Country Background
HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Leon Iv, Leon, Castille Leon, Spain 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+

October Air Quality Analysis

Leon Iv, Leon, Castille Leon, Spain

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
5th Oct 2022
80AQI
Lowest AQI recorded on
26th Oct 2025
15AQI

Same Day Analysis (1st October):
On this day, AQI across the 5 years varied significantly: 2026 ranks 1st highest AQI at 35 of Good air quality on the same day.

Day & Night AQI Trend: 30th Sep - 1st Oct 2026

Leon Iv, Leon, Castille Leon, Spain

AQI
Day
Night
.

8 AM30th Sep 2026

8 PM

7 AM1st Oct 2026

Day time
Avg. Highest Time
12PM30th Sep

52AQI

Avg. Lowest Time
4PM30th Sep

23AQI

Night time
Avg. Highest Time
6AM1st Oct

42AQI

Avg. Lowest Time
12AM1st Oct

21AQI

In the last 24 hours,

Leon Iv's AQI reached its highest point of 52 at 12 PM during the Day, while the lowest point, 21, was recorded at 12 AM during the Night between 30th Sep and 1st Oct 2026.

Day & Night AQI Trend : Sep - Oct 2026

Leon Iv, Leon, Castille Leon, Spain

SepOct
02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 01st01st
Day
Night
2nd Sep 2026278 AMAQI
2nd Sep 2026279 AMAQI
2nd Sep 20262710 AMAQI
2nd Sep 20262111 AMAQI
2nd Sep 20262512 PMAQI
2nd Sep 2026421 PMAQI
2nd Sep 2026252 PMAQI
2nd Sep 2026253 PMAQI
2nd Sep 2026294 PMAQI
2nd Sep 2026325 PMAQI
2nd Sep 2026406 PMAQI
2nd Sep 2026447 PMAQI
2nd Sep 2026348 PMAQI
2nd Sep 2026279 PMAQI
2nd Sep 20262910 PMAQI
2nd Sep 20262711 PMAQI
3rd Sep 20263312 AMAQI
3rd Sep 2026211 AMAQI
3rd Sep 2026302 AMAQI
3rd Sep 2026253 AMAQI
3rd Sep 2026494 AMAQI
3rd Sep 2026345 AMAQI
3rd Sep 2026236 AMAQI
3rd Sep 2026347 AMAQI

22°C15/30°C

3rd Sep 2026368 AMAQI
3rd Sep 2026329 AMAQI
3rd Sep 20263310 AMAQI
3rd Sep 20264911 AMAQI
3rd Sep 20262512 PMAQI
3rd Sep 2026211 PMAQI
3rd Sep 2026212 PMAQI
3rd Sep 2026213 PMAQI
3rd Sep 2026254 PMAQI
3rd Sep 2026255 PMAQI
3rd Sep 2026256 PMAQI
3rd Sep 2026257 PMAQI
3rd Sep 2026258 PMAQI
3rd Sep 2026349 PMAQI
3rd Sep 20264810 PMAQI
3rd Sep 20264211 PMAQI
4th Sep 20265312 AMAQI
4th Sep 2026541 AMAQI
4th Sep 2026402 AMAQI
4th Sep 2026503 AMAQI
4th Sep 2026504 AMAQI
4th Sep 2026405 AMAQI
4th Sep 2026236 AMAQI
4th Sep 2026257 AMAQI

24°C16/33°C

4th Sep 2026428 AMAQI
4th Sep 2026319 AMAQI
4th Sep 20263810 AMAQI
4th Sep 20264211 AMAQI
4th Sep 20262912 PMAQI
4th Sep 2026211 PMAQI
4th Sep 2026422 PMAQI
4th Sep 2026503 PMAQI
4th Sep 2026494 PMAQI
4th Sep 2026475 PMAQI
4th Sep 2026386 PMAQI
4th Sep 2026367 PMAQI
4th Sep 2026428 PMAQI
4th Sep 2026529 PMAQI
4th Sep 20264910 PMAQI
4th Sep 20264811 PMAQI
5th Sep 20265112 AMAQI
5th Sep 2026511 AMAQI
5th Sep 2026522 AMAQI
5th Sep 2026343 AMAQI
5th Sep 2026234 AMAQI
5th Sep 2026325 AMAQI
5th Sep 2026366 AMAQI
5th Sep 2026427 AMAQI

26°C18/35°C

5th Sep 2026388 AMAQI
5th Sep 2026339 AMAQI
5th Sep 20263810 AMAQI
5th Sep 20263311 AMAQI
5th Sep 20264012 PMAQI
5th Sep 2026491 PMAQI
5th Sep 2026522 PMAQI
5th Sep 2026513 PMAQI
5th Sep 2026514 PMAQI
5th Sep 2026465 PMAQI
5th Sep 2026486 PMAQI
5th Sep 2026467 PMAQI
5th Sep 2026368 PMAQI
5th Sep 2026319 PMAQI
5th Sep 20265210 PMAQI
5th Sep 20265811 PMAQI
6th Sep 20265712 AMAQI
6th Sep 2026521 AMAQI
6th Sep 2026532 AMAQI
6th Sep 2026503 AMAQI
6th Sep 2026464 AMAQI
6th Sep 2026365 AMAQI
6th Sep 2026296 AMAQI
6th Sep 2026277 AMAQI

26°C20/32°C

6th Sep 2026298 AMAQI
6th Sep 2026319 AMAQI
6th Sep 20264010 AMAQI
6th Sep 20264811 AMAQI
6th Sep 20265012 PMAQI
6th Sep 2026421 PMAQI
6th Sep 2026322 PMAQI
6th Sep 2026243 PMAQI
6th Sep 2026214 PMAQI
6th Sep 2026215 PMAQI
6th Sep 2026316 PMAQI
6th Sep 2026367 PMAQI
6th Sep 2026388 PMAQI
6th Sep 2026429 PMAQI
6th Sep 20265010 PMAQI
6th Sep 20264911 PMAQI
7th Sep 20264612 AMAQI
7th Sep 2026511 AMAQI
7th Sep 2026362 AMAQI
7th Sep 2026233 AMAQI
7th Sep 2026214 AMAQI
7th Sep 2026235 AMAQI
7th Sep 2026276 AMAQI
7th Sep 2026337 AMAQI

24°C18/33°C

7th Sep 2026318 AMAQI
7th Sep 2026259 AMAQI
7th Sep 20262110 AMAQI
7th Sep 20262111 AMAQI
7th Sep 20262512 PMAQI
7th Sep 2026231 PMAQI
7th Sep 2026362 PMAQI
7th Sep 2026533 PMAQI
7th Sep 2026404 PMAQI
7th Sep 2026385 PMAQI
7th Sep 2026256 PMAQI
7th Sep 2026257 PMAQI
7th Sep 2026258 PMAQI
7th Sep 2026329 PMAQI
7th Sep 20262710 PMAQI
7th Sep 20263111 PMAQI
8th Sep 20263212 AMAQI
8th Sep 2026231 AMAQI
8th Sep 2026252 AMAQI
8th Sep 2026253 AMAQI
8th Sep 2026324 AMAQI
8th Sep 2026235 AMAQI
8th Sep 2026236 AMAQI
8th Sep 2026327 AMAQI

23°C17/32°C

8th Sep 2026348 AMAQI
8th Sep 2026299 AMAQI
8th Sep 20262110 AMAQI
8th Sep 20263211 AMAQI
8th Sep 20263612 PMAQI
8th Sep 2026421 PMAQI
8th Sep 2026422 PMAQI
8th Sep 2026293 PMAQI
8th Sep 2026294 PMAQI
8th Sep 2026295 PMAQI
8th Sep 2026316 PMAQI
8th Sep 2026257 PMAQI
8th Sep 2026258 PMAQI
8th Sep 2026279 PMAQI
8th Sep 20262310 PMAQI
8th Sep 20262311 PMAQI
9th Sep 20261412 AMAQI
9th Sep 2026141 AMAQI
9th Sep 2026172 AMAQI
9th Sep 2026193 AMAQI
9th Sep 2026274 AMAQI
9th Sep 2026275 AMAQI
9th Sep 2026296 AMAQI
9th Sep 2026257 AMAQI

19°C15/27°C

9th Sep 2026258 AMAQI
9th Sep 2026279 AMAQI
9th Sep 20263610 AMAQI
9th Sep 20263411 AMAQI
9th Sep 20262512 PMAQI
9th Sep 2026361 PMAQI
9th Sep 2026302 PMAQI
9th Sep 2026193 PMAQI
9th Sep 2026444 PMAQI
9th Sep 2026525 PMAQI
9th Sep 2026556 PMAQI
9th Sep 2026387 PMAQI
9th Sep 2026348 PMAQI
9th Sep 2026329 PMAQI
9th Sep 2026810 PMAQI
9th Sep 20262411 PMAQI
10th Sep 20264012 AMAQI
10th Sep 2026421 AMAQI
10th Sep 2026322 AMAQI
10th Sep 2026423 AMAQI
10th Sep 2026384 AMAQI
10th Sep 2026335 AMAQI
10th Sep 2026296 AMAQI
10th Sep 2026367 AMAQI

16°C10/23°C

10th Sep 2026368 AMAQI
10th Sep 2026429 AMAQI
10th Sep 20263810 AMAQI
10th Sep 20262711 AMAQI
10th Sep 20263412 PMAQI
10th Sep 2026401 PMAQI
10th Sep 2026212 PMAQI
10th Sep 2026533 PMAQI
10th Sep 2026494 PMAQI
10th Sep 2026385 PMAQI
10th Sep 2026426 PMAQI
10th Sep 2026327 PMAQI
10th Sep 2026368 PMAQI
10th Sep 2026409 PMAQI
10th Sep 20263010 PMAQI
10th Sep 20263211 PMAQI
11th Sep 20263212 AMAQI
11th Sep 2026311 AMAQI
11th Sep 2026232 AMAQI
11th Sep 2026313 AMAQI
11th Sep 2026544 AMAQI
11th Sep 2026335 AMAQI
11th Sep 2026386 AMAQI
11th Sep 2026367 AMAQI

16°C11/24°C

11th Sep 2026338 AMAQI
11th Sep 2026329 AMAQI
11th Sep 20262510 AMAQI
11th Sep 20262711 AMAQI
11th Sep 20262712 PMAQI
11th Sep 2026341 PMAQI
11th Sep 2026362 PMAQI
11th Sep 2026213 PMAQI
11th Sep 2026274 PMAQI
11th Sep 2026385 PMAQI
11th Sep 2026316 PMAQI
11th Sep 2026347 PMAQI
11th Sep 2026388 PMAQI
11th Sep 2026369 PMAQI
11th Sep 20263110 PMAQI
11th Sep 20263611 PMAQI
12th Sep 20263312 AMAQI
12th Sep 2026381 AMAQI
12th Sep 2026312 AMAQI
12th Sep 2026383 AMAQI
12th Sep 2026384 AMAQI
12th Sep 2026445 AMAQI
12th Sep 2026406 AMAQI
12th Sep 2026347 AMAQI

19°C13/27°C

12th Sep 2026298 AMAQI
12th Sep 2026299 AMAQI
12th Sep 20263110 AMAQI
12th Sep 20263111 AMAQI
12th Sep 20264012 PMAQI
12th Sep 2026441 PMAQI
12th Sep 2026382 PMAQI
12th Sep 2026363 PMAQI
12th Sep 2026274 PMAQI
12th Sep 2026275 PMAQI
12th Sep 2026276 PMAQI
12th Sep 2026307 PMAQI
12th Sep 2026218 PMAQI
12th Sep 2026329 PMAQI
12th Sep 20263411 PMAQI
13th Sep 20262512 AMAQI
13th Sep 2026311 AMAQI
13th Sep 2026312 AMAQI
13th Sep 2026423 AMAQI
13th Sep 2026274 AMAQI
13th Sep 2026865 AMAQI
13th Sep 2026586 AMAQI
13th Sep 2026387 AMAQI

20°C13/28°C

13th Sep 2026428 AMAQI
13th Sep 2026319 AMAQI
13th Sep 20264210 AMAQI
13th Sep 20263611 AMAQI
13th Sep 20263412 PMAQI
13th Sep 2026381 PMAQI
13th Sep 2026122 PMAQI
13th Sep 202683 PMAQI
13th Sep 2026164 PMAQI
13th Sep 2026255 PMAQI
13th Sep 2026276 PMAQI
13th Sep 2026257 PMAQI
13th Sep 2026268 PMAQI
13th Sep 2026299 PMAQI
13th Sep 20262310 PMAQI
13th Sep 20262311 PMAQI
14th Sep 20263612 AMAQI
14th Sep 2026381 AMAQI
14th Sep 2026302 AMAQI
14th Sep 2026233 AMAQI
14th Sep 2026444 AMAQI
14th Sep 2026385 AMAQI
14th Sep 2026426 AMAQI
14th Sep 2026407 AMAQI

21°C14/30°C

14th Sep 2026388 AMAQI
14th Sep 2026409 AMAQI
14th Sep 2026810 AMAQI
14th Sep 2026811 AMAQI
14th Sep 20261012 PMAQI
14th Sep 2026141 PMAQI
14th Sep 2026222 PMAQI
14th Sep 2026233 PMAQI
14th Sep 2026344 PMAQI
14th Sep 2026275 PMAQI
14th Sep 2026296 PMAQI
14th Sep 2026167 PMAQI
14th Sep 2026148 PMAQI
14th Sep 2026249 PMAQI
14th Sep 20262310 PMAQI
14th Sep 20263011 PMAQI
15th Sep 20264012 AMAQI
15th Sep 2026381 AMAQI
15th Sep 2026252 AMAQI
15th Sep 2026303 AMAQI
15th Sep 2026404 AMAQI
15th Sep 2026365 AMAQI
15th Sep 2026386 AMAQI
15th Sep 2026387 AMAQI

24°C16/32°C

15th Sep 2026328 AMAQI
15th Sep 2026329 AMAQI
15th Sep 20263410 AMAQI
15th Sep 20262911 AMAQI
15th Sep 20262112 PMAQI
15th Sep 2026341 PMAQI
15th Sep 2026402 PMAQI
15th Sep 2026363 PMAQI
15th Sep 2026254 PMAQI
15th Sep 2026385 PMAQI
15th Sep 2026426 PMAQI
15th Sep 2026407 PMAQI
15th Sep 2026388 PMAQI
15th Sep 2026349 PMAQI
15th Sep 20264410 PMAQI
15th Sep 20262311 PMAQI
16th Sep 20261412 AMAQI
16th Sep 2026121 AMAQI
16th Sep 2026142 AMAQI
16th Sep 2026173 AMAQI
16th Sep 2026194 AMAQI
16th Sep 2026295 AMAQI
16th Sep 2026296 AMAQI
16th Sep 2026347 AMAQI

23°C16/32°C

16th Sep 2026328 AMAQI
16th Sep 2026339 AMAQI
16th Sep 20262710 AMAQI
16th Sep 20262911 AMAQI
16th Sep 20262912 PMAQI
16th Sep 2026291 PMAQI
16th Sep 2026202 PMAQI
16th Sep 2026303 PMAQI
16th Sep 2026364 PMAQI
16th Sep 2026405 PMAQI
16th Sep 2026296 PMAQI
16th Sep 2026277 PMAQI
16th Sep 2026348 PMAQI
16th Sep 2026429 PMAQI
16th Sep 20265210 PMAQI
16th Sep 20262711 PMAQI
17th Sep 20262112 AMAQI
17th Sep 2026211 AMAQI
17th Sep 2026212 AMAQI
17th Sep 2026293 AMAQI
17th Sep 2026364 AMAQI
17th Sep 2026475 AMAQI
17th Sep 2026486 AMAQI
17th Sep 2026367 AMAQI

16°C11/22°C

17th Sep 2026318 AMAQI
17th Sep 2026339 AMAQI
17th Sep 20263610 AMAQI
17th Sep 20263611 AMAQI
17th Sep 20263112 PMAQI
17th Sep 2026311 PMAQI
17th Sep 2026382 PMAQI
17th Sep 2026443 PMAQI
17th Sep 2026464 PMAQI
17th Sep 2026385 PMAQI
17th Sep 2026296 PMAQI
17th Sep 2026367 PMAQI
17th Sep 2026258 PMAQI
17th Sep 2026299 PMAQI
17th Sep 20263410 PMAQI
17th Sep 20263611 PMAQI
18th Sep 20263012 AMAQI
18th Sep 2026321 AMAQI
18th Sep 2026212 AMAQI
18th Sep 2026213 AMAQI
18th Sep 2026274 AMAQI
18th Sep 2026235 AMAQI
18th Sep 2026236 AMAQI
18th Sep 2026257 AMAQI

14°C7/23°C

18th Sep 2026328 AMAQI
18th Sep 2026389 AMAQI
18th Sep 20262310 AMAQI
18th Sep 20262911 AMAQI
18th Sep 20262712 PMAQI
18th Sep 2026211 PMAQI
18th Sep 2026252 PMAQI
18th Sep 2026293 PMAQI
18th Sep 2026304 PMAQI
18th Sep 2026255 PMAQI
18th Sep 2026386 PMAQI
18th Sep 2026297 PMAQI
18th Sep 2026238 PMAQI
18th Sep 2026259 PMAQI
18th Sep 20263610 PMAQI
18th Sep 20264611 PMAQI
19th Sep 20262912 AMAQI
19th Sep 2026401 AMAQI
19th Sep 2026422 AMAQI
19th Sep 2026523 AMAQI
19th Sep 2026464 AMAQI
19th Sep 2026265 AMAQI
19th Sep 2026246 AMAQI
19th Sep 2026317 AMAQI

15°C9/22°C

19th Sep 2026408 AMAQI
19th Sep 2026429 AMAQI
19th Sep 20264610 AMAQI
19th Sep 20264211 AMAQI
19th Sep 20263612 PMAQI
19th Sep 2026291 PMAQI
19th Sep 2026422 PMAQI
19th Sep 2026403 PMAQI
19th Sep 2026384 PMAQI
19th Sep 2026345 PMAQI
19th Sep 2026386 PMAQI
19th Sep 2026367 PMAQI
19th Sep 2026298 PMAQI
19th Sep 2026429 PMAQI
19th Sep 20262910 PMAQI
19th Sep 20263411 PMAQI
20th Sep 20264212 AMAQI
20th Sep 2026211 AMAQI
20th Sep 2026292 AMAQI
20th Sep 2026483 AMAQI
20th Sep 2026384 AMAQI
20th Sep 2026495 AMAQI
20th Sep 2026506 AMAQI
20th Sep 2026427 AMAQI

18°C11/26°C

20th Sep 2026428 AMAQI
20th Sep 2026389 AMAQI
20th Sep 20264810 AMAQI
20th Sep 20264411 AMAQI
20th Sep 20265112 PMAQI
20th Sep 2026401 PMAQI
20th Sep 2026422 PMAQI
20th Sep 2026483 PMAQI
20th Sep 2026324 PMAQI
20th Sep 2026325 PMAQI
20th Sep 2026236 PMAQI
20th Sep 2026257 PMAQI
20th Sep 2026238 PMAQI
20th Sep 2026279 PMAQI
20th Sep 20262510 PMAQI
20th Sep 20263311 PMAQI
21st Sep 20265312 AMAQI
21st Sep 2026521 AMAQI
21st Sep 2026562 AMAQI
21st Sep 2026423 AMAQI
21st Sep 2026384 AMAQI
21st Sep 2026405 AMAQI
21st Sep 2026556 AMAQI
21st Sep 2026487 AMAQI

20°C14/28°C

21st Sep 2026568 AMAQI
21st Sep 2026559 AMAQI
21st Sep 20263610 AMAQI
21st Sep 20264011 AMAQI
21st Sep 20263812 PMAQI
21st Sep 2026481 PMAQI
21st Sep 2026522 PMAQI
21st Sep 2026503 PMAQI
21st Sep 2026404 PMAQI
21st Sep 2026275 PMAQI
21st Sep 2026296 PMAQI
21st Sep 2026327 PMAQI
21st Sep 2026428 PMAQI
21st Sep 2026319 PMAQI
21st Sep 20262910 PMAQI
21st Sep 20262511 PMAQI
22nd Sep 20262512 AMAQI
22nd Sep 2026501 AMAQI
22nd Sep 2026462 AMAQI
22nd Sep 2026463 AMAQI
22nd Sep 2026464 AMAQI
22nd Sep 2026465 AMAQI
22nd Sep 2026466 AMAQI
22nd Sep 2026257 AMAQI

21°C15/30°C

22nd Sep 2026278 AMAQI
22nd Sep 2026319 AMAQI
22nd Sep 20263810 AMAQI
22nd Sep 20263111 AMAQI
22nd Sep 20263612 PMAQI
22nd Sep 2026381 PMAQI
22nd Sep 2026462 PMAQI
22nd Sep 2026283 PMAQI
22nd Sep 2026384 PMAQI
22nd Sep 2026405 PMAQI
22nd Sep 2026316 PMAQI
22nd Sep 2026277 PMAQI
22nd Sep 2026348 PMAQI
22nd Sep 2026409 PMAQI
22nd Sep 20264610 PMAQI
22nd Sep 20264611 PMAQI
23rd Sep 20264212 AMAQI
23rd Sep 2026341 AMAQI
23rd Sep 2026362 AMAQI
23rd Sep 2026363 AMAQI
23rd Sep 2026254 AMAQI
23rd Sep 2026385 AMAQI
23rd Sep 2026296 AMAQI
23rd Sep 2026277 AMAQI

21°C14/31°C

23rd Sep 2026368 AMAQI
23rd Sep 2026409 AMAQI
23rd Sep 20263410 AMAQI
23rd Sep 20262911 AMAQI
23rd Sep 20263412 PMAQI
23rd Sep 2026341 PMAQI
23rd Sep 2026452 PMAQI
23rd Sep 2026403 PMAQI
23rd Sep 2026464 PMAQI
23rd Sep 2026335 PMAQI
23rd Sep 2026386 PMAQI
23rd Sep 2026257 PMAQI
23rd Sep 2026408 PMAQI
23rd Sep 2026339 PMAQI
23rd Sep 20262710 PMAQI
23rd Sep 20264611 PMAQI
24th Sep 20263612 AMAQI
24th Sep 2026361 AMAQI
24th Sep 2026252 AMAQI
24th Sep 2026463 AMAQI
24th Sep 2026254 AMAQI
24th Sep 2026275 AMAQI
24th Sep 2026466 AMAQI
24th Sep 2026257 AMAQI

22°C15/30°C

24th Sep 2026428 AMAQI
24th Sep 2026299 AMAQI
24th Sep 20262910 AMAQI
24th Sep 20262511 AMAQI
24th Sep 20262512 PMAQI
24th Sep 2026381 PMAQI
24th Sep 2026542 PMAQI
24th Sep 2026383 PMAQI
24th Sep 2026344 PMAQI
24th Sep 2026315 PMAQI
24th Sep 2026256 PMAQI
24th Sep 2026257 PMAQI
24th Sep 2026298 PMAQI
24th Sep 2026389 PMAQI
24th Sep 20264410 PMAQI
24th Sep 20265611 PMAQI
25th Sep 20265112 AMAQI
25th Sep 2026281 AMAQI
25th Sep 2026312 AMAQI
25th Sep 2026293 AMAQI
25th Sep 2026294 AMAQI
25th Sep 2026255 AMAQI
25th Sep 2026296 AMAQI
25th Sep 2026367 AMAQI

22°C15/32°C

25th Sep 2026368 AMAQI
25th Sep 2026219 AMAQI
25th Sep 20262110 AMAQI
25th Sep 20262311 AMAQI
25th Sep 20262312 PMAQI
25th Sep 2026401 PMAQI
25th Sep 2026442 PMAQI
25th Sep 2026363 PMAQI
25th Sep 2026364 PMAQI
25th Sep 2026485 PMAQI
25th Sep 2026426 PMAQI
25th Sep 2026217 PMAQI
25th Sep 2026218 PMAQI
25th Sep 2026219 PMAQI
25th Sep 20263210 PMAQI
25th Sep 20262111 PMAQI
26th Sep 20263412 AMAQI
26th Sep 2026221 AMAQI
26th Sep 2026242 AMAQI
26th Sep 2026333 AMAQI
26th Sep 2026304 AMAQI
26th Sep 2026325 AMAQI
26th Sep 2026326 AMAQI
26th Sep 2026237 AMAQI

21°C15/30°C

26th Sep 2026258 AMAQI
26th Sep 2026259 AMAQI
26th Sep 20262510 AMAQI
26th Sep 20263411 AMAQI
26th Sep 20263212 PMAQI
26th Sep 2026321 PMAQI
26th Sep 2026382 PMAQI
26th Sep 2026403 PMAQI
26th Sep 2026324 PMAQI
26th Sep 2026275 PMAQI
26th Sep 2026256 PMAQI
26th Sep 2026257 PMAQI
26th Sep 2026258 PMAQI
26th Sep 2026259 PMAQI
26th Sep 20262110 PMAQI
26th Sep 20262511 PMAQI
27th Sep 20263012 AMAQI
27th Sep 2026341 AMAQI
27th Sep 2026282 AMAQI
27th Sep 2026253 AMAQI
27th Sep 2026234 AMAQI
27th Sep 2026235 AMAQI
27th Sep 2026256 AMAQI
27th Sep 2026257 AMAQI

19°C13/28°C

27th Sep 2026328 AMAQI
27th Sep 2026369 AMAQI
27th Sep 20264210 AMAQI
27th Sep 20264011 AMAQI
27th Sep 20264212 PMAQI
27th Sep 2026401 PMAQI
27th Sep 2026402 PMAQI
27th Sep 2026363 PMAQI
27th Sep 2026274 PMAQI
27th Sep 2026275 PMAQI
27th Sep 2026276 PMAQI
27th Sep 2026257 PMAQI
27th Sep 2026258 PMAQI
27th Sep 2026259 PMAQI
27th Sep 20262710 PMAQI
27th Sep 20263411 PMAQI
28th Sep 20264012 AMAQI
28th Sep 2026441 AMAQI
28th Sep 2026382 AMAQI
28th Sep 2026383 AMAQI
28th Sep 2026384 AMAQI
28th Sep 2026285 AMAQI
28th Sep 2026296 AMAQI
28th Sep 2026297 AMAQI

21°C15/28°C

28th Sep 2026278 AMAQI
28th Sep 2026299 AMAQI
28th Sep 20263410 AMAQI
28th Sep 20263611 AMAQI
28th Sep 20263812 PMAQI
28th Sep 2026401 PMAQI
28th Sep 2026422 PMAQI
28th Sep 2026703 PMAQI
28th Sep 2026764 PMAQI
28th Sep 2026525 PMAQI
28th Sep 2026506 PMAQI
28th Sep 2026507 PMAQI
28th Sep 2026508 PMAQI
28th Sep 2026509 PMAQI
28th Sep 20264610 PMAQI
28th Sep 20264211 PMAQI
29th Sep 20262712 AMAQI
29th Sep 2026231 AMAQI
29th Sep 2026232 AMAQI
29th Sep 2026213 AMAQI
29th Sep 2026304 AMAQI
29th Sep 2026405 AMAQI
29th Sep 2026446 AMAQI
29th Sep 2026447 AMAQI

19°C15/25°C

29th Sep 2026328 AMAQI
29th Sep 2026239 AMAQI
29th Sep 20262910 AMAQI
29th Sep 20262911 AMAQI
29th Sep 20262912 PMAQI
29th Sep 2026271 PMAQI
29th Sep 2026442 PMAQI
29th Sep 2026233 PMAQI
29th Sep 2026274 PMAQI
29th Sep 2026365 PMAQI
29th Sep 2026426 PMAQI
29th Sep 2026367 PMAQI
29th Sep 2026388 PMAQI
29th Sep 2026369 PMAQI
29th Sep 20263610 PMAQI
29th Sep 20263811 PMAQI
30th Sep 20264412 AMAQI
30th Sep 2026501 AMAQI
30th Sep 2026512 AMAQI
30th Sep 2026423 AMAQI
30th Sep 2026444 AMAQI
30th Sep 2026465 AMAQI
30th Sep 2026406 AMAQI
30th Sep 2026427 AMAQI

16°C13/20°C

30th Sep 2026408 AMAQI
30th Sep 2026409 AMAQI
30th Sep 20264010 AMAQI
30th Sep 20264811 AMAQI
30th Sep 20265212 PMAQI
30th Sep 2026481 PMAQI
30th Sep 2026492 PMAQI
30th Sep 2026443 PMAQI
30th Sep 2026234 PMAQI
30th Sep 2026295 PMAQI
30th Sep 2026336 PMAQI
30th Sep 2026367 PMAQI
30th Sep 2026278 PMAQI
30th Sep 2026259 PMAQI
30th Sep 20262510 PMAQI
30th Sep 20262511 PMAQI
1st Oct 20262112 AMAQI
1st Oct 2026361 AMAQI
1st Oct 2026272 AMAQI
1st Oct 2026253 AMAQI
1st Oct 2026254 AMAQI
1st Oct 2026385 AMAQI
1st Oct 2026426 AMAQI
1st Oct 2026387 AMAQI

17°C14/21°C

1st Oct 2026338 AMAQI
8 AM
1st Oct 2026369 AMAQI
1st Oct 20263110 AMAQI
1st Oct 20263411 AMAQI
1st Oct 20264212 PMAQI
1st Oct 2026441 PMAQI
1st Oct 2026442 PMAQI
2 PM
1st Oct 2026463 PMAQI
1st Oct 2026484 PMAQI
1st Oct 2026405 PMAQI
1st Oct 2026336 PMAQI
1st Oct 2026337 PMAQI
1st Oct 2026388 PMAQI
8 PM
1st Oct 2026299 PMAQI
1st Oct 20263310 PMAQI
1st Oct 20263311 PMAQI
2 AM
7 AM

14°C9/21°C

Day time
Avg. Highest Time
2 PM - 6 PM

36AQI

5 hours / Day
150 hours / Month
Avg. Lowest Time
7 PM - 8 PM

31AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 2 PM to 6 PM (Avg. 36), while the lowest AQI was between 7 PM to 8 PM (Avg. 31).
Night time
Avg. Highest Time
12 AM - 1 AM

36AQI

2 hours / Day
60 hours / Month
Avg. Lowest Time
2 AM

32AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 1 AM (Avg. 36), while the lowest AQI was between 2 AM to 2 AM (Avg. 32).

2026 Days Vs Air Quality

Leon Iv, Leon, Castille Leon, Spain

2026

93%

253

7%

18

Total number of days with different AQI categories in last 274 days in 2026 (91 days remaining)

Good
253 Days
Moderate
18 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 93%

Health Risk Level:

Very Low

In 2026, 93% of 274 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.

Annual Air Quality Insights

Leon Iv, Leon, Castille Leon, Spain

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
42AQI (US)
2nd January 2026
40AQI (US)
3rd January 2026
42AQI (US)
4th January 2026
23AQI (US)
5th January 2026
22AQI (US)
6th January 2026
25AQI (US)
7th January 2026
37AQI (US)
8th January 2026
35AQI (US)
9th January 2026
11AQI (US)
10th January 2026
17AQI (US)
11th January 2026
36AQI (US)
12th January 2026
31AQI (US)
13th January 2026
25AQI (US)
14th January 2026
18AQI (US)
15th January 2026
26AQI (US)
16th January 2026
28AQI (US)
17th January 2026
27AQI (US)
18th January 2026
17AQI (US)
19th January 2026
24AQI (US)
20th January 2026
39AQI (US)
21st January 2026
26AQI (US)
22nd January 2026
23AQI (US)
23rd January 2026
37AQI (US)
24th January 2026
34AQI (US)
25th January 2026
33AQI (US)
26th January 2026
43AQI (US)
27th January 2026
25AQI (US)
28th January 2026
30AQI (US)
29th January 2026
36AQI (US)
30th January 2026
36AQI (US)
31st January 2026
34AQI (US)
1st February 2026
35AQI (US)
2nd February 2026
29AQI (US)
3rd February 2026
34AQI (US)
4th February 2026
34AQI (US)
5th February 2026
28AQI (US)
6th February 2026
33AQI (US)
7th February 2026
27AQI (US)
8th February 2026
30AQI (US)
9th February 2026
46AQI (US)
10th February 2026
26AQI (US)
11th February 2026
34AQI (US)
12th February 2026
36AQI (US)
13th February 2026
19AQI (US)
14th February 2026
38AQI (US)
15th February 2026
37AQI (US)
16th February 2026
21AQI (US)
17th February 2026
27AQI (US)
18th February 2026
25AQI (US)
19th February 2026
26AQI (US)
20th February 2026
28AQI (US)
21st February 2026
38AQI (US)
22nd February 2026
42AQI (US)
23rd February 2026
49AQI (US)
24th February 2026
55AQI (US)
25th February 2026
60AQI (US)
26th February 2026
70AQI (US)
27th February 2026
51AQI (US)
28th February 2026
20AQI (US)
1st March 2026
29AQI (US)
2nd March 2026
52AQI (US)
3rd March 2026
53AQI (US)
4th March 2026
61AQI (US)
5th March 2026
56AQI (US)
6th March 2026
11AQI (US)
7th March 2026
15AQI (US)
8th March 2026
24AQI (US)
9th March 2026
23AQI (US)
10th March 2026
18AQI (US)
11th March 2026
34AQI (US)
12th March 2026
35AQI (US)
13th March 2026
32AQI (US)
14th March 2026
9AQI (US)
15th March 2026
18AQI (US)
16th March 2026
25AQI (US)
17th March 2026
32AQI (US)
18th March 2026
48AQI (US)
19th March 2026
45AQI (US)
20th March 2026
48AQI (US)
21st March 2026
52AQI (US)
22nd March 2026
65AQI (US)
23rd March 2026
60AQI (US)
24th March 2026
50AQI (US)
25th March 2026
45AQI (US)
26th March 2026
16AQI (US)
27th March 2026
21AQI (US)
28th March 2026
22AQI (US)
29th March 2026
26AQI (US)
30th March 2026
26AQI (US)
31st March 2026
14AQI (US)
1st April 2026
20AQI (US)
2nd April 2026
19AQI (US)
3rd April 2026
24AQI (US)
4th April 2026
37AQI (US)
5th April 2026
45AQI (US)
6th April 2026
27AQI (US)
7th April 2026
43AQI (US)
8th April 2026
41AQI (US)
9th April 2026
44AQI (US)
10th April 2026
51AQI (US)
11th April 2026
28AQI (US)
12th April 2026
14AQI (US)
13th April 2026
16AQI (US)
14th April 2026
22AQI (US)
15th April 2026
22AQI (US)
16th April 2026
18AQI (US)
17th April 2026
18th April 2026
19AQI (US)
19th April 2026
22AQI (US)
20th April 2026
35AQI (US)
21st April 2026
58AQI (US)
22nd April 2026
23rd April 2026
23AQI (US)
24th April 2026
36AQI (US)
25th April 2026
23AQI (US)
26th April 2026
30AQI (US)
27th April 2026
34AQI (US)
28th April 2026
23AQI (US)
29th April 2026
37AQI (US)
30th April 2026
28AQI (US)
1st May 2026
28AQI (US)
2nd May 2026
37AQI (US)
3rd May 2026
16AQI (US)
4th May 2026
16AQI (US)
5th May 2026
19AQI (US)
6th May 2026
28AQI (US)
7th May 2026
36AQI (US)
8th May 2026
27AQI (US)
9th May 2026
10th May 2026
29AQI (US)
11th May 2026
22AQI (US)
12th May 2026
23AQI (US)
13th May 2026
17AQI (US)
14th May 2026
17AQI (US)
15th May 2026
23AQI (US)
16th May 2026
36AQI (US)
17th May 2026
35AQI (US)
18th May 2026
38AQI (US)
19th May 2026
39AQI (US)
20th May 2026
38AQI (US)
21st May 2026
39AQI (US)
22nd May 2026
45AQI (US)
23rd May 2026
44AQI (US)
24th May 2026
44AQI (US)
25th May 2026
37AQI (US)
26th May 2026
34AQI (US)
27th May 2026
35AQI (US)
28th May 2026
30AQI (US)
29th May 2026
37AQI (US)
30th May 2026
23AQI (US)
31st May 2026
13AQI (US)
1st June 2026
13AQI (US)
2nd June 2026
17AQI (US)
3rd June 2026
20AQI (US)
4th June 2026
15AQI (US)
5th June 2026
11AQI (US)
6th June 2026
18AQI (US)
7th June 2026
12AQI (US)
8th June 2026
18AQI (US)
9th June 2026
10AQI (US)
10th June 2026
13AQI (US)
11th June 2026
19AQI (US)
12th June 2026
16AQI (US)
13th June 2026
17AQI (US)
14th June 2026
20AQI (US)
15th June 2026
20AQI (US)
16th June 2026
39AQI (US)
17th June 2026
36AQI (US)
18th June 2026
39AQI (US)
19th June 2026
51AQI (US)
20th June 2026
38AQI (US)
21st June 2026
34AQI (US)
22nd June 2026
37AQI (US)
23rd June 2026
41AQI (US)
24th June 2026
34AQI (US)
25th June 2026
42AQI (US)
26th June 2026
21AQI (US)
27th June 2026
44AQI (US)
28th June 2026
18AQI (US)
29th June 2026
13AQI (US)
30th June 2026
17AQI (US)
1st July 2026
15AQI (US)
2nd July 2026
16AQI (US)
3rd July 2026
19AQI (US)
4th July 2026
17AQI (US)
5th July 2026
19AQI (US)
6th July 2026
25AQI (US)
7th July 2026
38AQI (US)
8th July 2026
50AQI (US)
9th July 2026
26AQI (US)
10th July 2026
23AQI (US)
11th July 2026
20AQI (US)
12th July 2026
32AQI (US)
13th July 2026
29AQI (US)
14th July 2026
25AQI (US)
15th July 2026
20AQI (US)
16th July 2026
24AQI (US)
17th July 2026
24AQI (US)
18th July 2026
28AQI (US)
19th July 2026
23AQI (US)
20th July 2026
33AQI (US)
21st July 2026
28AQI (US)
22nd July 2026
26AQI (US)
23rd July 2026
30AQI (US)
24th July 2026
45AQI (US)
25th July 2026
28AQI (US)
26th July 2026
33AQI (US)
27th July 2026
40AQI (US)
28th July 2026
49AQI (US)
29th July 2026
73AQI (US)
30th July 2026
75AQI (US)
31st July 2026
45AQI (US)
1st August 2026
37AQI (US)
2nd August 2026
26AQI (US)
3rd August 2026
27AQI (US)
4th August 2026
30AQI (US)
5th August 2026
26AQI (US)
6th August 2026
33AQI (US)
7th August 2026
31AQI (US)
8th August 2026
32AQI (US)
9th August 2026
36AQI (US)
10th August 2026
27AQI (US)
11th August 2026
39AQI (US)
12th August 2026
47AQI (US)
13th August 2026
47AQI (US)
14th August 2026
65AQI (US)
15th August 2026
38AQI (US)
16th August 2026
26AQI (US)
17th August 2026
31AQI (US)
18th August 2026
43AQI (US)
19th August 2026
51AQI (US)
20th August 2026
43AQI (US)
21st August 2026
31AQI (US)
22nd August 2026
34AQI (US)
23rd August 2026
26AQI (US)
24th August 2026
33AQI (US)
25th August 2026
32AQI (US)
26th August 2026
38AQI (US)
27th August 2026
34AQI (US)
28th August 2026
37AQI (US)
29th August 2026
35AQI (US)
30th August 2026
29AQI (US)
31st August 2026
32AQI (US)
1st September 2026
32AQI (US)
2nd September 2026
31AQI (US)
3rd September 2026
31AQI (US)
4th September 2026
41AQI (US)
5th September 2026
43AQI (US)
6th September 2026
39AQI (US)
7th September 2026
31AQI (US)
8th September 2026
29AQI (US)
9th September 2026
29AQI (US)
10th September 2026
37AQI (US)
11th September 2026
33AQI (US)
12th September 2026
34AQI (US)
13th September 2026
32AQI (US)
14th September 2026
27AQI (US)
15th September 2026
34AQI (US)
16th September 2026
28AQI (US)
17th September 2026
34AQI (US)
18th September 2026
28AQI (US)
19th September 2026
37AQI (US)
20th September 2026
37AQI (US)
21st September 2026
42AQI (US)
22nd September 2026
38AQI (US)
23rd September 2026
35AQI (US)
24th September 2026
34AQI (US)
25th September 2026
31AQI (US)
26th September 2026
29AQI (US)
27th September 2026
31AQI (US)
28th September 2026
42AQI (US)
29th September 2026
32AQI (US)
30th September 2026
39AQI (US)
1st October 2026
35AQI (US)
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)

36AQI (US)

34AQI (US)

30AQI (US)

30AQI (US)

25AQI (US)

32AQI (US)

35AQI (US)

34AQI (US)

35AQI (US)

No. of days

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

202632AQI (US)

31
24
4
24
7
26
2
30
29
1
29
2
29
2
30
1
253
18

Highest AQI (US) recorded in

February

36AQI (US)

Lowest AQI (US) recorded in

June

25AQI (US)

202533AQI (US)

24
7
22
6
31
30
31
22
8
31
18
13
29
1
29
2
28
2
27
4
322
43

Highest AQI (US) recorded in

August

47AQI (US)

Lowest AQI (US) recorded in

April

21AQI (US)

202438AQI (US)

13
18
17
10
2
31
29
1
31
28
2
31
27
3
24
3
29
2
24
6
19
12
303
57
2

Highest AQI (US) recorded in

January

54AQI (US)

Lowest AQI (US) recorded in

October

29AQI (US)

202338AQI (US)

18
12
11
17
29
2
28
2
31
30
31
30
1
30
30
1
22
7
15
16
305
58

Highest AQI (US) recorded in

December

53AQI (US)

Lowest AQI (US) recorded in

September

31AQI (US)

202240AQI (US)

16
12
1
15
7
25
5
1
30
30
1
25
5
15
6
2
1
28
27
4
28
2
25
6
265
48
1
2
1

Highest AQI (US) recorded in

July

57AQI (US)

Lowest AQI (US) recorded in

September

30AQI (US)

202129AQI (US)

29
27
1
29
2
30
31
30
27
31
28
1
31
19
11
25
6
337
21

Highest AQI (US) recorded in

November

43AQI (US)

Lowest AQI (US) recorded in

October

19AQI (US)

202027AQI (US)

12
1
18
3
18
27
2
1
28
1
2
30
1
30
31
29
1
31
254
7
3
2

Highest AQI (US) recorded in

July

41AQI (US)

Lowest AQI (US) recorded in

December

19AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2022(Avg.)
40AQI (US)
Least Polluted Year Recorded
2020(Avg.)
27AQI (US)

Leon Iv's annual 2026 AQI (US) (32) shows an average percentage change of -4.2% (improved AQI (US)) compared to previous years: 2020 (27), 2021 (29), 2022 (40), 2023 (38), 2024 (38), 2025 (33).