Santa Ana, San Jose, Costa Rica 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
Santa Ana, San Jose, Costa Rica
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
13th Aug 2021
70AQILowest AQI recorded on
1st Aug 2021
24AQISame Day Analysis (8th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 33 of Good air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 8th Aug - 9th Aug 2025
Santa Ana, San Jose, Costa Rica
AQI
Day
Night
.
5 AM8th Aug 2025
6 PM
4 AM9th Aug 2025
Day time
Avg. Highest Time
9AM8th Aug
39AQI
Avg. Lowest Time
5AM8th Aug
32AQI
Night time
Avg. Highest Time
1AM9th Aug
49AQI
Avg. Lowest Time
9PM8th Aug
37AQI
In the last 24 hours,
Santa Ana's AQI reached its highest point of 49 at 1 AM during the Night, while the lowest point, 32, was recorded at 5 AM during the Day between 8th Aug and 9th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Santa Ana, San Jose, Costa Rica
JulAug
10th - 11th11th - 12th12th - 13th13th - 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
Day
Night
10th Jul 2025385 AMAQI
10th Jul 2025356 AMAQI
10th Jul 2025357 AMAQI
10th Jul 2025368 AMAQI
10th Jul 2025349 AMAQI
10th Jul 20253710 AMAQI
10th Jul 20253811 AMAQI
10th Jul 20253412 PMAQI
10th Jul 2025351 PMAQI
10th Jul 2025382 PMAQI
10th Jul 2025363 PMAQI
10th Jul 2025374 PMAQI
10th Jul 2025375 PMAQI
10th Jul 2025376 PMAQI
10th Jul 2025327 PMAQI
10th Jul 2025328 PMAQI
10th Jul 2025359 PMAQI
10th Jul 20253610 PMAQI
10th Jul 20253811 PMAQI
11th Jul 20253612 AMAQI
11th Jul 2025321 AMAQI
11th Jul 2025312 AMAQI
11th Jul 2025313 AMAQI
11th Jul 2025374 AMAQI
18°C14/24°C
11th Jul 2025385 AMAQI
11th Jul 2025336 AMAQI
11th Jul 2025377 AMAQI
11th Jul 2025378 AMAQI
11th Jul 2025389 AMAQI
11th Jul 20253810 AMAQI
11th Jul 20253911 AMAQI
11th Jul 20253912 PMAQI
11th Jul 2025371 PMAQI
11th Jul 2025382 PMAQI
11th Jul 2025383 PMAQI
11th Jul 2025384 PMAQI
11th Jul 2025385 PMAQI
11th Jul 2025386 PMAQI
11th Jul 2025407 PMAQI
11th Jul 2025418 PMAQI
11th Jul 2025399 PMAQI
11th Jul 20254110 PMAQI
11th Jul 20254111 PMAQI
12th Jul 20253712 AMAQI
12th Jul 2025401 AMAQI
12th Jul 2025292 AMAQI
12th Jul 2025303 AMAQI
12th Jul 2025384 AMAQI
18°C15/23°C
12th Jul 2025335 AMAQI
12th Jul 2025356 AMAQI
12th Jul 2025397 AMAQI
12th Jul 2025338 AMAQI
12th Jul 2025389 AMAQI
12th Jul 20253910 AMAQI
12th Jul 20253911 AMAQI
12th Jul 20253612 PMAQI
12th Jul 2025401 PMAQI
12th Jul 2025412 PMAQI
12th Jul 2025423 PMAQI
12th Jul 2025404 PMAQI
12th Jul 2025405 PMAQI
12th Jul 2025406 PMAQI
12th Jul 2025427 PMAQI
12th Jul 2025448 PMAQI
12th Jul 2025419 PMAQI
12th Jul 20254210 PMAQI
12th Jul 20254111 PMAQI
13th Jul 20254312 AMAQI
13th Jul 2025391 AMAQI
13th Jul 2025392 AMAQI
13th Jul 2025393 AMAQI
13th Jul 2025444 AMAQI
18°C15/22°C
13th Jul 2025435 AMAQI
13th Jul 2025436 AMAQI
13th Jul 2025467 AMAQI
13th Jul 2025458 AMAQI
13th Jul 2025449 AMAQI
13th Jul 20254210 AMAQI
13th Jul 20254211 AMAQI
13th Jul 20254112 PMAQI
13th Jul 2025441 PMAQI
13th Jul 2025472 PMAQI
13th Jul 2025463 PMAQI
13th Jul 2025444 PMAQI
13th Jul 2025455 PMAQI
13th Jul 2025466 PMAQI
13th Jul 2025397 PMAQI
13th Jul 2025428 PMAQI
13th Jul 2025419 PMAQI
13th Jul 20253810 PMAQI
13th Jul 20253911 PMAQI
14th Jul 20253812 AMAQI
14th Jul 2025351 AMAQI
14th Jul 2025362 AMAQI
14th Jul 2025363 AMAQI
14th Jul 2025284 AMAQI
19°C14/25°C
14th Jul 2025345 AMAQI
14th Jul 2025406 AMAQI
14th Jul 2025407 AMAQI
14th Jul 2025358 AMAQI
14th Jul 2025369 AMAQI
14th Jul 20253410 AMAQI
14th Jul 20252911 AMAQI
14th Jul 20253312 PMAQI
14th Jul 2025381 PMAQI
14th Jul 2025362 PMAQI
14th Jul 2025383 PMAQI
14th Jul 2025384 PMAQI
14th Jul 2025385 PMAQI
14th Jul 2025406 PMAQI
14th Jul 2025417 PMAQI
14th Jul 2025378 PMAQI
14th Jul 2025389 PMAQI
14th Jul 20253810 PMAQI
14th Jul 20254011 PMAQI
15th Jul 20253812 AMAQI
15th Jul 2025351 AMAQI
15th Jul 2025322 AMAQI
15th Jul 2025333 AMAQI
15th Jul 2025344 AMAQI
19°C15/25°C
15th Jul 2025375 AMAQI
15th Jul 2025366 AMAQI
15th Jul 2025387 AMAQI
15th Jul 2025368 AMAQI
15th Jul 2025469 AMAQI
15th Jul 20253710 AMAQI
15th Jul 20253911 AMAQI
15th Jul 20253912 PMAQI
15th Jul 2025421 PMAQI
15th Jul 2025392 PMAQI
15th Jul 2025373 PMAQI
15th Jul 2025384 PMAQI
15th Jul 2025385 PMAQI
15th Jul 2025356 PMAQI
15th Jul 2025377 PMAQI
15th Jul 2025398 PMAQI
15th Jul 2025409 PMAQI
15th Jul 20253810 PMAQI
15th Jul 20254111 PMAQI
16th Jul 20254212 AMAQI
16th Jul 2025331 AMAQI
16th Jul 2025342 AMAQI
16th Jul 2025303 AMAQI
16th Jul 2025314 AMAQI
18°C14/26°C
16th Jul 2025325 AMAQI
16th Jul 2025396 AMAQI
16th Jul 2025407 AMAQI
16th Jul 2025398 AMAQI
16th Jul 2025469 AMAQI
16th Jul 20254610 AMAQI
16th Jul 20254511 AMAQI
16th Jul 20254412 PMAQI
16th Jul 2025381 PMAQI
16th Jul 2025392 PMAQI
16th Jul 2025403 PMAQI
16th Jul 2025394 PMAQI
16th Jul 2025405 PMAQI
16th Jul 2025406 PMAQI
16th Jul 2025397 PMAQI
16th Jul 2025378 PMAQI
16th Jul 2025369 PMAQI
16th Jul 20253610 PMAQI
16th Jul 20253811 PMAQI
17th Jul 20253912 AMAQI
17th Jul 2025391 AMAQI
17th Jul 2025342 AMAQI
17th Jul 2025353 AMAQI
17th Jul 2025434 AMAQI
19°C13/27°C
17th Jul 2025465 AMAQI
17th Jul 2025376 AMAQI
17th Jul 2025407 AMAQI
17th Jul 2025408 AMAQI
17th Jul 2025379 AMAQI
17th Jul 20253510 AMAQI
17th Jul 20253211 AMAQI
17th Jul 20253412 PMAQI
17th Jul 2025351 PMAQI
17th Jul 2025382 PMAQI
17th Jul 2025363 PMAQI
17th Jul 2025344 PMAQI
17th Jul 2025325 PMAQI
17th Jul 2025326 PMAQI
17th Jul 2025337 PMAQI
17th Jul 2025348 PMAQI
17th Jul 2025359 PMAQI
17th Jul 20253510 PMAQI
17th Jul 20253611 PMAQI
18th Jul 20253912 AMAQI
18th Jul 2025341 AMAQI
18th Jul 2025262 AMAQI
18th Jul 2025283 AMAQI
18th Jul 2025264 AMAQI
19°C14/27°C
18th Jul 2025335 AMAQI
18th Jul 2025326 AMAQI
18th Jul 2025347 AMAQI
18th Jul 2025348 AMAQI
18th Jul 2025339 AMAQI
18th Jul 20253010 AMAQI
18th Jul 20253111 AMAQI
18th Jul 20252912 PMAQI
18th Jul 2025341 PMAQI
18th Jul 2025362 PMAQI
18th Jul 2025363 PMAQI
18th Jul 2025364 PMAQI
18th Jul 2025355 PMAQI
18th Jul 2025386 PMAQI
18th Jul 2025347 PMAQI
18th Jul 2025388 PMAQI
18th Jul 2025389 PMAQI
18th Jul 20253610 PMAQI
18th Jul 20253811 PMAQI
19th Jul 20253912 AMAQI
19th Jul 2025341 AMAQI
19th Jul 2025342 AMAQI
19th Jul 2025303 AMAQI
19th Jul 2025304 AMAQI
20°C16/26°C
19th Jul 2025305 AMAQI
19th Jul 2025336 AMAQI
19th Jul 2025367 AMAQI
19th Jul 2025438 AMAQI
19th Jul 2025389 AMAQI
19th Jul 20253810 AMAQI
19th Jul 20253911 AMAQI
19th Jul 20253912 PMAQI
19th Jul 2025371 PMAQI
19th Jul 2025382 PMAQI
19th Jul 2025373 PMAQI
19th Jul 2025374 PMAQI
19th Jul 2025365 PMAQI
19th Jul 2025386 PMAQI
19th Jul 2025377 PMAQI
19th Jul 2025418 PMAQI
19th Jul 2025389 PMAQI
19th Jul 20253810 PMAQI
19th Jul 20253911 PMAQI
20th Jul 20253912 AMAQI
20th Jul 2025301 AMAQI
20th Jul 2025362 AMAQI
20th Jul 2025323 AMAQI
20th Jul 2025354 AMAQI
19°C16/24°C
20th Jul 2025335 AMAQI
20th Jul 2025406 AMAQI
20th Jul 2025387 AMAQI
20th Jul 2025388 AMAQI
20th Jul 2025379 AMAQI
20th Jul 20253810 AMAQI
20th Jul 20253311 AMAQI
20th Jul 20253812 PMAQI
20th Jul 2025351 PMAQI
20th Jul 2025412 PMAQI
20th Jul 2025393 PMAQI
20th Jul 2025404 PMAQI
20th Jul 2025385 PMAQI
20th Jul 2025416 PMAQI
20th Jul 2025417 PMAQI
20th Jul 2025408 PMAQI
20th Jul 2025389 PMAQI
20th Jul 20253910 PMAQI
20th Jul 20254911 PMAQI
21st Jul 20254312 AMAQI
21st Jul 2025451 AMAQI
21st Jul 2025352 AMAQI
21st Jul 2025223 AMAQI
21st Jul 2025364 AMAQI
19°C15/26°C
21st Jul 2025315 AMAQI
21st Jul 2025366 AMAQI
21st Jul 2025387 AMAQI
21st Jul 2025428 AMAQI
21st Jul 2025379 AMAQI
21st Jul 20253710 AMAQI
21st Jul 20253911 AMAQI
21st Jul 20254112 PMAQI
21st Jul 2025401 PMAQI
21st Jul 2025402 PMAQI
21st Jul 2025393 PMAQI
21st Jul 2025404 PMAQI
21st Jul 2025385 PMAQI
21st Jul 2025386 PMAQI
21st Jul 2025387 PMAQI
21st Jul 2025398 PMAQI
21st Jul 2025399 PMAQI
21st Jul 20254310 PMAQI
21st Jul 20254111 PMAQI
22nd Jul 20254112 AMAQI
22nd Jul 2025331 AMAQI
22nd Jul 2025312 AMAQI
22nd Jul 2025343 AMAQI
22nd Jul 2025344 AMAQI
19°C14/25°C
22nd Jul 2025335 AMAQI
22nd Jul 2025446 AMAQI
22nd Jul 2025477 AMAQI
22nd Jul 2025498 AMAQI
22nd Jul 2025439 AMAQI
22nd Jul 20254110 AMAQI
22nd Jul 20254211 AMAQI
22nd Jul 20254412 PMAQI
22nd Jul 2025431 PMAQI
22nd Jul 2025422 PMAQI
22nd Jul 2025433 PMAQI
22nd Jul 2025404 PMAQI
22nd Jul 2025395 PMAQI
22nd Jul 2025406 PMAQI
22nd Jul 2025427 PMAQI
22nd Jul 2025428 PMAQI
22nd Jul 2025439 PMAQI
22nd Jul 20254410 PMAQI
22nd Jul 20254611 PMAQI
23rd Jul 20254612 AMAQI
23rd Jul 2025481 AMAQI
23rd Jul 2025402 AMAQI
23rd Jul 2025353 AMAQI
23rd Jul 2025394 AMAQI
18°C15/23°C
23rd Jul 2025465 AMAQI
23rd Jul 2025506 AMAQI
23rd Jul 2025527 AMAQI
23rd Jul 2025528 AMAQI
23rd Jul 2025529 AMAQI
23rd Jul 20255110 AMAQI
23rd Jul 20254411 AMAQI
23rd Jul 20254112 PMAQI
23rd Jul 2025431 PMAQI
23rd Jul 2025452 PMAQI
23rd Jul 2025453 PMAQI
23rd Jul 2025444 PMAQI
23rd Jul 2025435 PMAQI
23rd Jul 2025426 PMAQI
23rd Jul 2025447 PMAQI
23rd Jul 2025448 PMAQI
23rd Jul 2025509 PMAQI
23rd Jul 20255110 PMAQI
23rd Jul 20255111 PMAQI
24th Jul 20255112 AMAQI
24th Jul 2025431 AMAQI
24th Jul 2025382 AMAQI
24th Jul 2025373 AMAQI
24th Jul 2025354 AMAQI
19°C15/25°C
24th Jul 2025385 AMAQI
24th Jul 2025426 AMAQI
24th Jul 2025437 AMAQI
24th Jul 2025408 AMAQI
24th Jul 2025419 AMAQI
24th Jul 20254110 AMAQI
24th Jul 20254311 AMAQI
24th Jul 20254312 PMAQI
24th Jul 2025361 PMAQI
24th Jul 2025382 PMAQI
24th Jul 2025383 PMAQI
24th Jul 2025384 PMAQI
24th Jul 2025375 PMAQI
24th Jul 2025386 PMAQI
24th Jul 2025387 PMAQI
24th Jul 2025418 PMAQI
24th Jul 2025419 PMAQI
24th Jul 20254110 PMAQI
24th Jul 20254211 PMAQI
25th Jul 20254412 AMAQI
25th Jul 2025401 AMAQI
25th Jul 2025272 AMAQI
25th Jul 2025253 AMAQI
25th Jul 2025254 AMAQI
19°C14/27°C
25th Jul 2025305 AMAQI
25th Jul 2025386 AMAQI
25th Jul 2025377 AMAQI
25th Jul 2025408 AMAQI
25th Jul 2025399 AMAQI
25th Jul 20253610 AMAQI
25th Jul 20253311 AMAQI
25th Jul 20253312 PMAQI
25th Jul 2025331 PMAQI
25th Jul 2025362 PMAQI
25th Jul 2025343 PMAQI
25th Jul 2025324 PMAQI
25th Jul 2025345 PMAQI
25th Jul 2025396 PMAQI
25th Jul 2025387 PMAQI
25th Jul 2025358 PMAQI
25th Jul 2025379 PMAQI
25th Jul 20253510 PMAQI
25th Jul 20253211 PMAQI
26th Jul 20253612 AMAQI
26th Jul 2025381 AMAQI
26th Jul 2025332 AMAQI
26th Jul 2025373 AMAQI
26th Jul 2025334 AMAQI
19°C15/25°C
26th Jul 2025345 AMAQI
26th Jul 2025326 AMAQI
26th Jul 2025357 AMAQI
26th Jul 2025378 AMAQI
26th Jul 2025369 AMAQI
26th Jul 20253810 AMAQI
26th Jul 20253411 AMAQI
26th Jul 20253812 PMAQI
26th Jul 2025361 PMAQI
26th Jul 2025332 PMAQI
26th Jul 2025333 PMAQI
26th Jul 2025364 PMAQI
26th Jul 2025315 PMAQI
26th Jul 2025336 PMAQI
26th Jul 2025357 PMAQI
26th Jul 2025318 PMAQI
26th Jul 2025329 PMAQI
26th Jul 20253010 PMAQI
26th Jul 20253111 PMAQI
27th Jul 20253012 AMAQI
27th Jul 2025311 AMAQI
27th Jul 2025392 AMAQI
27th Jul 2025303 AMAQI
27th Jul 2025364 AMAQI
18°C15/25°C
27th Jul 2025315 AMAQI
27th Jul 2025346 AMAQI
27th Jul 2025347 AMAQI
27th Jul 2025388 AMAQI
27th Jul 2025389 AMAQI
27th Jul 20253810 AMAQI
27th Jul 20253411 AMAQI
27th Jul 20253712 PMAQI
27th Jul 2025311 PMAQI
27th Jul 2025332 PMAQI
27th Jul 2025343 PMAQI
27th Jul 2025344 PMAQI
27th Jul 2025345 PMAQI
27th Jul 2025406 PMAQI
27th Jul 2025367 PMAQI
27th Jul 2025338 PMAQI
27th Jul 2025329 PMAQI
27th Jul 20253210 PMAQI
27th Jul 20253211 PMAQI
28th Jul 20253412 AMAQI
28th Jul 2025321 AMAQI
28th Jul 2025262 AMAQI
28th Jul 2025253 AMAQI
28th Jul 2025254 AMAQI
18°C15/23°C
28th Jul 2025275 AMAQI
28th Jul 2025306 AMAQI
28th Jul 2025337 AMAQI
28th Jul 2025348 AMAQI
28th Jul 2025389 AMAQI
28th Jul 20253910 AMAQI
28th Jul 20253411 AMAQI
28th Jul 20253712 PMAQI
28th Jul 2025391 PMAQI
28th Jul 2025352 PMAQI
28th Jul 2025343 PMAQI
28th Jul 2025324 PMAQI
28th Jul 2025345 PMAQI
28th Jul 2025346 PMAQI
28th Jul 2025347 PMAQI
28th Jul 2025338 PMAQI
28th Jul 2025349 PMAQI
28th Jul 20253410 PMAQI
28th Jul 20253811 PMAQI
29th Jul 20253112 AMAQI
29th Jul 2025311 AMAQI
29th Jul 2025322 AMAQI
29th Jul 2025323 AMAQI
29th Jul 2025314 AMAQI
18°C16/24°C
29th Jul 2025295 AMAQI
29th Jul 2025356 AMAQI
29th Jul 2025397 AMAQI
29th Jul 2025418 AMAQI
29th Jul 2025379 AMAQI
29th Jul 20253710 AMAQI
29th Jul 20253711 AMAQI
29th Jul 20253912 PMAQI
29th Jul 2025371 PMAQI
29th Jul 2025362 PMAQI
29th Jul 2025353 PMAQI
29th Jul 2025344 PMAQI
29th Jul 2025365 PMAQI
29th Jul 2025366 PMAQI
29th Jul 2025377 PMAQI
29th Jul 2025348 PMAQI
29th Jul 2025339 PMAQI
29th Jul 20253410 PMAQI
29th Jul 20253411 PMAQI
30th Jul 20253512 AMAQI
30th Jul 2025341 AMAQI
30th Jul 2025332 AMAQI
30th Jul 2025283 AMAQI
30th Jul 2025304 AMAQI
19°C16/24°C
30th Jul 2025355 AMAQI
30th Jul 2025366 AMAQI
30th Jul 2025357 AMAQI
30th Jul 2025398 AMAQI
30th Jul 2025399 AMAQI
30th Jul 20253910 AMAQI
30th Jul 20254211 AMAQI
30th Jul 20254512 PMAQI
30th Jul 2025481 PMAQI
30th Jul 2025482 PMAQI
30th Jul 2025483 PMAQI
30th Jul 2025484 PMAQI
30th Jul 2025485 PMAQI
30th Jul 2025486 PMAQI
30th Jul 2025487 PMAQI
30th Jul 2025408 PMAQI
30th Jul 2025379 PMAQI
30th Jul 20253710 PMAQI
30th Jul 20253811 PMAQI
31st Jul 20254112 AMAQI
31st Jul 2025411 AMAQI
31st Jul 2025352 AMAQI
31st Jul 2025353 AMAQI
31st Jul 2025344 AMAQI
19°C15/26°C
31st Jul 2025365 AMAQI
31st Jul 2025486 AMAQI
31st Jul 2025437 AMAQI
31st Jul 2025448 AMAQI
31st Jul 2025479 AMAQI
31st Jul 20255110 AMAQI
31st Jul 20255311 AMAQI
31st Jul 20255312 PMAQI
31st Jul 2025421 PMAQI
31st Jul 2025482 PMAQI
31st Jul 2025483 PMAQI
31st Jul 2025474 PMAQI
31st Jul 2025445 PMAQI
31st Jul 2025466 PMAQI
31st Jul 2025417 PMAQI
31st Jul 2025408 PMAQI
31st Jul 2025369 PMAQI
31st Jul 20253810 PMAQI
31st Jul 20254411 PMAQI
1st Aug 20254312 AMAQI
1st Aug 2025451 AMAQI
1st Aug 2025472 AMAQI
1st Aug 2025403 AMAQI
1st Aug 2025494 AMAQI
19°C15/26°C
1st Aug 2025435 AMAQI
1st Aug 2025456 AMAQI
1st Aug 2025487 AMAQI
1st Aug 2025548 AMAQI
1st Aug 2025519 AMAQI
1st Aug 20255310 AMAQI
1st Aug 20255211 AMAQI
1st Aug 20255312 PMAQI
1st Aug 2025521 PMAQI
1st Aug 2025542 PMAQI
1st Aug 2025513 PMAQI
1st Aug 2025524 PMAQI
1st Aug 2025545 PMAQI
1st Aug 2025506 PMAQI
1st Aug 2025517 PMAQI
1st Aug 2025548 PMAQI
1st Aug 2025559 PMAQI
1st Aug 20255210 PMAQI
1st Aug 20255111 PMAQI
2nd Aug 20255212 AMAQI
2nd Aug 2025531 AMAQI
2nd Aug 2025482 AMAQI
2nd Aug 2025483 AMAQI
2nd Aug 2025534 AMAQI
19°C14/26°C
2nd Aug 2025505 AMAQI
2nd Aug 2025516 AMAQI
2nd Aug 2025507 AMAQI
2nd Aug 2025518 AMAQI
2nd Aug 2025529 AMAQI
2nd Aug 20255310 AMAQI
2nd Aug 20254811 AMAQI
2nd Aug 20255012 PMAQI
2nd Aug 2025501 PMAQI
2nd Aug 2025492 PMAQI
2nd Aug 2025493 PMAQI
2nd Aug 2025494 PMAQI
2nd Aug 2025495 PMAQI
2nd Aug 2025476 PMAQI
2nd Aug 2025457 PMAQI
2nd Aug 2025458 PMAQI
2nd Aug 2025419 PMAQI
2nd Aug 20253610 PMAQI
2nd Aug 20254111 PMAQI
3rd Aug 20254212 AMAQI
3rd Aug 2025421 AMAQI
3rd Aug 2025462 AMAQI
3rd Aug 2025493 AMAQI
3rd Aug 2025454 AMAQI
19°C14/26°C
3rd Aug 2025415 AMAQI
3rd Aug 2025406 AMAQI
3rd Aug 2025407 AMAQI
3rd Aug 2025378 AMAQI
3rd Aug 2025409 AMAQI
3rd Aug 20254210 AMAQI
3rd Aug 20253411 AMAQI
3rd Aug 20253612 PMAQI
3rd Aug 2025411 PMAQI
3rd Aug 2025402 PMAQI
3rd Aug 2025423 PMAQI
3rd Aug 2025404 PMAQI
3rd Aug 2025385 PMAQI
3rd Aug 2025336 PMAQI
3rd Aug 2025397 PMAQI
3rd Aug 2025438 PMAQI
3rd Aug 2025429 PMAQI
3rd Aug 20254410 PMAQI
3rd Aug 20254611 PMAQI
4th Aug 20254412 AMAQI
4th Aug 2025391 AMAQI
4th Aug 2025412 AMAQI
4th Aug 2025403 AMAQI
4th Aug 2025354 AMAQI
18°C14/25°C
4th Aug 2025395 AMAQI
4th Aug 2025356 AMAQI
4th Aug 2025447 AMAQI
4th Aug 2025398 AMAQI
4th Aug 2025389 AMAQI
4th Aug 20253810 AMAQI
4th Aug 20254011 AMAQI
4th Aug 20254012 PMAQI
4th Aug 2025491 PMAQI
4th Aug 2025562 PMAQI
4th Aug 2025513 PMAQI
4th Aug 2025424 PMAQI
4th Aug 2025365 PMAQI
4th Aug 2025366 PMAQI
4th Aug 2025387 PMAQI
4th Aug 2025358 PMAQI
4th Aug 2025369 PMAQI
4th Aug 20252810 PMAQI
4th Aug 20253011 PMAQI
5th Aug 20253312 AMAQI
5th Aug 2025341 AMAQI
5th Aug 2025372 AMAQI
5th Aug 2025323 AMAQI
5th Aug 2025364 AMAQI
17°C14/24°C
5th Aug 2025335 AMAQI
5th Aug 2025386 AMAQI
5th Aug 2025417 AMAQI
5th Aug 2025498 AMAQI
5th Aug 2025519 AMAQI
5th Aug 20255310 AMAQI
5th Aug 20255411 AMAQI
5th Aug 20255412 PMAQI
5th Aug 2025471 PMAQI
5th Aug 2025442 PMAQI
5th Aug 2025453 PMAQI
5th Aug 2025484 PMAQI
5th Aug 2025455 PMAQI
5th Aug 2025326 PMAQI
5th Aug 2025407 PMAQI
5th Aug 2025438 PMAQI
5th Aug 2025469 PMAQI
5th Aug 20254210 PMAQI
5th Aug 20255011 PMAQI
6th Aug 20254412 AMAQI
6th Aug 2025321 AMAQI
6th Aug 2025282 AMAQI
6th Aug 2025333 AMAQI
6th Aug 2025374 AMAQI
17°C14/22°C
6th Aug 2025485 AMAQI
6th Aug 2025496 AMAQI
6th Aug 2025457 AMAQI
6th Aug 2025478 AMAQI
6th Aug 2025469 AMAQI
6th Aug 20254810 AMAQI
6th Aug 20255111 AMAQI
6th Aug 20255512 PMAQI
6th Aug 2025461 PMAQI
6th Aug 2025412 PMAQI
6th Aug 2025413 PMAQI
6th Aug 2025424 PMAQI
6th Aug 2025405 PMAQI
6th Aug 2025396 PMAQI
6th Aug 2025407 PMAQI
6th Aug 2025448 PMAQI
6th Aug 2025419 PMAQI
6th Aug 20254010 PMAQI
6th Aug 20254411 PMAQI
7th Aug 20254012 AMAQI
7th Aug 2025341 AMAQI
7th Aug 2025312 AMAQI
7th Aug 2025283 AMAQI
7th Aug 2025324 AMAQI
18°C14/25°C
7th Aug 2025275 AMAQI
7th Aug 2025336 AMAQI
7th Aug 2025347 AMAQI
7th Aug 2025348 AMAQI
7th Aug 2025319 AMAQI
7th Aug 20253410 AMAQI
7th Aug 20253811 AMAQI
7th Aug 20253712 PMAQI
7th Aug 2025351 PMAQI
7th Aug 2025322 PMAQI
7th Aug 2025343 PMAQI
7th Aug 2025334 PMAQI
7th Aug 2025345 PMAQI
7th Aug 2025356 PMAQI
7th Aug 2025357 PMAQI
7th Aug 2025358 PMAQI
7th Aug 2025359 PMAQI
7th Aug 20253410 PMAQI
7th Aug 20253411 PMAQI
8th Aug 20253512 AMAQI
8th Aug 2025391 AMAQI
8th Aug 2025332 AMAQI
8th Aug 2025393 AMAQI
8th Aug 2025364 AMAQI
18°C13/26°C
8th Aug 2025325 AMAQI
8th Aug 2025346 AMAQI
8th Aug 2025347 AMAQI
8th Aug 2025368 AMAQI
8th Aug 2025399 AMAQI
8th Aug 20253810 AMAQI
8th Aug 20253811 AMAQI
8th Aug 20253512 PMAQI
8th Aug 2025361 PMAQI
8th Aug 2025362 PMAQI
8th Aug 2025353 PMAQI
8th Aug 2025364 PMAQI
8th Aug 2025355 PMAQI
8th Aug 2025386 PMAQI
8th Aug 2025387 PMAQI
8th Aug 2025388 PMAQI
8th Aug 2025379 PMAQI
8th Aug 20254210 PMAQI
8th Aug 20254511 PMAQI
9th Aug 20254712 AMAQI
9th Aug 2025491 AMAQI
9th Aug 2025462 AMAQI
9th Aug 2025423 AMAQI
9th Aug 2025394 AMAQI
19°C13/27°C
5 AM
11 AM
6 PM
11 PM
4 AM
--°C/°C
Day time
Avg. Highest Time
6 AM - 6 PM
40AQI
13 hours / Day
390 hours / Month
Avg. Lowest Time
5 AM
36AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 6 PM (Avg. 40), while the lowest AQI was between 5 AM to 5 AM (Avg. 36).
Night time
Avg. Highest Time
12 AM - 1 AM
39AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
2 AM - 4 AM
35AQI
3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 1 AM (Avg. 39), while the lowest AQI was between 2 AM to 4 AM (Avg. 35).
2025 Days Vs Air Quality
Santa Ana, San Jose, Costa Rica
2025
65%
143
35%
77
Total number of days with different AQI categories in last 221 days in 2025 (144 days remaining)
Good
143 DaysModerate
77 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 65%
Health Risk Level:
Moderate
In 2025, 65% of 221 days were within WHO’s safe air quality limits, and 35% exceeded them. The risk of health issues is Moderate, particularly for individuals with respiratory or heart conditions.
Annual Air Quality Insights
Santa Ana, San Jose, Costa Rica
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
43AQI
43AQI
2nd January 2025
42AQI
42AQI
3rd January 2025
58AQI
58AQI
4th January 2025
52AQI
52AQI
5th January 2025
50AQI
50AQI
6th January 2025
52AQI
52AQI
7th January 2025
59AQI
59AQI
8th January 2025
57AQI
57AQI
9th January 2025
54AQI
54AQI
10th January 2025
53AQI
53AQI
11th January 2025
51AQI
51AQI
12th January 2025
52AQI
52AQI
13th January 2025
50AQI
50AQI
14th January 2025
53AQI
53AQI
15th January 2025
53AQI
53AQI
16th January 2025
46AQI
46AQI
17th January 2025
45AQI
45AQI
18th January 2025
49AQI
49AQI
19th January 2025
48AQI
48AQI
20th January 2025
49AQI
49AQI
21st January 2025
51AQI
51AQI
22nd January 2025
49AQI
49AQI
23rd January 2025
50AQI
50AQI
24th January 2025
56AQI
56AQI
25th January 2025
58AQI
58AQI
26th January 2025
57AQI
57AQI
27th January 2025
54AQI
54AQI
28th January 2025
54AQI
54AQI
29th January 2025
54AQI
54AQI
30th January 2025
52AQI
52AQI
31st January 2025
52AQI
52AQI
1st February 2025
53AQI
53AQI
2nd February 2025
55AQI
55AQI
3rd February 2025
57AQI
57AQI
4th February 2025
55AQI
55AQI
5th February 2025
55AQI
55AQI
6th February 2025
62AQI
62AQI
7th February 2025
59AQI
59AQI
8th February 2025
60AQI
60AQI
9th February 2025
57AQI
57AQI
10th February 2025
54AQI
54AQI
11th February 2025
55AQI
55AQI
12th February 2025
58AQI
58AQI
13th February 2025
50AQI
50AQI
14th February 2025
45AQI
45AQI
15th February 2025
44AQI
44AQI
16th February 2025
39AQI
39AQI
17th February 2025
33AQI
33AQI
18th February 2025
33AQI
33AQI
19th February 2025
39AQI
39AQI
20th February 2025
37AQI
37AQI
21st February 2025
32AQI
32AQI
22nd February 2025
34AQI
34AQI
23rd February 2025
33AQI
33AQI
24th February 2025
33AQI
33AQI
25th February 2025
36AQI
36AQI
26th February 2025
38AQI
38AQI
27th February 2025
44AQI
44AQI
28th February 2025
41AQI
41AQI
1st March 2025
43AQI
43AQI
2nd March 2025
37AQI
37AQI
3rd March 2025
40AQI
40AQI
4th March 2025
39AQI
39AQI
5th March 2025
41AQI
41AQI
6th March 2025
40AQI
40AQI
7th March 2025
37AQI
37AQI
8th March 2025
38AQI
38AQI
9th March 2025
37AQI
37AQI
10th March 2025
37AQI
37AQI
11th March 2025
37AQI
37AQI
12th March 2025
45AQI
45AQI
13th March 2025
55AQI
55AQI
14th March 2025
54AQI
54AQI
15th March 2025
46AQI
46AQI
16th March 2025
45AQI
45AQI
17th March 2025
56AQI
56AQI
18th March 2025
59AQI
59AQI
19th March 2025
56AQI
56AQI
20th March 2025
53AQI
53AQI
21st March 2025
54AQI
54AQI
22nd March 2025
54AQI
54AQI
23rd March 2025
52AQI
52AQI
24th March 2025
54AQI
54AQI
25th March 2025
62AQI
62AQI
26th March 2025
61AQI
61AQI
27th March 2025
62AQI
62AQI
28th March 2025
64AQI
64AQI
29th March 2025
64AQI
64AQI
30th March 2025
61AQI
61AQI
31st March 2025
62AQI
62AQI
1st April 2025
61AQI
61AQI
2nd April 2025
62AQI
62AQI
3rd April 2025
59AQI
59AQI
4th April 2025
57AQI
57AQI
5th April 2025
56AQI
56AQI
6th April 2025
52AQI
52AQI
7th April 2025
52AQI
52AQI
8th April 2025
48AQI
48AQI
9th April 2025
49AQI
49AQI
10th April 2025
51AQI
51AQI
11th April 2025
51AQI
51AQI
12th April 2025
54AQI
54AQI
13th April 2025
57AQI
57AQI
14th April 2025
57AQI
57AQI
15th April 2025
58AQI
58AQI
16th April 2025
60AQI
60AQI
17th April 2025
57AQI
57AQI
18th April 2025
58AQI
58AQI
19th April 2025
52AQI
52AQI
20th April 2025
52AQI
52AQI
21st April 2025
54AQI
54AQI
22nd April 2025
56AQI
56AQI
23rd April 2025
55AQI
55AQI
24th April 2025
51AQI
51AQI
25th April 2025
51AQI
51AQI
26th April 2025
52AQI
52AQI
27th April 2025
51AQI
51AQI
28th April 2025
52AQI
52AQI
29th April 2025
55AQI
55AQI
30th April 2025
53AQI
53AQI
1st May 2025
44AQI
44AQI
2nd May 2025
46AQI
46AQI
3rd May 2025
47AQI
47AQI
4th May 2025
48AQI
48AQI
5th May 2025
45AQI
45AQI
6th May 2025
47AQI
47AQI
7th May 2025
44AQI
44AQI
8th May 2025
48AQI
48AQI
9th May 2025
48AQI
48AQI
10th May 2025
44AQI
44AQI
11th May 2025
34AQI
34AQI
12th May 2025
35AQI
35AQI
13th May 2025
36AQI
36AQI
14th May 2025
44AQI
44AQI
15th May 2025
44AQI
44AQI
16th May 2025
42AQI
42AQI
17th May 2025
45AQI
45AQI
18th May 2025
47AQI
47AQI
19th May 2025
45AQI
45AQI
20th May 2025
41AQI
41AQI
21st May 2025
44AQI
44AQI
22nd May 2025
42AQI
42AQI
23rd May 2025
39AQI
39AQI
24th May 2025
41AQI
41AQI
25th May 2025
40AQI
40AQI
26th May 2025
41AQI
41AQI
27th May 2025
42AQI
42AQI
28th May 2025
38AQI
38AQI
29th May 2025
40AQI
40AQI
30th May 2025
43AQI
43AQI
31st May 2025
41AQI
41AQI
1st June 2025
39AQI
39AQI
2nd June 2025
42AQI
42AQI
3rd June 2025
43AQI
43AQI
4th June 2025
40AQI
40AQI
5th June 2025
40AQI
40AQI
6th June 2025
37AQI
37AQI
7th June 2025
37AQI
37AQI
8th June 2025
36AQI
36AQI
9th June 2025
34AQI
34AQI
10th June 2025
36AQI
36AQI
11th June 2025
38AQI
38AQI
12th June 2025
42AQI
42AQI
13th June 2025
37AQI
37AQI
14th June 2025
37AQI
37AQI
15th June 2025
34AQI
34AQI
16th June 2025
35AQI
35AQI
17th June 2025
34AQI
34AQI
18th June 2025
33AQI
33AQI
19th June 2025
31AQI
31AQI
20th June 2025
33AQI
33AQI
21st June 2025
31AQI
31AQI
22nd June 2025
31AQI
31AQI
23rd June 2025
32AQI
32AQI
24th June 2025
40AQI
40AQI
25th June 2025
38AQI
38AQI
26th June 2025
32AQI
32AQI
27th June 2025
35AQI
35AQI
28th June 2025
34AQI
34AQI
29th June 2025
34AQI
34AQI
30th June 2025
32AQI
32AQI
1st July 2025
30AQI
30AQI
2nd July 2025
30AQI
30AQI
3rd July 2025
34AQI
34AQI
4th July 2025
34AQI
34AQI
5th July 2025
40AQI
40AQI
6th July 2025
42AQI
42AQI
7th July 2025
37AQI
37AQI
8th July 2025
39AQI
39AQI
9th July 2025
47AQI
47AQI
10th July 2025
33AQI
33AQI
11th July 2025
37AQI
37AQI
12th July 2025
37AQI
37AQI
13th July 2025
43AQI
43AQI
14th July 2025
35AQI
35AQI
15th July 2025
35AQI
35AQI
16th July 2025
33AQI
33AQI
17th July 2025
35AQI
35AQI
18th July 2025
35AQI
35AQI
19th July 2025
37AQI
37AQI
20th July 2025
37AQI
37AQI
21st July 2025
39AQI
39AQI
22nd July 2025
38AQI
38AQI
23rd July 2025
43AQI
43AQI
24th July 2025
40AQI
40AQI
25th July 2025
36AQI
36AQI
26th July 2025
35AQI
35AQI
27th July 2025
33AQI
33AQI
28th July 2025
31AQI
31AQI
29th July 2025
33AQI
33AQI
30th July 2025
36AQI
36AQI
31st July 2025
42AQI
42AQI
1st August 2025
47AQI
47AQI
2nd August 2025
48AQI
48AQI
3rd August 2025
35AQI
35AQI
4th August 2025
31AQI
31AQI
5th August 2025
39AQI
39AQI
6th August 2025
40AQI
40AQI
7th August 2025
32AQI
32AQI
8th August 2025
33AQI
33AQI
52AQI
46AQI
50AQI
54AQI
43AQI
36AQI
37AQI
38AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202545AQI
11
20
16
12
14
17
2
28
31
30
31
8
143
77
Highest AQI recorded in
April54AQI
Lowest AQI recorded in
June36AQI
202443AQI
14
2
1
1
2
10
15
15
24
7
25
6
28
30
1
24
6
7
24
169
73
Highest AQI recorded in
April76AQI
Lowest AQI recorded in
October27AQI
202330AQI
24
25
27
3
20
9
30
1
29
1
3
1
5
5
3
29
2
196
21
Highest AQI recorded in
September51AQI
Lowest AQI recorded in
July7AQI
202229AQI
31
22
30
1
20
1
8
1
30
22
1
26
3
29
2
27
3
31
276
12
Highest AQI recorded in
August51AQI
Lowest AQI recorded in
January18AQI
202132AQI
30
24
3
28
1
28
31
29
1
29
2
20
2
26
2
22
4
13
24
304
15
Highest AQI recorded in
October39AQI
Lowest AQI recorded in
December21AQI
202036AQI
11
17
3
14
3
24
4
1
23
5
28
3
28
2
28
2
28
2
31
232
24
1
Highest AQI recorded in
June43AQI
Lowest AQI recorded in
December24AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2025(Avg.)
45AQILeast Polluted Year Recorded
2022(Avg.)
29AQISanta Ana's annual 2025 AQI (45) shows an average percentage change of 34.2% (worsened AQI) compared to previous years: 2020 (36), 2021 (32), 2022 (29), 2023 (30), 2024 (43).
