Zalla, Portugalete, Basque Country, 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+
August Air Quality Analysis
Zalla, Portugalete, Basque Country, Spain
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
24th Aug 2023
64AQILowest AQI recorded on
28th Aug 2023
18AQISame Day Analysis (11th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 50 of Good air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 11th Aug - 12th Aug 2025
Zalla, Portugalete, Basque Country, Spain
AQI
Day
Night
.
6 AM11th Aug 2025
9 PM
5 AM12th Aug 2025
Day time
Avg. Highest Time
12PM11th Aug
60AQI
Avg. Lowest Time
9PM11th Aug
52AQI
Night time
Avg. Highest Time
5AM12th Aug
62AQI
Avg. Lowest Time
2AM12th Aug
52AQI
In the last 24 hours,
Zalla's AQI reached its highest point of 62 at 5 AM during the Night, while the lowest point, 52, was recorded at 2 AM during the Night between 11th Aug and 12th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Zalla, Portugalete, Basque Country, Spain
JulAug
13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th
Day
Night
13th Jul 2025516 AMAQI
13th Jul 2025497 AMAQI
13th Jul 2025488 AMAQI
13th Jul 2025499 AMAQI
13th Jul 20254610 AMAQI
13th Jul 20254611 AMAQI
13th Jul 20254812 PMAQI
13th Jul 2025461 PMAQI
13th Jul 2025482 PMAQI
13th Jul 2025473 PMAQI
13th Jul 2025444 PMAQI
13th Jul 2025415 PMAQI
13th Jul 2025386 PMAQI
13th Jul 2025427 PMAQI
13th Jul 2025448 PMAQI
13th Jul 2025489 PMAQI
13th Jul 20254710 PMAQI
13th Jul 20254611 PMAQI
14th Jul 20254212 AMAQI
14th Jul 2025431 AMAQI
14th Jul 2025402 AMAQI
14th Jul 2025363 AMAQI
14th Jul 2025374 AMAQI
14th Jul 2025405 AMAQI
19°C15/25°C
14th Jul 2025416 AMAQI
14th Jul 2025437 AMAQI
14th Jul 2025448 AMAQI
14th Jul 2025469 AMAQI
14th Jul 20254610 AMAQI
14th Jul 20254611 AMAQI
14th Jul 20254512 PMAQI
14th Jul 2025441 PMAQI
14th Jul 2025432 PMAQI
14th Jul 2025403 PMAQI
14th Jul 2025384 PMAQI
14th Jul 2025385 PMAQI
14th Jul 2025406 PMAQI
14th Jul 2025387 PMAQI
14th Jul 2025408 PMAQI
14th Jul 2025419 PMAQI
14th Jul 20254110 PMAQI
14th Jul 20254211 PMAQI
15th Jul 20254112 AMAQI
15th Jul 2025411 AMAQI
15th Jul 2025372 AMAQI
15th Jul 2025283 AMAQI
15th Jul 2025324 AMAQI
15th Jul 2025325 AMAQI
19°C17/22°C
15th Jul 2025376 AMAQI
15th Jul 2025377 AMAQI
15th Jul 2025368 AMAQI
15th Jul 2025359 AMAQI
15th Jul 20253510 AMAQI
15th Jul 20253411 AMAQI
15th Jul 20253312 PMAQI
15th Jul 2025301 PMAQI
15th Jul 2025362 PMAQI
15th Jul 2025363 PMAQI
15th Jul 2025364 PMAQI
15th Jul 2025385 PMAQI
15th Jul 2025376 PMAQI
15th Jul 2025397 PMAQI
15th Jul 2025388 PMAQI
15th Jul 2025389 PMAQI
15th Jul 20253710 PMAQI
15th Jul 20253711 PMAQI
16th Jul 20253712 AMAQI
16th Jul 2025371 AMAQI
16th Jul 2025402 AMAQI
16th Jul 2025483 AMAQI
16th Jul 2025504 AMAQI
16th Jul 2025495 AMAQI
19°C15/24°C
16th Jul 2025466 AMAQI
16th Jul 2025467 AMAQI
16th Jul 2025448 AMAQI
16th Jul 2025469 AMAQI
16th Jul 20254610 AMAQI
16th Jul 20254811 AMAQI
16th Jul 20254512 PMAQI
16th Jul 2025441 PMAQI
16th Jul 2025432 PMAQI
16th Jul 2025433 PMAQI
16th Jul 2025434 PMAQI
16th Jul 2025415 PMAQI
16th Jul 2025436 PMAQI
16th Jul 2025447 PMAQI
16th Jul 2025448 PMAQI
16th Jul 2025469 PMAQI
16th Jul 20254510 PMAQI
16th Jul 20254511 PMAQI
17th Jul 20254412 AMAQI
17th Jul 2025441 AMAQI
17th Jul 2025462 AMAQI
17th Jul 2025463 AMAQI
17th Jul 2025494 AMAQI
17th Jul 2025525 AMAQI
21°C14/29°C
17th Jul 2025526 AMAQI
17th Jul 2025517 AMAQI
17th Jul 2025518 AMAQI
17th Jul 2025529 AMAQI
17th Jul 20255010 AMAQI
17th Jul 20255011 AMAQI
17th Jul 20255112 PMAQI
17th Jul 2025511 PMAQI
17th Jul 2025482 PMAQI
17th Jul 2025463 PMAQI
17th Jul 2025454 PMAQI
17th Jul 2025455 PMAQI
17th Jul 2025486 PMAQI
17th Jul 2025467 PMAQI
17th Jul 2025478 PMAQI
17th Jul 2025459 PMAQI
17th Jul 20254710 PMAQI
17th Jul 20254911 PMAQI
18th Jul 20254712 AMAQI
18th Jul 2025461 AMAQI
18th Jul 2025412 AMAQI
18th Jul 2025403 AMAQI
18th Jul 2025364 AMAQI
18th Jul 2025315 AMAQI
21°C16/27°C
18th Jul 2025376 AMAQI
18th Jul 2025387 AMAQI
18th Jul 2025378 AMAQI
18th Jul 2025389 AMAQI
18th Jul 20253810 AMAQI
18th Jul 20253911 AMAQI
18th Jul 20253712 PMAQI
18th Jul 2025381 PMAQI
18th Jul 2025382 PMAQI
18th Jul 2025383 PMAQI
18th Jul 2025374 PMAQI
18th Jul 2025385 PMAQI
18th Jul 2025386 PMAQI
18th Jul 2025387 PMAQI
18th Jul 2025398 PMAQI
18th Jul 2025389 PMAQI
18th Jul 20253810 PMAQI
18th Jul 20254011 PMAQI
19th Jul 20253912 AMAQI
19th Jul 2025401 AMAQI
19th Jul 2025352 AMAQI
19th Jul 2025313 AMAQI
19th Jul 2025304 AMAQI
19th Jul 2025305 AMAQI
19°C17/23°C
19th Jul 2025336 AMAQI
19th Jul 2025327 AMAQI
19th Jul 2025328 AMAQI
19th Jul 2025349 AMAQI
19th Jul 20253410 AMAQI
19th Jul 20253111 AMAQI
19th Jul 20253012 PMAQI
19th Jul 2025301 PMAQI
19th Jul 2025322 PMAQI
19th Jul 2025333 PMAQI
19th Jul 2025334 PMAQI
19th Jul 2025325 PMAQI
19th Jul 2025336 PMAQI
19th Jul 2025337 PMAQI
19th Jul 2025328 PMAQI
19th Jul 2025329 PMAQI
19th Jul 20253310 PMAQI
19th Jul 20253411 PMAQI
20th Jul 20253412 AMAQI
20th Jul 2025331 AMAQI
20th Jul 2025342 AMAQI
20th Jul 2025333 AMAQI
20th Jul 2025374 AMAQI
20th Jul 2025405 AMAQI
19°C16/23°C
20th Jul 2025396 AMAQI
20th Jul 2025387 AMAQI
20th Jul 2025358 AMAQI
20th Jul 2025359 AMAQI
20th Jul 20252910 AMAQI
20th Jul 20252611 AMAQI
20th Jul 20252412 PMAQI
20th Jul 2025261 PMAQI
20th Jul 2025322 PMAQI
20th Jul 2025323 PMAQI
20th Jul 2025324 PMAQI
20th Jul 2025325 PMAQI
20th Jul 2025316 PMAQI
20th Jul 2025327 PMAQI
20th Jul 2025318 PMAQI
20th Jul 2025319 PMAQI
20th Jul 20253210 PMAQI
20th Jul 20253211 PMAQI
21st Jul 20253212 AMAQI
21st Jul 2025321 AMAQI
21st Jul 2025362 AMAQI
21st Jul 2025403 AMAQI
21st Jul 2025404 AMAQI
21st Jul 2025365 AMAQI
18°C15/21°C
21st Jul 2025326 AMAQI
21st Jul 2025327 AMAQI
21st Jul 2025318 AMAQI
21st Jul 2025319 AMAQI
21st Jul 20253110 AMAQI
21st Jul 20253111 AMAQI
21st Jul 20253012 PMAQI
21st Jul 2025271 PMAQI
21st Jul 2025302 PMAQI
21st Jul 2025303 PMAQI
21st Jul 2025324 PMAQI
21st Jul 2025325 PMAQI
21st Jul 2025326 PMAQI
21st Jul 2025317 PMAQI
21st Jul 2025318 PMAQI
21st Jul 2025319 PMAQI
21st Jul 20253110 PMAQI
21st Jul 20253211 PMAQI
22nd Jul 20253012 AMAQI
22nd Jul 2025321 AMAQI
22nd Jul 2025302 AMAQI
22nd Jul 2025283 AMAQI
22nd Jul 2025194 AMAQI
22nd Jul 2025235 AMAQI
19°C14/23°C
22nd Jul 2025256 AMAQI
22nd Jul 2025267 AMAQI
22nd Jul 2025298 AMAQI
22nd Jul 2025289 AMAQI
22nd Jul 20253010 AMAQI
22nd Jul 20252811 AMAQI
22nd Jul 20252312 PMAQI
22nd Jul 2025241 PMAQI
22nd Jul 2025262 PMAQI
22nd Jul 2025263 PMAQI
22nd Jul 2025254 PMAQI
22nd Jul 2025265 PMAQI
22nd Jul 2025266 PMAQI
22nd Jul 2025267 PMAQI
22nd Jul 2025258 PMAQI
22nd Jul 2025259 PMAQI
22nd Jul 20252410 PMAQI
22nd Jul 20252511 PMAQI
23rd Jul 20252512 AMAQI
23rd Jul 2025261 AMAQI
23rd Jul 2025252 AMAQI
23rd Jul 2025253 AMAQI
23rd Jul 2025264 AMAQI
23rd Jul 2025275 AMAQI
19°C13/26°C
23rd Jul 2025286 AMAQI
23rd Jul 2025287 AMAQI
23rd Jul 2025248 AMAQI
23rd Jul 2025249 AMAQI
23rd Jul 20252110 AMAQI
23rd Jul 20252211 AMAQI
23rd Jul 20252012 PMAQI
23rd Jul 2025211 PMAQI
23rd Jul 2025242 PMAQI
23rd Jul 2025243 PMAQI
23rd Jul 2025254 PMAQI
23rd Jul 2025245 PMAQI
23rd Jul 2025246 PMAQI
23rd Jul 2025247 PMAQI
23rd Jul 2025248 PMAQI
23rd Jul 2025249 PMAQI
23rd Jul 20252510 PMAQI
23rd Jul 20252411 PMAQI
24th Jul 20252512 AMAQI
24th Jul 2025251 AMAQI
24th Jul 2025202 AMAQI
24th Jul 2025163 AMAQI
24th Jul 2025164 AMAQI
24th Jul 2025175 AMAQI
18°C15/22°C
24th Jul 2025186 AMAQI
24th Jul 2025207 AMAQI
24th Jul 2025228 AMAQI
24th Jul 2025249 AMAQI
24th Jul 20252710 AMAQI
24th Jul 20252411 AMAQI
24th Jul 20252012 PMAQI
24th Jul 2025201 PMAQI
24th Jul 2025212 PMAQI
24th Jul 2025223 PMAQI
24th Jul 2025204 PMAQI
24th Jul 2025225 PMAQI
24th Jul 2025206 PMAQI
24th Jul 2025217 PMAQI
24th Jul 2025228 PMAQI
24th Jul 2025229 PMAQI
24th Jul 20252310 PMAQI
24th Jul 20252311 PMAQI
25th Jul 20252312 AMAQI
25th Jul 2025231 AMAQI
25th Jul 2025302 AMAQI
25th Jul 2025353 AMAQI
25th Jul 2025364 AMAQI
25th Jul 2025375 AMAQI
17°C14/21°C
25th Jul 2025316 AMAQI
25th Jul 2025337 AMAQI
25th Jul 2025338 AMAQI
25th Jul 2025319 AMAQI
25th Jul 20253210 AMAQI
25th Jul 20252811 AMAQI
25th Jul 20252812 PMAQI
25th Jul 2025301 PMAQI
25th Jul 2025322 PMAQI
25th Jul 2025313 PMAQI
25th Jul 2025304 PMAQI
25th Jul 2025355 PMAQI
25th Jul 2025306 PMAQI
25th Jul 2025327 PMAQI
25th Jul 2025328 PMAQI
25th Jul 2025319 PMAQI
25th Jul 20253010 PMAQI
25th Jul 20253111 PMAQI
26th Jul 20253112 AMAQI
26th Jul 2025311 AMAQI
26th Jul 2025412 AMAQI
26th Jul 2025453 AMAQI
26th Jul 2025424 AMAQI
26th Jul 2025425 AMAQI
18°C15/21°C
26th Jul 2025426 AMAQI
26th Jul 2025427 AMAQI
26th Jul 2025428 AMAQI
26th Jul 2025429 AMAQI
26th Jul 20254210 AMAQI
26th Jul 20254111 AMAQI
26th Jul 20254012 PMAQI
26th Jul 2025391 PMAQI
26th Jul 2025392 PMAQI
26th Jul 2025403 PMAQI
26th Jul 2025374 PMAQI
26th Jul 2025405 PMAQI
26th Jul 2025386 PMAQI
26th Jul 2025387 PMAQI
26th Jul 2025388 PMAQI
26th Jul 2025389 PMAQI
26th Jul 20254010 PMAQI
26th Jul 20253911 PMAQI
27th Jul 20253912 AMAQI
27th Jul 2025401 AMAQI
27th Jul 2025462 AMAQI
27th Jul 2025533 AMAQI
27th Jul 2025524 AMAQI
27th Jul 2025515 AMAQI
18°C14/23°C
27th Jul 2025486 AMAQI
27th Jul 2025457 AMAQI
27th Jul 2025428 AMAQI
27th Jul 2025439 AMAQI
27th Jul 20254210 AMAQI
27th Jul 20254111 AMAQI
27th Jul 20254012 PMAQI
27th Jul 2025421 PMAQI
27th Jul 2025412 PMAQI
27th Jul 2025403 PMAQI
27th Jul 2025394 PMAQI
27th Jul 2025395 PMAQI
27th Jul 2025406 PMAQI
27th Jul 2025407 PMAQI
27th Jul 2025408 PMAQI
27th Jul 2025409 PMAQI
27th Jul 20254110 PMAQI
27th Jul 20254211 PMAQI
28th Jul 20254212 AMAQI
28th Jul 2025411 AMAQI
28th Jul 2025402 AMAQI
28th Jul 2025203 AMAQI
28th Jul 2025204 AMAQI
28th Jul 2025255 AMAQI
18°C13/23°C
28th Jul 2025316 AMAQI
28th Jul 2025327 AMAQI
28th Jul 2025338 AMAQI
28th Jul 2025339 AMAQI
28th Jul 20253010 AMAQI
28th Jul 20252911 AMAQI
28th Jul 20252812 PMAQI
28th Jul 2025291 PMAQI
28th Jul 2025322 PMAQI
28th Jul 2025313 PMAQI
28th Jul 2025304 PMAQI
28th Jul 2025325 PMAQI
28th Jul 2025326 PMAQI
28th Jul 2025327 PMAQI
28th Jul 2025328 PMAQI
28th Jul 2025329 PMAQI
28th Jul 20253410 PMAQI
28th Jul 20253311 PMAQI
29th Jul 20253212 AMAQI
29th Jul 2025321 AMAQI
29th Jul 2025292 AMAQI
29th Jul 2025233 AMAQI
29th Jul 2025234 AMAQI
29th Jul 2025265 AMAQI
18°C15/21°C
29th Jul 2025306 AMAQI
29th Jul 2025317 AMAQI
29th Jul 2025308 AMAQI
29th Jul 2025289 AMAQI
29th Jul 20252810 AMAQI
29th Jul 20252611 AMAQI
29th Jul 20252712 PMAQI
29th Jul 2025261 PMAQI
29th Jul 2025302 PMAQI
29th Jul 2025303 PMAQI
29th Jul 2025304 PMAQI
29th Jul 2025305 PMAQI
29th Jul 2025296 PMAQI
29th Jul 2025307 PMAQI
29th Jul 2025308 PMAQI
29th Jul 2025319 PMAQI
29th Jul 20253010 PMAQI
29th Jul 20253011 PMAQI
30th Jul 20253012 AMAQI
30th Jul 2025291 AMAQI
30th Jul 2025282 AMAQI
30th Jul 2025263 AMAQI
30th Jul 2025284 AMAQI
30th Jul 2025295 AMAQI
18°C15/22°C
30th Jul 2025326 AMAQI
30th Jul 2025307 AMAQI
30th Jul 2025268 AMAQI
30th Jul 2025269 AMAQI
30th Jul 20252610 AMAQI
30th Jul 20252611 AMAQI
30th Jul 20252412 PMAQI
30th Jul 2025221 PMAQI
30th Jul 2025272 PMAQI
30th Jul 2025273 PMAQI
30th Jul 2025274 PMAQI
30th Jul 2025275 PMAQI
30th Jul 2025276 PMAQI
30th Jul 2025287 PMAQI
30th Jul 2025288 PMAQI
30th Jul 2025309 PMAQI
30th Jul 20253110 PMAQI
30th Jul 20253111 PMAQI
31st Jul 20253112 AMAQI
31st Jul 2025311 AMAQI
31st Jul 2025312 AMAQI
31st Jul 2025313 AMAQI
31st Jul 2025224 AMAQI
31st Jul 2025215 AMAQI
19°C16/23°C
31st Jul 2025226 AMAQI
31st Jul 2025237 AMAQI
31st Jul 2025228 AMAQI
31st Jul 2025269 AMAQI
31st Jul 20252410 AMAQI
31st Jul 20252411 AMAQI
31st Jul 20252412 PMAQI
31st Jul 2025241 PMAQI
31st Jul 2025222 PMAQI
31st Jul 2025223 PMAQI
31st Jul 2025214 PMAQI
31st Jul 2025225 PMAQI
31st Jul 2025236 PMAQI
31st Jul 2025237 PMAQI
31st Jul 2025218 PMAQI
31st Jul 2025249 PMAQI
31st Jul 20252210 PMAQI
31st Jul 20252211 PMAQI
1st Aug 20252212 AMAQI
1st Aug 2025231 AMAQI
1st Aug 2025242 AMAQI
1st Aug 2025263 AMAQI
1st Aug 2025314 AMAQI
1st Aug 2025325 AMAQI
18°C15/23°C
1st Aug 2025296 AMAQI
1st Aug 2025307 AMAQI
1st Aug 2025328 AMAQI
1st Aug 2025339 AMAQI
1st Aug 20253310 AMAQI
1st Aug 20252911 AMAQI
1st Aug 20252612 PMAQI
1st Aug 2025271 PMAQI
1st Aug 2025262 PMAQI
1st Aug 2025243 PMAQI
1st Aug 2025274 PMAQI
1st Aug 2025255 PMAQI
1st Aug 2025236 PMAQI
1st Aug 2025267 PMAQI
1st Aug 2025248 PMAQI
1st Aug 2025269 PMAQI
1st Aug 20252710 PMAQI
1st Aug 20252711 PMAQI
2nd Aug 20252612 AMAQI
2nd Aug 2025271 AMAQI
2nd Aug 2025252 AMAQI
2nd Aug 2025223 AMAQI
2nd Aug 2025234 AMAQI
2nd Aug 2025225 AMAQI
19°C15/23°C
2nd Aug 2025246 AMAQI
2nd Aug 2025267 AMAQI
2nd Aug 2025278 AMAQI
2nd Aug 2025269 AMAQI
2nd Aug 20252610 AMAQI
2nd Aug 20252211 AMAQI
2nd Aug 20252412 PMAQI
2nd Aug 2025231 PMAQI
2nd Aug 2025262 PMAQI
2nd Aug 2025253 PMAQI
2nd Aug 2025244 PMAQI
2nd Aug 2025245 PMAQI
2nd Aug 2025266 PMAQI
2nd Aug 2025267 PMAQI
2nd Aug 2025268 PMAQI
2nd Aug 2025249 PMAQI
2nd Aug 20252610 PMAQI
2nd Aug 20252511 PMAQI
3rd Aug 20252512 AMAQI
3rd Aug 2025251 AMAQI
3rd Aug 2025282 AMAQI
3rd Aug 2025253 AMAQI
3rd Aug 2025304 AMAQI
3rd Aug 2025315 AMAQI
19°C15/23°C
3rd Aug 2025356 AMAQI
3rd Aug 2025317 AMAQI
3rd Aug 2025288 AMAQI
3rd Aug 2025279 AMAQI
3rd Aug 20253310 AMAQI
3rd Aug 20253011 AMAQI
3rd Aug 20253112 PMAQI
3rd Aug 2025321 PMAQI
3rd Aug 2025272 PMAQI
3rd Aug 2025283 PMAQI
3rd Aug 2025284 PMAQI
3rd Aug 2025275 PMAQI
3rd Aug 2025276 PMAQI
3rd Aug 2025287 PMAQI
3rd Aug 2025298 PMAQI
3rd Aug 2025289 PMAQI
3rd Aug 20252810 PMAQI
3rd Aug 20252711 PMAQI
4th Aug 20252712 AMAQI
4th Aug 2025261 AMAQI
4th Aug 2025302 AMAQI
4th Aug 2025363 AMAQI
4th Aug 2025314 AMAQI
4th Aug 2025305 AMAQI
19°C14/24°C
4th Aug 2025326 AMAQI
4th Aug 2025357 AMAQI
4th Aug 2025348 AMAQI
4th Aug 2025339 AMAQI
4th Aug 20254610 AMAQI
4th Aug 20254711 AMAQI
4th Aug 20254712 PMAQI
4th Aug 2025381 PMAQI
4th Aug 2025382 PMAQI
4th Aug 2025393 PMAQI
4th Aug 2025344 PMAQI
4th Aug 2025355 PMAQI
4th Aug 2025356 PMAQI
4th Aug 2025367 PMAQI
4th Aug 2025358 PMAQI
4th Aug 2025349 PMAQI
4th Aug 20253210 PMAQI
4th Aug 20253211 PMAQI
5th Aug 20253212 AMAQI
5th Aug 2025331 AMAQI
5th Aug 2025382 AMAQI
5th Aug 2025403 AMAQI
5th Aug 2025414 AMAQI
5th Aug 2025445 AMAQI
22°C14/32°C
5th Aug 2025426 AMAQI
5th Aug 2025417 AMAQI
5th Aug 2025518 AMAQI
5th Aug 2025499 AMAQI
5th Aug 20254910 AMAQI
5th Aug 20254611 AMAQI
5th Aug 20254012 PMAQI
5th Aug 2025361 PMAQI
5th Aug 2025342 PMAQI
5th Aug 2025343 PMAQI
5th Aug 2025344 PMAQI
5th Aug 2025335 PMAQI
5th Aug 2025326 PMAQI
5th Aug 2025337 PMAQI
5th Aug 2025328 PMAQI
5th Aug 2025359 PMAQI
5th Aug 20253810 PMAQI
5th Aug 20253711 PMAQI
6th Aug 20253612 AMAQI
6th Aug 2025381 AMAQI
6th Aug 2025282 AMAQI
6th Aug 2025223 AMAQI
6th Aug 2025224 AMAQI
6th Aug 2025245 AMAQI
20°C15/24°C
6th Aug 2025286 AMAQI
6th Aug 2025287 AMAQI
6th Aug 2025348 AMAQI
6th Aug 2025339 AMAQI
6th Aug 20253010 AMAQI
6th Aug 20253011 AMAQI
6th Aug 20253212 PMAQI
6th Aug 2025331 PMAQI
6th Aug 2025312 PMAQI
6th Aug 2025303 PMAQI
6th Aug 2025324 PMAQI
6th Aug 2025345 PMAQI
6th Aug 2025326 PMAQI
6th Aug 2025337 PMAQI
6th Aug 2025328 PMAQI
6th Aug 2025329 PMAQI
6th Aug 20253010 PMAQI
6th Aug 20253011 PMAQI
7th Aug 20253212 AMAQI
7th Aug 2025311 AMAQI
7th Aug 2025352 AMAQI
7th Aug 2025343 AMAQI
7th Aug 2025364 AMAQI
7th Aug 2025295 AMAQI
21°C17/27°C
7th Aug 2025336 AMAQI
7th Aug 2025347 AMAQI
7th Aug 2025368 AMAQI
7th Aug 2025359 AMAQI
7th Aug 20253310 AMAQI
7th Aug 20253411 AMAQI
7th Aug 20253612 PMAQI
7th Aug 2025381 PMAQI
7th Aug 2025352 PMAQI
7th Aug 2025363 PMAQI
7th Aug 2025354 PMAQI
7th Aug 2025375 PMAQI
7th Aug 2025376 PMAQI
7th Aug 2025357 PMAQI
7th Aug 2025368 PMAQI
7th Aug 2025369 PMAQI
7th Aug 20253610 PMAQI
7th Aug 20253511 PMAQI
8th Aug 20253512 AMAQI
8th Aug 2025351 AMAQI
8th Aug 2025332 AMAQI
8th Aug 2025323 AMAQI
8th Aug 2025364 AMAQI
8th Aug 2025375 AMAQI
21°C16/29°C
8th Aug 2025366 AMAQI
8th Aug 2025387 AMAQI
8th Aug 2025388 AMAQI
8th Aug 2025379 AMAQI
8th Aug 20253710 AMAQI
8th Aug 20253811 AMAQI
8th Aug 20254012 PMAQI
8th Aug 2025381 PMAQI
8th Aug 2025372 PMAQI
8th Aug 2025363 PMAQI
8th Aug 2025364 PMAQI
8th Aug 2025375 PMAQI
8th Aug 2025376 PMAQI
8th Aug 2025357 PMAQI
8th Aug 2025368 PMAQI
8th Aug 2025379 PMAQI
8th Aug 20253610 PMAQI
8th Aug 20253711 PMAQI
9th Aug 20253612 AMAQI
9th Aug 2025351 AMAQI
9th Aug 2025312 AMAQI
9th Aug 2025283 AMAQI
9th Aug 2025344 AMAQI
9th Aug 2025375 AMAQI
21°C16/28°C
9th Aug 2025366 AMAQI
9th Aug 2025367 AMAQI
9th Aug 2025328 AMAQI
9th Aug 2025329 AMAQI
9th Aug 20253610 AMAQI
9th Aug 20253711 AMAQI
9th Aug 20253812 PMAQI
9th Aug 2025361 PMAQI
9th Aug 2025342 PMAQI
9th Aug 2025343 PMAQI
9th Aug 2025344 PMAQI
9th Aug 2025345 PMAQI
9th Aug 2025346 PMAQI
9th Aug 2025347 PMAQI
9th Aug 2025348 PMAQI
9th Aug 2025359 PMAQI
9th Aug 20253510 PMAQI
9th Aug 20253511 PMAQI
10th Aug 20253412 AMAQI
10th Aug 2025341 AMAQI
10th Aug 2025352 AMAQI
10th Aug 2025413 AMAQI
10th Aug 2025484 AMAQI
10th Aug 2025495 AMAQI
21°C16/27°C
10th Aug 2025426 AMAQI
10th Aug 2025437 AMAQI
10th Aug 2025448 AMAQI
10th Aug 2025409 AMAQI
10th Aug 20254210 AMAQI
10th Aug 20254211 AMAQI
10th Aug 20254512 PMAQI
10th Aug 2025421 PMAQI
10th Aug 2025382 PMAQI
10th Aug 2025383 PMAQI
10th Aug 2025384 PMAQI
10th Aug 2025405 PMAQI
10th Aug 2025406 PMAQI
10th Aug 2025427 PMAQI
10th Aug 2025408 PMAQI
10th Aug 2025429 PMAQI
10th Aug 20254010 PMAQI
10th Aug 20254011 PMAQI
11th Aug 20253912 AMAQI
11th Aug 2025391 AMAQI
11th Aug 2025452 AMAQI
11th Aug 2025603 AMAQI
11th Aug 2025584 AMAQI
11th Aug 2025585 AMAQI
24°C18/32°C
11th Aug 2025546 AMAQI
11th Aug 2025547 AMAQI
11th Aug 2025548 AMAQI
11th Aug 2025559 AMAQI
11th Aug 20255810 AMAQI
11th Aug 20255711 AMAQI
11th Aug 20256012 PMAQI
11th Aug 2025581 PMAQI
11th Aug 2025552 PMAQI
11th Aug 2025563 PMAQI
11th Aug 2025544 PMAQI
11th Aug 2025545 PMAQI
11th Aug 2025546 PMAQI
11th Aug 2025527 PMAQI
11th Aug 2025538 PMAQI
11th Aug 2025529 PMAQI
11th Aug 20255210 PMAQI
11th Aug 20255211 PMAQI
12th Aug 20255212 AMAQI
12th Aug 2025531 AMAQI
12th Aug 2025522 AMAQI
12th Aug 2025553 AMAQI
12th Aug 2025564 AMAQI
12th Aug 2025625 AMAQI
27°C22/34°C
12th Aug 2025586 AMAQI
6 AM12th Aug 2025587 AMAQI
12th Aug 2025598 AMAQI
12th Aug 2025619 AMAQI
12th Aug 20255910 AMAQI
12th Aug 20256311 AMAQI
12th Aug 20256212 PMAQI
12th Aug 2025591 PMAQI
1 PM12th Aug 2025592 PMAQI
12th Aug 2025583 PMAQI
12th Aug 2025594 PMAQI
9 PM
1 AM
5 AM
--°C/°C
Day time
Avg. Highest Time
6 AM - 9 PM
35AQI
16 hours / Day
480 hours / Month
Avg. Lowest Time
6 AM - 9 PM
35AQI
16 hours / Day
480 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 9 PM (Avg. 35), while the lowest AQI was between 6 AM to 9 PM (Avg. 35).
Night time
Avg. Highest Time
12 AM - 5 AM
35AQI
6 hours / Day
180 hours / Month
Avg. Lowest Time
12 AM - 11 PM
35AQI
8 hours / Day
240 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 5 AM (Avg. 35), while the lowest AQI was between 12 AM to 11 PM (Avg. 35).
2025 Days Vs Air Quality
Zalla, Portugalete, Basque Country, Spain
2025
91%
203
9%
20
Total number of days with different AQI categories in last 224 days in 2025 (141 days remaining)
Good
203 DaysModerate
20 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 91%
Health Risk Level:
Very Low
In 2025, 91% of 224 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
Zalla, Portugalete, Basque Country, Spain
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
57AQI
57AQI
2nd January 2025
40AQI
40AQI
3rd January 2025
37AQI
37AQI
4th January 2025
29AQI
29AQI
5th January 2025
30AQI
30AQI
6th January 2025
32AQI
32AQI
7th January 2025
32AQI
32AQI
8th January 2025
29AQI
29AQI
9th January 2025
27AQI
27AQI
10th January 2025
31AQI
31AQI
11th January 2025
28AQI
28AQI
12th January 2025
31AQI
31AQI
13th January 2025
41AQI
41AQI
14th January 2025
46AQI
46AQI
15th January 2025
52AQI
52AQI
16th January 2025
59AQI
59AQI
17th January 2025
49AQI
49AQI
18th January 2025
55AQI
55AQI
19th January 2025
46AQI
46AQI
20th January 2025
39AQI
39AQI
21st January 2025
39AQI
39AQI
22nd January 2025
31AQI
31AQI
23rd January 2025
30AQI
30AQI
24th January 2025
31AQI
31AQI
25th January 2025
28AQI
28AQI
26th January 2025
29AQI
29AQI
27th January 2025
30AQI
30AQI
28th January 2025
31AQI
31AQI
29th January 2025
30AQI
30AQI
30th January 2025
30AQI
30AQI
31st January 2025
32AQI
32AQI
1st February 2025
35AQI
35AQI
2nd February 2025
30AQI
30AQI
3rd February 2025
33AQI
33AQI
4th February 2025
40AQI
40AQI
5th February 2025
44AQI
44AQI
6th February 2025
49AQI
49AQI
7th February 2025
40AQI
40AQI
8th February 2025
33AQI
33AQI
9th February 2025
40AQI
40AQI
10th February 2025
38AQI
38AQI
11th February 2025
43AQI
43AQI
12th February 2025
38AQI
38AQI
13th February 2025
33AQI
33AQI
14th February 2025
36AQI
36AQI
15th February 2025
38AQI
38AQI
16th February 2025
45AQI
45AQI
17th February 2025
47AQI
47AQI
18th February 2025
47AQI
47AQI
19th February 2025
57AQI
57AQI
20th February 2025
45AQI
45AQI
21st February 2025
41AQI
41AQI
22nd February 2025
32AQI
32AQI
23rd February 2025
33AQI
33AQI
24th February 2025
30AQI
30AQI
25th February 2025
29AQI
29AQI
26th February 2025
28AQI
28AQI
27th February 2025
38AQI
38AQI
28th February 2025
40AQI
40AQI
1st March 2025
39AQI
39AQI
2nd March 2025
31AQI
31AQI
3rd March 2025
36AQI
36AQI
4th March 2025
47AQI
47AQI
5th March 2025
48AQI
48AQI
6th March 2025
38AQI
38AQI
7th March 2025
31AQI
31AQI
8th March 2025
31AQI
31AQI
9th March 2025
30AQI
30AQI
10th March 2025
33AQI
33AQI
11th March 2025
26AQI
26AQI
12th March 2025
26AQI
26AQI
13th March 2025
23AQI
23AQI
14th March 2025
26AQI
26AQI
15th March 2025
30AQI
30AQI
16th March 2025
29AQI
29AQI
17th March 2025
29AQI
29AQI
18th March 2025
29AQI
29AQI
19th March 2025
20AQI
20AQI
20th March 2025
35AQI
35AQI
21st March 2025
24AQI
24AQI
22nd March 2025
17AQI
17AQI
23rd March 2025
20AQI
20AQI
24th March 2025
27AQI
27AQI
25th March 2025
30AQI
30AQI
26th March 2025
32AQI
32AQI
27th March 2025
37AQI
37AQI
28th March 2025
38AQI
38AQI
29th March 2025
24AQI
24AQI
30th March 2025
30AQI
30AQI
31st March 2025
37AQI
37AQI
1st April 2025
36AQI
36AQI
2nd April 2025
43AQI
43AQI
3rd April 2025
22AQI
22AQI
4th April 2025
34AQI
34AQI
5th April 2025
21AQI
21AQI
6th April 2025
26AQI
26AQI
7th April 2025
36AQI
36AQI
8th April 2025
44AQI
44AQI
9th April 2025
51AQI
51AQI
10th April 2025
47AQI
47AQI
11th April 2025
44AQI
44AQI
12th April 2025
38AQI
38AQI
13th April 2025
29AQI
29AQI
14th April 2025
29AQI
29AQI
15th April 2025
17AQI
17AQI
16th April 2025
17AQI
17AQI
17th April 2025
23AQI
23AQI
18th April 2025
24AQI
24AQI
19th April 2025
13AQI
13AQI
20th April 2025
18AQI
18AQI
21st April 2025
21AQI
21AQI
22nd April 2025
18AQI
18AQI
23rd April 2025
20AQI
20AQI
24th April 2025
26AQI
26AQI
25th April 2025
34AQI
34AQI
26th April 2025
18AQI
18AQI
27th April 2025
20AQI
20AQI
28th April 2025
31AQI
31AQI
29th April 2025
27AQI
27AQI
30th April 2025
25AQI
25AQI
1st May 2025
27AQI
27AQI
2nd May 2025
37AQI
37AQI
3rd May 2025
22AQI
22AQI
4th May 2025
28AQI
28AQI
5th May 2025
25AQI
25AQI
6th May 2025
24AQI
24AQI
7th May 2025
31AQI
31AQI
8th May 2025
39AQI
39AQI
9th May 2025
43AQI
43AQI
10th May 2025
34AQI
34AQI
11th May 2025
26AQI
26AQI
12th May 2025
29AQI
29AQI
13th May 2025
31AQI
31AQI
14th May 2025
34AQI
34AQI
15th May 2025
23AQI
23AQI
16th May 2025
32AQI
32AQI
17th May 2025
46AQI
46AQI
18th May 2025
45AQI
45AQI
19th May 2025
37AQI
37AQI
20th May 2025
31AQI
31AQI
21st May 2025
33AQI
33AQI
22nd May 2025
22AQI
22AQI
23rd May 2025
32AQI
32AQI
24th May 2025
32AQI
32AQI
25th May 2025
33AQI
33AQI
26th May 2025
23AQI
23AQI
27th May 2025
26AQI
26AQI
28th May 2025
30AQI
30AQI
29th May 2025
33AQI
33AQI
30th May 2025
49AQI
49AQI
31st May 2025
45AQI
45AQI
1st June 2025
20AQI
20AQI
2nd June 2025
25AQI
25AQI
3rd June 2025
37AQI
37AQI
4th June 2025
37AQI
37AQI
5th June 2025
27AQI
27AQI
6th June 2025
27AQI
27AQI
7th June 2025
28AQI
28AQI
8th June 2025
46AQI
46AQI
9th June 2025
57AQI
57AQI
10th June 2025
63AQI
63AQI
11th June 2025
57AQI
57AQI
12th June 2025
55AQI
55AQI
13th June 2025
59AQI
59AQI
14th June 2025
52AQI
52AQI
15th June 2025
38AQI
38AQI
16th June 2025
34AQI
34AQI
17th June 2025
42AQI
42AQI
18th June 2025
45AQI
45AQI
19th June 2025
54AQI
54AQI
20th June 2025
56AQI
56AQI
21st June 2025
58AQI
58AQI
22nd June 2025
60AQI
60AQI
23rd June 2025
53AQI
53AQI
24th June 2025
57AQI
57AQI
25th June 2025
53AQI
53AQI
26th June 2025
48AQI
48AQI
27th June 2025
47AQI
47AQI
28th June 2025
39AQI
39AQI
29th June 2025
37AQI
37AQI
30th June 2025
43AQI
43AQI
1st July 2025
53AQI
53AQI
2nd July 2025
36AQI
36AQI
3rd July 2025
33AQI
33AQI
4th July 2025
35AQI
35AQI
5th July 2025
39AQI
39AQI
6th July 2025
37AQI
37AQI
7th July 2025
30AQI
30AQI
8th July 2025
28AQI
28AQI
9th July 2025
30AQI
30AQI
10th July 2025
32AQI
32AQI
11th July 2025
38AQI
38AQI
12th July 2025
40AQI
40AQI
13th July 2025
46AQI
46AQI
14th July 2025
42AQI
42AQI
15th July 2025
37AQI
37AQI
16th July 2025
43AQI
43AQI
17th July 2025
48AQI
48AQI
18th July 2025
40AQI
40AQI
19th July 2025
34AQI
34AQI
20th July 2025
33AQI
33AQI
21st July 2025
32AQI
32AQI
22nd July 2025
27AQI
27AQI
23rd July 2025
25AQI
25AQI
24th July 2025
22AQI
22AQI
25th July 2025
30AQI
30AQI
26th July 2025
38AQI
38AQI
27th July 2025
42AQI
42AQI
28th July 2025
33AQI
33AQI
29th July 2025
29AQI
29AQI
30th July 2025
28AQI
28AQI
31st July 2025
25AQI
25AQI
1st August 2025
26AQI
26AQI
2nd August 2025
25AQI
25AQI
3rd August 2025
28AQI
28AQI
4th August 2025
34AQI
34AQI
5th August 2025
37AQI
37AQI
6th August 2025
31AQI
31AQI
7th August 2025
34AQI
34AQI
8th August 2025
36AQI
36AQI
9th August 2025
35AQI
35AQI
10th August 2025
40AQI
40AQI
11th August 2025
50AQI
50AQI
36AQI
39AQI
31AQI
28AQI
32AQI
45AQI
35AQI
34AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202535AQI
27
4
27
1
31
29
1
31
17
13
30
1
11
203
20
Highest AQI recorded in
June45AQI
Lowest AQI recorded in
April28AQI
202437AQI
23
8
23
6
28
3
29
1
29
2
23
7
25
6
28
3
27
3
30
1
27
3
27
4
319
47
Highest AQI recorded in
July43AQI
Lowest AQI recorded in
October28AQI
202337AQI
31
21
7
28
3
29
1
24
7
22
8
28
1
25
5
23
7
20
11
29
29
2
309
52
Highest AQI recorded in
June43AQI
Lowest AQI recorded in
January27AQI
202237AQI
20
10
19
2
26
4
1
30
28
3
25
4
10
9
3
1
28
23
8
28
31
269
40
4
Highest AQI recorded in
July60AQI
Lowest AQI recorded in
November24AQI
202135AQI
28
2
25
3
27
4
27
3
30
1
25
5
29
2
31
27
3
31
30
28
3
338
26
Highest AQI recorded in
March41AQI
Lowest AQI recorded in
November29AQI
202032AQI
7
6
21
16
2
26
4
31
31
29
1
31
24
5
31
247
18
Highest AQI recorded in
March45AQI
Lowest AQI recorded in
December25AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2022(Avg.)
37AQILeast Polluted Year Recorded
2020(Avg.)
32AQIZalla's annual 2025 AQI (35) shows an average percentage change of -0.9% (improved AQI) compared to previous years: 2020 (32), 2021 (35), 2022 (37), 2023 (37), 2024 (37).
