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HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Chaves, Vila Real, Portugal 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

Chaves, Vila Real, Portugal

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
11th Aug 2025
74AQI
Lowest AQI recorded on
19th Aug 2023
17AQI

Same Day Analysis (3rd August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 1st highest AQI at 42 of Good air quality on the same day.

Day & Night AQI Trend: 2nd Aug - 3rd Aug 2026

Chaves, Vila Real, Portugal

AQI
Day
Night
.

7 AM2nd Aug 2026

10 PM

6 AM3rd Aug 2026

Day time
Avg. Highest Time
9PM2nd Aug

40AQI

Avg. Lowest Time
6PM2nd Aug

21AQI

Night time
Avg. Highest Time
3AM3rd Aug

56AQI

Avg. Lowest Time
12AM3rd Aug

33AQI

In the last 24 hours,

Chaves's AQI reached its highest point of 56 at 3 AM during the Night, while the lowest point, 21, was recorded at 6 PM during the Day between 2nd Aug and 3rd Aug 2026.

Day & Night AQI Trend : Jul - Aug 2026

Chaves, Vila Real, Portugal

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
Day
Night
5th Jul 2026207 AMAQI
5th Jul 2026238 AMAQI
5th Jul 2026229 AMAQI
5th Jul 20262010 AMAQI
5th Jul 20262211 AMAQI
5th Jul 20262012 PMAQI
5th Jul 2026181 PMAQI
5th Jul 2026202 PMAQI
5th Jul 2026213 PMAQI
5th Jul 2026204 PMAQI
5th Jul 2026205 PMAQI
5th Jul 2026266 PMAQI
5th Jul 2026237 PMAQI
5th Jul 2026268 PMAQI
5th Jul 2026519 PMAQI
5th Jul 20263810 PMAQI
5th Jul 20262411 PMAQI
6th Jul 20262312 AMAQI
6th Jul 2026421 AMAQI
6th Jul 2026642 AMAQI
6th Jul 2026663 AMAQI
6th Jul 2026604 AMAQI
6th Jul 2026525 AMAQI
6th Jul 2026426 AMAQI

26°C16/35°C

6th Jul 2026317 AMAQI
6th Jul 2026388 AMAQI
6th Jul 2026489 AMAQI
6th Jul 20265110 AMAQI
6th Jul 20265011 AMAQI
6th Jul 20264412 PMAQI
6th Jul 2026551 PMAQI
6th Jul 2026532 PMAQI
6th Jul 2026533 PMAQI
6th Jul 2026604 PMAQI
6th Jul 2026655 PMAQI
6th Jul 2026686 PMAQI
6th Jul 2026287 PMAQI
6th Jul 2026308 PMAQI
6th Jul 2026269 PMAQI
6th Jul 20263010 PMAQI
6th Jul 20262911 PMAQI
7th Jul 20263012 AMAQI
7th Jul 2026641 AMAQI
7th Jul 2026622 AMAQI
7th Jul 2026623 AMAQI
7th Jul 2026604 AMAQI
7th Jul 2026585 AMAQI
7th Jul 2026626 AMAQI

26°C18/35°C

7th Jul 2026557 AMAQI
7th Jul 2026538 AMAQI
7th Jul 2026659 AMAQI
7th Jul 20266210 AMAQI
7th Jul 20266311 AMAQI
7th Jul 20267112 PMAQI
7th Jul 2026641 PMAQI
7th Jul 2026692 PMAQI
7th Jul 2026663 PMAQI
7th Jul 2026684 PMAQI
7th Jul 2026725 PMAQI
7th Jul 2026676 PMAQI
7th Jul 2026507 PMAQI
7th Jul 2026538 PMAQI
7th Jul 2026559 PMAQI
7th Jul 20266410 PMAQI
7th Jul 20266811 PMAQI
8th Jul 20265612 AMAQI
8th Jul 2026571 AMAQI
8th Jul 2026542 AMAQI
8th Jul 2026513 AMAQI
8th Jul 2026514 AMAQI
8th Jul 2026545 AMAQI
8th Jul 2026516 AMAQI

24°C15/34°C

8th Jul 2026577 AMAQI
8th Jul 2026578 AMAQI
8th Jul 2026429 AMAQI
8th Jul 20264810 AMAQI
8th Jul 20265211 AMAQI
8th Jul 20266512 PMAQI
8th Jul 2026461 PMAQI
8th Jul 2026692 PMAQI
8th Jul 2026643 PMAQI
8th Jul 2026624 PMAQI
8th Jul 2026645 PMAQI
8th Jul 2026686 PMAQI
8th Jul 2026677 PMAQI
8th Jul 2026668 PMAQI
8th Jul 2026539 PMAQI
8th Jul 20265410 PMAQI
8th Jul 20266511 PMAQI
9th Jul 20266712 AMAQI
9th Jul 2026641 AMAQI
9th Jul 2026672 AMAQI
9th Jul 2026653 AMAQI
9th Jul 2026604 AMAQI
9th Jul 2026625 AMAQI
9th Jul 2026586 AMAQI

24°C15/33°C

9th Jul 2026507 AMAQI
9th Jul 2026508 AMAQI
9th Jul 2026569 AMAQI
9th Jul 20265810 AMAQI
9th Jul 20266211 AMAQI
9th Jul 20266412 PMAQI
9th Jul 2026651 PMAQI
9th Jul 2026642 PMAQI
9th Jul 2026643 PMAQI
9th Jul 2026714 PMAQI
9th Jul 2026715 PMAQI
9th Jul 2026566 PMAQI
9th Jul 2026537 PMAQI
9th Jul 2026608 PMAQI
9th Jul 2026529 PMAQI
9th Jul 20265310 PMAQI
9th Jul 20266511 PMAQI
10th Jul 20266212 AMAQI
10th Jul 2026641 AMAQI
10th Jul 2026692 AMAQI
10th Jul 2026723 AMAQI
10th Jul 2026564 AMAQI
10th Jul 2026645 AMAQI
10th Jul 2026646 AMAQI

24°C16/33°C

10th Jul 2026607 AMAQI
10th Jul 2026688 AMAQI
10th Jul 2026729 AMAQI
10th Jul 20267310 AMAQI
10th Jul 20265611 AMAQI
10th Jul 20266412 PMAQI
10th Jul 2026621 PMAQI
10th Jul 2026582 PMAQI
10th Jul 2026733 PMAQI
10th Jul 2026794 PMAQI
10th Jul 2026655 PMAQI
10th Jul 2026646 PMAQI
10th Jul 2026597 PMAQI
10th Jul 2026648 PMAQI
10th Jul 2026589 PMAQI
10th Jul 20265210 PMAQI
10th Jul 20265611 PMAQI
11th Jul 20264812 AMAQI
11th Jul 2026551 AMAQI
11th Jul 2026462 AMAQI
11th Jul 2026503 AMAQI
11th Jul 2026294 AMAQI
11th Jul 2026445 AMAQI
11th Jul 2026426 AMAQI

23°C15/33°C

11th Jul 2026527 AMAQI
11th Jul 2026538 AMAQI
11th Jul 2026519 AMAQI
11th Jul 20264710 AMAQI
11th Jul 20264611 AMAQI
11th Jul 20264212 PMAQI
11th Jul 2026461 PMAQI
11th Jul 2026522 PMAQI
11th Jul 2026423 PMAQI
11th Jul 2026594 PMAQI
11th Jul 2026565 PMAQI
11th Jul 2026556 PMAQI
11th Jul 2026547 PMAQI
11th Jul 2026428 PMAQI
11th Jul 2026389 PMAQI
11th Jul 20266210 PMAQI
11th Jul 20266711 PMAQI
12th Jul 20264612 AMAQI
12th Jul 2026331 AMAQI
12th Jul 2026482 AMAQI
12th Jul 2026623 AMAQI
12th Jul 2026464 AMAQI
12th Jul 2026475 AMAQI
12th Jul 2026446 AMAQI

23°C15/34°C

12th Jul 2026407 AMAQI
12th Jul 2026478 AMAQI
12th Jul 2026459 AMAQI
12th Jul 20264010 AMAQI
12th Jul 20264011 AMAQI
12th Jul 20264012 PMAQI
12th Jul 2026561 PMAQI
12th Jul 2026582 PMAQI
12th Jul 2026553 PMAQI
12th Jul 2026554 PMAQI
12th Jul 2026445 PMAQI
12th Jul 2026406 PMAQI
12th Jul 2026307 PMAQI
12th Jul 2026308 PMAQI
12th Jul 2026189 PMAQI
12th Jul 20261810 PMAQI
12th Jul 20262011 PMAQI
13th Jul 20262612 AMAQI
13th Jul 2026191 AMAQI
13th Jul 2026282 AMAQI
13th Jul 2026273 AMAQI
13th Jul 2026244 AMAQI
13th Jul 2026245 AMAQI
13th Jul 2026206 AMAQI

19°C13/26°C

13th Jul 2026167 AMAQI
13th Jul 2026168 AMAQI
13th Jul 2026179 AMAQI
13th Jul 20261710 AMAQI
13th Jul 20262811 AMAQI
13th Jul 20263012 PMAQI
13th Jul 2026301 PMAQI
13th Jul 2026222 PMAQI
13th Jul 2026323 PMAQI
13th Jul 2026334 PMAQI
13th Jul 2026135 PMAQI
13th Jul 2026306 PMAQI
13th Jul 2026467 PMAQI
13th Jul 2026588 PMAQI
13th Jul 2026489 PMAQI
13th Jul 20263210 PMAQI
13th Jul 20263211 PMAQI
14th Jul 20263612 AMAQI
14th Jul 2026471 AMAQI
14th Jul 2026362 AMAQI
14th Jul 2026193 AMAQI
14th Jul 2026324 AMAQI
14th Jul 2026435 AMAQI
14th Jul 2026356 AMAQI

17°C10/25°C

14th Jul 2026177 AMAQI
14th Jul 2026168 AMAQI
14th Jul 2026279 AMAQI
14th Jul 20263610 AMAQI
14th Jul 20262511 AMAQI
14th Jul 20261812 PMAQI
14th Jul 2026231 PMAQI
14th Jul 2026272 PMAQI
14th Jul 2026313 PMAQI
14th Jul 2026314 PMAQI
14th Jul 2026545 PMAQI
14th Jul 2026496 PMAQI
14th Jul 2026367 PMAQI
14th Jul 2026348 PMAQI
14th Jul 2026489 PMAQI
14th Jul 20264810 PMAQI
14th Jul 20264411 PMAQI
15th Jul 20264212 AMAQI
15th Jul 2026361 AMAQI
15th Jul 2026462 AMAQI
15th Jul 2026463 AMAQI
15th Jul 2026384 AMAQI
15th Jul 2026425 AMAQI
15th Jul 2026366 AMAQI

19°C12/28°C

15th Jul 2026277 AMAQI
15th Jul 2026348 AMAQI
15th Jul 2026279 AMAQI
15th Jul 20262510 AMAQI
15th Jul 20264011 AMAQI
15th Jul 20264412 PMAQI
15th Jul 2026401 PMAQI
15th Jul 2026362 PMAQI
15th Jul 2026403 PMAQI
15th Jul 2026444 PMAQI
15th Jul 2026465 PMAQI
15th Jul 2026406 PMAQI
15th Jul 2026347 PMAQI
15th Jul 2026288 PMAQI
15th Jul 2026259 PMAQI
15th Jul 20262610 PMAQI
15th Jul 20262711 PMAQI
16th Jul 20262212 AMAQI
16th Jul 2026221 AMAQI
16th Jul 2026282 AMAQI
16th Jul 2026303 AMAQI
16th Jul 2026244 AMAQI
16th Jul 2026265 AMAQI
16th Jul 2026186 AMAQI

19°C11/27°C

16th Jul 202667 AMAQI
16th Jul 202668 AMAQI
16th Jul 202689 AMAQI
16th Jul 2026610 AMAQI
16th Jul 20261411 AMAQI
16th Jul 20261212 PMAQI
16th Jul 2026241 PMAQI
16th Jul 2026272 PMAQI
16th Jul 2026263 PMAQI
16th Jul 2026184 PMAQI
16th Jul 2026205 PMAQI
16th Jul 2026266 PMAQI
16th Jul 2026277 PMAQI
16th Jul 2026268 PMAQI
16th Jul 2026199 PMAQI
16th Jul 2026810 PMAQI
16th Jul 20261611 PMAQI
17th Jul 20262012 AMAQI
17th Jul 2026201 AMAQI
17th Jul 2026262 AMAQI
17th Jul 2026283 AMAQI
17th Jul 2026204 AMAQI
17th Jul 2026145 AMAQI
17th Jul 2026166 AMAQI

19°C12/27°C

17th Jul 202697 AMAQI
17th Jul 2026168 AMAQI
17th Jul 2026409 AMAQI
17th Jul 20263310 AMAQI
17th Jul 20263611 AMAQI
17th Jul 20262712 PMAQI
17th Jul 2026381 PMAQI
17th Jul 2026482 PMAQI
17th Jul 2026533 PMAQI
17th Jul 2026464 PMAQI
17th Jul 2026405 PMAQI
17th Jul 2026366 PMAQI
17th Jul 2026407 PMAQI
17th Jul 2026388 PMAQI
17th Jul 2026369 PMAQI
17th Jul 20264210 PMAQI
17th Jul 20264211 PMAQI
18th Jul 20265312 AMAQI
18th Jul 2026461 AMAQI
18th Jul 2026402 AMAQI
18th Jul 2026273 AMAQI
18th Jul 2026274 AMAQI
18th Jul 2026345 AMAQI
18th Jul 2026426 AMAQI

17°C9/26°C

18th Jul 2026407 AMAQI
18th Jul 2026368 AMAQI
18th Jul 2026429 AMAQI
18th Jul 20264410 AMAQI
18th Jul 20264811 AMAQI
18th Jul 20264212 PMAQI
18th Jul 2026461 PMAQI
18th Jul 2026362 PMAQI
18th Jul 2026463 PMAQI
18th Jul 2026464 PMAQI
18th Jul 2026385 PMAQI
18th Jul 2026386 PMAQI
18th Jul 2026447 PMAQI
18th Jul 2026408 PMAQI
18th Jul 2026449 PMAQI
18th Jul 20264610 PMAQI
18th Jul 20263211 PMAQI
19th Jul 20264912 AMAQI
19th Jul 2026511 AMAQI
19th Jul 2026462 AMAQI
19th Jul 2026423 AMAQI
19th Jul 2026474 AMAQI
19th Jul 2026535 AMAQI
19th Jul 2026466 AMAQI

20°C11/30°C

19th Jul 2026387 AMAQI
19th Jul 2026408 AMAQI
19th Jul 2026429 AMAQI
19th Jul 20264210 AMAQI
19th Jul 20264911 AMAQI
19th Jul 20264412 PMAQI
19th Jul 2026401 PMAQI
19th Jul 2026482 PMAQI
19th Jul 2026543 PMAQI
19th Jul 2026524 PMAQI
19th Jul 2026535 PMAQI
19th Jul 2026526 PMAQI
19th Jul 2026507 PMAQI
19th Jul 2026448 PMAQI
19th Jul 2026489 PMAQI
19th Jul 20265010 PMAQI
19th Jul 20265311 PMAQI
20th Jul 20264212 AMAQI
20th Jul 2026361 AMAQI
20th Jul 2026312 AMAQI
20th Jul 2026273 AMAQI
20th Jul 2026294 AMAQI
20th Jul 2026495 AMAQI
20th Jul 2026516 AMAQI

21°C12/30°C

20th Jul 2026537 AMAQI
20th Jul 2026538 AMAQI
20th Jul 2026509 AMAQI
20th Jul 20264910 AMAQI
20th Jul 20264811 AMAQI
20th Jul 20265212 PMAQI
20th Jul 2026211 PMAQI
20th Jul 2026212 PMAQI
20th Jul 2026213 PMAQI
20th Jul 2026214 PMAQI
20th Jul 2026215 PMAQI
20th Jul 2026236 PMAQI
20th Jul 2026237 PMAQI
20th Jul 2026368 PMAQI
20th Jul 2026219 PMAQI
20th Jul 20262310 PMAQI
20th Jul 20262311 PMAQI
21st Jul 20262312 AMAQI
21st Jul 2026251 AMAQI
21st Jul 2026252 AMAQI
21st Jul 2026233 AMAQI
21st Jul 2026234 AMAQI
21st Jul 2026256 AMAQI

21°C12/30°C

21st Jul 2026217 AMAQI
21st Jul 2026348 AMAQI
21st Jul 2026219 AMAQI
21st Jul 20264910 AMAQI
21st Jul 20263611 AMAQI
21st Jul 20265212 PMAQI
21st Jul 2026421 PMAQI
21st Jul 2026292 PMAQI
21st Jul 2026313 PMAQI
21st Jul 2026464 PMAQI
21st Jul 2026585 PMAQI
21st Jul 2026486 PMAQI
21st Jul 2026307 PMAQI
21st Jul 2026308 PMAQI
21st Jul 2026409 PMAQI
21st Jul 20265010 PMAQI
21st Jul 20262111 PMAQI
22nd Jul 20263812 AMAQI
22nd Jul 2026321 AMAQI
22nd Jul 2026322 AMAQI
22nd Jul 2026213 AMAQI
22nd Jul 2026214 AMAQI
22nd Jul 2026275 AMAQI
22nd Jul 2026296 AMAQI

21°C12/31°C

22nd Jul 2026317 AMAQI
22nd Jul 2026318 AMAQI
22nd Jul 2026429 AMAQI
22nd Jul 20265010 AMAQI
22nd Jul 20264211 AMAQI
22nd Jul 20264612 PMAQI
22nd Jul 2026511 PMAQI
22nd Jul 2026422 PMAQI
22nd Jul 2026523 PMAQI
22nd Jul 2026524 PMAQI
22nd Jul 2026365 PMAQI
22nd Jul 2026386 PMAQI
22nd Jul 2026387 PMAQI
22nd Jul 2026368 PMAQI
22nd Jul 2026219 PMAQI
22nd Jul 20263410 PMAQI
22nd Jul 20265211 PMAQI
23rd Jul 20265212 AMAQI
23rd Jul 2026521 AMAQI
23rd Jul 2026422 AMAQI
23rd Jul 2026313 AMAQI
23rd Jul 2026314 AMAQI
23rd Jul 2026275 AMAQI
23rd Jul 2026216 AMAQI

22°C13/32°C

23rd Jul 2026407 AMAQI
23rd Jul 2026368 AMAQI
23rd Jul 2026529 AMAQI
23rd Jul 20265510 AMAQI
23rd Jul 20265411 AMAQI
23rd Jul 20263412 PMAQI
23rd Jul 2026211 PMAQI
23rd Jul 2026212 PMAQI
23rd Jul 2026223 PMAQI
23rd Jul 2026224 PMAQI
23rd Jul 2026515 PMAQI
23rd Jul 2026556 PMAQI
23rd Jul 2026407 PMAQI
23rd Jul 2026448 PMAQI
23rd Jul 2026389 PMAQI
23rd Jul 20263310 PMAQI
23rd Jul 20262711 PMAQI
24th Jul 20264912 AMAQI
24th Jul 2026341 AMAQI
24th Jul 2026482 AMAQI
24th Jul 2026463 AMAQI
24th Jul 2026254 AMAQI
24th Jul 2026255 AMAQI
24th Jul 2026326 AMAQI

21°C13/31°C

24th Jul 2026327 AMAQI
24th Jul 2026428 AMAQI
24th Jul 2026349 AMAQI
24th Jul 20263210 AMAQI
24th Jul 20264011 AMAQI
24th Jul 20264212 PMAQI
24th Jul 2026421 PMAQI
24th Jul 2026382 PMAQI
24th Jul 2026363 PMAQI
24th Jul 2026504 PMAQI
24th Jul 2026515 PMAQI
24th Jul 2026426 PMAQI
24th Jul 2026447 PMAQI
24th Jul 2026508 PMAQI
24th Jul 2026489 PMAQI
24th Jul 20264410 PMAQI
24th Jul 20264411 PMAQI
25th Jul 20264612 AMAQI
25th Jul 2026421 AMAQI
25th Jul 2026422 AMAQI
25th Jul 2026423 AMAQI
25th Jul 2026424 AMAQI
25th Jul 2026405 AMAQI
25th Jul 2026366 AMAQI

16°C10/23°C

25th Jul 2026447 AMAQI
25th Jul 2026428 AMAQI
25th Jul 2026409 AMAQI
25th Jul 20264410 AMAQI
25th Jul 20264611 AMAQI
25th Jul 20264012 PMAQI
25th Jul 2026361 PMAQI
25th Jul 2026452 PMAQI
25th Jul 2026513 PMAQI
25th Jul 2026424 PMAQI
25th Jul 2026385 PMAQI
25th Jul 2026516 PMAQI
25th Jul 2026387 PMAQI
25th Jul 2026278 PMAQI
25th Jul 2026409 PMAQI
25th Jul 20265310 PMAQI
25th Jul 20265511 PMAQI
26th Jul 20264912 AMAQI
26th Jul 2026531 AMAQI
26th Jul 2026462 AMAQI
26th Jul 2026383 AMAQI
26th Jul 2026444 AMAQI
26th Jul 2026515 AMAQI
26th Jul 2026276 AMAQI

16°C9/23°C

26th Jul 2026307 AMAQI
26th Jul 2026368 AMAQI
26th Jul 2026299 AMAQI
26th Jul 20262510 AMAQI
26th Jul 20262511 AMAQI
26th Jul 20263412 PMAQI
26th Jul 2026381 PMAQI
26th Jul 2026442 PMAQI
26th Jul 2026423 PMAQI
26th Jul 2026464 PMAQI
26th Jul 2026465 PMAQI
26th Jul 2026386 PMAQI
26th Jul 2026367 PMAQI
26th Jul 2026368 PMAQI
26th Jul 2026319 PMAQI
26th Jul 20262910 PMAQI
26th Jul 20263111 PMAQI
27th Jul 20263112 AMAQI
27th Jul 2026311 AMAQI
27th Jul 2026332 AMAQI
27th Jul 2026333 AMAQI
27th Jul 2026314 AMAQI
27th Jul 2026335 AMAQI
27th Jul 2026336 AMAQI

17°C7/28°C

27th Jul 2026337 AMAQI
27th Jul 2026318 AMAQI
27th Jul 2026299 AMAQI
27th Jul 20262910 AMAQI
27th Jul 20263111 AMAQI
27th Jul 20263612 PMAQI
27th Jul 2026421 PMAQI
27th Jul 2026422 PMAQI
27th Jul 2026443 PMAQI
27th Jul 2026484 PMAQI
27th Jul 2026405 PMAQI
27th Jul 2026336 PMAQI
27th Jul 2026427 PMAQI
27th Jul 2026448 PMAQI
27th Jul 2026389 PMAQI
27th Jul 20263810 PMAQI
27th Jul 20264011 PMAQI
28th Jul 20264212 AMAQI
28th Jul 2026461 AMAQI
28th Jul 2026442 AMAQI
28th Jul 2026423 AMAQI
28th Jul 2026404 AMAQI
28th Jul 2026315 AMAQI
28th Jul 2026386 AMAQI

22°C13/32°C

28th Jul 2026427 AMAQI
28th Jul 2026348 AMAQI
28th Jul 2026319 AMAQI
28th Jul 20263110 AMAQI
28th Jul 20263611 AMAQI
28th Jul 20264712 PMAQI
28th Jul 2026541 PMAQI
28th Jul 2026532 PMAQI
28th Jul 2026543 PMAQI
28th Jul 2026554 PMAQI
28th Jul 2026425 PMAQI
28th Jul 2026406 PMAQI
28th Jul 2026527 PMAQI
28th Jul 2026588 PMAQI
28th Jul 2026589 PMAQI
28th Jul 20266010 PMAQI
28th Jul 20266311 PMAQI
29th Jul 20264912 AMAQI
29th Jul 2026461 AMAQI
29th Jul 2026462 AMAQI
29th Jul 2026463 AMAQI
29th Jul 2026444 AMAQI
29th Jul 2026365 AMAQI
29th Jul 2026426 AMAQI

25°C16/34°C

29th Jul 2026407 AMAQI
29th Jul 2026388 AMAQI
29th Jul 2026489 AMAQI
29th Jul 20266210 AMAQI
29th Jul 20266311 AMAQI
29th Jul 20264212 PMAQI
29th Jul 2026541 PMAQI
29th Jul 2026422 PMAQI
29th Jul 2026543 PMAQI
29th Jul 2026564 PMAQI
29th Jul 2026585 PMAQI
29th Jul 2026806 PMAQI
29th Jul 2026907 PMAQI
29th Jul 2026508 PMAQI
29th Jul 2026349 PMAQI
29th Jul 20263210 PMAQI
29th Jul 20263011 PMAQI
30th Jul 20263012 AMAQI
30th Jul 2026251 AMAQI
30th Jul 2026252 AMAQI
30th Jul 2026253 AMAQI
30th Jul 2026244 AMAQI
30th Jul 2026255 AMAQI
30th Jul 2026216 AMAQI

24°C16/33°C

30th Jul 2026247 AMAQI
30th Jul 2026298 AMAQI
30th Jul 2026459 AMAQI
30th Jul 20265110 AMAQI
30th Jul 20264511 AMAQI
30th Jul 20262812 PMAQI
30th Jul 2026421 PMAQI
30th Jul 2026532 PMAQI
30th Jul 2026703 PMAQI
30th Jul 20261104 PMAQI
30th Jul 20261055 PMAQI
30th Jul 2026856 PMAQI
30th Jul 2026577 PMAQI
30th Jul 2026518 PMAQI
30th Jul 2026389 PMAQI
30th Jul 20263010 PMAQI
30th Jul 20262111 PMAQI
31st Jul 20262112 AMAQI
31st Jul 2026341 AMAQI
31st Jul 2026382 AMAQI
31st Jul 2026363 AMAQI
31st Jul 2026384 AMAQI
31st Jul 2026345 AMAQI
31st Jul 2026296 AMAQI

21°C13/31°C

31st Jul 2026387 AMAQI
31st Jul 2026278 AMAQI
31st Jul 2026199 AMAQI
31st Jul 20261710 AMAQI
31st Jul 20262311 AMAQI
31st Jul 20262312 PMAQI
31st Jul 2026231 PMAQI
31st Jul 2026192 PMAQI
31st Jul 2026213 PMAQI
31st Jul 2026234 PMAQI
31st Jul 2026125 PMAQI
31st Jul 2026166 PMAQI
31st Jul 2026197 PMAQI
31st Jul 2026218 PMAQI
31st Jul 2026199 PMAQI
31st Jul 20261710 PMAQI
31st Jul 20262311 PMAQI
1st Aug 20262312 AMAQI
1st Aug 2026171 AMAQI
1st Aug 2026212 AMAQI
1st Aug 2026213 AMAQI
1st Aug 2026194 AMAQI
1st Aug 2026125 AMAQI
1st Aug 2026106 AMAQI

20°C11/29°C

1st Aug 2026167 AMAQI
1st Aug 2026198 AMAQI
1st Aug 2026219 AMAQI
1st Aug 20261710 AMAQI
1st Aug 20261711 AMAQI
1st Aug 20261312 PMAQI
1st Aug 2026141 PMAQI
1st Aug 2026142 PMAQI
1st Aug 2026153 PMAQI
1st Aug 2026174 PMAQI
1st Aug 2026155 PMAQI
1st Aug 2026516 PMAQI
1st Aug 2026427 PMAQI
1st Aug 2026428 PMAQI
1st Aug 2026349 PMAQI
1st Aug 20263210 PMAQI
1st Aug 20264211 PMAQI
2nd Aug 20264012 AMAQI
2nd Aug 2026381 AMAQI
2nd Aug 2026272 AMAQI
2nd Aug 2026213 AMAQI
2nd Aug 2026214 AMAQI
2nd Aug 2026215 AMAQI
2nd Aug 2026216 AMAQI

22°C12/31°C

2nd Aug 2026237 AMAQI
2nd Aug 2026218 AMAQI
2nd Aug 2026239 AMAQI
2nd Aug 20262310 AMAQI
2nd Aug 20262311 AMAQI
2nd Aug 20262112 PMAQI
2nd Aug 2026251 PMAQI
2nd Aug 2026232 PMAQI
2nd Aug 2026213 PMAQI
2nd Aug 2026214 PMAQI
2nd Aug 2026325 PMAQI
2nd Aug 2026216 PMAQI
2nd Aug 2026327 PMAQI
2nd Aug 2026298 PMAQI
2nd Aug 2026409 PMAQI
2nd Aug 20263410 PMAQI
2nd Aug 20263411 PMAQI
3rd Aug 20263312 AMAQI
3rd Aug 2026441 AMAQI
3rd Aug 2026532 AMAQI
3rd Aug 2026563 AMAQI
3rd Aug 2026534 AMAQI
3rd Aug 2026445 AMAQI
3rd Aug 2026516 AMAQI

21°C13/29°C

3rd Aug 2026407 AMAQI
7 AM
3rd Aug 2026348 AMAQI
3rd Aug 2026349 AMAQI
3rd Aug 20262910 AMAQI
3rd Aug 20263311 AMAQI
3rd Aug 20263612 PMAQI
3rd Aug 2026521 PMAQI
3rd Aug 2026462 PMAQI
2 PM
3rd Aug 2026423 PMAQI
3rd Aug 2026494 PMAQI
3rd Aug 2026465 PMAQI
3rd Aug 2026386 PMAQI
3rd Aug 2026367 PMAQI
3rd Aug 2026388 PMAQI
3rd Aug 2026389 PMAQI
3rd Aug 20264410 PMAQI
10 PM
3rd Aug 20264011 PMAQI
2 AM
6 AM

19°C12/28°C

Day time
Avg. Highest Time
4 PM - 6 PM

46AQI

3 hours / Day
90 hours / Month
Avg. Lowest Time
7 AM - 8 AM

35AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 4 PM to 6 PM (Avg. 46), while the lowest AQI was between 7 AM to 8 AM (Avg. 35).
Night time
Avg. Highest Time
12 AM - 2 AM

40AQI

3 hours / Day
90 hours / Month
Avg. Lowest Time
6 AM

35AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 2 AM (Avg. 40), while the lowest AQI was between 6 AM to 6 AM (Avg. 35).

2026 Days Vs Air Quality

Chaves, Vila Real, Portugal

2026

87%

184

13%

28

Total number of days with different AQI categories in last 215 days in 2026 (150 days remaining)

Good
184 Days
Moderate
28 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 87%

Health Risk Level:

Low

In 2026, 87% of 215 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

Chaves, Vila Real, Portugal

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
26AQI (US)
2nd January 2026
18AQI (US)
3rd January 2026
18AQI (US)
4th January 2026
21AQI (US)
5th January 2026
19AQI (US)
6th January 2026
26AQI (US)
7th January 2026
26AQI (US)
8th January 2026
29AQI (US)
9th January 2026
22AQI (US)
10th January 2026
30AQI (US)
11th January 2026
24AQI (US)
12th January 2026
19AQI (US)
13th January 2026
15AQI (US)
14th January 2026
18AQI (US)
15th January 2026
23AQI (US)
16th January 2026
25AQI (US)
17th January 2026
20AQI (US)
18th January 2026
26AQI (US)
19th January 2026
25AQI (US)
20th January 2026
18AQI (US)
21st January 2026
21AQI (US)
22nd January 2026
32AQI (US)
23rd January 2026
31AQI (US)
24th January 2026
50AQI (US)
25th January 2026
57AQI (US)
26th January 2026
52AQI (US)
27th January 2026
42AQI (US)
28th January 2026
47AQI (US)
29th January 2026
62AQI (US)
30th January 2026
55AQI (US)
31st January 2026
38AQI (US)
1st February 2026
37AQI (US)
2nd February 2026
29AQI (US)
3rd February 2026
39AQI (US)
4th February 2026
41AQI (US)
5th February 2026
18AQI (US)
6th February 2026
28AQI (US)
7th February 2026
33AQI (US)
8th February 2026
40AQI (US)
9th February 2026
44AQI (US)
10th February 2026
30AQI (US)
11th February 2026
43AQI (US)
12th February 2026
50AQI (US)
13th February 2026
27AQI (US)
14th February 2026
47AQI (US)
15th February 2026
45AQI (US)
16th February 2026
27AQI (US)
17th February 2026
32AQI (US)
18th February 2026
34AQI (US)
19th February 2026
36AQI (US)
20th February 2026
32AQI (US)
21st February 2026
42AQI (US)
22nd February 2026
56AQI (US)
23rd February 2026
56AQI (US)
24th February 2026
57AQI (US)
25th February 2026
50AQI (US)
26th February 2026
34AQI (US)
27th February 2026
34AQI (US)
28th February 2026
20AQI (US)
1st March 2026
31AQI (US)
2nd March 2026
48AQI (US)
3rd March 2026
56AQI (US)
4th March 2026
63AQI (US)
5th March 2026
36AQI (US)
6th March 2026
14AQI (US)
7th March 2026
28AQI (US)
8th March 2026
23AQI (US)
9th March 2026
32AQI (US)
10th March 2026
24AQI (US)
11th March 2026
24AQI (US)
12th March 2026
33AQI (US)
13th March 2026
30AQI (US)
14th March 2026
29AQI (US)
15th March 2026
28AQI (US)
16th March 2026
27AQI (US)
17th March 2026
36AQI (US)
18th March 2026
47AQI (US)
19th March 2026
44AQI (US)
20th March 2026
54AQI (US)
21st March 2026
53AQI (US)
22nd March 2026
61AQI (US)
23rd March 2026
64AQI (US)
24th March 2026
56AQI (US)
25th March 2026
48AQI (US)
26th March 2026
22AQI (US)
27th March 2026
21AQI (US)
28th March 2026
28AQI (US)
29th March 2026
24AQI (US)
30th March 2026
23AQI (US)
31st March 2026
17AQI (US)
1st April 2026
28AQI (US)
2nd April 2026
24AQI (US)
3rd April 2026
23AQI (US)
4th April 2026
24AQI (US)
5th April 2026
28AQI (US)
6th April 2026
43AQI (US)
7th April 2026
45AQI (US)
8th April 2026
34AQI (US)
9th April 2026
38AQI (US)
10th April 2026
56AQI (US)
11th April 2026
37AQI (US)
12th April 2026
13AQI (US)
13th April 2026
22AQI (US)
14th April 2026
26AQI (US)
15th April 2026
29AQI (US)
16th April 2026
27AQI (US)
17th April 2026
18th April 2026
52AQI (US)
19th April 2026
37AQI (US)
20th April 2026
28AQI (US)
21st April 2026
44AQI (US)
22nd April 2026
23rd April 2026
27AQI (US)
24th April 2026
26AQI (US)
25th April 2026
28AQI (US)
26th April 2026
37AQI (US)
27th April 2026
31AQI (US)
28th April 2026
23AQI (US)
29th April 2026
34AQI (US)
30th April 2026
51AQI (US)
1st May 2026
45AQI (US)
2nd May 2026
39AQI (US)
3rd May 2026
25AQI (US)
4th May 2026
45AQI (US)
5th May 2026
28AQI (US)
6th May 2026
27AQI (US)
7th May 2026
23AQI (US)
8th May 2026
23AQI (US)
9th May 2026
10th May 2026
26AQI (US)
11th May 2026
26AQI (US)
12th May 2026
27AQI (US)
13th May 2026
24AQI (US)
14th May 2026
23AQI (US)
15th May 2026
30AQI (US)
16th May 2026
36AQI (US)
17th May 2026
36AQI (US)
18th May 2026
37AQI (US)
19th May 2026
38AQI (US)
20th May 2026
37AQI (US)
21st May 2026
37AQI (US)
22nd May 2026
43AQI (US)
23rd May 2026
42AQI (US)
24th May 2026
45AQI (US)
25th May 2026
37AQI (US)
26th May 2026
40AQI (US)
27th May 2026
57AQI (US)
28th May 2026
27AQI (US)
29th May 2026
35AQI (US)
30th May 2026
34AQI (US)
31st May 2026
26AQI (US)
1st June 2026
21AQI (US)
2nd June 2026
36AQI (US)
3rd June 2026
31AQI (US)
4th June 2026
23AQI (US)
5th June 2026
16AQI (US)
6th June 2026
19AQI (US)
7th June 2026
20AQI (US)
8th June 2026
19AQI (US)
9th June 2026
23AQI (US)
10th June 2026
11AQI (US)
11th June 2026
18AQI (US)
12th June 2026
20AQI (US)
13th June 2026
18AQI (US)
14th June 2026
46AQI (US)
15th June 2026
50AQI (US)
16th June 2026
57AQI (US)
17th June 2026
56AQI (US)
18th June 2026
44AQI (US)
19th June 2026
34AQI (US)
20th June 2026
31AQI (US)
21st June 2026
52AQI (US)
22nd June 2026
55AQI (US)
23rd June 2026
61AQI (US)
24th June 2026
66AQI (US)
25th June 2026
42AQI (US)
26th June 2026
28AQI (US)
27th June 2026
20AQI (US)
28th June 2026
16AQI (US)
29th June 2026
17AQI (US)
30th June 2026
19AQI (US)
1st July 2026
20AQI (US)
2nd July 2026
20AQI (US)
3rd July 2026
20AQI (US)
4th July 2026
19AQI (US)
5th July 2026
23AQI (US)
6th July 2026
46AQI (US)
7th July 2026
61AQI (US)
8th July 2026
57AQI (US)
9th July 2026
61AQI (US)
10th July 2026
64AQI (US)
11th July 2026
49AQI (US)
12th July 2026
42AQI (US)
13th July 2026
28AQI (US)
14th July 2026
34AQI (US)
15th July 2026
36AQI (US)
16th July 2026
19AQI (US)
17th July 2026
32AQI (US)
18th July 2026
41AQI (US)
19th July 2026
47AQI (US)
20th July 2026
34AQI (US)
21st July 2026
34AQI (US)
22nd July 2026
37AQI (US)
23rd July 2026
38AQI (US)
24th July 2026
40AQI (US)
25th July 2026
43AQI (US)
26th July 2026
38AQI (US)
27th July 2026
36AQI (US)
28th July 2026
46AQI (US)
29th July 2026
49AQI (US)
30th July 2026
44AQI (US)
31st July 2026
25AQI (US)
1st August 2026
23AQI (US)
2nd August 2026
26AQI (US)
3rd August 2026
42AQI (US)
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

30AQI (US)

38AQI (US)

36AQI (US)

33AQI (US)

34AQI (US)

32AQI (US)

38AQI (US)

30AQI (US)

No. of days

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

202634AQI (US)

27
4
25
3
24
7
25
3
29
1
24
6
27
4
3
184
28

Highest AQI (US) recorded in

February

38AQI (US)

Lowest AQI (US) recorded in

August

30AQI (US)

202529AQI (US)

30
1
28
31
30
31
27
3
31
18
13
30
17
14
30
31
334
31

Highest AQI (US) recorded in

August

46AQI (US)

Lowest AQI (US) recorded in

April

19AQI (US)

202428AQI (US)

30
25
4
30
1
30
31
30
31
30
1
27
3
30
1
29
1
28
3
351
14

Highest AQI (US) recorded in

February

34AQI (US)

Lowest AQI (US) recorded in

October

22AQI (US)

202327AQI (US)

30
25
3
31
30
31
30
31
29
2
30
30
1
28
1
31
356
7

Highest AQI (US) recorded in

February

35AQI (US)

Lowest AQI (US) recorded in

July

21AQI (US)

202233AQI (US)

29
1
19
3
25
4
2
30
30
1
26
3
1
13
9
1
1
28
28
3
30
31
290
24
2
2

Highest AQI (US) recorded in

July

51AQI (US)

Lowest AQI (US) recorded in

November

24AQI (US)

202131AQI (US)

28
1
26
2
23
8
27
3
31
30
31
29
2
25
3
1
1
31
30
31
342
19
1
1

Highest AQI (US) recorded in

September

42AQI (US)

Lowest AQI (US) recorded in

December

22AQI (US)

202030AQI (US)

11
2
21
17
1
28
2
26
4
30
1
30
31
30
31
255
10

Highest AQI (US) recorded in

March

42AQI (US)

Lowest AQI (US) recorded in

December

23AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2026(Avg.)
34AQI (US)
Least Polluted Year Recorded
2023(Avg.)
27AQI (US)

Chaves's annual 2026 AQI (US) (34) shows an average percentage change of 15.1% (worsened AQI (US)) compared to previous years: 2020 (30), 2021 (31), 2022 (33), 2023 (27), 2024 (28), 2025 (29).