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+
August Air Quality Analysis
Strada Observatorului, Cluj Napoca, Cluj, Romania
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
5th Aug 2024
33AQILowest AQI recorded on
13th Aug 2024
23AQISame Day Analysis (3rd August ):
On this day, AQI across the 2 years varied significantly: 2025 ranks 2nd highest AQI at 29 of Good air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 3rd Aug - 4th Aug 2025
Strada Observatorului, Cluj Napoca, Cluj, Romania
AQI
Day
Night
.
5 AM3rd Aug 2025
9 PM
4 AM4th Aug 2025
Day time
Avg. Highest Time
12PM3rd Aug
30AQI
Avg. Lowest Time
7PM3rd Aug
26AQI
Night time
Avg. Highest Time
3AM4th Aug
35AQI
Avg. Lowest Time
4AM4th Aug
26AQI
In the last 24 hours,
Strada Observatorului's AQI reached its highest point of 35 at 3 AM during the Night, while the lowest point, 26, was recorded at 4 AM during the Night between 3rd Aug and 4th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Strada Observatorului, Cluj Napoca, Cluj, Romania
JulAug
05th - 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 - 01st01st - 02nd02nd - 03rd03rd - 04th04th
Day
Night
5th Jul 2025525 AMAQI
5th Jul 2025446 AMAQI
5th Jul 2025407 AMAQI
5th Jul 2025368 AMAQI
5th Jul 2025339 AMAQI
5th Jul 20253110 AMAQI
5th Jul 20253011 AMAQI
5th Jul 20252812 PMAQI
5th Jul 2025301 PMAQI
5th Jul 2025302 PMAQI
5th Jul 2025303 PMAQI
5th Jul 2025324 PMAQI
5th Jul 2025315 PMAQI
5th Jul 2025306 PMAQI
5th Jul 2025317 PMAQI
5th Jul 2025308 PMAQI
5th Jul 2025309 PMAQI
5th Jul 20253210 PMAQI
5th Jul 20253211 PMAQI
6th Jul 20253412 AMAQI
6th Jul 2025351 AMAQI
6th Jul 2025342 AMAQI
6th Jul 2025333 AMAQI
6th Jul 2025284 AMAQI
22°C14/31°C
6th Jul 2025285 AMAQI
6th Jul 2025266 AMAQI
6th Jul 2025287 AMAQI
6th Jul 2025308 AMAQI
6th Jul 2025309 AMAQI
6th Jul 20252810 AMAQI
6th Jul 20253011 AMAQI
6th Jul 20253012 PMAQI
6th Jul 2025291 PMAQI
6th Jul 2025282 PMAQI
6th Jul 2025303 PMAQI
6th Jul 2025324 PMAQI
6th Jul 2025305 PMAQI
6th Jul 2025306 PMAQI
6th Jul 2025307 PMAQI
6th Jul 2025318 PMAQI
6th Jul 2025319 PMAQI
6th Jul 20253010 PMAQI
6th Jul 20253011 PMAQI
7th Jul 20253012 AMAQI
7th Jul 2025311 AMAQI
7th Jul 2025302 AMAQI
7th Jul 2025343 AMAQI
7th Jul 2025374 AMAQI
24°C13/33°C
7th Jul 2025405 AMAQI
7th Jul 2025446 AMAQI
7th Jul 2025407 AMAQI
7th Jul 2025418 AMAQI
7th Jul 2025449 AMAQI
7th Jul 20254510 AMAQI
7th Jul 20254611 AMAQI
7th Jul 20254512 PMAQI
7th Jul 2025471 PMAQI
7th Jul 2025502 PMAQI
7th Jul 2025403 PMAQI
7th Jul 2025374 PMAQI
7th Jul 2025365 PMAQI
7th Jul 2025356 PMAQI
7th Jul 2025367 PMAQI
7th Jul 2025358 PMAQI
7th Jul 2025359 PMAQI
7th Jul 20253610 PMAQI
7th Jul 20253711 PMAQI
8th Jul 20253712 AMAQI
8th Jul 2025371 AMAQI
8th Jul 2025362 AMAQI
8th Jul 2025493 AMAQI
8th Jul 2025524 AMAQI
25°C18/35°C
8th Jul 2025515 AMAQI
8th Jul 2025526 AMAQI
8th Jul 2025477 AMAQI
8th Jul 2025478 AMAQI
8th Jul 2025509 AMAQI
8th Jul 20255210 AMAQI
8th Jul 20254611 AMAQI
8th Jul 20254012 PMAQI
8th Jul 2025421 PMAQI
8th Jul 2025422 PMAQI
8th Jul 2025433 PMAQI
8th Jul 2025444 PMAQI
8th Jul 2025425 PMAQI
8th Jul 2025426 PMAQI
8th Jul 2025407 PMAQI
8th Jul 2025378 PMAQI
8th Jul 2025359 PMAQI
8th Jul 20253510 PMAQI
8th Jul 20253711 PMAQI
9th Jul 20253812 AMAQI
9th Jul 2025421 AMAQI
9th Jul 2025442 AMAQI
9th Jul 2025293 AMAQI
9th Jul 2025294 AMAQI
23°C14/34°C
9th Jul 2025335 AMAQI
9th Jul 2025346 AMAQI
9th Jul 2025357 AMAQI
9th Jul 2025378 AMAQI
9th Jul 2025389 AMAQI
9th Jul 20253810 AMAQI
9th Jul 20254011 AMAQI
9th Jul 20254012 PMAQI
9th Jul 2025361 PMAQI
9th Jul 2025312 PMAQI
9th Jul 2025323 PMAQI
9th Jul 2025344 PMAQI
9th Jul 2025355 PMAQI
9th Jul 2025356 PMAQI
9th Jul 2025347 PMAQI
9th Jul 2025358 PMAQI
9th Jul 2025369 PMAQI
9th Jul 20253610 PMAQI
9th Jul 20253611 PMAQI
10th Jul 20253512 AMAQI
10th Jul 2025361 AMAQI
10th Jul 2025372 AMAQI
10th Jul 2025223 AMAQI
10th Jul 2025174 AMAQI
16°C13/21°C
10th Jul 2025185 AMAQI
10th Jul 2025236 AMAQI
10th Jul 2025237 AMAQI
10th Jul 2025238 AMAQI
10th Jul 2025249 AMAQI
10th Jul 20252310 AMAQI
10th Jul 20252511 AMAQI
10th Jul 20252812 PMAQI
10th Jul 2025291 PMAQI
10th Jul 2025302 PMAQI
10th Jul 2025283 PMAQI
10th Jul 2025284 PMAQI
10th Jul 2025265 PMAQI
10th Jul 2025266 PMAQI
10th Jul 2025267 PMAQI
10th Jul 2025258 PMAQI
10th Jul 2025269 PMAQI
10th Jul 20252710 PMAQI
10th Jul 20252611 PMAQI
11th Jul 20252712 AMAQI
11th Jul 2025281 AMAQI
11th Jul 2025282 AMAQI
11th Jul 2025223 AMAQI
11th Jul 2025224 AMAQI
14°C12/16°C
11th Jul 2025235 AMAQI
11th Jul 2025246 AMAQI
11th Jul 2025287 AMAQI
11th Jul 2025288 AMAQI
11th Jul 2025299 AMAQI
11th Jul 20252610 AMAQI
11th Jul 20253211 AMAQI
11th Jul 20253012 PMAQI
11th Jul 2025361 PMAQI
11th Jul 2025342 PMAQI
11th Jul 2025273 PMAQI
11th Jul 2025264 PMAQI
11th Jul 2025265 PMAQI
11th Jul 2025266 PMAQI
11th Jul 2025277 PMAQI
11th Jul 2025268 PMAQI
11th Jul 2025279 PMAQI
11th Jul 20252710 PMAQI
11th Jul 20252811 PMAQI
12th Jul 20252712 AMAQI
12th Jul 2025271 AMAQI
12th Jul 2025272 AMAQI
12th Jul 2025293 AMAQI
12th Jul 2025264 AMAQI
16°C12/21°C
12th Jul 2025285 AMAQI
12th Jul 2025256 AMAQI
12th Jul 2025297 AMAQI
12th Jul 2025328 AMAQI
12th Jul 2025319 AMAQI
12th Jul 20253310 AMAQI
12th Jul 20253211 AMAQI
12th Jul 20252812 PMAQI
12th Jul 2025261 PMAQI
12th Jul 2025252 PMAQI
12th Jul 2025273 PMAQI
12th Jul 2025264 PMAQI
12th Jul 2025265 PMAQI
12th Jul 2025266 PMAQI
12th Jul 2025267 PMAQI
12th Jul 2025268 PMAQI
12th Jul 2025279 PMAQI
12th Jul 20252810 PMAQI
12th Jul 20252811 PMAQI
13th Jul 20252812 AMAQI
13th Jul 2025281 AMAQI
13th Jul 2025282 AMAQI
13th Jul 2025273 AMAQI
13th Jul 2025264 AMAQI
17°C10/24°C
13th Jul 2025265 AMAQI
13th Jul 2025266 AMAQI
13th Jul 2025307 AMAQI
13th Jul 2025298 AMAQI
13th Jul 2025329 AMAQI
13th Jul 20253310 AMAQI
13th Jul 20253311 AMAQI
13th Jul 20253112 PMAQI
13th Jul 2025341 PMAQI
13th Jul 2025302 PMAQI
13th Jul 2025283 PMAQI
13th Jul 2025274 PMAQI
13th Jul 2025275 PMAQI
13th Jul 2025276 PMAQI
13th Jul 2025287 PMAQI
13th Jul 2025288 PMAQI
13th Jul 2025279 PMAQI
13th Jul 20252810 PMAQI
13th Jul 20253011 PMAQI
14th Jul 20252812 AMAQI
14th Jul 2025281 AMAQI
14th Jul 2025282 AMAQI
14th Jul 2025383 AMAQI
14th Jul 2025404 AMAQI
20°C12/27°C
14th Jul 2025435 AMAQI
14th Jul 2025426 AMAQI
14th Jul 2025417 AMAQI
14th Jul 2025408 AMAQI
14th Jul 2025419 AMAQI
14th Jul 20254710 AMAQI
14th Jul 20254811 AMAQI
14th Jul 20254412 PMAQI
14th Jul 2025451 PMAQI
14th Jul 2025472 PMAQI
14th Jul 2025393 PMAQI
14th Jul 2025344 PMAQI
14th Jul 2025345 PMAQI
14th Jul 2025376 PMAQI
14th Jul 2025367 PMAQI
14th Jul 2025358 PMAQI
14th Jul 2025349 PMAQI
14th Jul 20253410 PMAQI
14th Jul 20253711 PMAQI
15th Jul 20253712 AMAQI
15th Jul 2025381 AMAQI
15th Jul 2025372 AMAQI
15th Jul 2025443 AMAQI
15th Jul 2025494 AMAQI
22°C16/28°C
15th Jul 2025515 AMAQI
15th Jul 2025486 AMAQI
15th Jul 2025517 AMAQI
15th Jul 2025488 AMAQI
15th Jul 2025529 AMAQI
15th Jul 20254810 AMAQI
15th Jul 20255011 AMAQI
15th Jul 20254612 PMAQI
15th Jul 2025411 PMAQI
15th Jul 2025402 PMAQI
15th Jul 2025393 PMAQI
15th Jul 2025384 PMAQI
15th Jul 2025385 PMAQI
15th Jul 2025356 PMAQI
15th Jul 2025357 PMAQI
15th Jul 2025338 PMAQI
15th Jul 2025359 PMAQI
15th Jul 20253710 PMAQI
15th Jul 20253811 PMAQI
16th Jul 20254212 AMAQI
16th Jul 2025441 AMAQI
16th Jul 2025442 AMAQI
16th Jul 2025463 AMAQI
16th Jul 2025494 AMAQI
21°C16/29°C
16th Jul 2025495 AMAQI
16th Jul 2025486 AMAQI
16th Jul 2025427 AMAQI
16th Jul 2025408 AMAQI
16th Jul 2025429 AMAQI
16th Jul 20254310 AMAQI
16th Jul 20254911 AMAQI
16th Jul 20254312 PMAQI
16th Jul 2025411 PMAQI
16th Jul 2025412 PMAQI
16th Jul 2025363 PMAQI
16th Jul 2025364 PMAQI
16th Jul 2025385 PMAQI
16th Jul 2025376 PMAQI
16th Jul 2025367 PMAQI
16th Jul 2025388 PMAQI
16th Jul 2025409 PMAQI
16th Jul 20253910 PMAQI
16th Jul 20254011 PMAQI
17th Jul 20254112 AMAQI
17th Jul 2025431 AMAQI
17th Jul 2025432 AMAQI
17th Jul 2025433 AMAQI
17th Jul 2025444 AMAQI
20°C15/26°C
17th Jul 2025495 AMAQI
17th Jul 2025386 AMAQI
17th Jul 2025377 AMAQI
17th Jul 2025348 AMAQI
17th Jul 2025369 AMAQI
17th Jul 20253510 AMAQI
17th Jul 20254011 AMAQI
17th Jul 20254012 PMAQI
17th Jul 2025401 PMAQI
17th Jul 2025402 PMAQI
17th Jul 2025353 PMAQI
17th Jul 2025324 PMAQI
17th Jul 2025355 PMAQI
17th Jul 2025336 PMAQI
17th Jul 2025347 PMAQI
17th Jul 2025328 PMAQI
17th Jul 2025349 PMAQI
17th Jul 20253310 PMAQI
17th Jul 20253411 PMAQI
18th Jul 20253312 AMAQI
18th Jul 2025341 AMAQI
18th Jul 2025342 AMAQI
18th Jul 2025183 AMAQI
18th Jul 2025134 AMAQI
17°C12/24°C
18th Jul 2025145 AMAQI
18th Jul 2025166 AMAQI
18th Jul 2025207 AMAQI
18th Jul 2025238 AMAQI
18th Jul 2025249 AMAQI
18th Jul 20252610 AMAQI
18th Jul 20252611 AMAQI
18th Jul 20252712 PMAQI
18th Jul 2025351 PMAQI
18th Jul 2025272 PMAQI
18th Jul 2025263 PMAQI
18th Jul 2025254 PMAQI
18th Jul 2025255 PMAQI
18th Jul 2025256 PMAQI
18th Jul 2025257 PMAQI
18th Jul 2025268 PMAQI
18th Jul 2025259 PMAQI
18th Jul 20252410 PMAQI
18th Jul 20252511 PMAQI
19th Jul 20252512 AMAQI
19th Jul 2025241 AMAQI
19th Jul 2025252 AMAQI
19th Jul 2025193 AMAQI
19th Jul 2025244 AMAQI
15°C11/20°C
19th Jul 2025305 AMAQI
19th Jul 2025306 AMAQI
19th Jul 2025247 AMAQI
19th Jul 2025248 AMAQI
19th Jul 2025269 AMAQI
19th Jul 20252810 AMAQI
19th Jul 20252611 AMAQI
19th Jul 20252412 PMAQI
19th Jul 2025251 PMAQI
19th Jul 2025242 PMAQI
19th Jul 2025243 PMAQI
19th Jul 2025244 PMAQI
19th Jul 2025245 PMAQI
19th Jul 2025236 PMAQI
19th Jul 2025227 PMAQI
19th Jul 2025238 PMAQI
19th Jul 2025249 PMAQI
19th Jul 20252410 PMAQI
19th Jul 20252211 PMAQI
20th Jul 20252412 AMAQI
20th Jul 2025251 AMAQI
20th Jul 2025252 AMAQI
20th Jul 2025243 AMAQI
20th Jul 2025224 AMAQI
18°C11/24°C
20th Jul 2025225 AMAQI
20th Jul 2025206 AMAQI
20th Jul 2025227 AMAQI
20th Jul 2025228 AMAQI
20th Jul 2025229 AMAQI
20th Jul 20252410 AMAQI
20th Jul 20252611 AMAQI
20th Jul 20252612 PMAQI
20th Jul 2025231 PMAQI
20th Jul 2025232 PMAQI
20th Jul 2025223 PMAQI
20th Jul 2025224 PMAQI
20th Jul 2025235 PMAQI
20th Jul 2025226 PMAQI
20th Jul 2025237 PMAQI
20th Jul 2025248 PMAQI
20th Jul 2025249 PMAQI
20th Jul 20252510 PMAQI
20th Jul 20252411 PMAQI
21st Jul 20252412 AMAQI
21st Jul 2025241 AMAQI
21st Jul 2025262 AMAQI
21st Jul 2025493 AMAQI
21st Jul 2025574 AMAQI
21°C14/28°C
21st Jul 2025575 AMAQI
21st Jul 2025566 AMAQI
21st Jul 2025487 AMAQI
21st Jul 2025488 AMAQI
21st Jul 2025459 AMAQI
21st Jul 20254210 AMAQI
21st Jul 20254211 AMAQI
21st Jul 20253812 PMAQI
21st Jul 2025391 PMAQI
21st Jul 2025322 PMAQI
21st Jul 2025353 PMAQI
21st Jul 2025344 PMAQI
21st Jul 2025365 PMAQI
21st Jul 2025366 PMAQI
21st Jul 2025417 PMAQI
21st Jul 2025368 PMAQI
21st Jul 2025379 PMAQI
21st Jul 20253910 PMAQI
21st Jul 20254011 PMAQI
22nd Jul 20254012 AMAQI
22nd Jul 2025421 AMAQI
22nd Jul 2025402 AMAQI
22nd Jul 2025453 AMAQI
22nd Jul 2025504 AMAQI
23°C16/31°C
22nd Jul 2025475 AMAQI
22nd Jul 2025486 AMAQI
22nd Jul 2025407 AMAQI
22nd Jul 2025428 AMAQI
22nd Jul 2025389 AMAQI
22nd Jul 20253410 AMAQI
22nd Jul 20253411 AMAQI
22nd Jul 20253112 PMAQI
22nd Jul 2025281 PMAQI
22nd Jul 2025292 PMAQI
22nd Jul 2025343 PMAQI
22nd Jul 2025374 PMAQI
22nd Jul 2025345 PMAQI
22nd Jul 2025356 PMAQI
22nd Jul 2025387 PMAQI
22nd Jul 2025388 PMAQI
22nd Jul 2025389 PMAQI
22nd Jul 20253510 PMAQI
22nd Jul 20253611 PMAQI
23rd Jul 20254012 AMAQI
23rd Jul 2025431 AMAQI
23rd Jul 2025432 AMAQI
23rd Jul 2025233 AMAQI
23rd Jul 2025164 AMAQI
24°C18/30°C
23rd Jul 2025165 AMAQI
23rd Jul 2025166 AMAQI
23rd Jul 2025247 AMAQI
23rd Jul 2025248 AMAQI
23rd Jul 2025219 AMAQI
23rd Jul 20252210 AMAQI
23rd Jul 20252211 AMAQI
23rd Jul 20252412 PMAQI
23rd Jul 2025231 PMAQI
23rd Jul 2025222 PMAQI
23rd Jul 2025243 PMAQI
23rd Jul 2025244 PMAQI
23rd Jul 2025245 PMAQI
23rd Jul 2025256 PMAQI
23rd Jul 2025257 PMAQI
23rd Jul 2025258 PMAQI
23rd Jul 2025259 PMAQI
23rd Jul 20252710 PMAQI
23rd Jul 20252411 PMAQI
24th Jul 20252512 AMAQI
24th Jul 2025261 AMAQI
24th Jul 2025262 AMAQI
24th Jul 2025203 AMAQI
24th Jul 2025164 AMAQI
23°C15/29°C
24th Jul 2025185 AMAQI
24th Jul 2025166 AMAQI
24th Jul 2025217 AMAQI
24th Jul 2025228 AMAQI
24th Jul 2025239 AMAQI
24th Jul 20252210 AMAQI
24th Jul 20252111 AMAQI
24th Jul 20252012 PMAQI
24th Jul 2025201 PMAQI
24th Jul 2025212 PMAQI
24th Jul 2025203 PMAQI
24th Jul 2025204 PMAQI
24th Jul 2025195 PMAQI
24th Jul 2025206 PMAQI
24th Jul 2025207 PMAQI
24th Jul 2025228 PMAQI
24th Jul 2025229 PMAQI
24th Jul 20252310 PMAQI
24th Jul 20252311 PMAQI
25th Jul 20252312 AMAQI
25th Jul 2025231 AMAQI
25th Jul 2025222 AMAQI
25th Jul 2025413 AMAQI
25th Jul 2025464 AMAQI
24°C17/32°C
25th Jul 2025445 AMAQI
25th Jul 2025426 AMAQI
25th Jul 2025357 AMAQI
25th Jul 2025368 AMAQI
25th Jul 2025369 AMAQI
25th Jul 20253910 AMAQI
25th Jul 20254011 AMAQI
25th Jul 20254412 PMAQI
25th Jul 2025441 PMAQI
25th Jul 2025392 PMAQI
25th Jul 2025333 PMAQI
25th Jul 2025304 PMAQI
25th Jul 2025275 PMAQI
25th Jul 2025266 PMAQI
25th Jul 2025267 PMAQI
25th Jul 2025288 PMAQI
25th Jul 2025289 PMAQI
25th Jul 20253010 PMAQI
25th Jul 20253211 PMAQI
26th Jul 20253312 AMAQI
26th Jul 2025331 AMAQI
26th Jul 2025322 AMAQI
26th Jul 2025363 AMAQI
26th Jul 2025324 AMAQI
26°C18/34°C
26th Jul 2025365 AMAQI
26th Jul 2025396 AMAQI
26th Jul 2025357 AMAQI
26th Jul 2025358 AMAQI
26th Jul 2025379 AMAQI
26th Jul 20254010 AMAQI
26th Jul 20254211 AMAQI
26th Jul 20254312 PMAQI
26th Jul 2025421 PMAQI
26th Jul 2025472 PMAQI
26th Jul 2025363 PMAQI
26th Jul 2025344 PMAQI
26th Jul 2025325 PMAQI
26th Jul 2025326 PMAQI
26th Jul 2025337 PMAQI
26th Jul 2025338 PMAQI
26th Jul 2025329 PMAQI
26th Jul 20253210 PMAQI
26th Jul 20253411 PMAQI
27th Jul 20253612 AMAQI
27th Jul 2025351 AMAQI
27th Jul 2025352 AMAQI
27th Jul 2025433 AMAQI
27th Jul 2025464 AMAQI
25°C19/37°C
27th Jul 2025415 AMAQI
27th Jul 2025416 AMAQI
27th Jul 2025377 AMAQI
27th Jul 2025378 AMAQI
27th Jul 2025339 AMAQI
27th Jul 20253210 AMAQI
27th Jul 20252811 AMAQI
27th Jul 20252812 PMAQI
27th Jul 2025271 PMAQI
27th Jul 2025292 PMAQI
27th Jul 2025303 PMAQI
27th Jul 2025304 PMAQI
27th Jul 2025295 PMAQI
27th Jul 2025296 PMAQI
27th Jul 2025307 PMAQI
27th Jul 2025308 PMAQI
27th Jul 2025309 PMAQI
27th Jul 20252910 PMAQI
27th Jul 20253011 PMAQI
28th Jul 20253012 AMAQI
28th Jul 2025361 AMAQI
28th Jul 2025362 AMAQI
28th Jul 2025203 AMAQI
28th Jul 2025164 AMAQI
20°C17/27°C
28th Jul 2025175 AMAQI
28th Jul 2025196 AMAQI
28th Jul 2025247 AMAQI
28th Jul 2025308 AMAQI
28th Jul 2025329 AMAQI
28th Jul 20253510 AMAQI
28th Jul 20253411 AMAQI
28th Jul 20252912 PMAQI
28th Jul 2025261 PMAQI
28th Jul 2025292 PMAQI
28th Jul 2025253 PMAQI
28th Jul 2025234 PMAQI
28th Jul 2025245 PMAQI
28th Jul 2025226 PMAQI
28th Jul 2025227 PMAQI
28th Jul 2025238 PMAQI
28th Jul 2025249 PMAQI
28th Jul 20252410 PMAQI
28th Jul 20252311 PMAQI
29th Jul 20252512 AMAQI
29th Jul 2025281 AMAQI
29th Jul 2025282 AMAQI
29th Jul 2025223 AMAQI
29th Jul 2025174 AMAQI
20°C14/27°C
29th Jul 2025185 AMAQI
29th Jul 2025176 AMAQI
29th Jul 2025217 AMAQI
29th Jul 2025208 AMAQI
29th Jul 2025229 AMAQI
29th Jul 20252510 AMAQI
29th Jul 20252211 AMAQI
29th Jul 20252212 PMAQI
29th Jul 2025201 PMAQI
29th Jul 2025222 PMAQI
29th Jul 2025193 PMAQI
29th Jul 2025224 PMAQI
29th Jul 2025225 PMAQI
29th Jul 2025206 PMAQI
29th Jul 2025217 PMAQI
29th Jul 2025228 PMAQI
29th Jul 2025219 PMAQI
29th Jul 20252210 PMAQI
29th Jul 20252211 PMAQI
30th Jul 20252212 AMAQI
30th Jul 2025241 AMAQI
30th Jul 2025232 AMAQI
30th Jul 2025213 AMAQI
30th Jul 2025214 AMAQI
19°C14/24°C
30th Jul 2025245 AMAQI
30th Jul 2025256 AMAQI
30th Jul 2025247 AMAQI
30th Jul 2025268 AMAQI
30th Jul 2025289 AMAQI
30th Jul 20252810 AMAQI
30th Jul 20253711 AMAQI
30th Jul 20252812 PMAQI
30th Jul 2025241 PMAQI
30th Jul 2025262 PMAQI
30th Jul 2025213 PMAQI
30th Jul 2025214 PMAQI
30th Jul 2025205 PMAQI
30th Jul 2025216 PMAQI
30th Jul 2025217 PMAQI
30th Jul 2025218 PMAQI
30th Jul 2025219 PMAQI
30th Jul 20252510 PMAQI
30th Jul 20252611 PMAQI
31st Jul 20252612 AMAQI
31st Jul 2025261 AMAQI
31st Jul 2025262 AMAQI
31st Jul 2025263 AMAQI
31st Jul 2025264 AMAQI
17°C14/23°C
31st Jul 2025265 AMAQI
31st Jul 2025296 AMAQI
31st Jul 2025287 AMAQI
31st Jul 2025268 AMAQI
31st Jul 2025289 AMAQI
31st Jul 20252410 AMAQI
31st Jul 20252411 AMAQI
31st Jul 20252212 PMAQI
31st Jul 2025221 PMAQI
31st Jul 2025212 PMAQI
31st Jul 2025243 PMAQI
31st Jul 2025344 PMAQI
31st Jul 2025285 PMAQI
31st Jul 2025306 PMAQI
31st Jul 2025267 PMAQI
31st Jul 2025268 PMAQI
31st Jul 2025259 PMAQI
31st Jul 20252410 PMAQI
31st Jul 20252511 PMAQI
1st Aug 20252512 AMAQI
1st Aug 2025241 AMAQI
1st Aug 2025232 AMAQI
1st Aug 2025253 AMAQI
1st Aug 2025234 AMAQI
19°C13/25°C
1st Aug 2025265 AMAQI
1st Aug 2025266 AMAQI
1st Aug 2025257 AMAQI
1st Aug 2025248 AMAQI
1st Aug 2025239 AMAQI
1st Aug 20252510 AMAQI
1st Aug 20252311 AMAQI
1st Aug 20252312 PMAQI
1st Aug 2025231 PMAQI
1st Aug 2025262 PMAQI
1st Aug 2025253 PMAQI
1st Aug 2025264 PMAQI
1st Aug 2025245 PMAQI
1st Aug 2025266 PMAQI
1st Aug 2025267 PMAQI
1st Aug 2025268 PMAQI
1st Aug 2025259 PMAQI
1st Aug 20252610 PMAQI
1st Aug 20252611 PMAQI
2nd Aug 20252612 AMAQI
2nd Aug 2025261 AMAQI
2nd Aug 2025262 AMAQI
2nd Aug 2025253 AMAQI
2nd Aug 2025294 AMAQI
19°C12/26°C
2nd Aug 2025275 AMAQI
2nd Aug 2025246 AMAQI
2nd Aug 2025267 AMAQI
2nd Aug 2025288 AMAQI
2nd Aug 2025339 AMAQI
2nd Aug 20253310 AMAQI
2nd Aug 20252611 AMAQI
2nd Aug 20252612 PMAQI
2nd Aug 2025261 PMAQI
2nd Aug 2025262 PMAQI
2nd Aug 2025263 PMAQI
2nd Aug 2025274 PMAQI
2nd Aug 2025275 PMAQI
2nd Aug 2025266 PMAQI
2nd Aug 2025287 PMAQI
2nd Aug 2025288 PMAQI
2nd Aug 2025299 PMAQI
2nd Aug 20252810 PMAQI
2nd Aug 20253011 PMAQI
3rd Aug 20252912 AMAQI
3rd Aug 2025281 AMAQI
3rd Aug 2025332 AMAQI
3rd Aug 2025263 AMAQI
3rd Aug 2025264 AMAQI
20°C13/28°C
3rd Aug 2025285 AMAQI
3rd Aug 2025286 AMAQI
3rd Aug 2025267 AMAQI
3rd Aug 2025268 AMAQI
3rd Aug 2025279 AMAQI
3rd Aug 20252910 AMAQI
3rd Aug 20252911 AMAQI
3rd Aug 20253012 PMAQI
3rd Aug 2025261 PMAQI
3rd Aug 2025302 PMAQI
3rd Aug 2025273 PMAQI
3rd Aug 2025264 PMAQI
3rd Aug 2025265 PMAQI
3rd Aug 2025286 PMAQI
3rd Aug 2025267 PMAQI
3rd Aug 2025288 PMAQI
3rd Aug 2025289 PMAQI
3rd Aug 20252810 PMAQI
3rd Aug 20252811 PMAQI
4th Aug 20252712 AMAQI
4th Aug 2025291 AMAQI
4th Aug 2025282 AMAQI
4th Aug 2025353 AMAQI
4th Aug 2025264 AMAQI
20°C15/28°C
4th Aug 2025245 AMAQI
5 AM4th Aug 2025246 AMAQI
4th Aug 2025267 AMAQI
4th Aug 2025258 AMAQI
4th Aug 2025269 AMAQI
1 PM
9 PM
1 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 9 PM
31AQI
17 hours / Day
510 hours / Month
Avg. Lowest Time
5 AM - 9 PM
31AQI
17 hours / Day
510 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 9 PM (Avg. 31), while the lowest AQI was between 5 AM to 9 PM (Avg. 31).
Night time
Avg. Highest Time
12 AM - 4 AM
31AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
12 AM - 11 PM
31AQI
7 hours / Day
210 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 4 AM (Avg. 31), while the lowest AQI was between 12 AM to 11 PM (Avg. 31).
2025 Days Vs Air Quality
Strada Observatorului, Cluj Napoca, Cluj, Romania
2025
57%
123
43%
92
Total number of days with different AQI categories in last 216 days in 2025 (149 days remaining)
Good
123 DaysModerate
92 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 57%
Health Risk Level:
Considerable
In 2025, 57% of 216 days were within WHO’s safe air quality limits, and 43% exceeded them. The risk of health issues is Considerable, with potential for conditions in sensitive individuals.
Annual Air Quality Insights
Strada Observatorului, Cluj Napoca, Cluj, Romania
AQI levels in 2025
AQI
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.
1st January 2025
62AQI
62AQI
2nd January 2025
66AQI
66AQI
3rd January 2025
62AQI
62AQI
4th January 2025
60AQI
60AQI
5th January 2025
60AQI
60AQI
6th January 2025
57AQI
57AQI
7th January 2025
57AQI
57AQI
8th January 2025
58AQI
58AQI
9th January 2025
57AQI
57AQI
10th January 2025
56AQI
56AQI
11th January 2025
54AQI
54AQI
12th January 2025
52AQI
52AQI
13th January 2025
52AQI
52AQI
14th January 2025
55AQI
55AQI
15th January 2025
56AQI
56AQI
16th January 2025
57AQI
57AQI
17th January 2025
57AQI
57AQI
18th January 2025
59AQI
59AQI
19th January 2025
60AQI
60AQI
20th January 2025
60AQI
60AQI
21st January 2025
61AQI
61AQI
22nd January 2025
61AQI
61AQI
23rd January 2025
61AQI
61AQI
24th January 2025
61AQI
61AQI
25th January 2025
61AQI
61AQI
26th January 2025
62AQI
62AQI
27th January 2025
60AQI
60AQI
28th January 2025
60AQI
60AQI
29th January 2025
59AQI
59AQI
30th January 2025
59AQI
59AQI
31st January 2025
59AQI
59AQI
1st February 2025
59AQI
59AQI
2nd February 2025
60AQI
60AQI
3rd February 2025
59AQI
59AQI
4th February 2025
60AQI
60AQI
5th February 2025
61AQI
61AQI
6th February 2025
60AQI
60AQI
7th February 2025
60AQI
60AQI
8th February 2025
61AQI
61AQI
9th February 2025
61AQI
61AQI
10th February 2025
61AQI
61AQI
11th February 2025
61AQI
61AQI
12th February 2025
61AQI
61AQI
13th February 2025
61AQI
61AQI
14th February 2025
62AQI
62AQI
15th February 2025
62AQI
62AQI
16th February 2025
62AQI
62AQI
17th February 2025
63AQI
63AQI
18th February 2025
64AQI
64AQI
19th February 2025
63AQI
63AQI
20th February 2025
62AQI
62AQI
21st February 2025
61AQI
61AQI
22nd February 2025
61AQI
61AQI
23rd February 2025
61AQI
61AQI
24th February 2025
60AQI
60AQI
25th February 2025
60AQI
60AQI
26th February 2025
61AQI
61AQI
27th February 2025
60AQI
60AQI
28th February 2025
61AQI
61AQI
1st March 2025
61AQI
61AQI
2nd March 2025
61AQI
61AQI
3rd March 2025
60AQI
60AQI
4th March 2025
58AQI
58AQI
5th March 2025
58AQI
58AQI
6th March 2025
58AQI
58AQI
7th March 2025
57AQI
57AQI
8th March 2025
57AQI
57AQI
9th March 2025
57AQI
57AQI
10th March 2025
58AQI
58AQI
11th March 2025
58AQI
58AQI
12th March 2025
56AQI
56AQI
13th March 2025
56AQI
56AQI
14th March 2025
55AQI
55AQI
15th March 2025
54AQI
54AQI
16th March 2025
52AQI
52AQI
17th March 2025
51AQI
51AQI
18th March 2025
48AQI
48AQI
19th March 2025
49AQI
49AQI
20th March 2025
50AQI
50AQI
21st March 2025
50AQI
50AQI
22nd March 2025
51AQI
51AQI
23rd March 2025
53AQI
53AQI
24th March 2025
54AQI
54AQI
25th March 2025
54AQI
54AQI
26th March 2025
53AQI
53AQI
27th March 2025
53AQI
53AQI
28th March 2025
52AQI
52AQI
29th March 2025
52AQI
52AQI
30th March 2025
52AQI
52AQI
31st March 2025
51AQI
51AQI
1st April 2025
51AQI
51AQI
2nd April 2025
50AQI
50AQI
3rd April 2025
50AQI
50AQI
4th April 2025
48AQI
48AQI
5th April 2025
48AQI
48AQI
6th April 2025
45AQI
45AQI
7th April 2025
44AQI
44AQI
8th April 2025
43AQI
43AQI
9th April 2025
42AQI
42AQI
10th April 2025
41AQI
41AQI
11th April 2025
41AQI
41AQI
12th April 2025
40AQI
40AQI
13th April 2025
40AQI
40AQI
14th April 2025
37AQI
37AQI
15th April 2025
37AQI
37AQI
16th April 2025
35AQI
35AQI
17th April 2025
36AQI
36AQI
18th April 2025
36AQI
36AQI
19th April 2025
34AQI
34AQI
20th April 2025
41AQI
41AQI
21st April 2025
31AQI
31AQI
22nd April 2025
30AQI
30AQI
23rd April 2025
29AQI
29AQI
24th April 2025
29AQI
29AQI
25th April 2025
29AQI
29AQI
26th April 2025
29AQI
29AQI
27th April 2025
28AQI
28AQI
28th April 2025
29AQI
29AQI
29th April 2025
30AQI
30AQI
30th April 2025
29AQI
29AQI
1st May 2025
31AQI
31AQI
2nd May 2025
34AQI
34AQI
3rd May 2025
41AQI
41AQI
4th May 2025
43AQI
43AQI
5th May 2025
43AQI
43AQI
6th May 2025
42AQI
42AQI
7th May 2025
47AQI
47AQI
8th May 2025
41AQI
41AQI
9th May 2025
43AQI
43AQI
10th May 2025
38AQI
38AQI
11th May 2025
31AQI
31AQI
12th May 2025
42AQI
42AQI
13th May 2025
40AQI
40AQI
14th May 2025
38AQI
38AQI
15th May 2025
40AQI
40AQI
16th May 2025
29AQI
29AQI
17th May 2025
32AQI
32AQI
18th May 2025
27AQI
27AQI
19th May 2025
29AQI
29AQI
20th May 2025
33AQI
33AQI
21st May 2025
35AQI
35AQI
22nd May 2025
43AQI
43AQI
23rd May 2025
44AQI
44AQI
24th May 2025
31AQI
31AQI
25th May 2025
33AQI
33AQI
26th May 2025
26AQI
26AQI
27th May 2025
36AQI
36AQI
28th May 2025
30AQI
30AQI
29th May 2025
37AQI
37AQI
30th May 2025
29AQI
29AQI
31st May 2025
33AQI
33AQI
1st June 2025
34AQI
34AQI
2nd June 2025
37AQI
37AQI
3rd June 2025
41AQI
41AQI
4th June 2025
39AQI
39AQI
5th June 2025
48AQI
48AQI
6th June 2025
56AQI
56AQI
7th June 2025
57AQI
57AQI
8th June 2025
57AQI
57AQI
9th June 2025
49AQI
49AQI
10th June 2025
52AQI
52AQI
11th June 2025
60AQI
60AQI
12th June 2025
48AQI
48AQI
13th June 2025
42AQI
42AQI
14th June 2025
37AQI
37AQI
15th June 2025
39AQI
39AQI
16th June 2025
39AQI
39AQI
17th June 2025
44AQI
44AQI
18th June 2025
45AQI
45AQI
19th June 2025
50AQI
50AQI
20th June 2025
47AQI
47AQI
21st June 2025
38AQI
38AQI
22nd June 2025
40AQI
40AQI
23rd June 2025
37AQI
37AQI
24th June 2025
40AQI
40AQI
25th June 2025
39AQI
39AQI
26th June 2025
37AQI
37AQI
27th June 2025
38AQI
38AQI
28th June 2025
36AQI
36AQI
29th June 2025
32AQI
32AQI
30th June 2025
32AQI
32AQI
1st July 2025
29AQI
29AQI
2nd July 2025
26AQI
26AQI
3rd July 2025
26AQI
26AQI
4th July 2025
28AQI
28AQI
5th July 2025
33AQI
33AQI
6th July 2025
30AQI
30AQI
7th July 2025
37AQI
37AQI
8th July 2025
42AQI
42AQI
9th July 2025
35AQI
35AQI
10th July 2025
27AQI
27AQI
11th July 2025
27AQI
27AQI
12th July 2025
27AQI
27AQI
13th July 2025
28AQI
28AQI
14th July 2025
36AQI
36AQI
15th July 2025
41AQI
41AQI
16th July 2025
42AQI
42AQI
17th July 2025
38AQI
38AQI
18th July 2025
26AQI
26AQI
19th July 2025
24AQI
24AQI
20th July 2025
23AQI
23AQI
21st July 2025
38AQI
38AQI
22nd July 2025
38AQI
38AQI
23rd July 2025
27AQI
27AQI
24th July 2025
22AQI
22AQI
25th July 2025
32AQI
32AQI
26th July 2025
35AQI
35AQI
27th July 2025
33AQI
33AQI
28th July 2025
26AQI
26AQI
29th July 2025
22AQI
22AQI
30th July 2025
23AQI
23AQI
31st July 2025
26AQI
26AQI
1st August 2025
24AQI
24AQI
2nd August 2025
27AQI
27AQI
3rd August 2025
29AQI
29AQI
59AQI
61AQI
54AQI
38AQI
36AQI
43AQI
31AQI
27AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202546AQI
31
28
4
27
29
1
31
25
5
31
3
123
92
Highest AQI recorded in
February61AQI
Lowest AQI recorded in
August27AQI
202452AQI
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 recorded in
January78AQI
Lowest AQI recorded in
September27AQI
202367AQI
3
5
9
2
5
12
2
Highest AQI recorded in
December67AQI
Lowest AQI recorded in
November67AQI
202282AQI
1
3
9
14
4
1
1
4
1
10
21
4
2
1
Highest AQI recorded in
December95AQI
Lowest AQI recorded in
October63AQI
Most & Least Polluted Years Over the Last 4 Years
Most Polluted Year Recorded
2022(Avg.)
82AQILeast Polluted Year Recorded
2025(Avg.)
46AQIStrada Observatorului's annual 2025 AQI (46) shows an average percentage change of -29.5% (improved AQI) compared to previous years: 2022 (82), 2023 (67), 2024 (52).
