Horta, Azores, Portugal Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
August Air Quality Analysis
Horta, Azores, Portugal
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
5th Aug 2021
360AQILowest AQI recorded on
8th Aug 2023
14AQISame Day Analysis (5th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 37 of Good air quality, showing improvement over 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 6th Aug - 7th Aug 2025
Horta, Azores, Portugal
AQI
Day
Night
.
6 AM6th Aug 2025
9 PM
5 AM7th Aug 2025
Day time
Avg. Highest Time
4PM6th Aug
48AQI
Avg. Lowest Time
8AM6th Aug
26AQI
Night time
Avg. Highest Time
3AM7th Aug
48AQI
Avg. Lowest Time
6AM6th Aug
28AQI
In the last 24 hours,
Horta's AQI reached its highest point of 48 at 4 PM during the Day, while the lowest point, 26, was recorded at 8 AM during the Day between 6th Aug and 7th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Horta, Azores, Portugal
JulAug
08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th
Day
Night
8th Jul 2025326 AMAQI
8th Jul 2025307 AMAQI
8th Jul 2025318 AMAQI
8th Jul 2025309 AMAQI
8th Jul 20253110 AMAQI
8th Jul 20253311 AMAQI
8th Jul 20253212 PMAQI
8th Jul 2025351 PMAQI
8th Jul 2025352 PMAQI
8th Jul 2025373 PMAQI
8th Jul 2025364 PMAQI
8th Jul 2025365 PMAQI
8th Jul 2025366 PMAQI
8th Jul 2025377 PMAQI
8th Jul 2025358 PMAQI
8th Jul 2025359 PMAQI
8th Jul 20253510 PMAQI
8th Jul 20253411 PMAQI
9th Jul 20253412 AMAQI
9th Jul 2025351 AMAQI
9th Jul 2025372 AMAQI
9th Jul 2025243 AMAQI
9th Jul 2025254 AMAQI
9th Jul 2025265 AMAQI
20°C19/21°C
9th Jul 2025286 AMAQI
9th Jul 2025277 AMAQI
9th Jul 2025268 AMAQI
9th Jul 2025269 AMAQI
9th Jul 20252610 AMAQI
9th Jul 20252611 AMAQI
9th Jul 20252812 PMAQI
9th Jul 2025311 PMAQI
9th Jul 2025322 PMAQI
9th Jul 2025323 PMAQI
9th Jul 2025304 PMAQI
9th Jul 2025325 PMAQI
9th Jul 2025316 PMAQI
9th Jul 2025327 PMAQI
9th Jul 2025318 PMAQI
9th Jul 2025339 PMAQI
9th Jul 20253310 PMAQI
9th Jul 20253211 PMAQI
10th Jul 20253312 AMAQI
10th Jul 2025321 AMAQI
10th Jul 2025302 AMAQI
10th Jul 2025263 AMAQI
10th Jul 2025254 AMAQI
10th Jul 2025305 AMAQI
21°C20/21°C
10th Jul 2025326 AMAQI
10th Jul 2025297 AMAQI
10th Jul 2025268 AMAQI
10th Jul 2025269 AMAQI
10th Jul 20252510 AMAQI
10th Jul 20252611 AMAQI
10th Jul 20252612 PMAQI
10th Jul 2025321 PMAQI
10th Jul 2025312 PMAQI
10th Jul 2025323 PMAQI
10th Jul 2025304 PMAQI
10th Jul 2025305 PMAQI
10th Jul 2025296 PMAQI
10th Jul 2025327 PMAQI
10th Jul 2025308 PMAQI
10th Jul 2025339 PMAQI
10th Jul 20253210 PMAQI
10th Jul 20253211 PMAQI
11th Jul 20253212 AMAQI
11th Jul 2025321 AMAQI
11th Jul 2025312 AMAQI
11th Jul 2025243 AMAQI
11th Jul 2025254 AMAQI
11th Jul 2025305 AMAQI
21°C20/22°C
11th Jul 2025306 AMAQI
11th Jul 2025297 AMAQI
11th Jul 2025288 AMAQI
11th Jul 2025289 AMAQI
11th Jul 20252610 AMAQI
11th Jul 20252811 AMAQI
11th Jul 20252812 PMAQI
11th Jul 2025311 PMAQI
11th Jul 2025282 PMAQI
11th Jul 2025283 PMAQI
11th Jul 2025284 PMAQI
11th Jul 2025285 PMAQI
11th Jul 2025296 PMAQI
11th Jul 2025327 PMAQI
11th Jul 2025328 PMAQI
11th Jul 2025339 PMAQI
11th Jul 20253210 PMAQI
11th Jul 20253311 PMAQI
12th Jul 20253312 AMAQI
12th Jul 2025321 AMAQI
12th Jul 2025292 AMAQI
12th Jul 2025253 AMAQI
12th Jul 2025264 AMAQI
12th Jul 2025315 AMAQI
22°C21/22°C
12th Jul 2025326 AMAQI
12th Jul 2025287 AMAQI
12th Jul 2025288 AMAQI
12th Jul 2025289 AMAQI
12th Jul 20253110 AMAQI
12th Jul 20253011 AMAQI
12th Jul 20253012 PMAQI
12th Jul 2025311 PMAQI
12th Jul 2025322 PMAQI
12th Jul 2025303 PMAQI
12th Jul 2025324 PMAQI
12th Jul 2025335 PMAQI
12th Jul 2025326 PMAQI
12th Jul 2025347 PMAQI
12th Jul 2025338 PMAQI
12th Jul 2025349 PMAQI
12th Jul 20253710 PMAQI
12th Jul 20253511 PMAQI
13th Jul 20253512 AMAQI
13th Jul 2025341 AMAQI
13th Jul 2025252 AMAQI
13th Jul 2025313 AMAQI
13th Jul 2025364 AMAQI
13th Jul 2025385 AMAQI
20°C20/21°C
13th Jul 2025386 AMAQI
13th Jul 2025407 AMAQI
13th Jul 2025488 AMAQI
13th Jul 2025449 AMAQI
13th Jul 20254010 AMAQI
13th Jul 20253611 AMAQI
13th Jul 20253312 PMAQI
13th Jul 2025371 PMAQI
13th Jul 2025412 PMAQI
13th Jul 2025363 PMAQI
13th Jul 2025344 PMAQI
13th Jul 2025355 PMAQI
13th Jul 2025346 PMAQI
13th Jul 2025337 PMAQI
13th Jul 2025368 PMAQI
13th Jul 2025389 PMAQI
13th Jul 20253910 PMAQI
13th Jul 20254011 PMAQI
14th Jul 20254012 AMAQI
14th Jul 2025371 AMAQI
14th Jul 2025362 AMAQI
14th Jul 2025283 AMAQI
14th Jul 2025254 AMAQI
14th Jul 2025325 AMAQI
20°C19/21°C
14th Jul 2025346 AMAQI
14th Jul 2025297 AMAQI
14th Jul 2025328 AMAQI
14th Jul 2025389 AMAQI
14th Jul 20254010 AMAQI
14th Jul 20254011 AMAQI
14th Jul 20253412 PMAQI
14th Jul 2025341 PMAQI
14th Jul 2025332 PMAQI
14th Jul 2025303 PMAQI
14th Jul 2025304 PMAQI
14th Jul 2025305 PMAQI
14th Jul 2025306 PMAQI
14th Jul 2025317 PMAQI
14th Jul 2025328 PMAQI
14th Jul 2025339 PMAQI
14th Jul 20253210 PMAQI
14th Jul 20253411 PMAQI
15th Jul 20253412 AMAQI
15th Jul 2025341 AMAQI
15th Jul 2025322 AMAQI
15th Jul 2025283 AMAQI
15th Jul 2025204 AMAQI
15th Jul 2025265 AMAQI
22°C21/23°C
15th Jul 2025266 AMAQI
15th Jul 2025257 AMAQI
15th Jul 2025268 AMAQI
15th Jul 2025279 AMAQI
15th Jul 20253110 AMAQI
15th Jul 20252811 AMAQI
15th Jul 20253312 PMAQI
15th Jul 2025281 PMAQI
15th Jul 2025312 PMAQI
15th Jul 2025283 PMAQI
15th Jul 2025314 PMAQI
15th Jul 2025325 PMAQI
15th Jul 2025326 PMAQI
15th Jul 2025307 PMAQI
15th Jul 2025318 PMAQI
15th Jul 2025329 PMAQI
15th Jul 20253010 PMAQI
15th Jul 20253211 PMAQI
16th Jul 20253012 AMAQI
16th Jul 2025291 AMAQI
16th Jul 2025262 AMAQI
16th Jul 2025213 AMAQI
16th Jul 2025224 AMAQI
16th Jul 2025255 AMAQI
22°C21/23°C
16th Jul 2025286 AMAQI
16th Jul 2025287 AMAQI
16th Jul 2025288 AMAQI
16th Jul 2025279 AMAQI
16th Jul 20252810 AMAQI
16th Jul 20252611 AMAQI
16th Jul 20252812 PMAQI
16th Jul 2025321 PMAQI
16th Jul 2025312 PMAQI
16th Jul 2025323 PMAQI
16th Jul 2025344 PMAQI
16th Jul 2025315 PMAQI
16th Jul 2025326 PMAQI
16th Jul 2025327 PMAQI
16th Jul 2025338 PMAQI
16th Jul 2025329 PMAQI
16th Jul 20253410 PMAQI
16th Jul 20253111 PMAQI
17th Jul 20253112 AMAQI
17th Jul 2025301 AMAQI
17th Jul 2025292 AMAQI
17th Jul 2025373 AMAQI
17th Jul 2025264 AMAQI
17th Jul 2025265 AMAQI
21°C21/22°C
17th Jul 2025306 AMAQI
17th Jul 2025287 AMAQI
17th Jul 2025268 AMAQI
17th Jul 2025289 AMAQI
17th Jul 20252710 AMAQI
17th Jul 20252811 AMAQI
17th Jul 20253012 PMAQI
17th Jul 2025321 PMAQI
17th Jul 2025342 PMAQI
17th Jul 2025343 PMAQI
17th Jul 2025324 PMAQI
17th Jul 2025335 PMAQI
17th Jul 2025336 PMAQI
17th Jul 2025327 PMAQI
17th Jul 2025368 PMAQI
17th Jul 2025379 PMAQI
17th Jul 20253210 PMAQI
17th Jul 20253211 PMAQI
18th Jul 20253212 AMAQI
18th Jul 2025341 AMAQI
18th Jul 2025322 AMAQI
18th Jul 2025233 AMAQI
18th Jul 2025244 AMAQI
18th Jul 2025255 AMAQI
21°C21/22°C
18th Jul 2025276 AMAQI
18th Jul 2025267 AMAQI
18th Jul 2025278 AMAQI
18th Jul 2025269 AMAQI
18th Jul 20252510 AMAQI
18th Jul 20252411 AMAQI
18th Jul 20252812 PMAQI
18th Jul 2025281 PMAQI
18th Jul 2025292 PMAQI
18th Jul 2025293 PMAQI
18th Jul 2025304 PMAQI
18th Jul 2025295 PMAQI
18th Jul 2025296 PMAQI
18th Jul 2025297 PMAQI
18th Jul 2025328 PMAQI
18th Jul 2025369 PMAQI
18th Jul 20253610 PMAQI
18th Jul 20253611 PMAQI
19th Jul 20254012 AMAQI
19th Jul 2025281 AMAQI
19th Jul 2025312 AMAQI
19th Jul 2025213 AMAQI
19th Jul 2025214 AMAQI
19th Jul 2025225 AMAQI
21°C20/21°C
19th Jul 2025246 AMAQI
19th Jul 2025267 AMAQI
19th Jul 2025228 AMAQI
19th Jul 2025239 AMAQI
19th Jul 20252210 AMAQI
19th Jul 20252211 AMAQI
19th Jul 20252212 PMAQI
19th Jul 2025231 PMAQI
19th Jul 2025262 PMAQI
19th Jul 2025263 PMAQI
19th Jul 2025264 PMAQI
19th Jul 2025245 PMAQI
19th Jul 2025246 PMAQI
19th Jul 2025257 PMAQI
19th Jul 2025268 PMAQI
19th Jul 2025279 PMAQI
19th Jul 20252710 PMAQI
19th Jul 20252811 PMAQI
20th Jul 20252912 AMAQI
20th Jul 2025281 AMAQI
20th Jul 2025272 AMAQI
20th Jul 2025243 AMAQI
20th Jul 2025254 AMAQI
20th Jul 2025235 AMAQI
22°C21/23°C
20th Jul 2025236 AMAQI
20th Jul 2025317 AMAQI
20th Jul 2025288 AMAQI
20th Jul 2025259 AMAQI
20th Jul 20252410 AMAQI
20th Jul 20252411 AMAQI
20th Jul 20252312 PMAQI
20th Jul 2025261 PMAQI
20th Jul 2025302 PMAQI
20th Jul 2025343 PMAQI
20th Jul 2025334 PMAQI
20th Jul 2025305 PMAQI
20th Jul 2025276 PMAQI
20th Jul 2025267 PMAQI
20th Jul 2025268 PMAQI
20th Jul 2025269 PMAQI
20th Jul 20252810 PMAQI
20th Jul 20252811 PMAQI
21st Jul 20252912 AMAQI
21st Jul 2025321 AMAQI
21st Jul 2025302 AMAQI
21st Jul 2025283 AMAQI
21st Jul 2025304 AMAQI
21st Jul 2025295 AMAQI
21°C21/22°C
21st Jul 2025306 AMAQI
21st Jul 2025287 AMAQI
21st Jul 2025268 AMAQI
21st Jul 2025269 AMAQI
21st Jul 20252410 AMAQI
21st Jul 20252711 AMAQI
21st Jul 20252712 PMAQI
21st Jul 2025261 PMAQI
21st Jul 2025262 PMAQI
21st Jul 2025253 PMAQI
21st Jul 2025264 PMAQI
21st Jul 2025345 PMAQI
21st Jul 2025366 PMAQI
21st Jul 2025347 PMAQI
21st Jul 2025348 PMAQI
21st Jul 2025309 PMAQI
21st Jul 20253010 PMAQI
21st Jul 20253011 PMAQI
22nd Jul 20253112 AMAQI
22nd Jul 2025291 AMAQI
22nd Jul 2025292 AMAQI
22nd Jul 2025343 AMAQI
22nd Jul 2025324 AMAQI
22nd Jul 2025325 AMAQI
22°C21/22°C
22nd Jul 2025316 AMAQI
22nd Jul 2025247 AMAQI
22nd Jul 2025288 AMAQI
22nd Jul 2025289 AMAQI
22nd Jul 20252810 AMAQI
22nd Jul 20252911 AMAQI
22nd Jul 20252812 PMAQI
22nd Jul 2025261 PMAQI
22nd Jul 2025292 PMAQI
22nd Jul 2025283 PMAQI
22nd Jul 2025424 PMAQI
22nd Jul 2025305 PMAQI
22nd Jul 2025286 PMAQI
22nd Jul 2025277 PMAQI
22nd Jul 2025288 PMAQI
22nd Jul 2025289 PMAQI
22nd Jul 20252910 PMAQI
22nd Jul 20252811 PMAQI
23rd Jul 20252712 AMAQI
23rd Jul 2025281 AMAQI
23rd Jul 2025262 AMAQI
23rd Jul 2025253 AMAQI
23rd Jul 2025274 AMAQI
23rd Jul 2025265 AMAQI
22°C21/23°C
23rd Jul 2025276 AMAQI
23rd Jul 2025297 AMAQI
23rd Jul 2025288 AMAQI
23rd Jul 2025269 AMAQI
23rd Jul 20252610 AMAQI
23rd Jul 20252711 AMAQI
23rd Jul 20252712 PMAQI
23rd Jul 2025261 PMAQI
23rd Jul 2025252 PMAQI
23rd Jul 2025263 PMAQI
23rd Jul 2025274 PMAQI
23rd Jul 2025285 PMAQI
23rd Jul 2025296 PMAQI
23rd Jul 2025307 PMAQI
23rd Jul 2025288 PMAQI
23rd Jul 2025279 PMAQI
23rd Jul 20252810 PMAQI
23rd Jul 20252811 PMAQI
24th Jul 20252612 AMAQI
24th Jul 2025281 AMAQI
24th Jul 2025272 AMAQI
24th Jul 2025263 AMAQI
24th Jul 2025274 AMAQI
24th Jul 2025245 AMAQI
22°C21/23°C
24th Jul 2025256 AMAQI
24th Jul 2025267 AMAQI
24th Jul 2025248 AMAQI
24th Jul 2025229 AMAQI
24th Jul 20252510 AMAQI
24th Jul 20252411 AMAQI
24th Jul 20252412 PMAQI
24th Jul 2025281 PMAQI
24th Jul 2025262 PMAQI
24th Jul 2025263 PMAQI
24th Jul 2025264 PMAQI
24th Jul 2025285 PMAQI
24th Jul 2025276 PMAQI
24th Jul 2025277 PMAQI
24th Jul 2025288 PMAQI
24th Jul 2025309 PMAQI
24th Jul 20253010 PMAQI
24th Jul 20253211 PMAQI
25th Jul 20252812 AMAQI
25th Jul 2025281 AMAQI
25th Jul 2025252 AMAQI
25th Jul 2025263 AMAQI
25th Jul 2025284 AMAQI
25th Jul 2025285 AMAQI
23°C22/24°C
25th Jul 2025326 AMAQI
25th Jul 2025257 AMAQI
25th Jul 2025228 AMAQI
25th Jul 2025229 AMAQI
25th Jul 20252310 AMAQI
25th Jul 20252211 AMAQI
25th Jul 20252612 PMAQI
25th Jul 2025261 PMAQI
25th Jul 2025292 PMAQI
25th Jul 2025273 PMAQI
25th Jul 2025274 PMAQI
25th Jul 2025285 PMAQI
25th Jul 2025266 PMAQI
25th Jul 2025267 PMAQI
25th Jul 2025288 PMAQI
25th Jul 2025299 PMAQI
25th Jul 20253010 PMAQI
25th Jul 20252911 PMAQI
26th Jul 20252812 AMAQI
26th Jul 2025301 AMAQI
26th Jul 2025292 AMAQI
26th Jul 2025233 AMAQI
26th Jul 2025234 AMAQI
26th Jul 2025245 AMAQI
23°C22/23°C
26th Jul 2025226 AMAQI
26th Jul 2025257 AMAQI
26th Jul 2025238 AMAQI
26th Jul 2025239 AMAQI
26th Jul 20252310 AMAQI
26th Jul 20252511 AMAQI
26th Jul 20252812 PMAQI
26th Jul 2025271 PMAQI
26th Jul 2025282 PMAQI
26th Jul 2025283 PMAQI
26th Jul 2025264 PMAQI
26th Jul 2025275 PMAQI
26th Jul 2025236 PMAQI
26th Jul 2025247 PMAQI
26th Jul 2025278 PMAQI
26th Jul 2025289 PMAQI
26th Jul 20252910 PMAQI
26th Jul 20253211 PMAQI
27th Jul 20253112 AMAQI
27th Jul 2025301 AMAQI
27th Jul 2025252 AMAQI
27th Jul 2025223 AMAQI
27th Jul 2025224 AMAQI
27th Jul 2025245 AMAQI
23°C22/23°C
27th Jul 2025256 AMAQI
27th Jul 2025247 AMAQI
27th Jul 2025278 AMAQI
27th Jul 2025269 AMAQI
27th Jul 20252510 AMAQI
27th Jul 20252611 AMAQI
27th Jul 20252312 PMAQI
27th Jul 2025241 PMAQI
27th Jul 2025232 PMAQI
27th Jul 2025243 PMAQI
27th Jul 2025244 PMAQI
27th Jul 2025265 PMAQI
27th Jul 2025306 PMAQI
27th Jul 2025327 PMAQI
27th Jul 2025308 PMAQI
27th Jul 2025329 PMAQI
27th Jul 20253210 PMAQI
27th Jul 20253411 PMAQI
28th Jul 20253112 AMAQI
28th Jul 2025331 AMAQI
28th Jul 2025312 AMAQI
28th Jul 2025263 AMAQI
28th Jul 2025274 AMAQI
28th Jul 2025275 AMAQI
23°C22/24°C
28th Jul 2025266 AMAQI
28th Jul 2025217 AMAQI
28th Jul 2025198 AMAQI
28th Jul 2025189 AMAQI
28th Jul 20252010 AMAQI
28th Jul 20252011 AMAQI
28th Jul 20252112 PMAQI
28th Jul 2025241 PMAQI
28th Jul 2025242 PMAQI
28th Jul 2025243 PMAQI
28th Jul 2025254 PMAQI
28th Jul 2025245 PMAQI
28th Jul 2025266 PMAQI
28th Jul 2025267 PMAQI
28th Jul 2025278 PMAQI
28th Jul 2025329 PMAQI
28th Jul 20253010 PMAQI
28th Jul 20252911 PMAQI
29th Jul 20253012 AMAQI
29th Jul 2025291 AMAQI
29th Jul 2025252 AMAQI
29th Jul 2025263 AMAQI
29th Jul 2025264 AMAQI
29th Jul 2025255 AMAQI
23°C22/24°C
29th Jul 2025226 AMAQI
29th Jul 2025237 AMAQI
29th Jul 2025208 AMAQI
29th Jul 2025199 AMAQI
29th Jul 20252010 AMAQI
29th Jul 20251911 AMAQI
29th Jul 20252112 PMAQI
29th Jul 2025221 PMAQI
29th Jul 2025232 PMAQI
29th Jul 2025243 PMAQI
29th Jul 2025244 PMAQI
29th Jul 2025265 PMAQI
29th Jul 2025266 PMAQI
29th Jul 2025277 PMAQI
29th Jul 2025278 PMAQI
29th Jul 2025289 PMAQI
29th Jul 20252710 PMAQI
29th Jul 20252711 PMAQI
30th Jul 20252812 AMAQI
30th Jul 2025281 AMAQI
30th Jul 2025282 AMAQI
30th Jul 2025263 AMAQI
30th Jul 2025284 AMAQI
30th Jul 2025285 AMAQI
22°C22/23°C
30th Jul 2025236 AMAQI
30th Jul 2025227 AMAQI
30th Jul 2025248 AMAQI
30th Jul 2025249 AMAQI
30th Jul 20252410 AMAQI
30th Jul 20252411 AMAQI
30th Jul 20252412 PMAQI
30th Jul 2025281 PMAQI
30th Jul 2025262 PMAQI
30th Jul 2025273 PMAQI
30th Jul 2025264 PMAQI
30th Jul 2025265 PMAQI
30th Jul 2025256 PMAQI
30th Jul 2025257 PMAQI
30th Jul 2025278 PMAQI
30th Jul 2025279 PMAQI
30th Jul 20252710 PMAQI
30th Jul 20252711 PMAQI
31st Jul 20252712 AMAQI
31st Jul 2025271 AMAQI
31st Jul 2025272 AMAQI
31st Jul 2025243 AMAQI
31st Jul 2025244 AMAQI
31st Jul 2025235 AMAQI
23°C22/23°C
31st Jul 2025226 AMAQI
31st Jul 2025217 AMAQI
31st Jul 2025218 AMAQI
31st Jul 2025229 AMAQI
31st Jul 20252210 AMAQI
31st Jul 20252111 AMAQI
31st Jul 20253612 PMAQI
31st Jul 2025411 PMAQI
31st Jul 2025482 PMAQI
31st Jul 2025523 PMAQI
31st Jul 2025444 PMAQI
31st Jul 2025425 PMAQI
31st Jul 2025506 PMAQI
31st Jul 2025467 PMAQI
31st Jul 2025448 PMAQI
31st Jul 2025449 PMAQI
31st Jul 20254210 PMAQI
31st Jul 20254011 PMAQI
1st Aug 20253812 AMAQI
1st Aug 2025471 AMAQI
1st Aug 2025432 AMAQI
1st Aug 2025483 AMAQI
1st Aug 2025524 AMAQI
1st Aug 2025505 AMAQI
22°C22/23°C
1st Aug 2025366 AMAQI
1st Aug 2025407 AMAQI
1st Aug 2025398 AMAQI
1st Aug 2025439 AMAQI
1st Aug 20253010 AMAQI
1st Aug 20254411 AMAQI
1st Aug 20253012 PMAQI
1st Aug 2025341 PMAQI
1st Aug 2025352 PMAQI
1st Aug 2025343 PMAQI
1st Aug 2025364 PMAQI
1st Aug 2025355 PMAQI
1st Aug 2025386 PMAQI
1st Aug 2025357 PMAQI
1st Aug 2025438 PMAQI
1st Aug 2025419 PMAQI
1st Aug 20254210 PMAQI
1st Aug 20254911 PMAQI
2nd Aug 20254712 AMAQI
2nd Aug 2025431 AMAQI
2nd Aug 2025312 AMAQI
2nd Aug 2025323 AMAQI
2nd Aug 2025444 AMAQI
2nd Aug 2025445 AMAQI
23°C22/24°C
2nd Aug 2025306 AMAQI
2nd Aug 2025307 AMAQI
2nd Aug 2025438 AMAQI
2nd Aug 2025259 AMAQI
2nd Aug 20252710 AMAQI
2nd Aug 20252611 AMAQI
2nd Aug 20253812 PMAQI
2nd Aug 2025291 PMAQI
2nd Aug 2025282 PMAQI
2nd Aug 2025363 PMAQI
2nd Aug 2025314 PMAQI
2nd Aug 2025365 PMAQI
2nd Aug 2025356 PMAQI
2nd Aug 2025327 PMAQI
2nd Aug 2025358 PMAQI
2nd Aug 2025469 PMAQI
2nd Aug 20254510 PMAQI
2nd Aug 20254811 PMAQI
3rd Aug 20254512 AMAQI
3rd Aug 2025461 AMAQI
3rd Aug 2025372 AMAQI
3rd Aug 2025393 AMAQI
3rd Aug 2025484 AMAQI
3rd Aug 2025385 AMAQI
23°C22/23°C
3rd Aug 2025286 AMAQI
3rd Aug 2025407 AMAQI
3rd Aug 2025268 AMAQI
3rd Aug 2025269 AMAQI
3rd Aug 20253410 AMAQI
3rd Aug 20253611 AMAQI
3rd Aug 20253212 PMAQI
3rd Aug 2025341 PMAQI
3rd Aug 2025362 PMAQI
3rd Aug 2025333 PMAQI
3rd Aug 2025374 PMAQI
3rd Aug 2025425 PMAQI
3rd Aug 2025316 PMAQI
3rd Aug 2025407 PMAQI
3rd Aug 2025388 PMAQI
3rd Aug 2025409 PMAQI
3rd Aug 20253910 PMAQI
3rd Aug 20254111 PMAQI
4th Aug 20253812 AMAQI
4th Aug 2025321 AMAQI
4th Aug 2025252 AMAQI
4th Aug 2025263 AMAQI
4th Aug 2025264 AMAQI
4th Aug 2025395 AMAQI
22°C22/22°C
4th Aug 2025366 AMAQI
4th Aug 2025357 AMAQI
4th Aug 2025258 AMAQI
4th Aug 2025369 AMAQI
4th Aug 20253110 AMAQI
4th Aug 20253811 AMAQI
4th Aug 20253312 PMAQI
4th Aug 2025301 PMAQI
4th Aug 2025302 PMAQI
4th Aug 2025353 PMAQI
4th Aug 2025404 PMAQI
4th Aug 2025375 PMAQI
4th Aug 2025376 PMAQI
4th Aug 2025347 PMAQI
4th Aug 2025408 PMAQI
4th Aug 2025449 PMAQI
4th Aug 20254110 PMAQI
4th Aug 20253811 PMAQI
5th Aug 20254712 AMAQI
5th Aug 2025421 AMAQI
5th Aug 2025352 AMAQI
5th Aug 2025323 AMAQI
5th Aug 2025364 AMAQI
5th Aug 2025295 AMAQI
23°C22/24°C
5th Aug 2025306 AMAQI
5th Aug 2025377 AMAQI
5th Aug 2025408 AMAQI
5th Aug 2025459 AMAQI
5th Aug 20253810 AMAQI
5th Aug 20253411 AMAQI
5th Aug 20253212 PMAQI
5th Aug 2025401 PMAQI
5th Aug 2025362 PMAQI
5th Aug 2025323 PMAQI
5th Aug 2025414 PMAQI
5th Aug 2025405 PMAQI
5th Aug 2025336 PMAQI
5th Aug 2025327 PMAQI
5th Aug 2025428 PMAQI
5th Aug 2025469 PMAQI
5th Aug 20254410 PMAQI
5th Aug 20253811 PMAQI
6th Aug 20254212 AMAQI
6th Aug 2025451 AMAQI
6th Aug 2025342 AMAQI
6th Aug 2025333 AMAQI
6th Aug 2025434 AMAQI
6th Aug 2025365 AMAQI
23°C22/24°C
6th Aug 2025286 AMAQI
6th Aug 2025267 AMAQI
6th Aug 2025268 AMAQI
6th Aug 2025299 AMAQI
6th Aug 20253010 AMAQI
6th Aug 20253611 AMAQI
6th Aug 20252912 PMAQI
6th Aug 2025321 PMAQI
6th Aug 2025392 PMAQI
6th Aug 2025343 PMAQI
6th Aug 2025484 PMAQI
6th Aug 2025395 PMAQI
6th Aug 2025406 PMAQI
6th Aug 2025447 PMAQI
6th Aug 2025388 PMAQI
6th Aug 2025419 PMAQI
6th Aug 20253910 PMAQI
6th Aug 20254611 PMAQI
7th Aug 20254212 AMAQI
7th Aug 2025371 AMAQI
7th Aug 2025452 AMAQI
7th Aug 2025483 AMAQI
7th Aug 2025444 AMAQI
7th Aug 2025485 AMAQI
24°C23/24°C
7th Aug 2025526 AMAQI
6 AM7th Aug 2025367 AMAQI
7th Aug 2025308 AMAQI
7th Aug 2025299 AMAQI
7th Aug 20253110 AMAQI
7th Aug 20253311 AMAQI
1 PM
9 PM
1 AM
5 AM
--°C/°C
Day time
Avg. Highest Time
1 PM - 9 PM
32AQI
9 hours / Day
270 hours / Month
Avg. Lowest Time
6 AM - 12 PM
28AQI
7 hours / Day
210 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 PM to 9 PM (Avg. 32), while the lowest AQI was between 6 AM to 12 PM (Avg. 28).
Night time
Avg. Highest Time
12 AM - 1 AM
34AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
3 AM - 5 AM
30AQI
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. 34), while the lowest AQI was between 3 AM to 5 AM (Avg. 30).
2025 Days Vs Air Quality
Horta, Azores, Portugal
2025
100%
216
0.4%
1
Total number of days with different AQI categories in last 219 days in 2025 (146 days remaining)
Good
216 DaysModerate
1 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 100%
Health Risk Level:
Very Low
In 2025, 100% of 219 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
Horta, Azores, Portugal
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
34AQI
34AQI
2nd January 2025
31AQI
31AQI
3rd January 2025
28AQI
28AQI
4th January 2025
28AQI
28AQI
5th January 2025
27AQI
27AQI
6th January 2025
24AQI
24AQI
7th January 2025
28AQI
28AQI
8th January 2025
28AQI
28AQI
9th January 2025
28AQI
28AQI
10th January 2025
25AQI
25AQI
11th January 2025
29AQI
29AQI
12th January 2025
34AQI
34AQI
13th January 2025
36AQI
36AQI
14th January 2025
31AQI
31AQI
15th January 2025
36AQI
36AQI
16th January 2025
58AQI
58AQI
17th January 2025
40AQI
40AQI
18th January 2025
33AQI
33AQI
19th January 2025
36AQI
36AQI
20th January 2025
35AQI
35AQI
21st January 2025
32AQI
32AQI
22nd January 2025
30AQI
30AQI
23rd January 2025
28AQI
28AQI
24th January 2025
28AQI
28AQI
25th January 2025
27AQI
27AQI
26th January 2025
28AQI
28AQI
27th January 2025
27AQI
27AQI
28th January 2025
28AQI
28AQI
29th January 2025
29AQI
29AQI
30th January 2025
28AQI
28AQI
31st January 2025
26AQI
26AQI
1st February 2025
27AQI
27AQI
2nd February 2025
28AQI
28AQI
3rd February 2025
26AQI
26AQI
4th February 2025
28AQI
28AQI
5th February 2025
27AQI
27AQI
6th February 2025
27AQI
27AQI
7th February 2025
29AQI
29AQI
8th February 2025
30AQI
30AQI
9th February 2025
28AQI
28AQI
10th February 2025
28AQI
28AQI
11th February 2025
28AQI
28AQI
12th February 2025
31AQI
31AQI
13th February 2025
29AQI
29AQI
14th February 2025
29AQI
29AQI
15th February 2025
33AQI
33AQI
16th February 2025
30AQI
30AQI
17th February 2025
29AQI
29AQI
18th February 2025
30AQI
30AQI
19th February 2025
28AQI
28AQI
20th February 2025
29AQI
29AQI
21st February 2025
28AQI
28AQI
22nd February 2025
29AQI
29AQI
23rd February 2025
28AQI
28AQI
24th February 2025
28AQI
28AQI
25th February 2025
34AQI
34AQI
26th February 2025
34AQI
34AQI
27th February 2025
38AQI
38AQI
28th February 2025
30AQI
30AQI
1st March 2025
36AQI
36AQI
2nd March 2025
31AQI
31AQI
3rd March 2025
29AQI
29AQI
4th March 2025
36AQI
36AQI
5th March 2025
27AQI
27AQI
6th March 2025
29AQI
29AQI
7th March 2025
30AQI
30AQI
8th March 2025
30AQI
30AQI
9th March 2025
32AQI
32AQI
10th March 2025
28AQI
28AQI
11th March 2025
30AQI
30AQI
12th March 2025
29AQI
29AQI
13th March 2025
26AQI
26AQI
14th March 2025
22AQI
22AQI
15th March 2025
19AQI
19AQI
16th March 2025
25AQI
25AQI
17th March 2025
21AQI
21AQI
18th March 2025
18AQI
18AQI
19th March 2025
26AQI
26AQI
20th March 2025
22AQI
22AQI
21st March 2025
17AQI
17AQI
22nd March 2025
20AQI
20AQI
23rd March 2025
23AQI
23AQI
24th March 2025
20AQI
20AQI
25th March 2025
28AQI
28AQI
26th March 2025
25AQI
25AQI
27th March 2025
20AQI
20AQI
28th March 2025
21AQI
21AQI
29th March 2025
26AQI
26AQI
30th March 2025
26AQI
26AQI
31st March 2025
32AQI
32AQI
1st April 2025
21AQI
21AQI
2nd April 2025
26AQI
26AQI
3rd April 2025
17AQI
17AQI
4th April 2025
19AQI
19AQI
5th April 2025
17AQI
17AQI
6th April 2025
14AQI
14AQI
7th April 2025
17AQI
17AQI
8th April 2025
20AQI
20AQI
9th April 2025
16AQI
16AQI
10th April 2025
19AQI
19AQI
11th April 2025
19AQI
19AQI
12th April 2025
21AQI
21AQI
13th April 2025
18AQI
18AQI
14th April 2025
19AQI
19AQI
15th April 2025
17AQI
17AQI
16th April 2025
15AQI
15AQI
17th April 2025
18AQI
18AQI
18th April 2025
22AQI
22AQI
19th April 2025
20AQI
20AQI
20th April 2025
19AQI
19AQI
21st April 2025
16AQI
16AQI
22nd April 2025
16AQI
16AQI
23rd April 2025
25AQI
25AQI
24th April 2025
20AQI
20AQI
25th April 2025
23AQI
23AQI
26th April 2025
19AQI
19AQI
27th April 2025
14AQI
14AQI
28th April 2025
15AQI
15AQI
29th April 2025
17AQI
17AQI
30th April 2025
19AQI
19AQI
1st May 2025
20AQI
20AQI
2nd May 2025
21AQI
21AQI
3rd May 2025
34AQI
34AQI
4th May 2025
24AQI
24AQI
5th May 2025
27AQI
27AQI
6th May 2025
19AQI
19AQI
7th May 2025
16AQI
16AQI
8th May 2025
17AQI
17AQI
9th May 2025
17AQI
17AQI
10th May 2025
16AQI
16AQI
11th May 2025
16AQI
16AQI
12th May 2025
17AQI
17AQI
13th May 2025
19AQI
19AQI
14th May 2025
19AQI
19AQI
15th May 2025
20AQI
20AQI
16th May 2025
25AQI
25AQI
17th May 2025
26AQI
26AQI
18th May 2025
22AQI
22AQI
19th May 2025
29AQI
29AQI
20th May 2025
22AQI
22AQI
21st May 2025
23AQI
23AQI
22nd May 2025
15AQI
15AQI
23rd May 2025
15AQI
15AQI
24th May 2025
17AQI
17AQI
25th May 2025
17AQI
17AQI
26th May 2025
18AQI
18AQI
27th May 2025
18AQI
18AQI
28th May 2025
18AQI
18AQI
29th May 2025
23AQI
23AQI
30th May 2025
22AQI
22AQI
31st May 2025
26AQI
26AQI
1st June 2025
29AQI
29AQI
2nd June 2025
28AQI
28AQI
3rd June 2025
27AQI
27AQI
4th June 2025
27AQI
27AQI
5th June 2025
27AQI
27AQI
6th June 2025
24AQI
24AQI
7th June 2025
22AQI
22AQI
8th June 2025
28AQI
28AQI
9th June 2025
32AQI
32AQI
10th June 2025
40AQI
40AQI
11th June 2025
44AQI
44AQI
12th June 2025
43AQI
43AQI
13th June 2025
36AQI
36AQI
14th June 2025
31AQI
31AQI
15th June 2025
27AQI
27AQI
16th June 2025
25AQI
25AQI
17th June 2025
30AQI
30AQI
18th June 2025
40AQI
40AQI
19th June 2025
44AQI
44AQI
20th June 2025
44AQI
44AQI
21st June 2025
42AQI
42AQI
22nd June 2025
43AQI
43AQI
23rd June 2025
42AQI
42AQI
24th June 2025
39AQI
39AQI
25th June 2025
36AQI
36AQI
26th June 2025
33AQI
33AQI
27th June 2025
30AQI
30AQI
28th June 2025
35AQI
35AQI
29th June 2025
39AQI
39AQI
30th June 2025
40AQI
40AQI
1st July 2025
45AQI
45AQI
2nd July 2025
38AQI
38AQI
3rd July 2025
34AQI
34AQI
4th July 2025
36AQI
36AQI
5th July 2025
41AQI
41AQI
6th July 2025
41AQI
41AQI
7th July 2025
38AQI
38AQI
8th July 2025
35AQI
35AQI
9th July 2025
31AQI
31AQI
10th July 2025
30AQI
30AQI
11th July 2025
30AQI
30AQI
12th July 2025
32AQI
32AQI
13th July 2025
36AQI
36AQI
14th July 2025
35AQI
35AQI
15th July 2025
30AQI
30AQI
16th July 2025
29AQI
29AQI
17th July 2025
31AQI
31AQI
18th July 2025
30AQI
30AQI
19th July 2025
25AQI
25AQI
20th July 2025
27AQI
27AQI
21st July 2025
30AQI
30AQI
22nd July 2025
29AQI
29AQI
23rd July 2025
27AQI
27AQI
24th July 2025
27AQI
27AQI
25th July 2025
27AQI
27AQI
26th July 2025
26AQI
26AQI
27th July 2025
27AQI
27AQI
28th July 2025
26AQI
26AQI
29th July 2025
25AQI
25AQI
30th July 2025
26AQI
26AQI
31st July 2025
34AQI
34AQI
1st August 2025
41AQI
41AQI
2nd August 2025
36AQI
36AQI
3rd August 2025
37AQI
37AQI
4th August 2025
35AQI
35AQI
5th August 2025
37AQI
37AQI
31AQI
29AQI
26AQI
19AQI
21AQI
34AQI
32AQI
37AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202528AQI
30
1
28
31
30
31
30
31
5
216
1
Highest AQI recorded in
August37AQI
Lowest AQI recorded in
April19AQI
202432AQI
23
8
16
6
1
23
16
12
30
31
31
7
30
1
29
1
29
2
277
18
1
Highest AQI recorded in
February45AQI
Lowest AQI recorded in
November25AQI
202338AQI
1
18
2
4
7
2
7
12
17
9
31
28
2
31
29
29
1
20
11
24
1
31
252
61
4
Highest AQI recorded in
January77AQI
Lowest AQI recorded in
July20AQI
202241AQI
29
4
14
30
22
2
27
9
1
14
16
1
6
4
8
1
152
23
4
8
1
Highest AQI recorded in
December127AQI
Lowest AQI recorded in
July18AQI
202129AQI
30
28
31
30
30
25
27
2
2
14
6
1
1
6
30
22
28
2
31
326
10
3
1
6
Highest AQI recorded in
August118AQI
Lowest AQI recorded in
June9AQI
202027AQI
13
12
1
5
2
1
18
30
30
27
23
31
30
28
242
1
5
2
1
Highest AQI recorded in
April88AQI
Lowest AQI recorded in
December10AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2022(Avg.)
41AQILeast Polluted Year Recorded
2020(Avg.)
27AQIHorta's annual 2025 AQI (28) shows an average percentage change of -15.5% (improved AQI) compared to previous years: 2020 (27), 2021 (29), 2022 (41), 2023 (38), 2024 (32).
