAQI
21st Jul 2026294 AMAQI

22°C16/29°C

21st Jul 2026385 AMAQI
21st Jul 2026217 AMAQI
21st Jul 2026238 AMAQI
21st Jul 2026259 AMAQI
21st Jul 20262510 AMAQI
21st Jul 20262511 AMAQI
21st Jul 20262912 PMAQI
21st Jul 2026381 PMAQI
21st Jul 2026332 PMAQI
21st Jul 2026313 PMAQI
21st Jul 2026234 PMAQI
21st Jul 2026255 PMAQI
21st Jul 2026256 PMAQI
21st Jul 2026257 PMAQI
21st Jul 2026258 PMAQI
21st Jul 2026369 PMAQI
21st Jul 20263110 PMAQI
21st Jul 20263611 PMAQI
22nd Jul 20264612 AMAQI
22nd Jul 2026251 AMAQI
22nd Jul 2026292 AMAQI
22nd Jul 2026423 AMAQI
22nd Jul 2026294 AMAQI

21°C14/28°C

22nd Jul 2026235 AMAQI
22nd Jul 2026386 AMAQI
22nd Jul 2026307 AMAQI
22nd Jul 2026298 AMAQI
22nd Jul 2026239 AMAQI
22nd Jul 20262110 AMAQI
22nd Jul 20262711 AMAQI
22nd Jul 20262912 PMAQI
22nd Jul 2026331 PMAQI
22nd Jul 2026382 PMAQI
22nd Jul 2026253 PMAQI
22nd Jul 2026214 PMAQI
22nd Jul 2026215 PMAQI
22nd Jul 2026446 PMAQI
22nd Jul 2026607 PMAQI
22nd Jul 2026238 PMAQI
22nd Jul 2026219 PMAQI
22nd Jul 20263110 PMAQI
22nd Jul 20262911 PMAQI
23rd Jul 20262912 AMAQI
23rd Jul 2026231 AMAQI
23rd Jul 2026292 AMAQI
23rd Jul 2026293 AMAQI
23rd Jul 2026294 AMAQI

17°C13/23°C

23rd Jul 2026295 AMAQI
23rd Jul 2026296 AMAQI
23rd Jul 2026297 AMAQI
23rd Jul 2026218 AMAQI
23rd Jul 2026299 AMAQI
23rd Jul 20263110 AMAQI
23rd Jul 20264211 AMAQI
23rd Jul 20262912 PMAQI
23rd Jul 2026271 PMAQI
23rd Jul 2026272 PMAQI
23rd Jul 2026293 PMAQI
23rd Jul 2026294 PMAQI
23rd Jul 2026665 PMAQI
23rd Jul 2026296 PMAQI
23rd Jul 2026297 PMAQI
23rd Jul 2026278 PMAQI
23rd Jul 2026389 PMAQI
23rd Jul 20262510 PMAQI
23rd Jul 20264411 PMAQI
24th Jul 20264212 AMAQI
24th Jul 2026401 AMAQI
24th Jul 2026232 AMAQI
24th Jul 2026293 AMAQI
24th Jul 2026294 AMAQI

18°C10/25°C

24th Jul 2026295 AMAQI
24th Jul 2026276 AMAQI
24th Jul 2026257 AMAQI
24th Jul 2026238 AMAQI
24th Jul 2026279 AMAQI
24th Jul 20262510 AMAQI
24th Jul 20262511 AMAQI
24th Jul 20262512 PMAQI
24th Jul 2026321 PMAQI
24th Jul 2026272 PMAQI
24th Jul 2026253 PMAQI
24th Jul 2026254 PMAQI
24th Jul 2026255 PMAQI
24th Jul 2026256 PMAQI
24th Jul 2026257 PMAQI
24th Jul 2026258 PMAQI
24th Jul 2026279 PMAQI
24th Jul 20264010 PMAQI
24th Jul 20265711 PMAQI
25th Jul 20265712 AMAQI
25th Jul 2026581 AMAQI
25th Jul 2026362 AMAQI
25th Jul 2026333 AMAQI
25th Jul 2026294 AMAQI

16°C10/20°C

25th Jul 2026335 AMAQI
25th Jul 2026236 AMAQI
25th Jul 2026217 AMAQI
25th Jul 2026258 AMAQI
25th Jul 2026219 AMAQI
25th Jul 20262010 AMAQI
25th Jul 20261711 AMAQI
25th Jul 20261312 PMAQI
25th Jul 2026181 PMAQI
25th Jul 2026182 PMAQI
25th Jul 2026183 PMAQI
25th Jul 202684 PMAQI
25th Jul 202685 PMAQI
25th Jul 2026146 PMAQI
25th Jul 2026217 PMAQI
25th Jul 2026218 PMAQI
25th Jul 2026239 PMAQI
25th Jul 20262510 PMAQI
25th Jul 20263811 PMAQI
26th Jul 20263612 AMAQI
26th Jul 2026271 AMAQI
26th Jul 2026252 AMAQI
26th Jul 2026253 AMAQI
26th Jul 2026234 AMAQI

16°C8/24°C

26th Jul 2026275 AMAQI
26th Jul 2026366 AMAQI
26th Jul 2026257 AMAQI
26th Jul 2026388 AMAQI
26th Jul 2026299 AMAQI
26th Jul 20262510 AMAQI
26th Jul 20262911 AMAQI
26th Jul 20262112 PMAQI
26th Jul 2026231 PMAQI
26th Jul 2026232 PMAQI
26th Jul 2026273 PMAQI
26th Jul 2026154 PMAQI
26th Jul 2026185 PMAQI
26th Jul 2026216 PMAQI
26th Jul 2026257 PMAQI
26th Jul 2026278 PMAQI
26th Jul 2026339 PMAQI
26th Jul 20263410 PMAQI
26th Jul 20263011 PMAQI
27th Jul 20262912 AMAQI
27th Jul 2026561 AMAQI
27th Jul 2026232 AMAQI
27th Jul 2026493 AMAQI
27th Jul 2026234 AMAQI

20°C11/29°C

27th Jul 2026255 AMAQI
27th Jul 2026256 AMAQI
27th Jul 2026297 AMAQI
27th Jul 2026318 AMAQI
27th Jul 2026339 AMAQI
27th Jul 20264610 AMAQI
27th Jul 20265611 AMAQI
27th Jul 20265312 PMAQI
27th Jul 2026511 PMAQI
27th Jul 2026402 PMAQI
27th Jul 2026483 PMAQI
27th Jul 2026444 PMAQI
27th Jul 2026295 PMAQI
27th Jul 2026296 PMAQI
27th Jul 2026467 PMAQI
27th Jul 2026318 PMAQI
27th Jul 2026509 PMAQI
27th Jul 20265410 PMAQI
27th Jul 20266211 PMAQI
28th Jul 20265512 AMAQI
28th Jul 2026531 AMAQI
28th Jul 2026482 AMAQI
28th Jul 2026333 AMAQI
28th Jul 2026274 AMAQI

21°C16/28°C

28th Jul 2026215 AMAQI
28th Jul 2026386 AMAQI
28th Jul 2026297 AMAQI
28th Jul 2026318 AMAQI
28th Jul 2026339 AMAQI
28th Jul 20262710 AMAQI
28th Jul 20263811 AMAQI
28th Jul 20263012 PMAQI
28th Jul 2026331 PMAQI
28th Jul 2026312 PMAQI
28th Jul 2026273 PMAQI
28th Jul 2026344 PMAQI
28th Jul 2026295 PMAQI
28th Jul 2026296 PMAQI
28th Jul 2026337 PMAQI
28th Jul 2026298 PMAQI
28th Jul 2026299 PMAQI
28th Jul 20263310 PMAQI
28th Jul 20264011 PMAQI
29th Jul 20262312 AMAQI
29th Jul 2026211 AMAQI
29th Jul 2026212 AMAQI
29th Jul 2026383 AMAQI
29th Jul 2026384 AMAQI

20°C13/26°C

29th Jul 2026335 AMAQI
29th Jul 2026296 AMAQI
29th Jul 2026217 AMAQI
29th Jul 2026218 AMAQI
29th Jul 2026279 AMAQI
29th Jul 20262710 AMAQI
29th Jul 20262711 AMAQI
29th Jul 20263112 PMAQI
29th Jul 2026531 PMAQI
29th Jul 2026252 PMAQI
29th Jul 2026443 PMAQI
29th Jul 2026314 PMAQI
29th Jul 2026215 PMAQI
29th Jul 2026496 PMAQI
29th Jul 2026147 PMAQI
29th Jul 2026328 PMAQI
29th Jul 2026259 PMAQI
29th Jul 20262110 PMAQI
29th Jul 20263811 PMAQI
30th Jul 20265512 AMAQI
30th Jul 2026251 AMAQI
30th Jul 2026252 AMAQI
30th Jul 2026273 AMAQI
30th Jul 2026384 AMAQI

21°C13/29°C

30th Jul 2026255 AMAQI
30th Jul 2026256 AMAQI
30th Jul 2026477 AMAQI
30th Jul 2026298 AMAQI
30th Jul 2026339 AMAQI
30th Jul 20263610 AMAQI
30th Jul 20262311 AMAQI
30th Jul 20262512 PMAQI
30th Jul 2026251 PMAQI
30th Jul 2026252 PMAQI
30th Jul 2026253 PMAQI
30th Jul 2026234 PMAQI
30th Jul 2026215 PMAQI
30th Jul 2026216 PMAQI
30th Jul 2026217 PMAQI
30th Jul 2026388 PMAQI
30th Jul 2026309 PMAQI
30th Jul 20262510 PMAQI
30th Jul 20263311 PMAQI
31st Jul 20263012 AMAQI
31st Jul 2026271 AMAQI
31st Jul 2026342 AMAQI
31st Jul 2026233 AMAQI
31st Jul 2026234 AMAQI

22°C14/31°C

31st Jul 2026215 AMAQI
5 AM
31st Jul 2026256 AMAQI
31st Jul 2026257 AMAQI
31st Jul 2026368 AMAQI
31st Jul 2026429 AMAQI
31st Jul 20265310 AMAQI
31st Jul 20265211 AMAQI
31st Jul 20264012 PMAQI
31st Jul 2026251 PMAQI
1 PM
31st Jul 2026292 PMAQI
31st Jul 2026293 PMAQI
31st Jul 2026274 PMAQI
31st Jul 2026235 PMAQI
31st Jul 2026386 PMAQI
31st Jul 2026217 PMAQI
31st Jul 2026238 PMAQI
31st Jul 2026299 PMAQI
9 PM
31st Jul 20265110 PMAQI
31st Jul 20265311 PMAQI
1 AM
4 AM

25°C16/35°C

Day time
Avg. Highest Time
9 AM

38AQI

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

28AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 9 AM to 9 AM (Avg. 38), while the lowest AQI was between 5 PM to 5 PM (Avg. 28).
Night time
Avg. Highest Time
11 PM

42AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
2 AM

34AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 11 PM to 11 PM (Avg. 42), while the lowest AQI was between 2 AM to 2 AM (Avg. 34).

2026 Days Vs Air Quality

Strada Observatorului, Cluj Napoca, Cluj, Romania

2026

40%

83

43%

90

16%

33

1%

3

Total number of days with different AQI categories in last 212 days in 2026 (153 days remaining)

Good
83 Days
Moderate
90 Days
Poor
33 Days
Unhealthy
3 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 40%

Health Risk Level:

Significant

In 2026, 40% of 212 days were within WHO’s safe air quality limits, and 60% exceeded them. The risk of health issues is Significant, especially for those with existing respiratory or heart conditions.

Annual Air Quality Insights

Strada Observatorului, 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
73AQI (US)
2nd January 2026
72AQI (US)
3rd January 2026
60AQI (US)
4th January 2026
91AQI (US)
5th January 2026
89AQI (US)
6th January 2026
110AQI (US)
7th January 2026
72AQI (US)
8th January 2026
83AQI (US)
9th January 2026
85AQI (US)
10th January 2026
110AQI (US)
11th January 2026
67AQI (US)
12th January 2026
118AQI (US)
13th January 2026
104AQI (US)
14th January 2026
123AQI (US)
15th January 2026
143AQI (US)
16th January 2026
108AQI (US)
17th January 2026
75AQI (US)
18th January 2026
136AQI (US)
19th January 2026
138AQI (US)
20th January 2026
156AQI (US)
21st January 2026
157AQI (US)
22nd January 2026
164AQI (US)
23rd January 2026
128AQI (US)
24th January 2026
142AQI (US)
25th January 2026
116AQI (US)
26th January 2026
64AQI (US)
27th January 2026
110AQI (US)
28th January 2026
100AQI (US)
29th January 2026
140AQI (US)
30th January 2026
145AQI (US)
31st January 2026
109AQI (US)
1st February 2026
88AQI (US)
2nd February 2026
96AQI (US)
3rd February 2026
95AQI (US)
4th February 2026
114AQI (US)
5th February 2026
70AQI (US)
6th February 2026
55AQI (US)
7th February 2026
75AQI (US)
8th February 2026
101AQI (US)
9th February 2026
98AQI (US)
10th February 2026
73AQI (US)
11th February 2026
79AQI (US)
12th February 2026
89AQI (US)
13th February 2026
102AQI (US)
14th February 2026
69AQI (US)
15th February 2026
92AQI (US)
16th February 2026
90AQI (US)
17th February 2026
100AQI (US)
18th February 2026
89AQI (US)
19th February 2026
86AQI (US)
20th February 2026
77AQI (US)
21st February 2026
45AQI (US)
22nd February 2026
109AQI (US)
23rd February 2026
108AQI (US)
24th February 2026
82AQI (US)
25th February 2026
40AQI (US)
26th February 2026
54AQI (US)
27th February 2026
106AQI (US)
28th February 2026
124AQI (US)
1st March 2026
112AQI (US)
2nd March 2026
115AQI (US)
3rd March 2026
121AQI (US)
4th March 2026
106AQI (US)
5th March 2026
106AQI (US)
6th March 2026
59AQI (US)
7th March 2026
91AQI (US)
8th March 2026
106AQI (US)
9th March 2026
90AQI (US)
10th March 2026
85AQI (US)
11th March 2026
79AQI (US)
12th March 2026
94AQI (US)
13th March 2026
102AQI (US)
14th March 2026
94AQI (US)
15th March 2026
57AQI (US)
16th March 2026
80AQI (US)
17th March 2026
109AQI (US)
18th March 2026
110AQI (US)
19th March 2026
79AQI (US)
20th March 2026
62AQI (US)
21st March 2026
75AQI (US)
22nd March 2026
61AQI (US)
23rd March 2026
51AQI (US)
24th March 2026
79AQI (US)
25th March 2026
93AQI (US)
26th March 2026
96AQI (US)
27th March 2026
77AQI (US)
28th March 2026
66AQI (US)
29th March 2026
62AQI (US)
30th March 2026
86AQI (US)
31st March 2026
73AQI (US)
1st April 2026
80AQI (US)
2nd April 2026
89AQI (US)
3rd April 2026
118AQI (US)
4th April 2026
78AQI (US)
5th April 2026
69AQI (US)
6th April 2026
68AQI (US)
7th April 2026
41AQI (US)
8th April 2026
64AQI (US)
9th April 2026
61AQI (US)
10th April 2026
69AQI (US)
11th April 2026
71AQI (US)
12th April 2026
80AQI (US)
13th April 2026
89AQI (US)
14th April 2026
56AQI (US)
15th April 2026
84AQI (US)
16th April 2026
74AQI (US)
17th April 2026
18th April 2026
56AQI (US)
19th April 2026
47AQI (US)
20th April 2026
61AQI (US)
21st April 2026
51AQI (US)
22nd April 2026
23rd April 2026
32AQI (US)
24th April 2026
32AQI (US)
25th April 2026
58AQI (US)
26th April 2026
35AQI (US)
27th April 2026
25AQI (US)
28th April 2026
37AQI (US)
29th April 2026
42AQI (US)
30th April 2026
31AQI (US)
1st May 2026
50AQI (US)
2nd May 2026
47AQI (US)
3rd May 2026
41AQI (US)
4th May 2026
35AQI (US)
5th May 2026
32AQI (US)
6th May 2026
48AQI (US)
7th May 2026
71AQI (US)
8th May 2026
58AQI (US)
9th May 2026
10th May 2026
54AQI (US)
11th May 2026
38AQI (US)
12th May 2026
30AQI (US)
13th May 2026
44AQI (US)
14th May 2026
36AQI (US)
15th May 2026
44AQI (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
40AQI (US)
24th May 2026
41AQI (US)
25th May 2026
42AQI (US)
26th May 2026
38AQI (US)
27th May 2026
23AQI (US)
28th May 2026
25AQI (US)
29th May 2026
27AQI (US)
30th May 2026
14AQI (US)
31st May 2026
27AQI (US)
1st June 2026
35AQI (US)
2nd June 2026
36AQI (US)
3rd June 2026
33AQI (US)
4th June 2026
53AQI (US)
5th June 2026
48AQI (US)
6th June 2026
53AQI (US)
7th June 2026
28AQI (US)
8th June 2026
18AQI (US)
9th June 2026
28AQI (US)
10th June 2026
42AQI (US)
11th June 2026
55AQI (US)
12th June 2026
39AQI (US)
13th June 2026
14AQI (US)
14th June 2026
11AQI (US)
15th June 2026
12AQI (US)
16th June 2026
22AQI (US)
17th June 2026
24AQI (US)
18th June 2026
26AQI (US)
19th June 2026
44AQI (US)
20th June 2026
58AQI (US)
21st June 2026
63AQI (US)
22nd June 2026
67AQI (US)
23rd June 2026
46AQI (US)
24th June 2026
41AQI (US)
25th June 2026
54AQI (US)
26th June 2026
40AQI (US)
27th June 2026
30AQI (US)
28th June 2026
72AQI (US)
29th June 2026
83AQI (US)
30th June 2026
88AQI (US)
1st July 2026
45AQI (US)
2nd July 2026
63AQI (US)
3rd July 2026
46AQI (US)
4th July 2026
19AQI (US)
5th July 2026
18AQI (US)
6th July 2026
26AQI (US)
7th July 2026
28AQI (US)
8th July 2026
29AQI (US)
9th July 2026
28AQI (US)
10th July 2026
29AQI (US)
11th July 2026
34AQI (US)
12th July 2026
39AQI (US)
13th July 2026
25AQI (US)
14th July 2026
37AQI (US)
15th July 2026
55AQI (US)
16th July 2026
35AQI (US)
17th July 2026
43AQI (US)
18th July 2026
56AQI (US)
19th July 2026
49AQI (US)
20th July 2026
42AQI (US)
21st July 2026
28AQI (US)
22nd July 2026
31AQI (US)
23rd July 2026
31AQI (US)
24th July 2026
29AQI (US)
25th July 2026
25AQI (US)
26th July 2026
27AQI (US)
27th July 2026
40AQI (US)
28th July 2026
34AQI (US)
29th July 2026
30AQI (US)
30th July 2026
29AQI (US)
31st July 2026
32AQI (US)
1st August 2026
2nd August 2026
3rd August 2026
4th August 2026
5th August 2026
6th August 2026
7th August 2026
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

109AQI (US)

86AQI (US)

86AQI (US)

61AQI (US)

41AQI (US)

42AQI (US)

35AQI (US)

No. of days

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

202666AQI (US)

12
16
3
2
19
7
22
9
9
18
1
24
6
20
10
28
3
83
90
33
3

Highest AQI (US) recorded in

January

109AQI (US)

Lowest AQI (US) recorded in

July

35AQI (US)

202551AQI (US)

31
28
4
27
29
1
31
25
5
31
31
30
7
24
2
26
2
3
20
5
3
193
162
7
3

Highest AQI (US) recorded in

December

87AQI (US)

Lowest AQI (US) recorded in

August

30AQI (US)

202452AQI (US)

3
13
7
8
16
5
12
18
1
28
2
31
28
2
20
11
28
3
3
9
1
2
25
3
31
166
127
17

Highest AQI (US) recorded in

January

78AQI (US)

Lowest AQI (US) recorded in

September

27AQI (US)

202367AQI (US)

3
5
9
2
5
12
2

Highest AQI (US) recorded in

November

67AQI (US)

Lowest AQI (US) recorded in

December

67AQI (US)

202282AQI (US)

1
3
9
14
4
1
1
4
1
10
21
4
2
1

Highest AQI (US) recorded in

December

95AQI (US)

Lowest AQI (US) recorded in

October

63AQI (US)

Most & Least Polluted Years Over the Last 5 Years

Most Polluted Year Recorded
2022(Avg.)
82AQI (US)
Least Polluted Year Recorded
2025(Avg.)
51AQI (US)

Strada Observatorului's annual 2026 AQI (US) (66) shows an average percentage change of 8.8% (worsened AQI (US)) compared to previous years: 2022 (82), 2023 (67), 2024 (52), 2025 (51).