Niteroi, Rio de Janeiro, Brazil 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
Niteroi, Rio de Janeiro, Brazil
2024
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
22nd Aug 2025
76AQILowest AQI recorded on
30th Aug 2024
25AQISame Day Analysis (4th August):
On this day, AQI across the 3 years varied significantly: 2026 ranks 2nd highest AQI at 53 of Moderate air quality, showing improvement over 2025 on the same day.
Day & Night AQI Trend: 4th Aug - 5th Aug 2026
Niteroi, Rio de Janeiro, Brazil
AQI
Day
Night
.
6 AM4th Aug 2026
5 PM
5 AM5th Aug 2026
Day time
Avg. Highest Time
10AM4th Aug
66AQI
Avg. Lowest Time
4PM4th Aug
47AQI
Night time
Avg. Highest Time
1AM5th Aug
73AQI
Avg. Lowest Time
10PM4th Aug
41AQI
In the last 24 hours,
Niteroi's AQI reached its highest point of 73 at 1 AM during the Night, while the lowest point, 41, was recorded at 10 PM during the Night between 4th Aug and 5th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Niteroi, Rio de Janeiro, Brazil
JulAug
07th - 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 - 05th05th
Day
Night
7th Jul 2026736 AMAQI
7th Jul 2026327 AMAQI
7th Jul 2026548 AMAQI
7th Jul 2026519 AMAQI
7th Jul 20265810 AMAQI
7th Jul 20265611 AMAQI
7th Jul 20266512 PMAQI
7th Jul 2026681 PMAQI
7th Jul 2026582 PMAQI
7th Jul 2026443 PMAQI
7th Jul 2026404 PMAQI
7th Jul 2026535 PMAQI
7th Jul 2026546 PMAQI
7th Jul 2026527 PMAQI
7th Jul 2026378 PMAQI
7th Jul 2026349 PMAQI
7th Jul 20262310 PMAQI
7th Jul 20261311 PMAQI
8th Jul 20262012 AMAQI
8th Jul 2026241 AMAQI
8th Jul 2026262 AMAQI
8th Jul 2026173 AMAQI
8th Jul 2026214 AMAQI
8th Jul 2026155 AMAQI
20°C17/26°C
8th Jul 2026126 AMAQI
8th Jul 2026177 AMAQI
8th Jul 2026168 AMAQI
8th Jul 202689 AMAQI
8th Jul 20262310 AMAQI
8th Jul 20262911 AMAQI
8th Jul 20262812 PMAQI
8th Jul 2026231 PMAQI
8th Jul 2026172 PMAQI
8th Jul 2026143 PMAQI
8th Jul 2026334 PMAQI
8th Jul 2026225 PMAQI
8th Jul 2026336 PMAQI
8th Jul 2026507 PMAQI
8th Jul 2026368 PMAQI
8th Jul 2026369 PMAQI
8th Jul 20264510 PMAQI
8th Jul 20263911 PMAQI
9th Jul 20263412 AMAQI
9th Jul 2026411 AMAQI
9th Jul 2026392 AMAQI
9th Jul 2026223 AMAQI
9th Jul 2026304 AMAQI
9th Jul 2026365 AMAQI
19°C18/21°C
9th Jul 2026436 AMAQI
9th Jul 2026317 AMAQI
9th Jul 2026308 AMAQI
9th Jul 2026439 AMAQI
9th Jul 20263310 AMAQI
9th Jul 20263511 AMAQI
9th Jul 20262912 PMAQI
9th Jul 2026181 PMAQI
9th Jul 2026292 PMAQI
9th Jul 2026323 PMAQI
9th Jul 2026314 PMAQI
9th Jul 2026315 PMAQI
9th Jul 2026436 PMAQI
9th Jul 2026587 PMAQI
9th Jul 2026468 PMAQI
9th Jul 2026429 PMAQI
9th Jul 20264610 PMAQI
9th Jul 20264411 PMAQI
10th Jul 20264012 AMAQI
10th Jul 2026321 AMAQI
10th Jul 2026362 AMAQI
10th Jul 2026453 AMAQI
10th Jul 2026594 AMAQI
10th Jul 2026265 AMAQI
19°C16/23°C
10th Jul 2026496 AMAQI
10th Jul 2026307 AMAQI
10th Jul 2026548 AMAQI
10th Jul 2026289 AMAQI
10th Jul 20262610 AMAQI
10th Jul 20264011 AMAQI
10th Jul 20266312 PMAQI
10th Jul 2026531 PMAQI
10th Jul 2026422 PMAQI
10th Jul 2026293 PMAQI
10th Jul 2026594 PMAQI
10th Jul 2026375 PMAQI
10th Jul 2026516 PMAQI
10th Jul 2026647 PMAQI
10th Jul 2026618 PMAQI
10th Jul 2026659 PMAQI
10th Jul 20268010 PMAQI
10th Jul 20267011 PMAQI
11th Jul 20266512 AMAQI
11th Jul 2026581 AMAQI
11th Jul 2026672 AMAQI
11th Jul 2026613 AMAQI
11th Jul 2026544 AMAQI
11th Jul 2026495 AMAQI
20°C16/26°C
11th Jul 2026576 AMAQI
11th Jul 2026397 AMAQI
11th Jul 2026478 AMAQI
11th Jul 2026439 AMAQI
11th Jul 20263010 AMAQI
11th Jul 20265211 AMAQI
11th Jul 20265512 PMAQI
11th Jul 2026541 PMAQI
11th Jul 2026412 PMAQI
11th Jul 2026433 PMAQI
11th Jul 2026404 PMAQI
11th Jul 2026425 PMAQI
11th Jul 2026416 PMAQI
11th Jul 2026527 PMAQI
11th Jul 2026808 PMAQI
11th Jul 2026539 PMAQI
11th Jul 20265610 PMAQI
11th Jul 20266211 PMAQI
12th Jul 20267812 AMAQI
12th Jul 2026471 AMAQI
12th Jul 2026472 AMAQI
12th Jul 2026373 AMAQI
12th Jul 2026224 AMAQI
12th Jul 2026175 AMAQI
21°C18/27°C
12th Jul 2026216 AMAQI
12th Jul 2026217 AMAQI
12th Jul 2026138 AMAQI
12th Jul 2026189 AMAQI
12th Jul 20262110 AMAQI
12th Jul 20262711 AMAQI
12th Jul 20262812 PMAQI
12th Jul 2026121 PMAQI
12th Jul 2026322 PMAQI
12th Jul 2026283 PMAQI
12th Jul 2026234 PMAQI
12th Jul 2026225 PMAQI
12th Jul 2026206 PMAQI
12th Jul 2026267 PMAQI
12th Jul 2026278 PMAQI
12th Jul 2026149 PMAQI
12th Jul 20262010 PMAQI
12th Jul 20261511 PMAQI
13th Jul 20262412 AMAQI
13th Jul 2026161 AMAQI
13th Jul 2026122 AMAQI
13th Jul 202683 AMAQI
13th Jul 2026274 AMAQI
13th Jul 2026205 AMAQI
21°C18/28°C
13th Jul 2026126 AMAQI
13th Jul 2026197 AMAQI
13th Jul 2026148 AMAQI
13th Jul 2026149 AMAQI
13th Jul 20261610 AMAQI
13th Jul 20261811 AMAQI
13th Jul 20262812 PMAQI
13th Jul 2026191 PMAQI
13th Jul 2026232 PMAQI
13th Jul 2026223 PMAQI
13th Jul 2026124 PMAQI
13th Jul 2026115 PMAQI
13th Jul 2026426 PMAQI
13th Jul 2026207 PMAQI
13th Jul 2026218 PMAQI
13th Jul 2026119 PMAQI
13th Jul 20262810 PMAQI
13th Jul 20261811 PMAQI
14th Jul 20261612 AMAQI
14th Jul 2026201 AMAQI
14th Jul 2026202 AMAQI
14th Jul 2026203 AMAQI
14th Jul 2026284 AMAQI
14th Jul 2026295 AMAQI
18°C16/19°C
14th Jul 2026306 AMAQI
14th Jul 2026317 AMAQI
14th Jul 2026318 AMAQI
14th Jul 2026259 AMAQI
14th Jul 20263010 AMAQI
14th Jul 20263411 AMAQI
14th Jul 20263512 PMAQI
14th Jul 2026311 PMAQI
14th Jul 2026292 PMAQI
14th Jul 2026333 PMAQI
14th Jul 2026254 PMAQI
14th Jul 2026325 PMAQI
14th Jul 2026296 PMAQI
14th Jul 2026327 PMAQI
14th Jul 2026338 PMAQI
14th Jul 2026309 PMAQI
14th Jul 20263210 PMAQI
14th Jul 20262311 PMAQI
15th Jul 20262112 AMAQI
15th Jul 2026221 AMAQI
15th Jul 2026232 AMAQI
15th Jul 2026203 AMAQI
15th Jul 2026194 AMAQI
15th Jul 2026165 AMAQI
18°C16/21°C
15th Jul 2026216 AMAQI
15th Jul 2026177 AMAQI
15th Jul 2026198 AMAQI
15th Jul 2026229 AMAQI
15th Jul 20262610 AMAQI
15th Jul 20262611 AMAQI
15th Jul 20262812 PMAQI
15th Jul 2026271 PMAQI
15th Jul 2026282 PMAQI
15th Jul 2026283 PMAQI
15th Jul 2026274 PMAQI
15th Jul 2026265 PMAQI
15th Jul 2026276 PMAQI
15th Jul 2026297 PMAQI
15th Jul 2026298 PMAQI
15th Jul 2026259 PMAQI
15th Jul 20263110 PMAQI
15th Jul 20262911 PMAQI
16th Jul 20262712 AMAQI
16th Jul 2026361 AMAQI
16th Jul 2026342 AMAQI
16th Jul 2026363 AMAQI
16th Jul 2026304 AMAQI
16th Jul 2026295 AMAQI
18°C14/23°C
16th Jul 2026266 AMAQI
16th Jul 2026237 AMAQI
16th Jul 2026268 AMAQI
16th Jul 2026269 AMAQI
16th Jul 20263110 AMAQI
16th Jul 20262811 AMAQI
16th Jul 20263012 PMAQI
16th Jul 2026271 PMAQI
16th Jul 2026272 PMAQI
16th Jul 2026283 PMAQI
16th Jul 2026304 PMAQI
16th Jul 2026545 PMAQI
16th Jul 2026226 PMAQI
16th Jul 2026537 PMAQI
16th Jul 2026548 PMAQI
16th Jul 2026429 PMAQI
16th Jul 20265710 PMAQI
16th Jul 20267111 PMAQI
17th Jul 20266612 AMAQI
17th Jul 2026631 AMAQI
17th Jul 2026632 AMAQI
17th Jul 2026543 AMAQI
17th Jul 2026474 AMAQI
17th Jul 2026435 AMAQI
19°C14/25°C
17th Jul 2026416 AMAQI
17th Jul 2026397 AMAQI
17th Jul 2026338 AMAQI
17th Jul 2026239 AMAQI
17th Jul 20263110 AMAQI
17th Jul 20263611 AMAQI
17th Jul 20263112 PMAQI
17th Jul 2026291 PMAQI
17th Jul 2026272 PMAQI
17th Jul 2026313 PMAQI
17th Jul 2026454 PMAQI
17th Jul 2026405 PMAQI
17th Jul 2026276 PMAQI
17th Jul 2026437 PMAQI
17th Jul 2026488 PMAQI
17th Jul 2026459 PMAQI
17th Jul 20264710 PMAQI
17th Jul 20266011 PMAQI
18th Jul 20266612 AMAQI
18th Jul 2026671 AMAQI
18th Jul 2026682 AMAQI
18th Jul 2026553 AMAQI
18th Jul 2026514 AMAQI
18th Jul 2026565 AMAQI
20°C15/27°C
18th Jul 2026396 AMAQI
18th Jul 2026467 AMAQI
18th Jul 2026488 AMAQI
18th Jul 2026289 AMAQI
18th Jul 20263610 AMAQI
18th Jul 20264711 AMAQI
18th Jul 20263412 PMAQI
18th Jul 2026321 PMAQI
18th Jul 2026332 PMAQI
18th Jul 2026333 PMAQI
18th Jul 2026254 PMAQI
18th Jul 2026235 PMAQI
18th Jul 2026286 PMAQI
18th Jul 2026307 PMAQI
18th Jul 2026318 PMAQI
18th Jul 2026329 PMAQI
18th Jul 20264810 PMAQI
18th Jul 20264911 PMAQI
19th Jul 20264112 AMAQI
19th Jul 2026481 AMAQI
19th Jul 2026612 AMAQI
19th Jul 2026543 AMAQI
19th Jul 2026434 AMAQI
19th Jul 2026575 AMAQI
21°C16/27°C
19th Jul 2026516 AMAQI
19th Jul 2026577 AMAQI
19th Jul 2026598 AMAQI
19th Jul 2026569 AMAQI
19th Jul 20265510 AMAQI
19th Jul 20263211 AMAQI
19th Jul 20263112 PMAQI
19th Jul 2026351 PMAQI
19th Jul 2026242 PMAQI
19th Jul 2026243 PMAQI
19th Jul 2026304 PMAQI
19th Jul 2026275 PMAQI
19th Jul 2026246 PMAQI
19th Jul 2026267 PMAQI
19th Jul 2026338 PMAQI
19th Jul 2026419 PMAQI
19th Jul 20263610 PMAQI
19th Jul 20264211 PMAQI
20th Jul 20265612 AMAQI
20th Jul 2026591 AMAQI
20th Jul 2026542 AMAQI
20th Jul 2026433 AMAQI
20th Jul 2026394 AMAQI
20th Jul 2026395 AMAQI
22°C18/29°C
20th Jul 2026396 AMAQI
20th Jul 2026287 AMAQI
20th Jul 2026378 AMAQI
20th Jul 2026379 AMAQI
20th Jul 20262610 AMAQI
20th Jul 20262511 AMAQI
20th Jul 20263112 PMAQI
20th Jul 2026321 PMAQI
20th Jul 2026212 PMAQI
20th Jul 2026233 PMAQI
20th Jul 2026294 PMAQI
20th Jul 2026465 PMAQI
20th Jul 2026256 PMAQI
20th Jul 2026307 PMAQI
20th Jul 2026318 PMAQI
20th Jul 2026269 PMAQI
20th Jul 20262610 PMAQI
20th Jul 20263311 PMAQI
21st Jul 2026411 AMAQI
21st Jul 2026472 AMAQI
21st Jul 2026523 AMAQI
21st Jul 2026414 AMAQI
21st Jul 2026325 AMAQI
23°C18/29°C
21st Jul 2026416 AMAQI
21st Jul 2026447 AMAQI
21st Jul 2026498 AMAQI
21st Jul 2026399 AMAQI
21st Jul 20264210 AMAQI
21st Jul 20264811 AMAQI
21st Jul 20264912 PMAQI
21st Jul 2026441 PMAQI
21st Jul 2026722 PMAQI
21st Jul 2026343 PMAQI
21st Jul 2026314 PMAQI
21st Jul 2026335 PMAQI
21st Jul 2026256 PMAQI
21st Jul 2026307 PMAQI
21st Jul 2026358 PMAQI
21st Jul 2026419 PMAQI
21st Jul 20264310 PMAQI
21st Jul 20264711 PMAQI
22nd Jul 20263012 AMAQI
22nd Jul 2026391 AMAQI
22nd Jul 2026582 AMAQI
22nd Jul 2026573 AMAQI
22nd Jul 2026354 AMAQI
22nd Jul 2026335 AMAQI
23°C19/30°C
22nd Jul 2026386 AMAQI
22nd Jul 2026347 AMAQI
22nd Jul 2026378 AMAQI
22nd Jul 2026579 AMAQI
22nd Jul 20266210 AMAQI
22nd Jul 20266311 AMAQI
22nd Jul 20265812 PMAQI
22nd Jul 2026481 PMAQI
22nd Jul 2026512 PMAQI
22nd Jul 2026443 PMAQI
22nd Jul 2026304 PMAQI
22nd Jul 2026465 PMAQI
22nd Jul 2026396 PMAQI
22nd Jul 2026637 PMAQI
22nd Jul 2026388 PMAQI
22nd Jul 2026279 PMAQI
22nd Jul 20262610 PMAQI
22nd Jul 20262311 PMAQI
23rd Jul 20262412 AMAQI
23rd Jul 2026321 AMAQI
23rd Jul 2026302 AMAQI
23rd Jul 2026313 AMAQI
23rd Jul 2026444 AMAQI
23rd Jul 2026535 AMAQI
24°C20/31°C
23rd Jul 2026296 AMAQI
23rd Jul 2026267 AMAQI
23rd Jul 2026498 AMAQI
23rd Jul 2026309 AMAQI
23rd Jul 20263610 AMAQI
23rd Jul 20263411 AMAQI
23rd Jul 20264912 PMAQI
23rd Jul 2026391 PMAQI
23rd Jul 2026332 PMAQI
23rd Jul 2026493 PMAQI
23rd Jul 2026504 PMAQI
23rd Jul 2026495 PMAQI
23rd Jul 2026546 PMAQI
23rd Jul 2026467 PMAQI
23rd Jul 2026238 PMAQI
23rd Jul 2026299 PMAQI
23rd Jul 20262510 PMAQI
23rd Jul 20262611 PMAQI
24th Jul 20262212 AMAQI
24th Jul 2026261 AMAQI
24th Jul 2026322 AMAQI
24th Jul 2026323 AMAQI
24th Jul 2026364 AMAQI
24th Jul 2026225 AMAQI
22°C19/27°C
24th Jul 2026216 AMAQI
24th Jul 2026257 AMAQI
24th Jul 2026338 AMAQI
24th Jul 2026229 AMAQI
24th Jul 20262510 AMAQI
24th Jul 20263311 AMAQI
24th Jul 20262712 PMAQI
24th Jul 2026331 PMAQI
24th Jul 2026342 PMAQI
24th Jul 2026353 PMAQI
24th Jul 2026284 PMAQI
24th Jul 2026435 PMAQI
24th Jul 2026326 PMAQI
24th Jul 2026417 PMAQI
24th Jul 2026258 PMAQI
24th Jul 2026389 PMAQI
24th Jul 20264810 PMAQI
24th Jul 20264211 PMAQI
25th Jul 20263812 AMAQI
25th Jul 2026371 AMAQI
25th Jul 2026372 AMAQI
25th Jul 2026363 AMAQI
25th Jul 2026244 AMAQI
25th Jul 2026305 AMAQI
20°C18/24°C
25th Jul 2026386 AMAQI
25th Jul 2026357 AMAQI
25th Jul 2026318 AMAQI
25th Jul 2026469 AMAQI
25th Jul 20262210 AMAQI
25th Jul 20263311 AMAQI
25th Jul 20263412 PMAQI
25th Jul 2026361 PMAQI
25th Jul 2026322 PMAQI
25th Jul 2026413 PMAQI
25th Jul 2026324 PMAQI
25th Jul 2026365 PMAQI
25th Jul 2026236 PMAQI
25th Jul 2026317 PMAQI
25th Jul 2026258 PMAQI
25th Jul 2026259 PMAQI
25th Jul 20262710 PMAQI
25th Jul 20262111 PMAQI
26th Jul 20262712 AMAQI
26th Jul 2026261 AMAQI
26th Jul 2026342 AMAQI
26th Jul 2026243 AMAQI
26th Jul 2026394 AMAQI
26th Jul 2026375 AMAQI
21°C18/25°C
26th Jul 2026216 AMAQI
26th Jul 2026327 AMAQI
26th Jul 2026358 AMAQI
26th Jul 2026229 AMAQI
26th Jul 20262610 AMAQI
26th Jul 20262411 AMAQI
26th Jul 20263212 PMAQI
26th Jul 2026401 PMAQI
26th Jul 2026312 PMAQI
26th Jul 2026263 PMAQI
26th Jul 2026214 PMAQI
26th Jul 2026365 PMAQI
26th Jul 2026466 PMAQI
26th Jul 2026467 PMAQI
26th Jul 2026378 PMAQI
26th Jul 2026469 PMAQI
26th Jul 20263910 PMAQI
26th Jul 20265311 PMAQI
27th Jul 20264812 AMAQI
27th Jul 2026511 AMAQI
27th Jul 2026582 AMAQI
27th Jul 2026483 AMAQI
27th Jul 2026574 AMAQI
27th Jul 2026585 AMAQI
20°C17/24°C
27th Jul 2026476 AMAQI
27th Jul 2026497 AMAQI
27th Jul 2026498 AMAQI
27th Jul 2026569 AMAQI
27th Jul 20265610 AMAQI
27th Jul 20264811 AMAQI
27th Jul 20264612 PMAQI
27th Jul 2026531 PMAQI
27th Jul 2026502 PMAQI
27th Jul 2026393 PMAQI
27th Jul 2026274 PMAQI
27th Jul 2026265 PMAQI
27th Jul 2026286 PMAQI
27th Jul 2026467 PMAQI
27th Jul 2026638 PMAQI
27th Jul 2026399 PMAQI
27th Jul 20264210 PMAQI
27th Jul 20266511 PMAQI
28th Jul 20266012 AMAQI
28th Jul 2026611 AMAQI
28th Jul 2026612 AMAQI
28th Jul 2026553 AMAQI
28th Jul 2026724 AMAQI
28th Jul 2026495 AMAQI
21°C16/27°C
28th Jul 2026466 AMAQI
28th Jul 2026547 AMAQI
28th Jul 2026468 AMAQI
28th Jul 2026409 AMAQI
28th Jul 20264110 AMAQI
28th Jul 20263711 AMAQI
28th Jul 20263412 PMAQI
28th Jul 2026331 PMAQI
28th Jul 2026292 PMAQI
28th Jul 2026433 PMAQI
28th Jul 2026234 PMAQI
28th Jul 2026265 PMAQI
28th Jul 2026256 PMAQI
28th Jul 2026307 PMAQI
28th Jul 2026558 PMAQI
28th Jul 2026599 PMAQI
28th Jul 20264210 PMAQI
28th Jul 20266511 PMAQI
29th Jul 20266312 AMAQI
29th Jul 2026751 AMAQI
29th Jul 2026742 AMAQI
29th Jul 2026723 AMAQI
29th Jul 2026604 AMAQI
29th Jul 2026615 AMAQI
23°C18/30°C
29th Jul 2026636 AMAQI
29th Jul 2026687 AMAQI
29th Jul 2026668 AMAQI
29th Jul 2026659 AMAQI
29th Jul 20265310 AMAQI
29th Jul 20264911 AMAQI
29th Jul 20265212 PMAQI
29th Jul 2026431 PMAQI
29th Jul 2026382 PMAQI
29th Jul 2026313 PMAQI
29th Jul 2026294 PMAQI
29th Jul 2026285 PMAQI
29th Jul 2026326 PMAQI
29th Jul 2026267 PMAQI
29th Jul 2026418 PMAQI
29th Jul 2026409 PMAQI
29th Jul 20263310 PMAQI
29th Jul 20262411 PMAQI
30th Jul 20262512 AMAQI
30th Jul 2026251 AMAQI
30th Jul 2026292 AMAQI
30th Jul 2026343 AMAQI
30th Jul 2026484 AMAQI
30th Jul 2026435 AMAQI
25°C20/32°C
30th Jul 2026406 AMAQI
30th Jul 2026417 AMAQI
30th Jul 2026528 AMAQI
30th Jul 2026549 AMAQI
30th Jul 20263910 AMAQI
30th Jul 20262611 AMAQI
30th Jul 20263212 PMAQI
30th Jul 2026311 PMAQI
30th Jul 2026312 PMAQI
30th Jul 2026263 PMAQI
30th Jul 2026284 PMAQI
30th Jul 2026295 PMAQI
30th Jul 2026406 PMAQI
30th Jul 2026457 PMAQI
30th Jul 2026418 PMAQI
30th Jul 2026549 PMAQI
30th Jul 20264310 PMAQI
30th Jul 20262211 PMAQI
31st Jul 20262212 AMAQI
31st Jul 2026241 AMAQI
31st Jul 2026302 AMAQI
31st Jul 2026283 AMAQI
31st Jul 2026264 AMAQI
31st Jul 2026315 AMAQI
22°C20/26°C
31st Jul 2026256 AMAQI
31st Jul 2026257 AMAQI
31st Jul 2026328 AMAQI
31st Jul 2026509 AMAQI
31st Jul 20263810 AMAQI
31st Jul 20263911 AMAQI
31st Jul 20263812 PMAQI
31st Jul 2026351 PMAQI
31st Jul 2026282 PMAQI
31st Jul 2026243 PMAQI
31st Jul 2026244 PMAQI
31st Jul 2026275 PMAQI
31st Jul 2026266 PMAQI
31st Jul 2026477 PMAQI
31st Jul 2026518 PMAQI
31st Jul 2026499 PMAQI
31st Jul 20263010 PMAQI
31st Jul 20263411 PMAQI
1st Aug 20263112 AMAQI
1st Aug 2026411 AMAQI
1st Aug 2026542 AMAQI
1st Aug 2026533 AMAQI
1st Aug 2026304 AMAQI
1st Aug 2026315 AMAQI
21°C18/26°C
1st Aug 2026416 AMAQI
1st Aug 2026537 AMAQI
1st Aug 2026528 AMAQI
1st Aug 2026499 AMAQI
1st Aug 20263510 AMAQI
1st Aug 20264311 AMAQI
1st Aug 20264512 PMAQI
1st Aug 2026381 PMAQI
1st Aug 2026332 PMAQI
1st Aug 2026343 PMAQI
1st Aug 2026284 PMAQI
1st Aug 2026305 PMAQI
1st Aug 2026436 PMAQI
1st Aug 2026657 PMAQI
1st Aug 2026638 PMAQI
1st Aug 2026469 PMAQI
1st Aug 20266310 PMAQI
1st Aug 20265711 PMAQI
2nd Aug 20266212 AMAQI
2nd Aug 2026691 AMAQI
2nd Aug 2026662 AMAQI
2nd Aug 2026583 AMAQI
2nd Aug 2026534 AMAQI
2nd Aug 2026545 AMAQI
21°C16/27°C
2nd Aug 2026406 AMAQI
2nd Aug 2026307 AMAQI
2nd Aug 2026418 AMAQI
2nd Aug 2026409 AMAQI
2nd Aug 20262610 AMAQI
2nd Aug 20262711 AMAQI
2nd Aug 20263212 PMAQI
2nd Aug 2026321 PMAQI
2nd Aug 2026302 PMAQI
2nd Aug 2026403 PMAQI
2nd Aug 2026274 PMAQI
2nd Aug 2026435 PMAQI
2nd Aug 2026266 PMAQI
2nd Aug 2026497 PMAQI
2nd Aug 2026658 PMAQI
2nd Aug 2026649 PMAQI
2nd Aug 20266210 PMAQI
2nd Aug 20264311 PMAQI
3rd Aug 20263412 AMAQI
3rd Aug 2026461 AMAQI
3rd Aug 2026542 AMAQI
3rd Aug 2026633 AMAQI
3rd Aug 2026514 AMAQI
3rd Aug 2026455 AMAQI
22°C17/29°C
3rd Aug 2026436 AMAQI
3rd Aug 2026397 AMAQI
3rd Aug 2026318 AMAQI
3rd Aug 2026389 AMAQI
3rd Aug 20263810 AMAQI
3rd Aug 20263711 AMAQI
3rd Aug 20264612 PMAQI
3rd Aug 2026511 PMAQI
3rd Aug 2026542 PMAQI
3rd Aug 2026543 PMAQI
3rd Aug 2026414 PMAQI
3rd Aug 2026315 PMAQI
3rd Aug 2026416 PMAQI
3rd Aug 2026427 PMAQI
3rd Aug 2026578 PMAQI
3rd Aug 2026539 PMAQI
3rd Aug 20264410 PMAQI
3rd Aug 20263611 PMAQI
4th Aug 20263412 AMAQI
4th Aug 2026411 AMAQI
4th Aug 2026532 AMAQI
4th Aug 2026533 AMAQI
4th Aug 2026524 AMAQI
4th Aug 2026565 AMAQI
22°C18/27°C
4th Aug 2026526 AMAQI
4th Aug 2026497 AMAQI
4th Aug 2026518 AMAQI
4th Aug 2026559 AMAQI
4th Aug 20266610 AMAQI
4th Aug 20266411 AMAQI
4th Aug 20266412 PMAQI
4th Aug 2026631 PMAQI
4th Aug 2026572 PMAQI
4th Aug 2026583 PMAQI
4th Aug 2026474 PMAQI
4th Aug 2026495 PMAQI
4th Aug 2026496 PMAQI
4th Aug 2026517 PMAQI
4th Aug 2026548 PMAQI
4th Aug 2026539 PMAQI
4th Aug 20264110 PMAQI
4th Aug 20266111 PMAQI
5th Aug 20266812 AMAQI
5th Aug 2026731 AMAQI
5th Aug 2026642 AMAQI
5th Aug 2026623 AMAQI
5th Aug 2026704 AMAQI
5th Aug 2026675 AMAQI
23°C18/29°C
5th Aug 2026566 AMAQI
6 AM5th Aug 2026587 AMAQI
5th Aug 2026538 AMAQI
5th Aug 2026579 AMAQI
5th Aug 20265310 AMAQI
5th Aug 20264111 AMAQI
11 AM5th Aug 20265012 PMAQI
5th Aug 2026561 PMAQI
5th Aug 2026422 PMAQI
5th Aug 2026343 PMAQI
5th Aug 2026344 PMAQI
5th Aug 2026315 PMAQI
5 PM5th Aug 2026326 PMAQI
5th Aug 2026357 PMAQI
5th Aug 2026548 PMAQI
5th Aug 2026559 PMAQI
5th Aug 20265310 PMAQI
5th Aug 20266611 PMAQI
11 PM5 AM
25°C20/31°C
Day time
Avg. Highest Time
8 AM
40AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
4 PM
32AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 8 AM to 8 AM (Avg. 40), while the lowest AQI was between 4 PM to 4 PM (Avg. 32).
Night time
Avg. Highest Time
2 AM
46AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
6 PM
34AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 2 AM to 2 AM (Avg. 46), while the lowest AQI was between 6 PM to 6 PM (Avg. 34).
2026 Days Vs Air Quality
Niteroi, Rio de Janeiro, Brazil
2026
80%
171
19%
41
0.4%
1
Total number of days with different AQI categories in last 217 days in 2026 (148 days remaining)
Good
171 DaysModerate
41 DaysPoor
1 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 80%
Health Risk Level:
Low
In 2026, 80% of 217 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.
Annual Air Quality Insights
Niteroi, Rio de Janeiro, Brazil
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
57AQI (US)
57AQI (US)
2nd January 2026
53AQI (US)
53AQI (US)
3rd January 2026
46AQI (US)
46AQI (US)
4th January 2026
46AQI (US)
46AQI (US)
5th January 2026
38AQI (US)
38AQI (US)
6th January 2026
45AQI (US)
45AQI (US)
7th January 2026
55AQI (US)
55AQI (US)
8th January 2026
53AQI (US)
53AQI (US)
9th January 2026
70AQI (US)
70AQI (US)
10th January 2026
70AQI (US)
70AQI (US)
11th January 2026
72AQI (US)
72AQI (US)
12th January 2026
65AQI (US)
65AQI (US)
13th January 2026
59AQI (US)
59AQI (US)
14th January 2026
53AQI (US)
53AQI (US)
15th January 2026
55AQI (US)
55AQI (US)
16th January 2026
58AQI (US)
58AQI (US)
17th January 2026
55AQI (US)
55AQI (US)
18th January 2026
54AQI (US)
54AQI (US)
19th January 2026
50AQI (US)
50AQI (US)
20th January 2026
49AQI (US)
49AQI (US)
21st January 2026
44AQI (US)
44AQI (US)
22nd January 2026
51AQI (US)
51AQI (US)
23rd January 2026
53AQI (US)
53AQI (US)
24th January 2026
47AQI (US)
47AQI (US)
25th January 2026
50AQI (US)
50AQI (US)
26th January 2026
48AQI (US)
48AQI (US)
27th January 2026
53AQI (US)
53AQI (US)
28th January 2026
53AQI (US)
53AQI (US)
29th January 2026
47AQI (US)
47AQI (US)
30th January 2026
49AQI (US)
49AQI (US)
31st January 2026
47AQI (US)
47AQI (US)
1st February 2026
46AQI (US)
46AQI (US)
2nd February 2026
54AQI (US)
54AQI (US)
3rd February 2026
52AQI (US)
52AQI (US)
4th February 2026
51AQI (US)
51AQI (US)
5th February 2026
49AQI (US)
49AQI (US)
6th February 2026
46AQI (US)
46AQI (US)
7th February 2026
46AQI (US)
46AQI (US)
8th February 2026
49AQI (US)
49AQI (US)
9th February 2026
47AQI (US)
47AQI (US)
10th February 2026
43AQI (US)
43AQI (US)
11th February 2026
45AQI (US)
45AQI (US)
12th February 2026
46AQI (US)
46AQI (US)
13th February 2026
53AQI (US)
53AQI (US)
14th February 2026
53AQI (US)
53AQI (US)
15th February 2026
45AQI (US)
45AQI (US)
16th February 2026
49AQI (US)
49AQI (US)
17th February 2026
55AQI (US)
55AQI (US)
18th February 2026
51AQI (US)
51AQI (US)
19th February 2026
50AQI (US)
50AQI (US)
20th February 2026
51AQI (US)
51AQI (US)
21st February 2026
46AQI (US)
46AQI (US)
22nd February 2026
35AQI (US)
35AQI (US)
23rd February 2026
40AQI (US)
40AQI (US)
24th February 2026
47AQI (US)
47AQI (US)
25th February 2026
44AQI (US)
44AQI (US)
26th February 2026
39AQI (US)
39AQI (US)
27th February 2026
32AQI (US)
32AQI (US)
28th February 2026
32AQI (US)
32AQI (US)
1st March 2026
40AQI (US)
40AQI (US)
2nd March 2026
47AQI (US)
47AQI (US)
3rd March 2026
46AQI (US)
46AQI (US)
4th March 2026
48AQI (US)
48AQI (US)
5th March 2026
43AQI (US)
43AQI (US)
6th March 2026
40AQI (US)
40AQI (US)
7th March 2026
38AQI (US)
38AQI (US)
8th March 2026
36AQI (US)
36AQI (US)
9th March 2026
39AQI (US)
39AQI (US)
10th March 2026
40AQI (US)
40AQI (US)
11th March 2026
44AQI (US)
44AQI (US)
12th March 2026
42AQI (US)
42AQI (US)
13th March 2026
37AQI (US)
37AQI (US)
14th March 2026
39AQI (US)
39AQI (US)
15th March 2026
48AQI (US)
48AQI (US)
16th March 2026
44AQI (US)
44AQI (US)
17th March 2026
39AQI (US)
39AQI (US)
18th March 2026
56AQI (US)
56AQI (US)
19th March 2026
55AQI (US)
55AQI (US)
20th March 2026
45AQI (US)
45AQI (US)
21st March 2026
50AQI (US)
50AQI (US)
22nd March 2026
47AQI (US)
47AQI (US)
23rd March 2026
44AQI (US)
44AQI (US)
24th March 2026
37AQI (US)
37AQI (US)
25th March 2026
39AQI (US)
39AQI (US)
26th March 2026
42AQI (US)
42AQI (US)
27th March 2026
44AQI (US)
44AQI (US)
28th March 2026
37AQI (US)
37AQI (US)
29th March 2026
43AQI (US)
43AQI (US)
30th March 2026
48AQI (US)
48AQI (US)
31st March 2026
33AQI (US)
33AQI (US)
1st April 2026
35AQI (US)
35AQI (US)
2nd April 2026
36AQI (US)
36AQI (US)
3rd April 2026
30AQI (US)
30AQI (US)
4th April 2026
31AQI (US)
31AQI (US)
5th April 2026
35AQI (US)
35AQI (US)
6th April 2026
40AQI (US)
40AQI (US)
7th April 2026
37AQI (US)
37AQI (US)
8th April 2026
37AQI (US)
37AQI (US)
9th April 2026
30AQI (US)
30AQI (US)
10th April 2026
35AQI (US)
35AQI (US)
11th April 2026
36AQI (US)
36AQI (US)
12th April 2026
34AQI (US)
34AQI (US)
13th April 2026
43AQI (US)
43AQI (US)
14th April 2026
46AQI (US)
46AQI (US)
15th April 2026
38AQI (US)
38AQI (US)
16th April 2026
37AQI (US)
37AQI (US)
17th April 2026
18th April 2026
114AQI (US)
114AQI (US)
19th April 2026
95AQI (US)
95AQI (US)
20th April 2026
59AQI (US)
59AQI (US)
21st April 2026
37AQI (US)
37AQI (US)
22nd April 2026
23rd April 2026
38AQI (US)
38AQI (US)
24th April 2026
41AQI (US)
41AQI (US)
25th April 2026
45AQI (US)
45AQI (US)
26th April 2026
42AQI (US)
42AQI (US)
27th April 2026
37AQI (US)
37AQI (US)
28th April 2026
33AQI (US)
33AQI (US)
29th April 2026
31AQI (US)
31AQI (US)
30th April 2026
30AQI (US)
30AQI (US)
1st May 2026
33AQI (US)
33AQI (US)
2nd May 2026
34AQI (US)
34AQI (US)
3rd May 2026
25AQI (US)
25AQI (US)
4th May 2026
29AQI (US)
29AQI (US)
5th May 2026
41AQI (US)
41AQI (US)
6th May 2026
46AQI (US)
46AQI (US)
7th May 2026
42AQI (US)
42AQI (US)
8th May 2026
30AQI (US)
30AQI (US)
9th May 2026
10th May 2026
34AQI (US)
34AQI (US)
11th May 2026
42AQI (US)
42AQI (US)
12th May 2026
42AQI (US)
42AQI (US)
13th May 2026
54AQI (US)
54AQI (US)
14th May 2026
54AQI (US)
54AQI (US)
15th May 2026
62AQI (US)
62AQI (US)
16th May 2026
55AQI (US)
55AQI (US)
17th May 2026
42AQI (US)
42AQI (US)
18th May 2026
39AQI (US)
39AQI (US)
19th May 2026
48AQI (US)
48AQI (US)
20th May 2026
48AQI (US)
48AQI (US)
21st May 2026
40AQI (US)
40AQI (US)
22nd May 2026
51AQI (US)
51AQI (US)
23rd May 2026
62AQI (US)
62AQI (US)
24th May 2026
59AQI (US)
59AQI (US)
25th May 2026
74AQI (US)
74AQI (US)
26th May 2026
46AQI (US)
46AQI (US)
27th May 2026
29AQI (US)
29AQI (US)
28th May 2026
21AQI (US)
21AQI (US)
29th May 2026
32AQI (US)
32AQI (US)
30th May 2026
29AQI (US)
29AQI (US)
31st May 2026
18AQI (US)
18AQI (US)
1st June 2026
25AQI (US)
25AQI (US)
2nd June 2026
23AQI (US)
23AQI (US)
3rd June 2026
20AQI (US)
20AQI (US)
4th June 2026
14AQI (US)
14AQI (US)
5th June 2026
17AQI (US)
17AQI (US)
6th June 2026
23AQI (US)
23AQI (US)
7th June 2026
40AQI (US)
40AQI (US)
8th June 2026
41AQI (US)
41AQI (US)
9th June 2026
50AQI (US)
50AQI (US)
10th June 2026
55AQI (US)
55AQI (US)
11th June 2026
39AQI (US)
39AQI (US)
12th June 2026
30AQI (US)
30AQI (US)
13th June 2026
23AQI (US)
23AQI (US)
14th June 2026
22AQI (US)
22AQI (US)
15th June 2026
21AQI (US)
21AQI (US)
16th June 2026
18AQI (US)
18AQI (US)
17th June 2026
25AQI (US)
25AQI (US)
18th June 2026
27AQI (US)
27AQI (US)
19th June 2026
25AQI (US)
25AQI (US)
20th June 2026
38AQI (US)
38AQI (US)
21st June 2026
27AQI (US)
27AQI (US)
22nd June 2026
32AQI (US)
32AQI (US)
23rd June 2026
39AQI (US)
39AQI (US)
24th June 2026
20AQI (US)
20AQI (US)
25th June 2026
47AQI (US)
47AQI (US)
26th June 2026
38AQI (US)
38AQI (US)
27th June 2026
28AQI (US)
28AQI (US)
28th June 2026
40AQI (US)
40AQI (US)
29th June 2026
32AQI (US)
32AQI (US)
30th June 2026
28AQI (US)
28AQI (US)
1st July 2026
32AQI (US)
32AQI (US)
2nd July 2026
46AQI (US)
46AQI (US)
3rd July 2026
41AQI (US)
41AQI (US)
4th July 2026
31AQI (US)
31AQI (US)
5th July 2026
26AQI (US)
26AQI (US)
6th July 2026
26AQI (US)
26AQI (US)
7th July 2026
47AQI (US)
47AQI (US)
8th July 2026
25AQI (US)
25AQI (US)
9th July 2026
36AQI (US)
36AQI (US)
10th July 2026
47AQI (US)
47AQI (US)
11th July 2026
52AQI (US)
52AQI (US)
12th July 2026
27AQI (US)
27AQI (US)
13th July 2026
19AQI (US)
19AQI (US)
14th July 2026
28AQI (US)
28AQI (US)
15th July 2026
24AQI (US)
24AQI (US)
16th July 2026
35AQI (US)
35AQI (US)
17th July 2026
42AQI (US)
42AQI (US)
18th July 2026
42AQI (US)
42AQI (US)
19th July 2026
41AQI (US)
41AQI (US)
20th July 2026
35AQI (US)
35AQI (US)
21st July 2026
42AQI (US)
42AQI (US)
22nd July 2026
43AQI (US)
43AQI (US)
23rd July 2026
37AQI (US)
37AQI (US)
24th July 2026
32AQI (US)
32AQI (US)
25th July 2026
32AQI (US)
32AQI (US)
26th July 2026
33AQI (US)
33AQI (US)
27th July 2026
48AQI (US)
48AQI (US)
28th July 2026
45AQI (US)
45AQI (US)
29th July 2026
49AQI (US)
49AQI (US)
30th July 2026
37AQI (US)
37AQI (US)
31st July 2026
33AQI (US)
33AQI (US)
1st August 2026
44AQI (US)
44AQI (US)
2nd August 2026
45AQI (US)
45AQI (US)
3rd August 2026
44AQI (US)
44AQI (US)
4th August 2026
53AQI (US)
53AQI (US)
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
53AQI (US)
46AQI (US)
43AQI (US)
42AQI (US)
42AQI (US)
30AQI (US)
37AQI (US)
47AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202642AQI (US)
13
18
20
8
29
2
25
2
1
22
8
29
1
30
1
3
1
171
41
1
Highest AQI (US) recorded in
January53AQI (US)
Lowest AQI (US) recorded in
June30AQI (US)
202552AQI (US)
31
28
19
12
30
31
30
17
14
10
21
22
8
31
1
29
2
29
162
203
Highest AQI (US) recorded in
February67AQI (US)
Lowest AQI (US) recorded in
May31AQI (US)
202446AQI (US)
16
1
1
1
10
2
8
22
12
19
24
7
14
11
4
27
4
22
8
31
135
105
4
Highest AQI (US) recorded in
September66AQI (US)
Lowest AQI (US) recorded in
March25AQI (US)
202328AQI (US)
2
1
31
33
1
Highest AQI (US) recorded in
November35AQI (US)
Lowest AQI (US) recorded in
December28AQI (US)
202231AQI (US)
7
12
16
8
43
Highest AQI (US) recorded in
October35AQI (US)
Lowest AQI (US) recorded in
December25AQI (US)
Most & Least Polluted Years Over the Last 5 Years
Most Polluted Year Recorded
2025(Avg.)
52AQI (US)Least Polluted Year Recorded
2023(Avg.)
28AQI (US)Niteroi's annual 2026 AQI (US) (42) shows an average percentage change of 14.3% (worsened AQI (US)) compared to previous years: 2022 (31), 2023 (28), 2024 (46), 2025 (52).
