Porto Alegre, Rio Grande do Sul, 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
Porto Alegre, Rio Grande do Sul, Brazil
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
17th Aug 2024
60AQILowest AQI recorded on
8th Aug 2023
1AQISame Day Analysis (1st August ):
On this day, AQI across the 3 years varied significantly: 2025 ranks 1st highest AQI at 56 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 1st Aug - 2nd Aug 2025
Porto Alegre, Rio Grande do Sul, Brazil
AQI
Day
Night
.
7 AM1st Aug 2025
5 PM
6 AM2nd Aug 2025
Day time
Avg. Highest Time
7AM1st Aug
58AQI
Avg. Lowest Time
9AM1st Aug
41AQI
Night time
Avg. Highest Time
6AM2nd Aug
66AQI
Avg. Lowest Time
10PM1st Aug
50AQI
In the last 24 hours,
Porto Alegre's AQI reached its highest point of 66 at 6 AM during the Night, while the lowest point, 41, was recorded at 9 AM during the Day between 1st Aug and 2nd Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Porto Alegre, Rio Grande do Sul, Brazil
JulAug
03rd - 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 - 01st01st - 02nd02nd
Day
Night
3rd Jul 2025537 AMAQI
3rd Jul 2025468 AMAQI
3rd Jul 2025469 AMAQI
3rd Jul 20254010 AMAQI
3rd Jul 20254511 AMAQI
3rd Jul 20254712 PMAQI
3rd Jul 2025421 PMAQI
3rd Jul 2025362 PMAQI
3rd Jul 2025413 PMAQI
3rd Jul 2025374 PMAQI
3rd Jul 2025375 PMAQI
3rd Jul 2025406 PMAQI
3rd Jul 2025477 PMAQI
3rd Jul 2025498 PMAQI
3rd Jul 2025579 PMAQI
3rd Jul 20256510 PMAQI
3rd Jul 20255811 PMAQI
4th Jul 20255612 AMAQI
4th Jul 2025581 AMAQI
4th Jul 2025552 AMAQI
4th Jul 2025573 AMAQI
4th Jul 2025624 AMAQI
4th Jul 2025625 AMAQI
4th Jul 2025596 AMAQI
12°C9/17°C
4th Jul 2025627 AMAQI
4th Jul 2025608 AMAQI
4th Jul 2025589 AMAQI
4th Jul 20255510 AMAQI
4th Jul 20255411 AMAQI
4th Jul 20255212 PMAQI
4th Jul 2025531 PMAQI
4th Jul 2025472 PMAQI
4th Jul 2025483 PMAQI
4th Jul 2025444 PMAQI
4th Jul 2025445 PMAQI
4th Jul 2025466 PMAQI
4th Jul 2025457 PMAQI
4th Jul 2025538 PMAQI
4th Jul 2025589 PMAQI
4th Jul 20255910 PMAQI
4th Jul 20255911 PMAQI
5th Jul 20255612 AMAQI
5th Jul 2025541 AMAQI
5th Jul 2025482 AMAQI
5th Jul 2025413 AMAQI
5th Jul 2025444 AMAQI
5th Jul 2025435 AMAQI
5th Jul 2025446 AMAQI
13°C9/18°C
5th Jul 2025417 AMAQI
5th Jul 2025418 AMAQI
5th Jul 2025449 AMAQI
5th Jul 20254710 AMAQI
5th Jul 20254911 AMAQI
5th Jul 20254412 PMAQI
5th Jul 2025411 PMAQI
5th Jul 2025462 PMAQI
5th Jul 2025453 PMAQI
5th Jul 2025434 PMAQI
5th Jul 2025465 PMAQI
5th Jul 2025446 PMAQI
5th Jul 2025477 PMAQI
5th Jul 2025508 PMAQI
5th Jul 2025519 PMAQI
5th Jul 20255410 PMAQI
5th Jul 20255711 PMAQI
6th Jul 20255612 AMAQI
6th Jul 2025561 AMAQI
6th Jul 2025472 AMAQI
6th Jul 2025493 AMAQI
6th Jul 2025444 AMAQI
6th Jul 2025395 AMAQI
6th Jul 2025416 AMAQI
13°C10/18°C
6th Jul 2025407 AMAQI
6th Jul 2025478 AMAQI
6th Jul 2025459 AMAQI
6th Jul 20254210 AMAQI
6th Jul 20254211 AMAQI
6th Jul 20254412 PMAQI
6th Jul 2025471 PMAQI
6th Jul 2025432 PMAQI
6th Jul 2025423 PMAQI
6th Jul 2025434 PMAQI
6th Jul 2025435 PMAQI
6th Jul 2025426 PMAQI
6th Jul 2025447 PMAQI
6th Jul 2025458 PMAQI
6th Jul 2025469 PMAQI
6th Jul 20254610 PMAQI
6th Jul 20254611 PMAQI
7th Jul 20254812 AMAQI
7th Jul 2025491 AMAQI
7th Jul 2025562 AMAQI
7th Jul 2025543 AMAQI
7th Jul 2025564 AMAQI
7th Jul 2025555 AMAQI
7th Jul 2025526 AMAQI
13°C10/18°C
7th Jul 2025497 AMAQI
7th Jul 2025498 AMAQI
7th Jul 2025569 AMAQI
7th Jul 20255110 AMAQI
7th Jul 20255311 AMAQI
7th Jul 20254912 PMAQI
7th Jul 2025521 PMAQI
7th Jul 2025522 PMAQI
7th Jul 2025493 PMAQI
7th Jul 2025484 PMAQI
7th Jul 2025525 PMAQI
7th Jul 2025536 PMAQI
7th Jul 2025547 PMAQI
7th Jul 2025588 PMAQI
7th Jul 2025589 PMAQI
7th Jul 20255710 PMAQI
7th Jul 20255811 PMAQI
8th Jul 20255812 AMAQI
8th Jul 2025621 AMAQI
8th Jul 2025582 AMAQI
8th Jul 2025543 AMAQI
8th Jul 2025544 AMAQI
8th Jul 2025505 AMAQI
8th Jul 2025516 AMAQI
14°C10/20°C
8th Jul 2025527 AMAQI
8th Jul 2025518 AMAQI
8th Jul 2025569 AMAQI
8th Jul 20255210 AMAQI
8th Jul 20255311 AMAQI
8th Jul 20255612 PMAQI
8th Jul 2025541 PMAQI
8th Jul 2025532 PMAQI
8th Jul 2025543 PMAQI
8th Jul 2025554 PMAQI
8th Jul 2025505 PMAQI
8th Jul 2025546 PMAQI
8th Jul 2025547 PMAQI
8th Jul 2025528 PMAQI
8th Jul 2025529 PMAQI
8th Jul 20255310 PMAQI
8th Jul 20254811 PMAQI
9th Jul 20254812 AMAQI
9th Jul 2025491 AMAQI
9th Jul 2025462 AMAQI
9th Jul 2025443 AMAQI
9th Jul 2025384 AMAQI
9th Jul 2025435 AMAQI
9th Jul 2025426 AMAQI
15°C12/18°C
9th Jul 2025417 AMAQI
9th Jul 2025438 AMAQI
9th Jul 2025459 AMAQI
9th Jul 20254310 AMAQI
9th Jul 20254211 AMAQI
9th Jul 20254412 PMAQI
9th Jul 2025471 PMAQI
9th Jul 2025472 PMAQI
9th Jul 2025473 PMAQI
9th Jul 2025444 PMAQI
9th Jul 2025415 PMAQI
9th Jul 2025426 PMAQI
9th Jul 2025437 PMAQI
9th Jul 2025458 PMAQI
9th Jul 2025469 PMAQI
9th Jul 20254610 PMAQI
9th Jul 20254411 PMAQI
10th Jul 20254212 AMAQI
10th Jul 2025421 AMAQI
10th Jul 2025382 AMAQI
10th Jul 2025383 AMAQI
10th Jul 2025454 AMAQI
10th Jul 2025465 AMAQI
10th Jul 2025506 AMAQI
14°C12/17°C
10th Jul 2025457 AMAQI
10th Jul 2025478 AMAQI
10th Jul 2025389 AMAQI
10th Jul 20253710 AMAQI
10th Jul 20254011 AMAQI
10th Jul 20254312 PMAQI
10th Jul 2025401 PMAQI
10th Jul 2025392 PMAQI
10th Jul 2025423 PMAQI
10th Jul 2025364 PMAQI
10th Jul 2025365 PMAQI
10th Jul 2025466 PMAQI
10th Jul 2025547 PMAQI
10th Jul 2025558 PMAQI
10th Jul 2025679 PMAQI
10th Jul 20256110 PMAQI
10th Jul 20257611 PMAQI
11th Jul 20258412 AMAQI
11th Jul 2025741 AMAQI
11th Jul 2025762 AMAQI
11th Jul 2025683 AMAQI
11th Jul 2025624 AMAQI
11th Jul 2025605 AMAQI
11th Jul 2025616 AMAQI
15°C11/20°C
11th Jul 2025607 AMAQI
11th Jul 2025648 AMAQI
11th Jul 2025659 AMAQI
11th Jul 20256510 AMAQI
11th Jul 20256911 AMAQI
11th Jul 20256912 PMAQI
11th Jul 2025721 PMAQI
11th Jul 2025672 PMAQI
11th Jul 2025643 PMAQI
11th Jul 2025614 PMAQI
11th Jul 2025665 PMAQI
11th Jul 2025666 PMAQI
11th Jul 2025607 PMAQI
11th Jul 2025588 PMAQI
11th Jul 2025619 PMAQI
11th Jul 20256010 PMAQI
11th Jul 20256011 PMAQI
12th Jul 20255812 AMAQI
12th Jul 2025531 AMAQI
12th Jul 2025542 AMAQI
12th Jul 2025513 AMAQI
12th Jul 2025554 AMAQI
12th Jul 2025545 AMAQI
12th Jul 2025526 AMAQI
16°C13/20°C
12th Jul 2025547 AMAQI
12th Jul 2025578 AMAQI
12th Jul 2025569 AMAQI
12th Jul 20255510 AMAQI
12th Jul 20255511 AMAQI
12th Jul 20255512 PMAQI
12th Jul 2025551 PMAQI
12th Jul 2025512 PMAQI
12th Jul 2025543 PMAQI
12th Jul 2025464 PMAQI
12th Jul 2025495 PMAQI
12th Jul 2025516 PMAQI
12th Jul 2025537 PMAQI
12th Jul 2025548 PMAQI
12th Jul 2025559 PMAQI
12th Jul 20255110 PMAQI
12th Jul 20254911 PMAQI
13th Jul 20255212 AMAQI
13th Jul 2025441 AMAQI
13th Jul 2025472 AMAQI
13th Jul 2025533 AMAQI
13th Jul 2025544 AMAQI
13th Jul 2025515 AMAQI
13th Jul 2025526 AMAQI
14°C12/18°C
13th Jul 2025497 AMAQI
13th Jul 2025508 AMAQI
13th Jul 2025519 AMAQI
13th Jul 20255110 AMAQI
13th Jul 20255111 AMAQI
13th Jul 20255412 PMAQI
13th Jul 2025591 PMAQI
13th Jul 2025612 PMAQI
13th Jul 2025593 PMAQI
13th Jul 2025594 PMAQI
13th Jul 2025525 PMAQI
13th Jul 2025536 PMAQI
13th Jul 2025587 PMAQI
13th Jul 2025588 PMAQI
13th Jul 2025579 PMAQI
13th Jul 20255410 PMAQI
13th Jul 20255411 PMAQI
14th Jul 20255412 AMAQI
14th Jul 2025541 AMAQI
14th Jul 2025552 AMAQI
14th Jul 2025563 AMAQI
14th Jul 2025544 AMAQI
14th Jul 2025565 AMAQI
14th Jul 2025556 AMAQI
16°C14/21°C
14th Jul 2025557 AMAQI
14th Jul 2025558 AMAQI
14th Jul 2025579 AMAQI
14th Jul 20255510 AMAQI
14th Jul 20255411 AMAQI
14th Jul 20255512 PMAQI
14th Jul 2025561 PMAQI
14th Jul 2025542 PMAQI
14th Jul 2025533 PMAQI
14th Jul 2025504 PMAQI
14th Jul 2025525 PMAQI
14th Jul 2025506 PMAQI
14th Jul 2025527 PMAQI
14th Jul 2025538 PMAQI
14th Jul 2025539 PMAQI
14th Jul 20255510 PMAQI
14th Jul 20255011 PMAQI
15th Jul 20255012 AMAQI
15th Jul 2025491 AMAQI
15th Jul 2025482 AMAQI
15th Jul 2025483 AMAQI
15th Jul 2025464 AMAQI
15th Jul 2025485 AMAQI
15th Jul 2025466 AMAQI
16°C14/20°C
15th Jul 2025507 AMAQI
15th Jul 2025528 AMAQI
15th Jul 2025529 AMAQI
15th Jul 20254710 AMAQI
15th Jul 20254711 AMAQI
15th Jul 20254912 PMAQI
15th Jul 2025491 PMAQI
15th Jul 2025472 PMAQI
15th Jul 2025483 PMAQI
15th Jul 2025444 PMAQI
15th Jul 2025435 PMAQI
15th Jul 2025456 PMAQI
15th Jul 2025487 PMAQI
15th Jul 2025528 PMAQI
15th Jul 2025589 PMAQI
15th Jul 20256610 PMAQI
15th Jul 20258911 PMAQI
16th Jul 20257812 AMAQI
16th Jul 2025871 AMAQI
16th Jul 2025602 AMAQI
16th Jul 2025553 AMAQI
16th Jul 2025694 AMAQI
16th Jul 2025805 AMAQI
16th Jul 2025716 AMAQI
17°C13/23°C
16th Jul 2025587 AMAQI
16th Jul 2025608 AMAQI
16th Jul 2025559 AMAQI
16th Jul 20256010 AMAQI
16th Jul 20255711 AMAQI
16th Jul 20256112 PMAQI
16th Jul 2025591 PMAQI
16th Jul 2025582 PMAQI
16th Jul 2025583 PMAQI
16th Jul 2025564 PMAQI
16th Jul 2025575 PMAQI
16th Jul 2025606 PMAQI
16th Jul 2025637 PMAQI
16th Jul 2025678 PMAQI
16th Jul 2025699 PMAQI
16th Jul 20257110 PMAQI
16th Jul 20257111 PMAQI
17th Jul 20256212 AMAQI
17th Jul 2025571 AMAQI
17th Jul 2025672 AMAQI
17th Jul 2025863 AMAQI
17th Jul 2025714 AMAQI
17th Jul 2025665 AMAQI
17th Jul 2025596 AMAQI
19°C15/25°C
17th Jul 2025547 AMAQI
17th Jul 2025558 AMAQI
17th Jul 2025579 AMAQI
17th Jul 20255810 AMAQI
17th Jul 20256011 AMAQI
17th Jul 20255412 PMAQI
17th Jul 2025531 PMAQI
17th Jul 2025492 PMAQI
17th Jul 2025463 PMAQI
17th Jul 2025524 PMAQI
17th Jul 2025595 PMAQI
17th Jul 2025546 PMAQI
17th Jul 2025387 PMAQI
17th Jul 2025378 PMAQI
17th Jul 2025449 PMAQI
17th Jul 20254210 PMAQI
17th Jul 20254111 PMAQI
18th Jul 20254112 AMAQI
18th Jul 2025371 AMAQI
18th Jul 2025392 AMAQI
18th Jul 2025443 AMAQI
18th Jul 2025364 AMAQI
18th Jul 2025415 AMAQI
18th Jul 2025366 AMAQI
14°C11/17°C
18th Jul 2025397 AMAQI
18th Jul 2025378 AMAQI
18th Jul 2025329 AMAQI
18th Jul 20253410 AMAQI
18th Jul 20253311 AMAQI
18th Jul 20253712 PMAQI
18th Jul 2025381 PMAQI
18th Jul 2025292 PMAQI
18th Jul 2025363 PMAQI
18th Jul 2025344 PMAQI
18th Jul 2025445 PMAQI
18th Jul 2025396 PMAQI
18th Jul 2025307 PMAQI
18th Jul 2025338 PMAQI
18th Jul 2025509 PMAQI
18th Jul 20255110 PMAQI
18th Jul 20254911 PMAQI
19th Jul 20254212 AMAQI
19th Jul 2025481 AMAQI
19th Jul 2025522 AMAQI
19th Jul 2025463 AMAQI
19th Jul 2025424 AMAQI
19th Jul 2025455 AMAQI
19th Jul 2025456 AMAQI
12°C10/14°C
19th Jul 2025407 AMAQI
19th Jul 2025368 AMAQI
19th Jul 2025459 AMAQI
19th Jul 20253710 AMAQI
19th Jul 20254111 AMAQI
19th Jul 20253912 PMAQI
19th Jul 2025351 PMAQI
19th Jul 2025322 PMAQI
19th Jul 2025293 PMAQI
19th Jul 2025324 PMAQI
19th Jul 2025315 PMAQI
19th Jul 2025326 PMAQI
19th Jul 2025387 PMAQI
19th Jul 2025468 PMAQI
19th Jul 2025649 PMAQI
19th Jul 20256010 PMAQI
19th Jul 20256311 PMAQI
20th Jul 20256112 AMAQI
20th Jul 2025621 AMAQI
20th Jul 2025622 AMAQI
20th Jul 2025623 AMAQI
20th Jul 2025534 AMAQI
20th Jul 2025505 AMAQI
20th Jul 2025496 AMAQI
13°C9/18°C
20th Jul 2025497 AMAQI
20th Jul 2025488 AMAQI
20th Jul 2025569 AMAQI
20th Jul 20255310 AMAQI
20th Jul 20255711 AMAQI
20th Jul 20256212 PMAQI
20th Jul 2025661 PMAQI
20th Jul 2025642 PMAQI
20th Jul 2025603 PMAQI
20th Jul 2025584 PMAQI
20th Jul 2025525 PMAQI
20th Jul 2025486 PMAQI
20th Jul 2025527 PMAQI
20th Jul 2025618 PMAQI
20th Jul 2025629 PMAQI
20th Jul 20256210 PMAQI
20th Jul 20256311 PMAQI
21st Jul 20256212 AMAQI
21st Jul 2025621 AMAQI
21st Jul 2025722 AMAQI
21st Jul 2025613 AMAQI
21st Jul 2025604 AMAQI
21st Jul 2025615 AMAQI
21st Jul 2025536 AMAQI
14°C10/20°C
21st Jul 2025517 AMAQI
21st Jul 2025508 AMAQI
21st Jul 2025529 AMAQI
21st Jul 20255310 AMAQI
21st Jul 20255911 AMAQI
21st Jul 20255712 PMAQI
21st Jul 2025571 PMAQI
21st Jul 2025612 PMAQI
21st Jul 2025583 PMAQI
21st Jul 2025504 PMAQI
21st Jul 2025495 PMAQI
21st Jul 2025516 PMAQI
21st Jul 2025607 PMAQI
21st Jul 2025618 PMAQI
21st Jul 2025849 PMAQI
21st Jul 20259010 PMAQI
21st Jul 20258611 PMAQI
22nd Jul 20257312 AMAQI
22nd Jul 2025601 AMAQI
22nd Jul 2025522 AMAQI
22nd Jul 2025483 AMAQI
22nd Jul 2025544 AMAQI
22nd Jul 2025515 AMAQI
22nd Jul 2025476 AMAQI
16°C12/22°C
22nd Jul 2025467 AMAQI
22nd Jul 2025548 AMAQI
22nd Jul 2025529 AMAQI
22nd Jul 20255310 AMAQI
22nd Jul 20255511 AMAQI
22nd Jul 20255512 PMAQI
22nd Jul 2025491 PMAQI
22nd Jul 2025472 PMAQI
22nd Jul 2025473 PMAQI
22nd Jul 2025524 PMAQI
22nd Jul 2025545 PMAQI
22nd Jul 2025536 PMAQI
22nd Jul 2025507 PMAQI
22nd Jul 2025428 PMAQI
22nd Jul 2025469 PMAQI
22nd Jul 20254610 PMAQI
22nd Jul 20254911 PMAQI
23rd Jul 20254612 AMAQI
23rd Jul 2025371 AMAQI
23rd Jul 2025432 AMAQI
23rd Jul 2025463 AMAQI
23rd Jul 2025454 AMAQI
23rd Jul 2025465 AMAQI
23rd Jul 2025516 AMAQI
17°C13/22°C
23rd Jul 2025567 AMAQI
23rd Jul 2025468 AMAQI
23rd Jul 2025389 AMAQI
23rd Jul 20253510 AMAQI
23rd Jul 20253711 AMAQI
23rd Jul 20254112 PMAQI
23rd Jul 2025401 PMAQI
23rd Jul 2025432 PMAQI
23rd Jul 2025373 PMAQI
23rd Jul 2025324 PMAQI
23rd Jul 2025455 PMAQI
23rd Jul 2025426 PMAQI
23rd Jul 2025387 PMAQI
23rd Jul 2025388 PMAQI
23rd Jul 2025359 PMAQI
23rd Jul 20253710 PMAQI
23rd Jul 20253311 PMAQI
24th Jul 20253412 AMAQI
24th Jul 2025311 AMAQI
24th Jul 2025262 AMAQI
24th Jul 2025273 AMAQI
24th Jul 2025244 AMAQI
24th Jul 2025265 AMAQI
24th Jul 2025326 AMAQI
12°C10/14°C
24th Jul 2025327 AMAQI
24th Jul 2025368 AMAQI
24th Jul 2025349 AMAQI
24th Jul 20252910 AMAQI
24th Jul 20253011 AMAQI
24th Jul 20253212 PMAQI
24th Jul 2025331 PMAQI
24th Jul 2025332 PMAQI
24th Jul 2025273 PMAQI
24th Jul 2025294 PMAQI
24th Jul 2025255 PMAQI
24th Jul 2025406 PMAQI
24th Jul 2025327 PMAQI
24th Jul 2025358 PMAQI
24th Jul 2025529 PMAQI
24th Jul 20255310 PMAQI
24th Jul 20255511 PMAQI
25th Jul 20254212 AMAQI
25th Jul 2025281 AMAQI
25th Jul 2025372 AMAQI
25th Jul 2025363 AMAQI
25th Jul 2025304 AMAQI
25th Jul 2025285 AMAQI
25th Jul 2025376 AMAQI
13°C10/18°C
25th Jul 2025367 AMAQI
25th Jul 2025378 AMAQI
25th Jul 2025449 AMAQI
25th Jul 20254210 AMAQI
25th Jul 20253311 AMAQI
25th Jul 20254012 PMAQI
25th Jul 2025441 PMAQI
25th Jul 2025452 PMAQI
25th Jul 2025413 PMAQI
25th Jul 2025444 PMAQI
25th Jul 2025415 PMAQI
25th Jul 2025506 PMAQI
25th Jul 2025457 PMAQI
25th Jul 2025438 PMAQI
25th Jul 2025549 PMAQI
25th Jul 20255510 PMAQI
25th Jul 20255611 PMAQI
26th Jul 20256012 AMAQI
26th Jul 2025521 AMAQI
26th Jul 2025502 AMAQI
26th Jul 2025523 AMAQI
26th Jul 2025524 AMAQI
26th Jul 2025495 AMAQI
26th Jul 2025546 AMAQI
17°C13/23°C
26th Jul 2025537 AMAQI
26th Jul 2025488 AMAQI
26th Jul 2025489 AMAQI
26th Jul 20254810 AMAQI
26th Jul 20254811 AMAQI
26th Jul 20254212 PMAQI
26th Jul 2025431 PMAQI
26th Jul 2025382 PMAQI
26th Jul 2025413 PMAQI
26th Jul 2025364 PMAQI
26th Jul 2025475 PMAQI
26th Jul 2025446 PMAQI
26th Jul 2025357 PMAQI
26th Jul 2025438 PMAQI
26th Jul 2025449 PMAQI
26th Jul 20254610 PMAQI
26th Jul 20254411 PMAQI
27th Jul 20254112 AMAQI
27th Jul 2025311 AMAQI
27th Jul 2025342 AMAQI
27th Jul 2025263 AMAQI
27th Jul 2025374 AMAQI
27th Jul 2025395 AMAQI
27th Jul 2025546 AMAQI
17°C14/21°C
27th Jul 2025437 AMAQI
27th Jul 2025408 AMAQI
27th Jul 2025369 AMAQI
27th Jul 20254010 AMAQI
27th Jul 20254011 AMAQI
27th Jul 20254212 PMAQI
27th Jul 2025461 PMAQI
27th Jul 2025462 PMAQI
27th Jul 2025463 PMAQI
27th Jul 2025384 PMAQI
27th Jul 2025405 PMAQI
27th Jul 2025416 PMAQI
27th Jul 2025477 PMAQI
27th Jul 2025478 PMAQI
27th Jul 2025419 PMAQI
27th Jul 20254710 PMAQI
27th Jul 20253911 PMAQI
28th Jul 20254112 AMAQI
28th Jul 2025381 AMAQI
28th Jul 2025412 AMAQI
28th Jul 2025443 AMAQI
28th Jul 2025384 AMAQI
28th Jul 2025345 AMAQI
28th Jul 2025316 AMAQI
16°C15/17°C
28th Jul 2025377 AMAQI
28th Jul 2025338 AMAQI
28th Jul 2025329 AMAQI
28th Jul 20253010 AMAQI
28th Jul 20253211 AMAQI
28th Jul 20253012 PMAQI
28th Jul 2025391 PMAQI
28th Jul 2025322 PMAQI
28th Jul 2025313 PMAQI
28th Jul 2025304 PMAQI
28th Jul 2025335 PMAQI
28th Jul 2025296 PMAQI
28th Jul 2025307 PMAQI
28th Jul 2025288 PMAQI
28th Jul 2025309 PMAQI
28th Jul 20253210 PMAQI
28th Jul 20253311 PMAQI
29th Jul 20252512 AMAQI
29th Jul 2025241 AMAQI
29th Jul 2025302 AMAQI
29th Jul 2025263 AMAQI
29th Jul 2025264 AMAQI
29th Jul 2025315 AMAQI
29th Jul 2025266 AMAQI
12°C11/14°C
29th Jul 2025257 AMAQI
29th Jul 2025278 AMAQI
29th Jul 2025259 AMAQI
29th Jul 20252410 AMAQI
29th Jul 20252511 AMAQI
29th Jul 20252512 PMAQI
29th Jul 2025241 PMAQI
29th Jul 2025262 PMAQI
29th Jul 2025273 PMAQI
29th Jul 2025284 PMAQI
29th Jul 2025265 PMAQI
29th Jul 2025256 PMAQI
29th Jul 2025237 PMAQI
29th Jul 2025398 PMAQI
29th Jul 2025429 PMAQI
29th Jul 20255310 PMAQI
29th Jul 20254411 PMAQI
30th Jul 20253612 AMAQI
30th Jul 2025341 AMAQI
30th Jul 2025412 AMAQI
30th Jul 2025353 AMAQI
30th Jul 2025324 AMAQI
30th Jul 2025335 AMAQI
30th Jul 2025316 AMAQI
11°C8/14°C
30th Jul 2025307 AMAQI
30th Jul 2025448 AMAQI
30th Jul 2025389 AMAQI
30th Jul 20253510 AMAQI
30th Jul 20253011 AMAQI
30th Jul 20253412 PMAQI
30th Jul 2025331 PMAQI
30th Jul 2025362 PMAQI
30th Jul 2025313 PMAQI
30th Jul 2025514 PMAQI
30th Jul 2025545 PMAQI
30th Jul 2025546 PMAQI
30th Jul 2025547 PMAQI
30th Jul 2025548 PMAQI
30th Jul 2025549 PMAQI
30th Jul 20255410 PMAQI
30th Jul 20254711 PMAQI
31st Jul 20254412 AMAQI
31st Jul 2025411 AMAQI
31st Jul 2025392 AMAQI
31st Jul 2025333 AMAQI
31st Jul 2025324 AMAQI
31st Jul 2025365 AMAQI
31st Jul 2025316 AMAQI
11°C8/16°C
31st Jul 2025317 AMAQI
31st Jul 2025398 AMAQI
31st Jul 2025579 AMAQI
31st Jul 20255610 AMAQI
31st Jul 20255711 AMAQI
31st Jul 20255912 PMAQI
31st Jul 2025541 PMAQI
31st Jul 2025552 PMAQI
31st Jul 2025563 PMAQI
31st Jul 2025544 PMAQI
31st Jul 2025535 PMAQI
31st Jul 2025526 PMAQI
31st Jul 2025527 PMAQI
31st Jul 2025518 PMAQI
31st Jul 2025649 PMAQI
31st Jul 20256510 PMAQI
31st Jul 20257611 PMAQI
1st Aug 20256512 AMAQI
1st Aug 2025511 AMAQI
1st Aug 2025492 AMAQI
1st Aug 2025463 AMAQI
1st Aug 2025534 AMAQI
1st Aug 2025485 AMAQI
1st Aug 2025506 AMAQI
14°C10/21°C
1st Aug 2025587 AMAQI
1st Aug 2025468 AMAQI
1st Aug 2025419 AMAQI
1st Aug 20254610 AMAQI
1st Aug 20254511 AMAQI
1st Aug 20255512 PMAQI
1st Aug 2025431 PMAQI
1st Aug 2025502 PMAQI
1st Aug 2025513 PMAQI
1st Aug 2025484 PMAQI
1st Aug 2025515 PMAQI
1st Aug 2025506 PMAQI
1st Aug 2025517 PMAQI
1st Aug 2025508 PMAQI
1st Aug 2025509 PMAQI
1st Aug 20255010 PMAQI
1st Aug 20255111 PMAQI
2nd Aug 20255612 AMAQI
2nd Aug 2025591 AMAQI
2nd Aug 2025552 AMAQI
2nd Aug 2025573 AMAQI
2nd Aug 2025644 AMAQI
2nd Aug 2025545 AMAQI
2nd Aug 2025666 AMAQI
17°C12/23°C
2nd Aug 2025657 AMAQI
7 AM2nd Aug 2025588 AMAQI
2nd Aug 2025579 AMAQI
2nd Aug 20255910 AMAQI
2nd Aug 20255511 AMAQI
2nd Aug 20255312 PMAQI
12 PM2nd Aug 2025561 PMAQI
2nd Aug 2025562 PMAQI
2nd Aug 2025513 PMAQI
5 PM
12 AM
6 AM
--°C/°C
Day time
Avg. Highest Time
7 AM - 5 PM
47AQI
11 hours / Day
330 hours / Month
Avg. Lowest Time
7 AM - 5 PM
47AQI
11 hours / Day
330 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 7 AM to 5 PM (Avg. 47), while the lowest AQI was between 7 AM to 5 PM (Avg. 47).
Night time
Avg. Highest Time
9 PM - 11 PM
54AQI
3 hours / Day
90 hours / Month
Avg. Lowest Time
1 AM - 8 PM
48AQI
9 hours / Day
270 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 9 PM to 11 PM (Avg. 54), while the lowest AQI was between 1 AM to 8 PM (Avg. 48).
2025 Days Vs Air Quality
Porto Alegre, Rio Grande do Sul, Brazil
2025
78%
167
22%
46
Total number of days with different AQI categories in last 214 days in 2025 (151 days remaining)
Good
167 DaysModerate
46 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 78%
Health Risk Level:
Low
In 2025, 78% of 214 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
Porto Alegre, Rio Grande do Sul, Brazil
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
46AQI
46AQI
2nd January 2025
47AQI
47AQI
3rd January 2025
45AQI
45AQI
4th January 2025
44AQI
44AQI
5th January 2025
45AQI
45AQI
6th January 2025
43AQI
43AQI
7th January 2025
45AQI
45AQI
8th January 2025
43AQI
43AQI
9th January 2025
42AQI
42AQI
10th January 2025
40AQI
40AQI
11th January 2025
41AQI
41AQI
12th January 2025
41AQI
41AQI
13th January 2025
41AQI
41AQI
14th January 2025
38AQI
38AQI
15th January 2025
41AQI
41AQI
16th January 2025
47AQI
47AQI
17th January 2025
48AQI
48AQI
18th January 2025
47AQI
47AQI
19th January 2025
50AQI
50AQI
20th January 2025
49AQI
49AQI
21st January 2025
46AQI
46AQI
22nd January 2025
50AQI
50AQI
23rd January 2025
41AQI
41AQI
24th January 2025
47AQI
47AQI
25th January 2025
53AQI
53AQI
26th January 2025
51AQI
51AQI
27th January 2025
47AQI
47AQI
28th January 2025
48AQI
48AQI
29th January 2025
48AQI
48AQI
30th January 2025
47AQI
47AQI
31st January 2025
45AQI
45AQI
1st February 2025
45AQI
45AQI
2nd February 2025
48AQI
48AQI
3rd February 2025
44AQI
44AQI
4th February 2025
46AQI
46AQI
5th February 2025
50AQI
50AQI
6th February 2025
50AQI
50AQI
7th February 2025
50AQI
50AQI
8th February 2025
48AQI
48AQI
9th February 2025
51AQI
51AQI
10th February 2025
48AQI
48AQI
11th February 2025
54AQI
54AQI
12th February 2025
60AQI
60AQI
13th February 2025
61AQI
61AQI
14th February 2025
56AQI
56AQI
15th February 2025
52AQI
52AQI
16th February 2025
55AQI
55AQI
17th February 2025
56AQI
56AQI
18th February 2025
56AQI
56AQI
19th February 2025
50AQI
50AQI
20th February 2025
50AQI
50AQI
21st February 2025
49AQI
49AQI
22nd February 2025
50AQI
50AQI
23rd February 2025
48AQI
48AQI
24th February 2025
47AQI
47AQI
25th February 2025
49AQI
49AQI
26th February 2025
50AQI
50AQI
27th February 2025
52AQI
52AQI
28th February 2025
51AQI
51AQI
1st March 2025
51AQI
51AQI
2nd March 2025
45AQI
45AQI
3rd March 2025
47AQI
47AQI
4th March 2025
50AQI
50AQI
5th March 2025
47AQI
47AQI
6th March 2025
46AQI
46AQI
7th March 2025
42AQI
42AQI
8th March 2025
48AQI
48AQI
9th March 2025
47AQI
47AQI
10th March 2025
48AQI
48AQI
11th March 2025
43AQI
43AQI
12th March 2025
47AQI
47AQI
13th March 2025
48AQI
48AQI
14th March 2025
45AQI
45AQI
15th March 2025
41AQI
41AQI
16th March 2025
43AQI
43AQI
17th March 2025
46AQI
46AQI
18th March 2025
49AQI
49AQI
19th March 2025
45AQI
45AQI
20th March 2025
44AQI
44AQI
21st March 2025
44AQI
44AQI
22nd March 2025
44AQI
44AQI
23rd March 2025
47AQI
47AQI
24th March 2025
47AQI
47AQI
25th March 2025
53AQI
53AQI
26th March 2025
55AQI
55AQI
27th March 2025
57AQI
57AQI
28th March 2025
58AQI
58AQI
29th March 2025
56AQI
56AQI
30th March 2025
57AQI
57AQI
31st March 2025
52AQI
52AQI
1st April 2025
57AQI
57AQI
2nd April 2025
55AQI
55AQI
3rd April 2025
53AQI
53AQI
4th April 2025
48AQI
48AQI
5th April 2025
45AQI
45AQI
6th April 2025
41AQI
41AQI
7th April 2025
39AQI
39AQI
8th April 2025
42AQI
42AQI
9th April 2025
49AQI
49AQI
10th April 2025
48AQI
48AQI
11th April 2025
40AQI
40AQI
12th April 2025
43AQI
43AQI
13th April 2025
46AQI
46AQI
14th April 2025
40AQI
40AQI
15th April 2025
38AQI
38AQI
16th April 2025
42AQI
42AQI
17th April 2025
45AQI
45AQI
18th April 2025
45AQI
45AQI
19th April 2025
45AQI
45AQI
20th April 2025
40AQI
40AQI
21st April 2025
40AQI
40AQI
22nd April 2025
39AQI
39AQI
23rd April 2025
38AQI
38AQI
24th April 2025
42AQI
42AQI
25th April 2025
39AQI
39AQI
26th April 2025
43AQI
43AQI
27th April 2025
48AQI
48AQI
28th April 2025
50AQI
50AQI
29th April 2025
43AQI
43AQI
30th April 2025
43AQI
43AQI
1st May 2025
36AQI
36AQI
2nd May 2025
39AQI
39AQI
3rd May 2025
44AQI
44AQI
4th May 2025
43AQI
43AQI
5th May 2025
46AQI
46AQI
6th May 2025
44AQI
44AQI
7th May 2025
46AQI
46AQI
8th May 2025
44AQI
44AQI
9th May 2025
37AQI
37AQI
10th May 2025
36AQI
36AQI
11th May 2025
28AQI
28AQI
12th May 2025
29AQI
29AQI
13th May 2025
29AQI
29AQI
14th May 2025
37AQI
37AQI
15th May 2025
46AQI
46AQI
16th May 2025
51AQI
51AQI
17th May 2025
48AQI
48AQI
18th May 2025
40AQI
40AQI
19th May 2025
35AQI
35AQI
20th May 2025
49AQI
49AQI
21st May 2025
41AQI
41AQI
22nd May 2025
39AQI
39AQI
23rd May 2025
31AQI
31AQI
24th May 2025
47AQI
47AQI
25th May 2025
43AQI
43AQI
26th May 2025
38AQI
38AQI
27th May 2025
38AQI
38AQI
28th May 2025
34AQI
34AQI
29th May 2025
33AQI
33AQI
30th May 2025
40AQI
40AQI
31st May 2025
45AQI
45AQI
1st June 2025
49AQI
49AQI
2nd June 2025
48AQI
48AQI
3rd June 2025
57AQI
57AQI
4th June 2025
47AQI
47AQI
5th June 2025
42AQI
42AQI
6th June 2025
32AQI
32AQI
7th June 2025
38AQI
38AQI
8th June 2025
48AQI
48AQI
9th June 2025
46AQI
46AQI
10th June 2025
46AQI
46AQI
11th June 2025
43AQI
43AQI
12th June 2025
36AQI
36AQI
13th June 2025
38AQI
38AQI
14th June 2025
44AQI
44AQI
15th June 2025
45AQI
45AQI
16th June 2025
39AQI
39AQI
17th June 2025
44AQI
44AQI
18th June 2025
48AQI
48AQI
19th June 2025
48AQI
48AQI
20th June 2025
47AQI
47AQI
21st June 2025
54AQI
54AQI
22nd June 2025
52AQI
52AQI
23rd June 2025
37AQI
37AQI
24th June 2025
37AQI
37AQI
25th June 2025
43AQI
43AQI
26th June 2025
53AQI
53AQI
27th June 2025
53AQI
53AQI
28th June 2025
55AQI
55AQI
29th June 2025
43AQI
43AQI
30th June 2025
37AQI
37AQI
1st July 2025
39AQI
39AQI
2nd July 2025
50AQI
50AQI
3rd July 2025
54AQI
54AQI
4th July 2025
55AQI
55AQI
5th July 2025
49AQI
49AQI
6th July 2025
47AQI
47AQI
7th July 2025
53AQI
53AQI
8th July 2025
54AQI
54AQI
9th July 2025
45AQI
45AQI
10th July 2025
47AQI
47AQI
11th July 2025
66AQI
66AQI
12th July 2025
54AQI
54AQI
13th July 2025
53AQI
53AQI
14th July 2025
54AQI
54AQI
15th July 2025
52AQI
52AQI
16th July 2025
67AQI
67AQI
17th July 2025
57AQI
57AQI
18th July 2025
40AQI
40AQI
19th July 2025
44AQI
44AQI
20th July 2025
58AQI
58AQI
21st July 2025
62AQI
62AQI
22nd July 2025
56AQI
56AQI
23rd July 2025
43AQI
43AQI
24th July 2025
35AQI
35AQI
25th July 2025
42AQI
42AQI
26th July 2025
48AQI
48AQI
27th July 2025
42AQI
42AQI
28th July 2025
35AQI
35AQI
29th July 2025
29AQI
29AQI
30th July 2025
41AQI
41AQI
31st July 2025
50AQI
50AQI
1st August 2025
56AQI
56AQI
45AQI
51AQI
48AQI
44AQI
40AQI
45AQI
49AQI
56AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202546AQI
29
2
17
11
23
8
27
3
30
1
24
6
17
14
1
167
46
Highest AQI recorded in
August56AQI
Lowest AQI recorded in
May40AQI
202436AQI
29
1
20
1
2
8
4
12
18
11
20
25
6
3
13
27
3
28
3
179
55
Highest AQI recorded in
July53AQI
Lowest AQI recorded in
February0AQI
202313AQI
31
28
31
30
26
5
27
3
31
31
30
31
29
31
356
8
Highest AQI recorded in
May29AQI
Lowest AQI recorded in
November6AQI
20226AQI
4
30
30
64
Highest AQI recorded in
October8AQI
Lowest AQI recorded in
November6AQI
Most & Least Polluted Years Over the Last 4 Years
Most Polluted Year Recorded
2025(Avg.)
46AQILeast Polluted Year Recorded
2022(Avg.)
6AQIPorto Alegre's annual 2025 AQI (46) shows an average percentage change of 313.6% (worsened AQI) compared to previous years: 2022 (6), 2023 (13), 2024 (36).
