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HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Leon I, 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 I, Leon, Castille Leon, Spain

2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
5th Oct 2022
81AQI
Lowest AQI recorded on
26th Oct 2025
15AQI

Same Day Analysis (31st October):
On this day, AQI across the 4 years varied significantly: 2026 ranks 1st highest AQI at 20 of Good air quality on the same day.

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

Leon I, Leon, Castille Leon, Spain

AQI
Day
Night
.

8 AM30th Sep 2026

8 PM

7 AM1st Oct 2026

Day time
Avg. Highest Time
11AM30th Sep

50AQI

Avg. Lowest Time
4PM30th Sep

21AQI

Night time
Avg. Highest Time
6AM1st Oct

42AQI

Avg. Lowest Time
5AM1st Oct

21AQI

In the last 24 hours,

Leon I's AQI reached its highest point of 50 at 11 AM during the Day, while the lowest point, 21, was recorded at 5 AM during the Night between 30th Sep and 1st Oct 2026.

Day & Night AQI Trend : Sep - Oct 2026

Leon I, 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 2026232 PMAQI
2nd Sep 2026253 PMAQI
2nd Sep 2026294 PMAQI
2nd Sep 2026325 PMAQI
2nd Sep 2026406 PMAQI
2nd Sep 2026447 PMAQI
2nd Sep 2026308 PMAQI
2nd Sep 2026239 PMAQI
2nd Sep 20262310 PMAQI
2nd Sep 20262711 PMAQI
3rd Sep 20262712 AMAQI
3rd Sep 2026251 AMAQI
3rd Sep 2026232 AMAQI
3rd Sep 2026273 AMAQI
3rd Sep 2026344 AMAQI
3rd Sep 2026215 AMAQI
3rd Sep 2026236 AMAQI
3rd Sep 2026217 AMAQI

22°C15/30°C

3rd Sep 2026348 AMAQI
3rd Sep 2026349 AMAQI
3rd Sep 20263310 AMAQI
3rd Sep 20264811 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 2026369 PMAQI
3rd Sep 20264710 PMAQI
3rd Sep 20264411 PMAQI
4th Sep 20264912 AMAQI
4th Sep 2026541 AMAQI
4th Sep 2026402 AMAQI
4th Sep 2026503 AMAQI
4th Sep 2026484 AMAQI
4th Sep 2026385 AMAQI
4th Sep 2026236 AMAQI
4th Sep 2026257 AMAQI

24°C16/33°C

4th Sep 2026428 AMAQI
4th Sep 2026319 AMAQI
4th Sep 20264010 AMAQI
4th Sep 20264211 AMAQI
4th Sep 20263312 PMAQI
4th Sep 2026231 PMAQI
4th Sep 2026402 PMAQI
4th Sep 2026503 PMAQI
4th Sep 2026484 PMAQI
4th Sep 2026485 PMAQI
4th Sep 2026366 PMAQI
4th Sep 2026367 PMAQI
4th Sep 2026448 PMAQI
4th Sep 2026529 PMAQI
4th Sep 20265110 PMAQI
4th Sep 20264811 PMAQI
5th Sep 20265112 AMAQI
5th Sep 2026511 AMAQI
5th Sep 2026502 AMAQI
5th Sep 2026453 AMAQI
5th Sep 2026244 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 2026521 PMAQI
5th Sep 2026532 PMAQI
5th Sep 2026503 PMAQI
5th Sep 2026504 PMAQI
5th Sep 2026465 PMAQI
5th Sep 2026446 PMAQI
5th Sep 2026467 PMAQI
5th Sep 2026348 PMAQI
5th Sep 2026339 PMAQI
5th Sep 20265210 PMAQI
5th Sep 20265811 PMAQI
6th Sep 20265312 AMAQI
6th Sep 2026521 AMAQI
6th Sep 2026522 AMAQI
6th Sep 2026493 AMAQI
6th Sep 2026444 AMAQI
6th Sep 2026325 AMAQI
6th Sep 2026276 AMAQI
6th Sep 2026277 AMAQI

26°C20/32°C

6th Sep 2026318 AMAQI
6th Sep 2026339 AMAQI
6th Sep 20263810 AMAQI
6th Sep 20265011 AMAQI
6th Sep 20265012 PMAQI
6th Sep 2026401 PMAQI
6th Sep 2026322 PMAQI
6th Sep 2026253 PMAQI
6th Sep 2026254 PMAQI
6th Sep 2026235 PMAQI
6th Sep 2026336 PMAQI
6th Sep 2026367 PMAQI
6th Sep 2026408 PMAQI
6th Sep 2026449 PMAQI
6th Sep 20264410 PMAQI
6th Sep 20264811 PMAQI
7th Sep 20264612 AMAQI
7th Sep 2026491 AMAQI
7th Sep 2026362 AMAQI
7th Sep 2026233 AMAQI
7th Sep 2026234 AMAQI
7th Sep 2026235 AMAQI
7th Sep 2026256 AMAQI
7th Sep 2026317 AMAQI

24°C18/33°C

7th Sep 2026298 AMAQI
7th Sep 2026239 AMAQI
7th Sep 20262110 AMAQI
7th Sep 20262111 AMAQI
7th Sep 20262512 PMAQI
7th Sep 2026231 PMAQI
7th Sep 2026382 PMAQI
7th Sep 2026533 PMAQI
7th Sep 2026404 PMAQI
7th Sep 2026385 PMAQI
7th Sep 2026256 PMAQI
7th Sep 2026257 PMAQI
7th Sep 2026278 PMAQI
7th Sep 2026329 PMAQI
7th Sep 20262910 PMAQI
7th Sep 20263111 PMAQI
8th Sep 20263412 AMAQI
8th Sep 2026361 AMAQI
8th Sep 2026272 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 20262710 AMAQI
8th Sep 20263211 AMAQI
8th Sep 20263812 PMAQI
8th Sep 2026421 PMAQI
8th Sep 2026382 PMAQI
8th Sep 2026293 PMAQI
8th Sep 2026274 PMAQI
8th Sep 2026315 PMAQI
8th Sep 2026346 PMAQI
8th Sep 2026317 PMAQI
8th Sep 2026238 PMAQI
8th Sep 2026279 PMAQI
8th Sep 20262510 PMAQI
8th Sep 20262111 PMAQI
9th Sep 20261712 AMAQI
9th Sep 2026141 AMAQI
9th Sep 2026142 AMAQI
9th Sep 2026193 AMAQI
9th Sep 2026294 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 20263312 PMAQI
9th Sep 2026361 PMAQI
9th Sep 2026422 PMAQI
9th Sep 2026273 PMAQI
9th Sep 2026444 PMAQI
9th Sep 2026525 PMAQI
9th Sep 2026566 PMAQI
9th Sep 2026387 PMAQI
9th Sep 2026348 PMAQI
9th Sep 2026409 PMAQI
9th Sep 20262310 PMAQI
9th Sep 20263411 PMAQI
10th Sep 20264012 AMAQI
10th Sep 2026421 AMAQI
10th Sep 2026212 AMAQI
10th Sep 2026423 AMAQI
10th Sep 2026334 AMAQI
10th Sep 2026315 AMAQI
10th Sep 2026296 AMAQI
10th Sep 2026367 AMAQI

16°C10/23°C

10th Sep 2026408 AMAQI
10th Sep 2026369 AMAQI
10th Sep 20263810 AMAQI
10th Sep 20263111 AMAQI
10th Sep 20263412 PMAQI
10th Sep 2026361 PMAQI
10th Sep 2026252 PMAQI
10th Sep 2026383 PMAQI
10th Sep 2026514 PMAQI
10th Sep 2026385 PMAQI
10th Sep 2026326 PMAQI
10th Sep 2026327 PMAQI
10th Sep 2026308 PMAQI
10th Sep 2026409 PMAQI
10th Sep 20263210 PMAQI
10th Sep 20263211 PMAQI
11th Sep 20262312 AMAQI
11th Sep 2026251 AMAQI
11th Sep 2026272 AMAQI
11th Sep 2026343 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 20262912 PMAQI
11th Sep 2026341 PMAQI
11th Sep 2026362 PMAQI
11th Sep 2026233 PMAQI
11th Sep 2026214 PMAQI
11th Sep 2026385 PMAQI
11th Sep 2026316 PMAQI
11th Sep 2026347 PMAQI
11th Sep 2026408 PMAQI
11th Sep 2026369 PMAQI
11th Sep 20263110 PMAQI
11th Sep 20263611 PMAQI
12th Sep 20263312 AMAQI
12th Sep 2026381 AMAQI
12th Sep 2026362 AMAQI
12th Sep 2026273 AMAQI
12th Sep 2026384 AMAQI
12th Sep 2026445 AMAQI
12th Sep 2026406 AMAQI
12th Sep 2026307 AMAQI

19°C13/27°C

12th Sep 2026318 AMAQI
12th Sep 2026299 AMAQI
12th Sep 20263310 AMAQI
12th Sep 20263611 AMAQI
12th Sep 20264212 PMAQI
12th Sep 2026341 PMAQI
12th Sep 2026382 PMAQI
12th Sep 2026343 PMAQI
12th Sep 2026254 PMAQI
12th Sep 2026295 PMAQI
12th Sep 2026296 PMAQI
12th Sep 2026237 PMAQI
12th Sep 2026218 PMAQI
12th Sep 2026349 PMAQI
12th Sep 20263011 PMAQI
13th Sep 20262712 AMAQI
13th Sep 2026311 AMAQI
13th Sep 2026312 AMAQI
13th Sep 2026423 AMAQI
13th Sep 2026404 AMAQI
13th Sep 2026805 AMAQI
13th Sep 2026506 AMAQI
13th Sep 2026367 AMAQI

20°C13/28°C

13th Sep 2026428 AMAQI
13th Sep 2026319 AMAQI
13th Sep 20264210 AMAQI
13th Sep 20262111 AMAQI
13th Sep 20263612 PMAQI
13th Sep 2026271 PMAQI
13th Sep 202682 PMAQI
13th Sep 202683 PMAQI
13th Sep 2026164 PMAQI
13th Sep 2026255 PMAQI
13th Sep 2026246 PMAQI
13th Sep 2026267 PMAQI
13th Sep 2026268 PMAQI
13th Sep 2026279 PMAQI
13th Sep 20262310 PMAQI
13th Sep 20262111 PMAQI
14th Sep 20263612 AMAQI
14th Sep 2026401 AMAQI
14th Sep 2026322 AMAQI
14th Sep 2026233 AMAQI
14th Sep 2026404 AMAQI
14th Sep 2026405 AMAQI
14th Sep 2026406 AMAQI
14th Sep 2026407 AMAQI

21°C14/30°C

14th Sep 2026388 AMAQI
14th Sep 2026409 AMAQI
14th Sep 2026710 AMAQI
14th Sep 2026811 AMAQI
14th Sep 20262512 PMAQI
14th Sep 2026341 PMAQI
14th Sep 2026232 PMAQI
14th Sep 2026233 PMAQI
14th Sep 2026344 PMAQI
14th Sep 2026335 PMAQI
14th Sep 2026296 PMAQI
14th Sep 202687 PMAQI
14th Sep 2026108 PMAQI
14th Sep 2026209 PMAQI
14th Sep 20262310 PMAQI
14th Sep 20263011 PMAQI
15th Sep 20264012 AMAQI
15th Sep 2026361 AMAQI
15th Sep 2026252 AMAQI
15th Sep 2026273 AMAQI
15th Sep 2026404 AMAQI
15th Sep 2026315 AMAQI
15th Sep 2026386 AMAQI
15th Sep 2026387 AMAQI

24°C16/32°C

15th Sep 2026298 AMAQI
15th Sep 2026329 AMAQI
15th Sep 20263610 AMAQI
15th Sep 20262911 AMAQI
15th Sep 20262112 PMAQI
15th Sep 2026321 PMAQI
15th Sep 2026422 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 2026329 PMAQI
15th Sep 20263810 PMAQI
15th Sep 20262511 PMAQI
16th Sep 20261412 AMAQI
16th Sep 2026121 AMAQI
16th Sep 2026142 AMAQI
16th Sep 2026143 AMAQI
16th Sep 2026194 AMAQI
16th Sep 2026295 AMAQI
16th Sep 2026296 AMAQI
16th Sep 2026347 AMAQI

23°C16/32°C

16th Sep 2026348 AMAQI
16th Sep 2026329 AMAQI
16th Sep 20262310 AMAQI
16th Sep 20262511 AMAQI
16th Sep 20262912 PMAQI
16th Sep 2026291 PMAQI
16th Sep 2026262 PMAQI
16th Sep 2026273 PMAQI
16th Sep 2026364 PMAQI
16th Sep 2026405 PMAQI
16th Sep 2026296 PMAQI
16th Sep 2026257 PMAQI
16th Sep 2026368 PMAQI
16th Sep 2026429 PMAQI
16th Sep 20265010 PMAQI
16th Sep 20262711 PMAQI
17th Sep 20262712 AMAQI
17th Sep 2026231 AMAQI
17th Sep 2026232 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 2026338 AMAQI
17th Sep 2026339 AMAQI
17th Sep 20263610 AMAQI
17th Sep 2026611 AMAQI
17th Sep 2026812 PMAQI
17th Sep 2026311 PMAQI
17th Sep 2026382 PMAQI
17th Sep 2026443 PMAQI
17th Sep 2026444 PMAQI
17th Sep 2026385 PMAQI
17th Sep 2026276 PMAQI
17th Sep 2026367 PMAQI
17th Sep 2026258 PMAQI
17th Sep 2026299 PMAQI
17th Sep 20263410 PMAQI
17th Sep 20263411 PMAQI
18th Sep 20263212 AMAQI
18th Sep 2026301 AMAQI
18th Sep 2026212 AMAQI
18th Sep 2026213 AMAQI
18th Sep 2026334 AMAQI
18th Sep 2026255 AMAQI
18th Sep 2026236 AMAQI
18th Sep 2026257 AMAQI

14°C7/23°C

18th Sep 2026428 AMAQI
18th Sep 2026329 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 2026284 PMAQI
18th Sep 2026255 PMAQI
18th Sep 2026286 PMAQI
18th Sep 2026257 PMAQI
18th Sep 2026238 PMAQI
18th Sep 2026259 PMAQI
18th Sep 20262510 PMAQI
18th Sep 20262711 PMAQI
19th Sep 20263212 AMAQI
19th Sep 2026301 AMAQI
19th Sep 2026422 AMAQI
19th Sep 2026443 AMAQI
19th Sep 2026274 AMAQI
19th Sep 2026255 AMAQI
19th Sep 2026236 AMAQI
19th Sep 2026277 AMAQI

15°C9/22°C

19th Sep 2026298 AMAQI
19th Sep 2026319 AMAQI
19th Sep 20263110 AMAQI
19th Sep 20263211 AMAQI
19th Sep 20262512 PMAQI
19th Sep 2026251 PMAQI
19th Sep 2026272 PMAQI
19th Sep 2026253 PMAQI
19th Sep 2026234 PMAQI
19th Sep 2026295 PMAQI
19th Sep 2026346 PMAQI
19th Sep 2026367 PMAQI
19th Sep 2026298 PMAQI
19th Sep 2026429 PMAQI
19th Sep 20262910 PMAQI
19th Sep 20262711 PMAQI
20th Sep 20262912 AMAQI
20th Sep 2026211 AMAQI
20th Sep 2026292 AMAQI
20th Sep 2026483 AMAQI
20th Sep 2026384 AMAQI
20th Sep 2026405 AMAQI
20th Sep 2026366 AMAQI
20th Sep 2026347 AMAQI

18°C11/26°C

20th Sep 2026348 AMAQI
20th Sep 2026389 AMAQI
20th Sep 20263110 AMAQI
20th Sep 20262711 AMAQI
20th Sep 20263812 PMAQI
20th Sep 2026401 PMAQI
20th Sep 2026342 PMAQI
20th Sep 2026293 PMAQI
20th Sep 2026294 PMAQI
20th Sep 2026275 PMAQI
20th Sep 2026236 PMAQI
20th Sep 2026257 PMAQI
20th Sep 2026238 PMAQI
20th Sep 2026259 PMAQI
20th Sep 20262510 PMAQI
20th Sep 20263311 PMAQI
21st Sep 20265512 AMAQI
21st Sep 2026531 AMAQI
21st Sep 2026562 AMAQI
21st Sep 2026383 AMAQI
21st Sep 2026364 AMAQI
21st Sep 2026405 AMAQI
21st Sep 2026556 AMAQI
21st Sep 2026467 AMAQI

20°C14/28°C

21st Sep 2026558 AMAQI
21st Sep 2026569 AMAQI
21st Sep 20264210 AMAQI
21st Sep 20262311 AMAQI
21st Sep 20263812 PMAQI
21st Sep 2026481 PMAQI
21st Sep 2026522 PMAQI
21st Sep 2026503 PMAQI
21st Sep 2026404 PMAQI
21st Sep 2026295 PMAQI
21st Sep 2026276 PMAQI
21st Sep 2026347 PMAQI
21st Sep 2026428 PMAQI
21st Sep 2026299 PMAQI
21st Sep 20262910 PMAQI
21st Sep 20262711 PMAQI
22nd Sep 20263412 AMAQI
22nd Sep 2026501 AMAQI
22nd Sep 2026462 AMAQI
22nd Sep 2026463 AMAQI
22nd Sep 2026424 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 2026364 PMAQI
22nd Sep 2026405 PMAQI
22nd Sep 2026316 PMAQI
22nd Sep 2026277 PMAQI
22nd Sep 2026348 PMAQI
22nd Sep 2026409 PMAQI
22nd Sep 20264210 PMAQI
22nd Sep 20264611 PMAQI
23rd Sep 20264212 AMAQI
23rd Sep 2026311 AMAQI
23rd Sep 2026362 AMAQI
23rd Sep 2026363 AMAQI
23rd Sep 2026254 AMAQI
23rd Sep 2026315 AMAQI
23rd Sep 2026296 AMAQI
23rd Sep 2026277 AMAQI

21°C14/31°C

23rd Sep 2026328 AMAQI
23rd Sep 2026319 AMAQI
23rd Sep 20263410 AMAQI
23rd Sep 20262911 AMAQI
23rd Sep 20263412 PMAQI
23rd Sep 2026311 PMAQI
23rd Sep 2026382 PMAQI
23rd Sep 2026383 PMAQI
23rd Sep 2026424 PMAQI
23rd Sep 2026335 PMAQI
23rd Sep 2026336 PMAQI
23rd Sep 2026257 PMAQI
23rd Sep 2026408 PMAQI
23rd Sep 2026339 PMAQI
23rd Sep 20262710 PMAQI
23rd Sep 20264011 PMAQI
24th Sep 20263612 AMAQI
24th Sep 2026361 AMAQI
24th Sep 2026252 AMAQI
24th Sep 2026463 AMAQI
24th Sep 2026254 AMAQI
24th Sep 2026255 AMAQI
24th Sep 2026386 AMAQI
24th Sep 2026257 AMAQI

22°C15/30°C

24th Sep 2026328 AMAQI
24th Sep 2026299 AMAQI
24th Sep 20262910 AMAQI
24th Sep 20262511 AMAQI
24th Sep 20262512 PMAQI
24th Sep 2026341 PMAQI
24th Sep 2026482 PMAQI
24th Sep 2026373 PMAQI
24th Sep 2026364 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 20264711 PMAQI
25th Sep 20264412 AMAQI
25th Sep 2026261 AMAQI
25th Sep 2026242 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 20262112 PMAQI
25th Sep 2026351 PMAQI
25th Sep 2026352 PMAQI
25th Sep 2026363 PMAQI
25th Sep 2026364 PMAQI
25th Sep 2026465 PMAQI
25th Sep 2026426 PMAQI
25th Sep 2026237 PMAQI
25th Sep 2026238 PMAQI
25th Sep 2026219 PMAQI
25th Sep 20262110 PMAQI
25th Sep 20262111 PMAQI
26th Sep 20262112 AMAQI
26th Sep 2026211 AMAQI
26th Sep 2026232 AMAQI
26th Sep 2026283 AMAQI
26th Sep 2026254 AMAQI
26th Sep 2026305 AMAQI
26th Sep 2026296 AMAQI
26th Sep 2026257 AMAQI

21°C15/30°C

26th Sep 2026238 AMAQI
26th Sep 2026259 AMAQI
26th Sep 20262510 AMAQI
26th Sep 20262911 AMAQI
26th Sep 20262912 PMAQI
26th Sep 2026321 PMAQI
26th Sep 2026402 PMAQI
26th Sep 2026363 PMAQI
26th Sep 2026344 PMAQI
26th Sep 2026275 PMAQI
26th Sep 2026276 PMAQI
26th Sep 2026277 PMAQI
26th Sep 2026258 PMAQI
26th Sep 2026259 PMAQI
26th Sep 20262510 PMAQI
26th Sep 20262111 PMAQI
27th Sep 20262712 AMAQI
27th Sep 2026311 AMAQI
27th Sep 2026272 AMAQI
27th Sep 2026253 AMAQI
27th Sep 2026234 AMAQI
27th Sep 2026255 AMAQI
27th Sep 2026256 AMAQI
27th Sep 2026257 AMAQI

19°C13/28°C

27th Sep 2026328 AMAQI
27th Sep 2026369 AMAQI
27th Sep 20264010 AMAQI
27th Sep 20263811 AMAQI
27th Sep 20263812 PMAQI
27th Sep 2026401 PMAQI
27th Sep 2026382 PMAQI
27th Sep 2026343 PMAQI
27th Sep 2026294 PMAQI
27th Sep 2026255 PMAQI
27th Sep 2026256 PMAQI
27th Sep 2026257 PMAQI
27th Sep 2026258 PMAQI
27th Sep 2026259 PMAQI
27th Sep 20262710 PMAQI
27th Sep 20263211 PMAQI
28th Sep 20264012 AMAQI
28th Sep 2026421 AMAQI
28th Sep 2026382 AMAQI
28th Sep 2026383 AMAQI
28th Sep 2026364 AMAQI
28th Sep 2026295 AMAQI
28th Sep 2026296 AMAQI
28th Sep 2026297 AMAQI

21°C15/28°C

28th Sep 2026278 AMAQI
28th Sep 2026299 AMAQI
28th Sep 20263110 AMAQI
28th Sep 20263311 AMAQI
28th Sep 20264012 PMAQI
28th Sep 2026381 PMAQI
28th Sep 2026422 PMAQI
28th Sep 2026633 PMAQI
28th Sep 2026734 PMAQI
28th Sep 2026555 PMAQI
28th Sep 2026446 PMAQI
28th Sep 2026427 PMAQI
28th Sep 2026468 PMAQI
28th Sep 2026469 PMAQI
28th Sep 20264410 PMAQI
28th Sep 20264011 PMAQI
29th Sep 20262112 AMAQI
29th Sep 2026191 AMAQI
29th Sep 2026232 AMAQI
29th Sep 2026213 AMAQI
29th Sep 2026174 AMAQI
29th Sep 2026145 AMAQI
29th Sep 2026146 AMAQI
29th Sep 2026147 AMAQI

19°C15/25°C

29th Sep 2026178 AMAQI
29th Sep 2026239 AMAQI
29th Sep 20262710 AMAQI
29th Sep 20262911 AMAQI
29th Sep 20263112 PMAQI
29th Sep 2026291 PMAQI
29th Sep 2026402 PMAQI
29th Sep 2026403 PMAQI
29th Sep 2026254 PMAQI
29th Sep 2026325 PMAQI
29th Sep 2026406 PMAQI
29th Sep 2026317 PMAQI
29th Sep 2026368 PMAQI
29th Sep 2026389 PMAQI
29th Sep 20263610 PMAQI
29th Sep 20263811 PMAQI
30th Sep 20264012 AMAQI
30th Sep 2026501 AMAQI
30th Sep 2026512 AMAQI
30th Sep 2026423 AMAQI
30th Sep 2026444 AMAQI
30th Sep 2026465 AMAQI
30th Sep 2026336 AMAQI
30th Sep 2026367 AMAQI

16°C13/20°C

30th Sep 2026388 AMAQI
30th Sep 2026389 AMAQI
30th Sep 20263810 AMAQI
30th Sep 20265011 AMAQI
30th Sep 20264912 PMAQI
30th Sep 2026481 PMAQI
30th Sep 2026482 PMAQI
30th Sep 2026503 PMAQI
30th Sep 2026214 PMAQI
30th Sep 2026295 PMAQI
30th Sep 2026336 PMAQI
30th Sep 2026337 PMAQI
30th Sep 2026258 PMAQI
30th Sep 2026259 PMAQI
30th Sep 20262310 PMAQI
30th Sep 20262511 PMAQI
1st Oct 20262312 AMAQI
1st Oct 2026211 AMAQI
1st Oct 2026212 AMAQI
1st Oct 2026213 AMAQI
1st Oct 2026214 AMAQI
1st Oct 2026215 AMAQI
1st Oct 2026426 AMAQI
1st Oct 2026387 AMAQI

17°C14/21°C

1st Oct 2026338 AMAQI
8 AM
1st Oct 2026339 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 2026423 PMAQI
1st Oct 2026364 PMAQI
1st Oct 2026255 PMAQI
1st Oct 2026296 PMAQI
1st Oct 2026297 PMAQI
1st Oct 2026238 PMAQI
8 PM
1st Oct 2026259 PMAQI
1st Oct 20262710 PMAQI
1st Oct 20262511 PMAQI
2 AM
7 AM

14°C9/21°C

Day time
Avg. Highest Time
1 PM - 6 PM

35AQI

6 hours / Day
180 hours / Month
Avg. Lowest Time
11 AM

30AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 PM to 6 PM (Avg. 35), while the lowest AQI was between 11 AM to 11 AM (Avg. 30).
Night time
Avg. Highest Time
12 AM - 1 AM

35AQI

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

31AQI

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. 35), while the lowest AQI was between 7 AM to 7 AM (Avg. 31).

2026 Days Vs Air Quality

Leon I, Leon, Castille Leon, Spain

2026

94%

254

6%

16

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

Good
254 Days
Moderate
16 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 94%

Health Risk Level:

Very Low

In 2026, 94% 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 I, 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
45AQI (US)
2nd January 2026
43AQI (US)
3rd January 2026
56AQI (US)
4th January 2026
21AQI (US)
5th January 2026
20AQI (US)
6th January 2026
24AQI (US)
7th January 2026
38AQI (US)
8th January 2026
38AQI (US)
9th January 2026
12AQI (US)
10th January 2026
13AQI (US)
11th January 2026
40AQI (US)
12th January 2026
31AQI (US)
13th January 2026
27AQI (US)
14th January 2026
17AQI (US)
15th January 2026
24AQI (US)
16th January 2026
30AQI (US)
17th January 2026
28AQI (US)
18th January 2026
15AQI (US)
19th January 2026
23AQI (US)
20th January 2026
42AQI (US)
21st January 2026
24AQI (US)
22nd January 2026
22AQI (US)
23rd January 2026
37AQI (US)
24th January 2026
34AQI (US)
25th January 2026
32AQI (US)
26th January 2026
42AQI (US)
27th January 2026
25AQI (US)
28th January 2026
30AQI (US)
29th January 2026
35AQI (US)
30th January 2026
36AQI (US)
31st January 2026
34AQI (US)
1st February 2026
35AQI (US)
2nd February 2026
29AQI (US)
3rd February 2026
33AQI (US)
4th February 2026
34AQI (US)
5th February 2026
28AQI (US)
6th February 2026
34AQI (US)
7th February 2026
27AQI (US)
8th February 2026
30AQI (US)
9th February 2026
45AQI (US)
10th February 2026
26AQI (US)
11th February 2026
34AQI (US)
12th February 2026
35AQI (US)
13th February 2026
18AQI (US)
14th February 2026
37AQI (US)
15th February 2026
38AQI (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
36AQI (US)
22nd February 2026
41AQI (US)
23rd February 2026
48AQI (US)
24th February 2026
55AQI (US)
25th February 2026
60AQI (US)
26th February 2026
68AQI (US)
27th February 2026
51AQI (US)
28th February 2026
19AQI (US)
1st March 2026
28AQI (US)
2nd March 2026
51AQI (US)
3rd March 2026
52AQI (US)
4th March 2026
60AQI (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
33AQI (US)
12th March 2026
35AQI (US)
13th March 2026
31AQI (US)
14th March 2026
9AQI (US)
15th March 2026
18AQI (US)
16th March 2026
24AQI (US)
17th March 2026
31AQI (US)
18th March 2026
47AQI (US)
19th March 2026
44AQI (US)
20th March 2026
48AQI (US)
21st March 2026
52AQI (US)
22nd March 2026
64AQI (US)
23rd March 2026
59AQI (US)
24th March 2026
49AQI (US)
25th March 2026
45AQI (US)
26th March 2026
15AQI (US)
27th March 2026
21AQI (US)
28th March 2026
21AQI (US)
29th March 2026
26AQI (US)
30th March 2026
26AQI (US)
31st March 2026
15AQI (US)
1st April 2026
20AQI (US)
2nd April 2026
18AQI (US)
3rd April 2026
24AQI (US)
4th April 2026
37AQI (US)
5th April 2026
44AQI (US)
6th April 2026
26AQI (US)
7th April 2026
42AQI (US)
8th April 2026
40AQI (US)
9th April 2026
44AQI (US)
10th April 2026
50AQI (US)
11th April 2026
27AQI (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
21AQI (US)
20th April 2026
35AQI (US)
21st April 2026
56AQI (US)
22nd April 2026
23rd April 2026
23AQI (US)
24th April 2026
36AQI (US)
25th April 2026
22AQI (US)
26th April 2026
31AQI (US)
27th April 2026
34AQI (US)
28th April 2026
23AQI (US)
29th April 2026
38AQI (US)
30th April 2026
28AQI (US)
1st May 2026
28AQI (US)
2nd May 2026
36AQI (US)
3rd May 2026
16AQI (US)
4th May 2026
15AQI (US)
5th May 2026
19AQI (US)
6th May 2026
28AQI (US)
7th May 2026
35AQI (US)
8th May 2026
26AQI (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
16AQI (US)
15th May 2026
23AQI (US)
16th May 2026
36AQI (US)
17th May 2026
35AQI (US)
18th May 2026
38AQI (US)
19th May 2026
38AQI (US)
20th May 2026
38AQI (US)
21st May 2026
39AQI (US)
22nd May 2026
44AQI (US)
23rd May 2026
43AQI (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
12AQI (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
11AQI (US)
10th June 2026
13AQI (US)
11th June 2026
19AQI (US)
12th June 2026
15AQI (US)
13th June 2026
17AQI (US)
14th June 2026
20AQI (US)
15th June 2026
20AQI (US)
16th June 2026
38AQI (US)
17th June 2026
36AQI (US)
18th June 2026
39AQI (US)
19th June 2026
50AQI (US)
20th June 2026
37AQI (US)
21st June 2026
34AQI (US)
22nd June 2026
38AQI (US)
23rd June 2026
40AQI (US)
24th June 2026
34AQI (US)
25th June 2026
42AQI (US)
26th June 2026
21AQI (US)
27th June 2026
43AQI (US)
28th June 2026
18AQI (US)
29th June 2026
12AQI (US)
30th June 2026
16AQI (US)
1st July 2026
14AQI (US)
2nd July 2026
14AQI (US)
3rd July 2026
17AQI (US)
4th July 2026
16AQI (US)
5th July 2026
18AQI (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
25AQI (US)
18th July 2026
27AQI (US)
19th July 2026
24AQI (US)
20th July 2026
32AQI (US)
21st July 2026
25AQI (US)
22nd July 2026
26AQI (US)
23rd July 2026
29AQI (US)
24th July 2026
44AQI (US)
25th July 2026
26AQI (US)
26th July 2026
33AQI (US)
27th July 2026
37AQI (US)
28th July 2026
49AQI (US)
29th July 2026
74AQI (US)
30th July 2026
76AQI (US)
31st July 2026
44AQI (US)
1st August 2026
36AQI (US)
2nd August 2026
27AQI (US)
3rd August 2026
27AQI (US)
4th August 2026
29AQI (US)
5th August 2026
26AQI (US)
6th August 2026
33AQI (US)
7th August 2026
31AQI (US)
8th August 2026
31AQI (US)
9th August 2026
37AQI (US)
10th August 2026
28AQI (US)
11th August 2026
39AQI (US)
12th August 2026
47AQI (US)
13th August 2026
48AQI (US)
14th August 2026
66AQI (US)
15th August 2026
36AQI (US)
16th August 2026
26AQI (US)
17th August 2026
31AQI (US)
18th August 2026
42AQI (US)
19th August 2026
50AQI (US)
20th August 2026
41AQI (US)
21st August 2026
29AQI (US)
22nd August 2026
34AQI (US)
23rd August 2026
26AQI (US)
24th August 2026
33AQI (US)
25th August 2026
32AQI (US)
26th August 2026
35AQI (US)
27th August 2026
32AQI (US)
28th August 2026
28AQI (US)
29th August 2026
32AQI (US)
30th August 2026
25AQI (US)
31st August 2026
31AQI (US)
1st September 2026
32AQI (US)
2nd September 2026
31AQI (US)
3rd September 2026
29AQI (US)
4th September 2026
41AQI (US)
5th September 2026
43AQI (US)
6th September 2026
39AQI (US)
7th September 2026
31AQI (US)
8th September 2026
30AQI (US)
9th September 2026
31AQI (US)
10th September 2026
35AQI (US)
11th September 2026
32AQI (US)
12th September 2026
33AQI (US)
13th September 2026
31AQI (US)
14th September 2026
28AQI (US)
15th September 2026
34AQI (US)
16th September 2026
28AQI (US)
17th September 2026
32AQI (US)
18th September 2026
27AQI (US)
19th September 2026
30AQI (US)
20th September 2026
32AQI (US)
21st September 2026
42AQI (US)
22nd September 2026
38AQI (US)
23rd September 2026
33AQI (US)
24th September 2026
33AQI (US)
25th September 2026
29AQI (US)
26th September 2026
27AQI (US)
27th September 2026
30AQI (US)
28th September 2026
41AQI (US)
29th September 2026
27AQI (US)
30th September 2026
38AQI (US)
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)

35AQI (US)

34AQI (US)

30AQI (US)

30AQI (US)

25AQI (US)

31AQI (US)

34AQI (US)

33AQI (US)

No. of days

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

202631AQI (US)

30
1
24
4
24
7
27
1
30
30
29
2
30
1
30
254
16

Highest AQI (US) recorded in

February

35AQI (US)

Lowest AQI (US) recorded in

June

25AQI (US)

202533AQI (US)

24
7
22
6
31
30
31
20
10
31
18
13
29
1
29
2
27
3
26
5
318
47

Highest AQI (US) recorded in

August

46AQI (US)

Lowest AQI (US) recorded in

April

21AQI (US)

202439AQI (US)

12
19
15
13
1
26
4
1
29
1
31
28
2
31
27
3
25
3
29
2
24
6
20
11
297
64
2

Highest AQI (US) recorded in

January

56AQI (US)

Lowest AQI (US) recorded in

October

29AQI (US)

202341AQI (US)

19
12
11
17
28
3
28
2
31
28
2
31
30
1
24
2
4
30
1
22
7
12
19
294
64
2
4

Highest AQI (US) recorded in

September

71AQI (US)

Lowest AQI (US) recorded in

July

30AQI (US)

202239AQI (US)

16
12
1
15
6
25
4
1
1
30
30
1
25
5
14
7
2
1
28
27
4
29
1
26
5
266
45
2
2
1

Highest AQI (US) recorded in

July

55AQI (US)

Lowest AQI (US) recorded in

September

30AQI (US)

202130AQI (US)

27
2
25
3
30
1
30
31
30
27
31
29
31
19
11
25
6
335
23

Highest AQI (US) recorded in

November

43AQI (US)

Lowest AQI (US) recorded in

October

24AQI (US)

202026AQI (US)

12
1
21
18
30
29
31
30
31
29
1
31
262
2

Highest AQI (US) recorded in

March

34AQI (US)

Lowest AQI (US) recorded in

December

21AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2023(Avg.)
41AQI (US)
Least Polluted Year Recorded
2020(Avg.)
26AQI (US)

Leon I's annual 2026 AQI (US) (31) shows an average percentage change of -8.1% (improved AQI (US)) compared to previous years: 2020 (26), 2021 (30), 2022 (39), 2023 (41), 2024 (39), 2025 (33).