Siena, Tuscany, Italy 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
Siena, Tuscany, Italy
2021
2022
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
15th Aug 2021
60AQILowest AQI recorded on
29th Aug 2021
17AQISame Day Analysis (2nd August ):
On this day, AQI across the 4 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: 3rd Aug - 4th Aug 2025
Siena, Tuscany, Italy
AQI
Day
Night
.
5 AM3rd Aug 2025
8 PM
4 AM4th Aug 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
1PM3rd Aug
36AQI
Avg. Lowest Time
6AM3rd Aug
30AQI
In the last 24 hours,
Siena's AQI reached its highest point of 36 at 1 PM during the Night, while the lowest point, undefined, was recorded at 4 AM during the Night between 3rd Aug and 4th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Siena, Tuscany, Italy
JulAug
05th - 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 - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th
Day
Night
5th Jul 2025455 AMAQI
5th Jul 2025466 AMAQI
5th Jul 2025467 AMAQI
5th Jul 2025458 AMAQI
5th Jul 2025489 AMAQI
5th Jul 20254710 AMAQI
5th Jul 20254511 AMAQI
5th Jul 20254412 PMAQI
5th Jul 2025461 PMAQI
5th Jul 2025442 PMAQI
5th Jul 2025453 PMAQI
5th Jul 2025454 PMAQI
5th Jul 2025435 PMAQI
5th Jul 2025446 PMAQI
5th Jul 2025437 PMAQI
5th Jul 2025448 PMAQI
5th Jul 2025439 PMAQI
5th Jul 20254810 PMAQI
5th Jul 20254511 PMAQI
6th Jul 20254612 AMAQI
6th Jul 2025441 AMAQI
6th Jul 2025472 AMAQI
6th Jul 2025493 AMAQI
6th Jul 2025474 AMAQI
27°C23/31°C
6th Jul 2025465 AMAQI
6th Jul 2025496 AMAQI
6th Jul 2025487 AMAQI
6th Jul 2025478 AMAQI
6th Jul 2025459 AMAQI
6th Jul 20254810 AMAQI
6th Jul 20254611 AMAQI
6th Jul 20254812 PMAQI
6th Jul 2025481 PMAQI
6th Jul 2025482 PMAQI
6th Jul 2025463 PMAQI
6th Jul 2025464 PMAQI
6th Jul 2025475 PMAQI
6th Jul 2025466 PMAQI
6th Jul 2025477 PMAQI
6th Jul 2025448 PMAQI
6th Jul 2025449 PMAQI
6th Jul 20254510 PMAQI
6th Jul 20254511 PMAQI
7th Jul 20254412 AMAQI
7th Jul 2025461 AMAQI
7th Jul 2025362 AMAQI
7th Jul 2025303 AMAQI
7th Jul 2025294 AMAQI
26°C23/30°C
7th Jul 2025295 AMAQI
7th Jul 2025356 AMAQI
7th Jul 2025347 AMAQI
7th Jul 2025358 AMAQI
7th Jul 2025349 AMAQI
7th Jul 20253210 AMAQI
7th Jul 20253411 AMAQI
7th Jul 20253312 PMAQI
7th Jul 2025311 PMAQI
7th Jul 2025342 PMAQI
7th Jul 2025323 PMAQI
7th Jul 2025324 PMAQI
7th Jul 2025335 PMAQI
7th Jul 2025326 PMAQI
7th Jul 2025337 PMAQI
7th Jul 2025348 PMAQI
7th Jul 2025329 PMAQI
7th Jul 20253110 PMAQI
7th Jul 20252811 PMAQI
8th Jul 20253312 AMAQI
8th Jul 2025381 AMAQI
8th Jul 2025262 AMAQI
8th Jul 2025213 AMAQI
8th Jul 2025214 AMAQI
26°C22/29°C
8th Jul 2025245 AMAQI
8th Jul 2025276 AMAQI
8th Jul 2025257 AMAQI
8th Jul 2025268 AMAQI
8th Jul 2025289 AMAQI
8th Jul 20252710 AMAQI
8th Jul 20252811 AMAQI
8th Jul 20252812 PMAQI
8th Jul 2025291 PMAQI
8th Jul 2025292 PMAQI
8th Jul 2025303 PMAQI
8th Jul 2025314 PMAQI
8th Jul 2025325 PMAQI
8th Jul 2025346 PMAQI
8th Jul 2025317 PMAQI
8th Jul 2025338 PMAQI
8th Jul 2025319 PMAQI
8th Jul 20252810 PMAQI
8th Jul 20252911 PMAQI
9th Jul 20253012 AMAQI
9th Jul 2025331 AMAQI
9th Jul 2025292 AMAQI
9th Jul 2025243 AMAQI
9th Jul 2025224 AMAQI
25°C20/28°C
9th Jul 2025245 AMAQI
9th Jul 2025286 AMAQI
9th Jul 2025297 AMAQI
9th Jul 2025288 AMAQI
9th Jul 2025319 AMAQI
9th Jul 20252910 AMAQI
9th Jul 20252811 AMAQI
9th Jul 20252812 PMAQI
9th Jul 2025261 PMAQI
9th Jul 2025282 PMAQI
9th Jul 2025283 PMAQI
9th Jul 2025294 PMAQI
9th Jul 2025305 PMAQI
9th Jul 2025306 PMAQI
9th Jul 2025287 PMAQI
9th Jul 2025308 PMAQI
9th Jul 2025299 PMAQI
9th Jul 20253110 PMAQI
9th Jul 20253011 PMAQI
10th Jul 20253212 AMAQI
10th Jul 2025351 AMAQI
10th Jul 2025272 AMAQI
10th Jul 2025273 AMAQI
10th Jul 2025284 AMAQI
22°C15/29°C
10th Jul 2025265 AMAQI
10th Jul 2025286 AMAQI
10th Jul 2025277 AMAQI
10th Jul 2025308 AMAQI
10th Jul 2025289 AMAQI
10th Jul 20252910 AMAQI
10th Jul 20252911 AMAQI
10th Jul 20252912 PMAQI
10th Jul 2025281 PMAQI
10th Jul 2025312 PMAQI
10th Jul 2025303 PMAQI
10th Jul 2025294 PMAQI
10th Jul 2025305 PMAQI
10th Jul 2025316 PMAQI
10th Jul 2025327 PMAQI
10th Jul 2025318 PMAQI
10th Jul 2025329 PMAQI
10th Jul 20253310 PMAQI
10th Jul 20253211 PMAQI
11th Jul 20253212 AMAQI
11th Jul 2025351 AMAQI
11th Jul 2025292 AMAQI
11th Jul 2025243 AMAQI
11th Jul 2025234 AMAQI
23°C17/28°C
11th Jul 2025245 AMAQI
11th Jul 2025276 AMAQI
11th Jul 2025277 AMAQI
11th Jul 2025288 AMAQI
11th Jul 2025299 AMAQI
11th Jul 20253010 AMAQI
11th Jul 20253011 AMAQI
11th Jul 20253012 PMAQI
11th Jul 2025301 PMAQI
11th Jul 2025282 PMAQI
11th Jul 2025273 PMAQI
11th Jul 2025274 PMAQI
11th Jul 2025285 PMAQI
11th Jul 2025296 PMAQI
11th Jul 2025287 PMAQI
11th Jul 2025298 PMAQI
11th Jul 2025309 PMAQI
11th Jul 20252910 PMAQI
11th Jul 20253111 PMAQI
12th Jul 20253312 AMAQI
12th Jul 2025331 AMAQI
12th Jul 2025292 AMAQI
12th Jul 2025283 AMAQI
12th Jul 2025304 AMAQI
23°C17/27°C
12th Jul 2025305 AMAQI
12th Jul 2025376 AMAQI
12th Jul 2025377 AMAQI
12th Jul 2025348 AMAQI
12th Jul 2025339 AMAQI
12th Jul 20253610 AMAQI
12th Jul 20253311 AMAQI
12th Jul 20253112 PMAQI
12th Jul 2025321 PMAQI
12th Jul 2025312 PMAQI
12th Jul 2025313 PMAQI
12th Jul 2025314 PMAQI
12th Jul 2025325 PMAQI
12th Jul 2025326 PMAQI
12th Jul 2025337 PMAQI
12th Jul 2025328 PMAQI
12th Jul 2025359 PMAQI
12th Jul 20253410 PMAQI
12th Jul 20253211 PMAQI
13th Jul 20253412 AMAQI
13th Jul 2025371 AMAQI
13th Jul 2025322 AMAQI
13th Jul 2025303 AMAQI
13th Jul 2025344 AMAQI
23°C18/27°C
13th Jul 2025355 AMAQI
13th Jul 2025386 AMAQI
13th Jul 2025367 AMAQI
13th Jul 2025378 AMAQI
13th Jul 2025349 AMAQI
13th Jul 20253010 AMAQI
13th Jul 20253411 AMAQI
13th Jul 20253712 PMAQI
13th Jul 2025321 PMAQI
13th Jul 2025312 PMAQI
13th Jul 2025313 PMAQI
13th Jul 2025324 PMAQI
13th Jul 2025345 PMAQI
13th Jul 2025336 PMAQI
13th Jul 2025327 PMAQI
13th Jul 2025338 PMAQI
13th Jul 2025319 PMAQI
13th Jul 20253410 PMAQI
13th Jul 20253211 PMAQI
14th Jul 20253612 AMAQI
14th Jul 2025351 AMAQI
14th Jul 2025352 AMAQI
14th Jul 2025323 AMAQI
14th Jul 2025334 AMAQI
22°C19/26°C
14th Jul 2025355 AMAQI
14th Jul 2025386 AMAQI
14th Jul 2025367 AMAQI
14th Jul 2025358 AMAQI
14th Jul 2025329 AMAQI
14th Jul 20253210 AMAQI
14th Jul 20253311 AMAQI
14th Jul 20253212 PMAQI
14th Jul 2025331 PMAQI
14th Jul 2025332 PMAQI
14th Jul 2025333 PMAQI
14th Jul 2025344 PMAQI
14th Jul 2025345 PMAQI
14th Jul 2025356 PMAQI
14th Jul 2025357 PMAQI
14th Jul 2025348 PMAQI
14th Jul 2025349 PMAQI
14th Jul 20253610 PMAQI
14th Jul 20253611 PMAQI
15th Jul 20253512 AMAQI
15th Jul 2025351 AMAQI
15th Jul 2025362 AMAQI
15th Jul 2025363 AMAQI
15th Jul 2025384 AMAQI
23°C19/28°C
15th Jul 2025355 AMAQI
15th Jul 2025366 AMAQI
15th Jul 2025377 AMAQI
15th Jul 2025398 AMAQI
15th Jul 2025409 AMAQI
15th Jul 20254010 AMAQI
15th Jul 20253911 AMAQI
15th Jul 20253912 PMAQI
15th Jul 2025381 PMAQI
15th Jul 2025412 PMAQI
15th Jul 2025403 PMAQI
15th Jul 2025404 PMAQI
15th Jul 2025405 PMAQI
15th Jul 2025396 PMAQI
15th Jul 2025407 PMAQI
15th Jul 2025388 PMAQI
15th Jul 2025419 PMAQI
15th Jul 20253810 PMAQI
15th Jul 20253711 PMAQI
16th Jul 20253712 AMAQI
16th Jul 2025361 AMAQI
16th Jul 2025392 AMAQI
16th Jul 2025403 AMAQI
16th Jul 2025404 AMAQI
25°C20/30°C
16th Jul 2025385 AMAQI
16th Jul 2025406 AMAQI
16th Jul 2025417 AMAQI
16th Jul 2025418 AMAQI
16th Jul 2025419 AMAQI
16th Jul 20254110 AMAQI
16th Jul 20254111 AMAQI
16th Jul 20254212 PMAQI
16th Jul 2025391 PMAQI
16th Jul 2025402 PMAQI
16th Jul 2025403 PMAQI
16th Jul 2025404 PMAQI
16th Jul 2025415 PMAQI
16th Jul 2025406 PMAQI
16th Jul 2025397 PMAQI
16th Jul 2025388 PMAQI
16th Jul 2025399 PMAQI
16th Jul 20254010 PMAQI
16th Jul 20254011 PMAQI
17th Jul 20254012 AMAQI
17th Jul 2025381 AMAQI
17th Jul 2025402 AMAQI
17th Jul 2025423 AMAQI
17th Jul 2025434 AMAQI
27°C23/31°C
17th Jul 2025455 AMAQI
17th Jul 2025456 AMAQI
17th Jul 2025427 AMAQI
17th Jul 2025418 AMAQI
17th Jul 2025429 AMAQI
17th Jul 20254210 AMAQI
17th Jul 20253811 AMAQI
17th Jul 20253912 PMAQI
17th Jul 2025391 PMAQI
17th Jul 2025382 PMAQI
17th Jul 2025383 PMAQI
17th Jul 2025364 PMAQI
17th Jul 2025385 PMAQI
17th Jul 2025366 PMAQI
17th Jul 2025377 PMAQI
17th Jul 2025348 PMAQI
17th Jul 2025369 PMAQI
17th Jul 20253610 PMAQI
17th Jul 20253611 PMAQI
18th Jul 20253912 AMAQI
18th Jul 2025391 AMAQI
18th Jul 2025332 AMAQI
18th Jul 2025293 AMAQI
18th Jul 2025284 AMAQI
26°C21/29°C
18th Jul 2025255 AMAQI
18th Jul 2025316 AMAQI
18th Jul 2025327 AMAQI
18th Jul 2025318 AMAQI
18th Jul 2025339 AMAQI
18th Jul 20253510 AMAQI
18th Jul 20253411 AMAQI
18th Jul 20253312 PMAQI
18th Jul 2025331 PMAQI
18th Jul 2025342 PMAQI
18th Jul 2025323 PMAQI
18th Jul 2025314 PMAQI
18th Jul 2025305 PMAQI
18th Jul 2025336 PMAQI
18th Jul 2025357 PMAQI
18th Jul 2025338 PMAQI
18th Jul 2025369 PMAQI
18th Jul 20253510 PMAQI
18th Jul 20253611 PMAQI
19th Jul 20253312 AMAQI
19th Jul 2025321 AMAQI
19th Jul 2025372 AMAQI
19th Jul 2025393 AMAQI
19th Jul 2025374 AMAQI
25°C21/29°C
19th Jul 2025335 AMAQI
19th Jul 2025356 AMAQI
19th Jul 2025357 AMAQI
19th Jul 2025348 AMAQI
19th Jul 2025359 AMAQI
19th Jul 20253410 AMAQI
19th Jul 20253411 AMAQI
19th Jul 20253212 PMAQI
19th Jul 2025311 PMAQI
19th Jul 2025302 PMAQI
19th Jul 2025313 PMAQI
19th Jul 2025324 PMAQI
19th Jul 2025325 PMAQI
19th Jul 2025326 PMAQI
19th Jul 2025327 PMAQI
19th Jul 2025318 PMAQI
19th Jul 2025339 PMAQI
19th Jul 20253710 PMAQI
19th Jul 20253811 PMAQI
20th Jul 20253712 AMAQI
20th Jul 2025341 AMAQI
20th Jul 2025372 AMAQI
20th Jul 2025413 AMAQI
20th Jul 2025404 AMAQI
25°C21/29°C
20th Jul 2025415 AMAQI
20th Jul 2025396 AMAQI
20th Jul 2025437 AMAQI
20th Jul 2025468 AMAQI
20th Jul 2025429 AMAQI
20th Jul 20254210 AMAQI
20th Jul 20254411 AMAQI
20th Jul 20254212 PMAQI
20th Jul 2025401 PMAQI
20th Jul 2025412 PMAQI
20th Jul 2025383 PMAQI
20th Jul 2025374 PMAQI
20th Jul 2025395 PMAQI
20th Jul 2025396 PMAQI
20th Jul 2025387 PMAQI
20th Jul 2025388 PMAQI
20th Jul 2025399 PMAQI
20th Jul 20253910 PMAQI
20th Jul 20254011 PMAQI
21st Jul 20253812 AMAQI
21st Jul 2025381 AMAQI
21st Jul 2025392 AMAQI
21st Jul 2025383 AMAQI
21st Jul 2025404 AMAQI
26°C22/29°C
21st Jul 2025415 AMAQI
21st Jul 2025446 AMAQI
21st Jul 2025447 AMAQI
21st Jul 2025428 AMAQI
21st Jul 2025419 AMAQI
21st Jul 20254010 AMAQI
21st Jul 20253811 AMAQI
21st Jul 20253712 PMAQI
21st Jul 2025381 PMAQI
21st Jul 2025342 PMAQI
21st Jul 2025323 PMAQI
21st Jul 2025334 PMAQI
21st Jul 2025335 PMAQI
21st Jul 2025326 PMAQI
21st Jul 2025307 PMAQI
21st Jul 2025308 PMAQI
21st Jul 2025329 PMAQI
21st Jul 20253210 PMAQI
21st Jul 20253411 PMAQI
22nd Jul 20253512 AMAQI
22nd Jul 2025381 AMAQI
22nd Jul 2025272 AMAQI
22nd Jul 2025243 AMAQI
22nd Jul 2025224 AMAQI
26°C23/29°C
22nd Jul 2025245 AMAQI
22nd Jul 2025256 AMAQI
22nd Jul 2025267 AMAQI
22nd Jul 2025258 AMAQI
22nd Jul 2025239 AMAQI
22nd Jul 20252510 AMAQI
22nd Jul 20253011 AMAQI
22nd Jul 20253012 PMAQI
22nd Jul 2025341 PMAQI
22nd Jul 2025282 PMAQI
22nd Jul 2025323 PMAQI
22nd Jul 2025294 PMAQI
22nd Jul 2025325 PMAQI
22nd Jul 2025326 PMAQI
22nd Jul 2025337 PMAQI
22nd Jul 2025318 PMAQI
22nd Jul 2025299 PMAQI
22nd Jul 20252810 PMAQI
22nd Jul 20252611 PMAQI
23rd Jul 20252812 AMAQI
23rd Jul 2025291 AMAQI
23rd Jul 2025302 AMAQI
23rd Jul 2025303 AMAQI
23rd Jul 2025304 AMAQI
26°C21/30°C
23rd Jul 2025315 AMAQI
23rd Jul 2025286 AMAQI
23rd Jul 2025307 AMAQI
23rd Jul 2025308 AMAQI
23rd Jul 2025329 AMAQI
23rd Jul 20253210 AMAQI
23rd Jul 20253111 AMAQI
23rd Jul 20252812 PMAQI
23rd Jul 2025261 PMAQI
23rd Jul 2025292 PMAQI
23rd Jul 2025283 PMAQI
23rd Jul 2025274 PMAQI
23rd Jul 2025295 PMAQI
23rd Jul 2025266 PMAQI
23rd Jul 2025297 PMAQI
23rd Jul 2025278 PMAQI
23rd Jul 2025289 PMAQI
23rd Jul 20253110 PMAQI
23rd Jul 20252311 PMAQI
24th Jul 20252612 AMAQI
24th Jul 2025301 AMAQI
24th Jul 2025262 AMAQI
24th Jul 2025233 AMAQI
24th Jul 2025244 AMAQI
24°C19/29°C
24th Jul 2025275 AMAQI
24th Jul 2025286 AMAQI
24th Jul 2025287 AMAQI
24th Jul 2025288 AMAQI
24th Jul 2025289 AMAQI
24th Jul 20252810 AMAQI
24th Jul 20252511 AMAQI
24th Jul 20252412 PMAQI
24th Jul 2025251 PMAQI
24th Jul 2025262 PMAQI
24th Jul 2025263 PMAQI
24th Jul 2025254 PMAQI
24th Jul 2025265 PMAQI
24th Jul 2025256 PMAQI
24th Jul 2025257 PMAQI
24th Jul 2025258 PMAQI
24th Jul 2025259 PMAQI
24th Jul 20252410 PMAQI
24th Jul 20252211 PMAQI
25th Jul 20252412 AMAQI
25th Jul 2025271 AMAQI
25th Jul 2025252 AMAQI
25th Jul 2025213 AMAQI
25th Jul 2025224 AMAQI
25°C20/29°C
25th Jul 2025205 AMAQI
25th Jul 2025226 AMAQI
25th Jul 2025257 AMAQI
25th Jul 2025288 AMAQI
25th Jul 2025289 AMAQI
25th Jul 20252810 AMAQI
25th Jul 20253011 AMAQI
25th Jul 20252812 PMAQI
25th Jul 2025261 PMAQI
25th Jul 2025252 PMAQI
25th Jul 2025253 PMAQI
25th Jul 2025254 PMAQI
25th Jul 2025255 PMAQI
25th Jul 2025266 PMAQI
25th Jul 2025277 PMAQI
25th Jul 2025248 PMAQI
25th Jul 2025239 PMAQI
25th Jul 20252410 PMAQI
25th Jul 20252511 PMAQI
26th Jul 20252812 AMAQI
26th Jul 2025261 AMAQI
26th Jul 2025332 AMAQI
26th Jul 2025323 AMAQI
26th Jul 2025284 AMAQI
26°C21/32°C
26th Jul 2025305 AMAQI
26th Jul 2025346 AMAQI
26th Jul 2025297 AMAQI
26th Jul 2025278 AMAQI
26th Jul 2025249 AMAQI
26th Jul 20252410 AMAQI
26th Jul 20252411 AMAQI
26th Jul 20252212 PMAQI
26th Jul 2025261 PMAQI
26th Jul 2025282 PMAQI
26th Jul 2025263 PMAQI
26th Jul 2025264 PMAQI
26th Jul 2025285 PMAQI
26th Jul 2025266 PMAQI
26th Jul 2025257 PMAQI
26th Jul 2025288 PMAQI
26th Jul 2025289 PMAQI
26th Jul 20252710 PMAQI
26th Jul 20252811 PMAQI
27th Jul 20252712 AMAQI
27th Jul 2025261 AMAQI
27th Jul 2025322 AMAQI
27th Jul 2025253 AMAQI
27th Jul 2025254 AMAQI
24°C20/27°C
27th Jul 2025275 AMAQI
27th Jul 2025246 AMAQI
27th Jul 2025247 AMAQI
27th Jul 2025248 AMAQI
27th Jul 2025259 AMAQI
27th Jul 20252510 AMAQI
27th Jul 20252511 AMAQI
27th Jul 20252612 PMAQI
27th Jul 2025281 PMAQI
27th Jul 2025292 PMAQI
27th Jul 2025283 PMAQI
27th Jul 2025294 PMAQI
27th Jul 2025325 PMAQI
27th Jul 2025326 PMAQI
27th Jul 2025317 PMAQI
27th Jul 2025308 PMAQI
27th Jul 2025309 PMAQI
27th Jul 20252810 PMAQI
27th Jul 20252711 PMAQI
28th Jul 20252612 AMAQI
28th Jul 2025271 AMAQI
28th Jul 2025282 AMAQI
28th Jul 2025243 AMAQI
28th Jul 2025224 AMAQI
23°C18/27°C
28th Jul 2025225 AMAQI
28th Jul 2025246 AMAQI
28th Jul 2025237 AMAQI
28th Jul 2025228 AMAQI
28th Jul 2025259 AMAQI
28th Jul 20253010 AMAQI
28th Jul 20252611 AMAQI
28th Jul 20252612 PMAQI
28th Jul 2025231 PMAQI
28th Jul 2025232 PMAQI
28th Jul 2025233 PMAQI
28th Jul 2025244 PMAQI
28th Jul 2025245 PMAQI
28th Jul 2025246 PMAQI
28th Jul 2025257 PMAQI
28th Jul 2025258 PMAQI
28th Jul 2025259 PMAQI
28th Jul 20252510 PMAQI
28th Jul 20252511 PMAQI
29th Jul 20252712 AMAQI
29th Jul 2025271 AMAQI
29th Jul 2025222 AMAQI
29th Jul 2025213 AMAQI
29th Jul 2025224 AMAQI
23°C19/28°C
29th Jul 2025225 AMAQI
29th Jul 2025236 AMAQI
29th Jul 2025247 AMAQI
29th Jul 2025268 AMAQI
29th Jul 2025289 AMAQI
29th Jul 20252510 AMAQI
29th Jul 20252311 AMAQI
29th Jul 20252412 PMAQI
29th Jul 2025221 PMAQI
29th Jul 2025222 PMAQI
29th Jul 2025233 PMAQI
29th Jul 2025234 PMAQI
29th Jul 2025225 PMAQI
29th Jul 2025216 PMAQI
29th Jul 2025237 PMAQI
29th Jul 2025268 PMAQI
29th Jul 2025269 PMAQI
29th Jul 20252510 PMAQI
29th Jul 20252511 PMAQI
30th Jul 20252512 AMAQI
30th Jul 2025261 AMAQI
30th Jul 2025222 AMAQI
30th Jul 2025203 AMAQI
30th Jul 2025194 AMAQI
23°C17/29°C
30th Jul 2025205 AMAQI
30th Jul 2025226 AMAQI
30th Jul 2025237 AMAQI
30th Jul 2025248 AMAQI
30th Jul 2025269 AMAQI
30th Jul 20252510 AMAQI
30th Jul 20252411 AMAQI
30th Jul 20252312 PMAQI
30th Jul 2025241 PMAQI
30th Jul 2025232 PMAQI
30th Jul 2025223 PMAQI
30th Jul 2025224 PMAQI
30th Jul 2025235 PMAQI
30th Jul 2025236 PMAQI
30th Jul 2025237 PMAQI
30th Jul 2025238 PMAQI
30th Jul 2025269 PMAQI
30th Jul 20252610 PMAQI
30th Jul 20252611 PMAQI
31st Jul 20252612 AMAQI
31st Jul 2025261 AMAQI
31st Jul 2025262 AMAQI
31st Jul 2025263 AMAQI
31st Jul 2025224 AMAQI
23°C17/29°C
31st Jul 2025225 AMAQI
31st Jul 2025216 AMAQI
31st Jul 2025237 AMAQI
31st Jul 2025268 AMAQI
31st Jul 2025259 AMAQI
31st Jul 20252410 AMAQI
31st Jul 20252211 AMAQI
31st Jul 20252412 PMAQI
31st Jul 2025241 PMAQI
31st Jul 2025252 PMAQI
31st Jul 2025243 PMAQI
31st Jul 2025264 PMAQI
31st Jul 2025235 PMAQI
31st Jul 2025266 PMAQI
31st Jul 2025247 PMAQI
31st Jul 2025228 PMAQI
31st Jul 2025269 PMAQI
31st Jul 20252510 PMAQI
31st Jul 20252611 PMAQI
1st Aug 20252412 AMAQI
1st Aug 2025241 AMAQI
1st Aug 2025242 AMAQI
1st Aug 2025263 AMAQI
1st Aug 2025264 AMAQI
23°C18/28°C
1st Aug 2025305 AMAQI
1st Aug 2025296 AMAQI
1st Aug 2025327 AMAQI
1st Aug 2025348 AMAQI
1st Aug 2025349 AMAQI
1st Aug 20253210 AMAQI
1st Aug 20252911 AMAQI
1st Aug 20252912 PMAQI
1st Aug 2025311 PMAQI
1st Aug 2025322 PMAQI
1st Aug 2025313 PMAQI
1st Aug 2025334 PMAQI
1st Aug 2025335 PMAQI
1st Aug 2025386 PMAQI
1st Aug 2025347 PMAQI
1st Aug 2025378 PMAQI
1st Aug 2025349 PMAQI
1st Aug 20253210 PMAQI
1st Aug 20253011 PMAQI
2nd Aug 20253012 AMAQI
2nd Aug 2025301 AMAQI
2nd Aug 2025332 AMAQI
2nd Aug 2025353 AMAQI
2nd Aug 2025314 AMAQI
23°C19/27°C
2nd Aug 2025305 AMAQI
2nd Aug 2025366 AMAQI
2nd Aug 2025347 AMAQI
2nd Aug 2025328 AMAQI
2nd Aug 2025299 AMAQI
2nd Aug 20253210 AMAQI
2nd Aug 20252911 AMAQI
2nd Aug 20253112 PMAQI
2nd Aug 2025341 PMAQI
2nd Aug 2025342 PMAQI
2nd Aug 2025333 PMAQI
2nd Aug 2025354 PMAQI
2nd Aug 2025325 PMAQI
2nd Aug 2025336 PMAQI
2nd Aug 2025347 PMAQI
2nd Aug 2025328 PMAQI
2nd Aug 2025329 PMAQI
2nd Aug 20253310 PMAQI
2nd Aug 20253811 PMAQI
3rd Aug 20253412 AMAQI
3rd Aug 2025321 AMAQI
3rd Aug 2025312 AMAQI
3rd Aug 2025313 AMAQI
3rd Aug 2025304 AMAQI
23°C19/27°C
3rd Aug 2025345 AMAQI
3rd Aug 2025306 AMAQI
3rd Aug 2025347 AMAQI
3rd Aug 2025318 AMAQI
3rd Aug 2025359 AMAQI
3rd Aug 20253510 AMAQI
3rd Aug 20253111 AMAQI
3rd Aug 20253112 PMAQI
3rd Aug 2025361 PMAQI
3rd Aug 2025342 PMAQI
3rd Aug 2025343 PMAQI
3rd Aug 2025324 PMAQI
3rd Aug 2025345 PMAQI
3rd Aug 2025346 PMAQI
3rd Aug 2025337 PMAQI
3rd Aug 2025328 PMAQI
3rd Aug 2025329 PMAQI
3rd Aug 20253210 PMAQI
3rd Aug 20253211 PMAQI
4th Aug 20253212 AMAQI
--°C/°C
5 AM
12 PM
8 PM
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 8 PM
32AQI
16 hours / Day
480 hours / Month
Avg. Lowest Time
5 AM - 8 PM
32AQI
16 hours / Day
480 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 8 PM (Avg. 32), while the lowest AQI was between 5 AM to 8 PM (Avg. 32).
Night time
Avg. Highest Time
12 AM - 2 AM
33AQI
3 hours / Day
90 hours / Month
Avg. Lowest Time
3 AM - 4 AM
30AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 2 AM (Avg. 33), while the lowest AQI was between 3 AM to 4 AM (Avg. 30).
2025 Days Vs Air Quality
Siena, Tuscany, Italy
2025
74%
158
24%
52
2%
4
Total number of days with different AQI categories in last 215 days in 2025 (150 days remaining)
Good
158 DaysModerate
52 DaysPoor
4 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 74%
Health Risk Level:
Low
In 2025, 74% of 215 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.
Annual Air Quality Insights
Siena, Tuscany, Italy
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
90AQI
90AQI
2nd January 2025
69AQI
69AQI
3rd January 2025
76AQI
76AQI
4th January 2025
81AQI
81AQI
5th January 2025
82AQI
82AQI
6th January 2025
69AQI
69AQI
7th January 2025
63AQI
63AQI
8th January 2025
79AQI
79AQI
9th January 2025
60AQI
60AQI
10th January 2025
47AQI
47AQI
11th January 2025
45AQI
45AQI
12th January 2025
39AQI
39AQI
13th January 2025
41AQI
41AQI
14th January 2025
44AQI
44AQI
15th January 2025
48AQI
48AQI
16th January 2025
45AQI
45AQI
17th January 2025
48AQI
48AQI
18th January 2025
58AQI
58AQI
19th January 2025
54AQI
54AQI
20th January 2025
52AQI
52AQI
21st January 2025
54AQI
54AQI
22nd January 2025
60AQI
60AQI
23rd January 2025
59AQI
59AQI
24th January 2025
55AQI
55AQI
25th January 2025
55AQI
55AQI
26th January 2025
49AQI
49AQI
27th January 2025
48AQI
48AQI
28th January 2025
42AQI
42AQI
29th January 2025
38AQI
38AQI
30th January 2025
33AQI
33AQI
31st January 2025
38AQI
38AQI
1st February 2025
40AQI
40AQI
2nd February 2025
43AQI
43AQI
3rd February 2025
50AQI
50AQI
4th February 2025
49AQI
49AQI
5th February 2025
51AQI
51AQI
6th February 2025
53AQI
53AQI
7th February 2025
52AQI
52AQI
8th February 2025
50AQI
50AQI
9th February 2025
49AQI
49AQI
10th February 2025
57AQI
57AQI
11th February 2025
55AQI
55AQI
12th February 2025
56AQI
56AQI
13th February 2025
53AQI
53AQI
14th February 2025
50AQI
50AQI
15th February 2025
55AQI
55AQI
16th February 2025
54AQI
54AQI
17th February 2025
56AQI
56AQI
18th February 2025
58AQI
58AQI
19th February 2025
57AQI
57AQI
20th February 2025
56AQI
56AQI
21st February 2025
57AQI
57AQI
22nd February 2025
63AQI
63AQI
23rd February 2025
84AQI
84AQI
24th February 2025
116AQI
116AQI
25th February 2025
142AQI
142AQI
26th February 2025
146AQI
146AQI
27th February 2025
117AQI
117AQI
28th February 2025
66AQI
66AQI
1st March 2025
43AQI
43AQI
2nd March 2025
41AQI
41AQI
3rd March 2025
44AQI
44AQI
4th March 2025
47AQI
47AQI
5th March 2025
49AQI
49AQI
6th March 2025
51AQI
51AQI
7th March 2025
56AQI
56AQI
8th March 2025
54AQI
54AQI
9th March 2025
54AQI
54AQI
10th March 2025
53AQI
53AQI
11th March 2025
51AQI
51AQI
12th March 2025
43AQI
43AQI
13th March 2025
41AQI
41AQI
14th March 2025
46AQI
46AQI
15th March 2025
45AQI
45AQI
16th March 2025
39AQI
39AQI
17th March 2025
40AQI
40AQI
18th March 2025
39AQI
39AQI
19th March 2025
36AQI
36AQI
20th March 2025
42AQI
42AQI
21st March 2025
48AQI
48AQI
22nd March 2025
51AQI
51AQI
23rd March 2025
45AQI
45AQI
24th March 2025
37AQI
37AQI
25th March 2025
39AQI
39AQI
26th March 2025
40AQI
40AQI
27th March 2025
37AQI
37AQI
28th March 2025
38AQI
38AQI
29th March 2025
41AQI
41AQI
30th March 2025
31AQI
31AQI
31st March 2025
32AQI
32AQI
1st April 2025
31AQI
31AQI
2nd April 2025
32AQI
32AQI
3rd April 2025
36AQI
36AQI
4th April 2025
41AQI
41AQI
5th April 2025
39AQI
39AQI
6th April 2025
39AQI
39AQI
7th April 2025
38AQI
38AQI
8th April 2025
40AQI
40AQI
9th April 2025
39AQI
39AQI
10th April 2025
45AQI
45AQI
11th April 2025
46AQI
46AQI
12th April 2025
43AQI
43AQI
13th April 2025
44AQI
44AQI
14th April 2025
38AQI
38AQI
15th April 2025
34AQI
34AQI
16th April 2025
37AQI
37AQI
17th April 2025
33AQI
33AQI
18th April 2025
27AQI
27AQI
19th April 2025
25AQI
25AQI
20th April 2025
26AQI
26AQI
21st April 2025
24AQI
24AQI
22nd April 2025
32AQI
32AQI
23rd April 2025
34AQI
34AQI
24th April 2025
28AQI
28AQI
25th April 2025
28AQI
28AQI
26th April 2025
27AQI
27AQI
27th April 2025
25AQI
25AQI
28th April 2025
28AQI
28AQI
29th April 2025
33AQI
33AQI
30th April 2025
34AQI
34AQI
1st May 2025
38AQI
38AQI
2nd May 2025
42AQI
42AQI
3rd May 2025
43AQI
43AQI
4th May 2025
40AQI
40AQI
5th May 2025
31AQI
31AQI
6th May 2025
24AQI
24AQI
7th May 2025
25AQI
25AQI
8th May 2025
25AQI
25AQI
9th May 2025
26AQI
26AQI
10th May 2025
28AQI
28AQI
11th May 2025
29AQI
29AQI
12th May 2025
30AQI
30AQI
13th May 2025
30AQI
30AQI
14th May 2025
29AQI
29AQI
15th May 2025
32AQI
32AQI
16th May 2025
26AQI
26AQI
17th May 2025
25AQI
25AQI
18th May 2025
29AQI
29AQI
19th May 2025
30AQI
30AQI
20th May 2025
32AQI
32AQI
21st May 2025
34AQI
34AQI
22nd May 2025
27AQI
27AQI
23rd May 2025
24AQI
24AQI
24th May 2025
26AQI
26AQI
25th May 2025
27AQI
27AQI
26th May 2025
32AQI
32AQI
27th May 2025
34AQI
34AQI
28th May 2025
32AQI
32AQI
29th May 2025
26AQI
26AQI
30th May 2025
25AQI
25AQI
31st May 2025
28AQI
28AQI
1st June 2025
31AQI
31AQI
2nd June 2025
32AQI
32AQI
3rd June 2025
32AQI
32AQI
4th June 2025
34AQI
34AQI
5th June 2025
36AQI
36AQI
6th June 2025
37AQI
37AQI
7th June 2025
44AQI
44AQI
8th June 2025
45AQI
45AQI
9th June 2025
54AQI
54AQI
10th June 2025
58AQI
58AQI
11th June 2025
62AQI
62AQI
12th June 2025
63AQI
63AQI
13th June 2025
62AQI
62AQI
14th June 2025
59AQI
59AQI
15th June 2025
57AQI
57AQI
16th June 2025
54AQI
54AQI
17th June 2025
50AQI
50AQI
18th June 2025
47AQI
47AQI
19th June 2025
47AQI
47AQI
20th June 2025
50AQI
50AQI
21st June 2025
49AQI
49AQI
22nd June 2025
49AQI
49AQI
23rd June 2025
46AQI
46AQI
24th June 2025
48AQI
48AQI
25th June 2025
52AQI
52AQI
26th June 2025
53AQI
53AQI
27th June 2025
52AQI
52AQI
28th June 2025
49AQI
49AQI
29th June 2025
46AQI
46AQI
30th June 2025
43AQI
43AQI
1st July 2025
41AQI
41AQI
2nd July 2025
38AQI
38AQI
3rd July 2025
38AQI
38AQI
4th July 2025
43AQI
43AQI
5th July 2025
44AQI
44AQI
6th July 2025
46AQI
46AQI
7th July 2025
35AQI
35AQI
8th July 2025
28AQI
28AQI
9th July 2025
28AQI
28AQI
10th July 2025
30AQI
30AQI
11th July 2025
29AQI
29AQI
12th July 2025
33AQI
33AQI
13th July 2025
33AQI
33AQI
14th July 2025
34AQI
34AQI
15th July 2025
38AQI
38AQI
16th July 2025
40AQI
40AQI
17th July 2025
39AQI
39AQI
18th July 2025
34AQI
34AQI
19th July 2025
34AQI
34AQI
20th July 2025
40AQI
40AQI
21st July 2025
37AQI
37AQI
22nd July 2025
28AQI
28AQI
23rd July 2025
29AQI
29AQI
24th July 2025
25AQI
25AQI
25th July 2025
24AQI
24AQI
26th July 2025
27AQI
27AQI
27th July 2025
28AQI
28AQI
28th July 2025
24AQI
24AQI
29th July 2025
24AQI
24AQI
30th July 2025
23AQI
23AQI
31st July 2025
24AQI
24AQI
1st August 2025
31AQI
31AQI
2nd August 2025
33AQI
33AQI
56AQI
66AQI
44AQI
34AQI
30AQI
48AQI
33AQI
32AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202544AQI
14
17
7
17
4
24
7
30
31
19
11
31
2
158
52
4
Highest AQI recorded in
February66AQI
Lowest AQI recorded in
May30AQI
202441AQI
6
5
2
2
4
2
4
1
15
30
31
29
21
7
30
1
19
11
13
18
204
47
Highest AQI recorded in
February56AQI
Lowest AQI recorded in
May31AQI
202350AQI
1
8
4
1
9
4
1
Highest AQI recorded in
December52AQI
Lowest AQI recorded in
March31AQI
202246AQI
9
11
15
2
3
19
10
21
3
16
5
13
3
2
89
43
Highest AQI recorded in
March58AQI
Lowest AQI recorded in
April32AQI
202140AQI
12
8
10
10
13
9
21
23
18
3
18
4
16
7
18
5
19
1
24
11
10
203
57
Highest AQI recorded in
February50AQI
Lowest AQI recorded in
May25AQI
202039AQI
5
5
8
5
13
1
20
20
2
18
5
15
7
23
10
12
11
9
143
46
Highest AQI recorded in
November54AQI
Lowest AQI recorded in
June28AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
50AQILeast Polluted Year Recorded
2020(Avg.)
39AQISiena's annual 2025 AQI (44) shows an average percentage change of 2.1% (worsened AQI) compared to previous years: 2020 (39), 2021 (40), 2022 (46), 2023 (50), 2024 (41).
