Sion, Valais, Switzerland 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
Sion, Valais, Switzerland
2022
2023
2024
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
13th Aug 2025
63AQILowest AQI recorded on
30th Aug 2025
16AQISame Day Analysis (5th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 1st highest AQI at 35 of Good air quality on the same day.
Day & Night AQI Trend: 5th Aug - 6th Aug 2026
Sion, Valais, Switzerland
AQI
Day
Night
.
6 AM5th Aug 2026
9 PM
5 AM6th Aug 2026
Day time
Avg. Highest Time
6AM5th Aug
38AQI
Avg. Lowest Time
6PM5th Aug
31AQI
Night time
Avg. Highest Time
9PM5th Aug
33AQI
Avg. Lowest Time
1AM6th Aug
27AQI
In the last 24 hours,
Sion's AQI reached its highest point of 38 at 6 AM during the Day, while the lowest point, 27, was recorded at 1 AM during the Night between 5th Aug and 6th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Sion, Valais, Switzerland
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
Day
Night
8th Jul 202696 AMAQI
8th Jul 202667 AMAQI
8th Jul 202688 AMAQI
8th Jul 2026129 AMAQI
8th Jul 20261710 AMAQI
8th Jul 20261311 AMAQI
8th Jul 20261812 PMAQI
8th Jul 2026301 PMAQI
8th Jul 2026322 PMAQI
8th Jul 2026303 PMAQI
8th Jul 2026204 PMAQI
8th Jul 2026225 PMAQI
8th Jul 2026356 PMAQI
8th Jul 2026257 PMAQI
8th Jul 2026188 PMAQI
8th Jul 2026169 PMAQI
8th Jul 20261610 PMAQI
8th Jul 20261411 PMAQI
9th Jul 20261412 AMAQI
9th Jul 2026181 AMAQI
9th Jul 2026162 AMAQI
9th Jul 2026103 AMAQI
9th Jul 2026104 AMAQI
9th Jul 202685 AMAQI
17°C11/23°C
9th Jul 202676 AMAQI
9th Jul 202687 AMAQI
9th Jul 2026128 AMAQI
9th Jul 2026129 AMAQI
9th Jul 20261610 AMAQI
9th Jul 20262211 AMAQI
9th Jul 20262012 PMAQI
9th Jul 2026201 PMAQI
9th Jul 2026182 PMAQI
9th Jul 2026173 PMAQI
9th Jul 2026164 PMAQI
9th Jul 2026175 PMAQI
9th Jul 2026206 PMAQI
9th Jul 2026207 PMAQI
9th Jul 2026248 PMAQI
9th Jul 2026229 PMAQI
9th Jul 20262210 PMAQI
9th Jul 20262011 PMAQI
10th Jul 20262012 AMAQI
10th Jul 2026201 AMAQI
10th Jul 2026222 AMAQI
10th Jul 2026173 AMAQI
10th Jul 2026164 AMAQI
10th Jul 2026155 AMAQI
17°C11/25°C
10th Jul 2026146 AMAQI
10th Jul 2026127 AMAQI
10th Jul 2026178 AMAQI
10th Jul 2026129 AMAQI
10th Jul 20261810 AMAQI
10th Jul 20262211 AMAQI
10th Jul 20262512 PMAQI
10th Jul 2026321 PMAQI
10th Jul 2026352 PMAQI
10th Jul 2026303 PMAQI
10th Jul 2026324 PMAQI
10th Jul 2026305 PMAQI
10th Jul 2026306 PMAQI
10th Jul 2026297 PMAQI
10th Jul 2026238 PMAQI
10th Jul 2026239 PMAQI
10th Jul 20262210 PMAQI
10th Jul 20262211 PMAQI
11th Jul 20262212 AMAQI
11th Jul 2026251 AMAQI
11th Jul 2026762 AMAQI
11th Jul 2026753 AMAQI
11th Jul 2026794 AMAQI
11th Jul 2026745 AMAQI
17°C12/25°C
11th Jul 2026696 AMAQI
11th Jul 2026657 AMAQI
11th Jul 2026648 AMAQI
11th Jul 2026649 AMAQI
11th Jul 20266910 AMAQI
11th Jul 20266211 AMAQI
11th Jul 20266312 PMAQI
11th Jul 2026581 PMAQI
11th Jul 2026552 PMAQI
11th Jul 2026483 PMAQI
11th Jul 2026334 PMAQI
11th Jul 2026295 PMAQI
11th Jul 2026256 PMAQI
11th Jul 2026337 PMAQI
11th Jul 2026218 PMAQI
11th Jul 2026179 PMAQI
11th Jul 20261910 PMAQI
11th Jul 20262111 PMAQI
12th Jul 20262112 AMAQI
12th Jul 2026211 AMAQI
12th Jul 2026212 AMAQI
12th Jul 2026213 AMAQI
12th Jul 2026234 AMAQI
12th Jul 2026235 AMAQI
15°C11/22°C
12th Jul 2026256 AMAQI
12th Jul 2026257 AMAQI
12th Jul 2026278 AMAQI
12th Jul 2026259 AMAQI
12th Jul 20262710 AMAQI
12th Jul 20263111 AMAQI
12th Jul 20262912 PMAQI
12th Jul 2026251 PMAQI
12th Jul 2026272 PMAQI
12th Jul 2026213 PMAQI
12th Jul 2026214 PMAQI
12th Jul 2026215 PMAQI
12th Jul 2026196 PMAQI
12th Jul 2026197 PMAQI
12th Jul 2026218 PMAQI
12th Jul 2026239 PMAQI
12th Jul 20262310 PMAQI
12th Jul 20262311 PMAQI
13th Jul 20262312 AMAQI
13th Jul 2026251 AMAQI
13th Jul 2026252 AMAQI
13th Jul 2026253 AMAQI
13th Jul 2026254 AMAQI
13th Jul 2026255 AMAQI
17°C10/25°C
13th Jul 2026276 AMAQI
13th Jul 2026247 AMAQI
13th Jul 2026238 AMAQI
13th Jul 2026269 AMAQI
13th Jul 20263210 AMAQI
13th Jul 20263211 AMAQI
13th Jul 20263212 PMAQI
13th Jul 2026331 PMAQI
13th Jul 2026322 PMAQI
13th Jul 2026323 PMAQI
13th Jul 2026324 PMAQI
13th Jul 2026325 PMAQI
13th Jul 2026326 PMAQI
13th Jul 2026307 PMAQI
13th Jul 2026308 PMAQI
13th Jul 2026249 PMAQI
13th Jul 20263110 PMAQI
13th Jul 20263111 PMAQI
14th Jul 20263212 AMAQI
14th Jul 2026291 AMAQI
14th Jul 2026342 AMAQI
14th Jul 2026343 AMAQI
14th Jul 2026284 AMAQI
14th Jul 2026255 AMAQI
19°C13/26°C
14th Jul 2026256 AMAQI
14th Jul 2026517 AMAQI
14th Jul 2026528 AMAQI
14th Jul 2026489 AMAQI
14th Jul 20264810 AMAQI
14th Jul 20264411 AMAQI
14th Jul 20266712 PMAQI
14th Jul 2026651 PMAQI
14th Jul 2026692 PMAQI
14th Jul 2026653 PMAQI
14th Jul 2026564 PMAQI
14th Jul 2026515 PMAQI
14th Jul 2026466 PMAQI
14th Jul 2026447 PMAQI
14th Jul 2026448 PMAQI
14th Jul 2026449 PMAQI
14th Jul 20264610 PMAQI
14th Jul 20264411 PMAQI
15th Jul 20265012 AMAQI
15th Jul 2026441 AMAQI
15th Jul 2026502 AMAQI
15th Jul 2026463 AMAQI
15th Jul 2026444 AMAQI
15th Jul 2026445 AMAQI
18°C12/25°C
15th Jul 2026446 AMAQI
15th Jul 2026507 AMAQI
15th Jul 2026468 AMAQI
15th Jul 2026389 AMAQI
15th Jul 20263210 AMAQI
15th Jul 20263211 AMAQI
15th Jul 20262612 PMAQI
15th Jul 2026281 PMAQI
15th Jul 2026262 PMAQI
15th Jul 2026323 PMAQI
15th Jul 2026304 PMAQI
15th Jul 2026265 PMAQI
15th Jul 2026256 PMAQI
15th Jul 2026287 PMAQI
15th Jul 2026278 PMAQI
15th Jul 2026299 PMAQI
15th Jul 20262010 PMAQI
15th Jul 20261011 PMAQI
16th Jul 20262012 AMAQI
16th Jul 2026291 AMAQI
16th Jul 2026272 AMAQI
16th Jul 2026213 AMAQI
16th Jul 2026254 AMAQI
16th Jul 2026215 AMAQI
15°C12/22°C
16th Jul 2026236 AMAQI
16th Jul 2026217 AMAQI
16th Jul 2026238 AMAQI
16th Jul 2026279 AMAQI
16th Jul 20262910 AMAQI
16th Jul 20263111 AMAQI
16th Jul 20263312 PMAQI
16th Jul 2026331 PMAQI
16th Jul 2026332 PMAQI
16th Jul 2026313 PMAQI
16th Jul 2026284 PMAQI
16th Jul 2026245 PMAQI
16th Jul 2026276 PMAQI
16th Jul 2026267 PMAQI
16th Jul 2026278 PMAQI
16th Jul 2026189 PMAQI
16th Jul 20261810 PMAQI
16th Jul 20262511 PMAQI
17th Jul 20261612 AMAQI
17th Jul 2026131 AMAQI
17th Jul 202692 AMAQI
17th Jul 2026163 AMAQI
17th Jul 2026144 AMAQI
17th Jul 2026125 AMAQI
18°C11/26°C
17th Jul 2026126 AMAQI
17th Jul 2026127 AMAQI
17th Jul 2026128 AMAQI
17th Jul 2026129 AMAQI
17th Jul 20261210 AMAQI
17th Jul 20262211 AMAQI
17th Jul 20264212 PMAQI
17th Jul 2026401 PMAQI
17th Jul 2026322 PMAQI
17th Jul 2026343 PMAQI
17th Jul 2026334 PMAQI
17th Jul 2026335 PMAQI
17th Jul 2026296 PMAQI
17th Jul 2026347 PMAQI
17th Jul 2026428 PMAQI
17th Jul 2026429 PMAQI
17th Jul 20264010 PMAQI
17th Jul 20264011 PMAQI
18th Jul 20264012 AMAQI
18th Jul 2026401 AMAQI
18th Jul 2026302 AMAQI
18th Jul 2026233 AMAQI
18th Jul 2026214 AMAQI
18th Jul 2026215 AMAQI
16°C11/23°C
18th Jul 2026256 AMAQI
18th Jul 2026257 AMAQI
18th Jul 2026238 AMAQI
18th Jul 2026239 AMAQI
18th Jul 20262710 AMAQI
18th Jul 20262911 AMAQI
18th Jul 20262912 PMAQI
18th Jul 2026311 PMAQI
18th Jul 2026292 PMAQI
18th Jul 2026293 PMAQI
18th Jul 2026254 PMAQI
18th Jul 2026275 PMAQI
18th Jul 2026276 PMAQI
18th Jul 2026257 PMAQI
18th Jul 2026258 PMAQI
18th Jul 2026279 PMAQI
18th Jul 20262510 PMAQI
18th Jul 20262511 PMAQI
19th Jul 20262712 AMAQI
19th Jul 2026251 AMAQI
19th Jul 2026252 AMAQI
19th Jul 2026253 AMAQI
19th Jul 2026254 AMAQI
19th Jul 2026255 AMAQI
15°C10/20°C
19th Jul 2026256 AMAQI
19th Jul 2026257 AMAQI
19th Jul 2026238 AMAQI
19th Jul 2026219 AMAQI
19th Jul 20262310 AMAQI
19th Jul 20262511 AMAQI
19th Jul 20262312 PMAQI
19th Jul 2026251 PMAQI
19th Jul 2026252 PMAQI
19th Jul 2026213 PMAQI
19th Jul 2026214 PMAQI
19th Jul 2026235 PMAQI
19th Jul 2026216 PMAQI
19th Jul 2026217 PMAQI
19th Jul 2026238 PMAQI
19th Jul 2026259 PMAQI
19th Jul 20262510 PMAQI
19th Jul 20262511 PMAQI
20th Jul 20262712 AMAQI
20th Jul 2026271 AMAQI
20th Jul 2026292 AMAQI
20th Jul 2026273 AMAQI
20th Jul 2026294 AMAQI
20th Jul 2026295 AMAQI
14°C9/20°C
20th Jul 2026296 AMAQI
20th Jul 2026337 AMAQI
20th Jul 2026338 AMAQI
20th Jul 2026369 AMAQI
20th Jul 20264010 AMAQI
20th Jul 20264011 AMAQI
20th Jul 20264012 PMAQI
20th Jul 2026441 PMAQI
20th Jul 2026442 PMAQI
20th Jul 2026403 PMAQI
20th Jul 2026424 PMAQI
20th Jul 2026465 PMAQI
20th Jul 2026406 PMAQI
20th Jul 2026367 PMAQI
20th Jul 2026388 PMAQI
20th Jul 2026339 PMAQI
20th Jul 20263610 PMAQI
20th Jul 20263611 PMAQI
21st Jul 20263812 AMAQI
21st Jul 2026361 AMAQI
21st Jul 2026332 AMAQI
21st Jul 2026333 AMAQI
21st Jul 2026334 AMAQI
14°C8/21°C
21st Jul 2026366 AMAQI
21st Jul 2026337 AMAQI
21st Jul 2026368 AMAQI
21st Jul 2026389 AMAQI
21st Jul 20263310 AMAQI
21st Jul 20263311 AMAQI
21st Jul 20263812 PMAQI
21st Jul 2026421 PMAQI
21st Jul 2026422 PMAQI
21st Jul 2026363 PMAQI
21st Jul 2026314 PMAQI
21st Jul 2026315 PMAQI
21st Jul 2026296 PMAQI
21st Jul 2026297 PMAQI
21st Jul 2026298 PMAQI
21st Jul 2026319 PMAQI
21st Jul 20262910 PMAQI
21st Jul 20262511 PMAQI
22nd Jul 20262512 AMAQI
22nd Jul 2026251 AMAQI
22nd Jul 2026252 AMAQI
22nd Jul 2026213 AMAQI
22nd Jul 2026234 AMAQI
22nd Jul 2026235 AMAQI
13°C8/18°C
22nd Jul 2026216 AMAQI
22nd Jul 2026217 AMAQI
22nd Jul 2026238 AMAQI
22nd Jul 2026239 AMAQI
22nd Jul 20262310 AMAQI
22nd Jul 20262511 AMAQI
22nd Jul 20262312 PMAQI
22nd Jul 2026251 PMAQI
22nd Jul 2026252 PMAQI
22nd Jul 2026243 PMAQI
22nd Jul 2026224 PMAQI
22nd Jul 2026215 PMAQI
22nd Jul 2026216 PMAQI
22nd Jul 2026387 PMAQI
22nd Jul 2026218 PMAQI
22nd Jul 2026219 PMAQI
22nd Jul 20262110 PMAQI
22nd Jul 20262111 PMAQI
23rd Jul 20262112 AMAQI
23rd Jul 2026291 AMAQI
23rd Jul 2026312 AMAQI
23rd Jul 2026383 AMAQI
23rd Jul 2026344 AMAQI
23rd Jul 2026255 AMAQI
13°C6/20°C
23rd Jul 2026346 AMAQI
23rd Jul 2026317 AMAQI
23rd Jul 2026338 AMAQI
23rd Jul 2026429 AMAQI
23rd Jul 20263210 AMAQI
23rd Jul 20264211 AMAQI
23rd Jul 20264212 PMAQI
23rd Jul 2026211 PMAQI
23rd Jul 2026232 PMAQI
23rd Jul 2026213 PMAQI
23rd Jul 2026214 PMAQI
23rd Jul 2026215 PMAQI
23rd Jul 2026216 PMAQI
23rd Jul 2026217 PMAQI
23rd Jul 2026348 PMAQI
23rd Jul 2026389 PMAQI
23rd Jul 20263110 PMAQI
23rd Jul 20262911 PMAQI
24th Jul 20262712 AMAQI
24th Jul 2026311 AMAQI
24th Jul 2026212 AMAQI
24th Jul 2026213 AMAQI
24th Jul 2026214 AMAQI
24th Jul 2026215 AMAQI
13°C7/19°C
24th Jul 2026236 AMAQI
24th Jul 2026237 AMAQI
24th Jul 2026258 AMAQI
24th Jul 2026279 AMAQI
24th Jul 20264310 AMAQI
24th Jul 20263311 AMAQI
24th Jul 20262912 PMAQI
24th Jul 2026291 PMAQI
24th Jul 2026292 PMAQI
24th Jul 2026253 PMAQI
24th Jul 2026274 PMAQI
24th Jul 2026295 PMAQI
24th Jul 2026256 PMAQI
24th Jul 2026257 PMAQI
24th Jul 2026278 PMAQI
24th Jul 2026279 PMAQI
24th Jul 20262510 PMAQI
24th Jul 20262511 PMAQI
25th Jul 20262512 AMAQI
25th Jul 2026231 AMAQI
25th Jul 2026252 AMAQI
25th Jul 2026233 AMAQI
25th Jul 2026234 AMAQI
25th Jul 2026235 AMAQI
14°C7/22°C
25th Jul 2026216 AMAQI
25th Jul 2026217 AMAQI
25th Jul 2026218 AMAQI
25th Jul 2026239 AMAQI
25th Jul 20262510 AMAQI
25th Jul 20262511 AMAQI
25th Jul 20262512 PMAQI
25th Jul 2026251 PMAQI
25th Jul 2026272 PMAQI
25th Jul 2026253 PMAQI
25th Jul 2026254 PMAQI
25th Jul 2026255 PMAQI
25th Jul 2026276 PMAQI
25th Jul 2026367 PMAQI
25th Jul 2026348 PMAQI
25th Jul 2026299 PMAQI
25th Jul 20262910 PMAQI
25th Jul 20262711 PMAQI
26th Jul 20262912 AMAQI
26th Jul 2026271 AMAQI
26th Jul 2026272 AMAQI
26th Jul 2026293 AMAQI
26th Jul 2026254 AMAQI
26th Jul 2026275 AMAQI
15°C10/23°C
26th Jul 2026276 AMAQI
26th Jul 2026297 AMAQI
26th Jul 2026298 AMAQI
26th Jul 2026259 AMAQI
26th Jul 20262510 AMAQI
26th Jul 20262511 AMAQI
26th Jul 20262312 PMAQI
26th Jul 2026231 PMAQI
26th Jul 2026212 PMAQI
26th Jul 2026213 PMAQI
26th Jul 2026214 PMAQI
26th Jul 2026215 PMAQI
26th Jul 2026216 PMAQI
26th Jul 2026217 PMAQI
26th Jul 2026218 PMAQI
26th Jul 2026219 PMAQI
26th Jul 20262510 PMAQI
26th Jul 20262511 PMAQI
27th Jul 20262512 AMAQI
27th Jul 2026311 AMAQI
27th Jul 2026362 AMAQI
27th Jul 2026333 AMAQI
27th Jul 2026404 AMAQI
27th Jul 2026385 AMAQI
11°C9/14°C
27th Jul 2026426 AMAQI
27th Jul 2026447 AMAQI
27th Jul 2026468 AMAQI
27th Jul 2026469 AMAQI
27th Jul 20265010 AMAQI
27th Jul 20264611 AMAQI
27th Jul 20264412 PMAQI
27th Jul 2026461 PMAQI
27th Jul 2026402 PMAQI
27th Jul 2026383 PMAQI
27th Jul 2026334 PMAQI
27th Jul 2026335 PMAQI
27th Jul 2026316 PMAQI
27th Jul 2026297 PMAQI
27th Jul 2026298 PMAQI
27th Jul 2026279 PMAQI
27th Jul 20262510 PMAQI
27th Jul 20262311 PMAQI
28th Jul 20262112 AMAQI
28th Jul 2026211 AMAQI
28th Jul 2026342 AMAQI
28th Jul 2026333 AMAQI
28th Jul 2026334 AMAQI
28th Jul 2026365 AMAQI
13°C7/20°C
28th Jul 2026386 AMAQI
28th Jul 2026407 AMAQI
28th Jul 2026388 AMAQI
28th Jul 2026299 AMAQI
28th Jul 20262310 AMAQI
28th Jul 20262411 AMAQI
28th Jul 20262312 PMAQI
28th Jul 2026211 PMAQI
28th Jul 2026362 PMAQI
28th Jul 2026213 PMAQI
28th Jul 2026214 PMAQI
28th Jul 2026215 PMAQI
28th Jul 2026216 PMAQI
28th Jul 2026217 PMAQI
28th Jul 2026238 PMAQI
28th Jul 2026239 PMAQI
28th Jul 20262310 PMAQI
28th Jul 20262311 PMAQI
29th Jul 20262512 AMAQI
29th Jul 2026251 AMAQI
29th Jul 2026252 AMAQI
29th Jul 2026253 AMAQI
29th Jul 2026254 AMAQI
29th Jul 2026275 AMAQI
17°C10/25°C
29th Jul 2026276 AMAQI
29th Jul 2026277 AMAQI
29th Jul 2026298 AMAQI
29th Jul 2026349 AMAQI
29th Jul 20263810 AMAQI
29th Jul 20264011 AMAQI
29th Jul 20264412 PMAQI
29th Jul 2026421 PMAQI
29th Jul 2026442 PMAQI
29th Jul 2026423 PMAQI
29th Jul 2026404 PMAQI
29th Jul 2026425 PMAQI
29th Jul 2026446 PMAQI
29th Jul 2026447 PMAQI
29th Jul 2026428 PMAQI
29th Jul 2026449 PMAQI
29th Jul 20264410 PMAQI
29th Jul 20264411 PMAQI
30th Jul 20264412 AMAQI
30th Jul 2026461 AMAQI
30th Jul 2026482 AMAQI
30th Jul 2026463 AMAQI
30th Jul 2026464 AMAQI
30th Jul 2026465 AMAQI
19°C13/26°C
30th Jul 2026466 AMAQI
30th Jul 2026507 AMAQI
30th Jul 2026538 AMAQI
30th Jul 2026539 AMAQI
30th Jul 20265210 AMAQI
30th Jul 20265511 AMAQI
30th Jul 20265812 PMAQI
30th Jul 2026581 PMAQI
30th Jul 2026542 PMAQI
30th Jul 2026423 PMAQI
30th Jul 2026464 PMAQI
30th Jul 2026555 PMAQI
30th Jul 2026646 PMAQI
30th Jul 2026627 PMAQI
30th Jul 2026628 PMAQI
30th Jul 2026659 PMAQI
30th Jul 20266510 PMAQI
30th Jul 20266411 PMAQI
31st Jul 20266412 AMAQI
31st Jul 2026621 AMAQI
31st Jul 2026622 AMAQI
31st Jul 2026603 AMAQI
31st Jul 2026604 AMAQI
31st Jul 2026645 AMAQI
19°C13/27°C
31st Jul 2026636 AMAQI
31st Jul 2026627 AMAQI
31st Jul 2026628 AMAQI
31st Jul 2026649 AMAQI
31st Jul 20266510 AMAQI
31st Jul 20266611 AMAQI
31st Jul 20266712 PMAQI
31st Jul 2026681 PMAQI
31st Jul 2026712 PMAQI
31st Jul 2026743 PMAQI
31st Jul 2026744 PMAQI
31st Jul 2026665 PMAQI
31st Jul 2026686 PMAQI
31st Jul 2026667 PMAQI
31st Jul 2026658 PMAQI
31st Jul 2026609 PMAQI
31st Jul 20266010 PMAQI
31st Jul 20266211 PMAQI
1st Aug 20265712 AMAQI
1st Aug 2026531 AMAQI
1st Aug 2026542 AMAQI
1st Aug 2026523 AMAQI
1st Aug 2026334 AMAQI
1st Aug 2026365 AMAQI
18°C13/25°C
1st Aug 2026346 AMAQI
1st Aug 2026297 AMAQI
1st Aug 2026258 AMAQI
1st Aug 2026239 AMAQI
1st Aug 20262110 AMAQI
1st Aug 20262511 AMAQI
1st Aug 20262312 PMAQI
1st Aug 2026251 PMAQI
1st Aug 2026272 PMAQI
1st Aug 2026323 PMAQI
1st Aug 2026384 PMAQI
1st Aug 2026425 PMAQI
1st Aug 2026466 PMAQI
1st Aug 2026427 PMAQI
1st Aug 2026408 PMAQI
1st Aug 2026389 PMAQI
1st Aug 20263610 PMAQI
1st Aug 20263811 PMAQI
2nd Aug 20264012 AMAQI
2nd Aug 2026381 AMAQI
2nd Aug 2026382 AMAQI
2nd Aug 2026423 AMAQI
2nd Aug 2026404 AMAQI
2nd Aug 2026425 AMAQI
17°C12/22°C
2nd Aug 2026426 AMAQI
2nd Aug 2026387 AMAQI
2nd Aug 2026428 AMAQI
2nd Aug 2026389 AMAQI
2nd Aug 20264010 AMAQI
2nd Aug 20264211 AMAQI
2nd Aug 20264412 PMAQI
2nd Aug 2026421 PMAQI
2nd Aug 2026382 PMAQI
2nd Aug 2026403 PMAQI
2nd Aug 2026384 PMAQI
2nd Aug 2026405 PMAQI
2nd Aug 2026406 PMAQI
2nd Aug 2026407 PMAQI
2nd Aug 2026408 PMAQI
2nd Aug 2026369 PMAQI
2nd Aug 20263610 PMAQI
2nd Aug 20263611 PMAQI
3rd Aug 20263612 AMAQI
3rd Aug 2026361 AMAQI
3rd Aug 2026332 AMAQI
3rd Aug 2026363 AMAQI
3rd Aug 2026314 AMAQI
3rd Aug 2026365 AMAQI
18°C12/25°C
3rd Aug 2026316 AMAQI
3rd Aug 2026317 AMAQI
3rd Aug 2026338 AMAQI
3rd Aug 2026389 AMAQI
3rd Aug 20263310 AMAQI
3rd Aug 20263611 AMAQI
3rd Aug 20263612 PMAQI
3rd Aug 2026381 PMAQI
3rd Aug 2026362 PMAQI
3rd Aug 2026363 PMAQI
3rd Aug 2026334 PMAQI
3rd Aug 2026365 PMAQI
3rd Aug 2026386 PMAQI
3rd Aug 2026387 PMAQI
3rd Aug 2026368 PMAQI
3rd Aug 2026389 PMAQI
3rd Aug 20263610 PMAQI
3rd Aug 20263611 PMAQI
4th Aug 20263612 AMAQI
4th Aug 2026361 AMAQI
4th Aug 2026332 AMAQI
4th Aug 2026363 AMAQI
4th Aug 2026364 AMAQI
4th Aug 2026335 AMAQI
17°C13/26°C
4th Aug 2026336 AMAQI
4th Aug 2026337 AMAQI
4th Aug 2026368 AMAQI
4th Aug 2026369 AMAQI
4th Aug 20263810 AMAQI
4th Aug 20264211 AMAQI
4th Aug 20264212 PMAQI
4th Aug 2026421 PMAQI
4th Aug 2026462 PMAQI
4th Aug 2026443 PMAQI
4th Aug 2026504 PMAQI
4th Aug 2026465 PMAQI
4th Aug 2026466 PMAQI
4th Aug 2026427 PMAQI
4th Aug 2026468 PMAQI
4th Aug 2026449 PMAQI
4th Aug 20264210 PMAQI
4th Aug 20264011 PMAQI
5th Aug 20264012 AMAQI
5th Aug 2026381 AMAQI
5th Aug 2026382 AMAQI
5th Aug 2026383 AMAQI
5th Aug 2026364 AMAQI
5th Aug 2026385 AMAQI
16°C12/25°C
5th Aug 2026386 AMAQI
5th Aug 2026367 AMAQI
5th Aug 2026368 AMAQI
5th Aug 2026369 AMAQI
5th Aug 20263610 AMAQI
5th Aug 20263611 AMAQI
5th Aug 20263812 PMAQI
5th Aug 2026361 PMAQI
5th Aug 2026362 PMAQI
5th Aug 2026313 PMAQI
5th Aug 2026314 PMAQI
5th Aug 2026315 PMAQI
5th Aug 2026316 PMAQI
5th Aug 2026337 PMAQI
5th Aug 2026368 PMAQI
5th Aug 2026339 PMAQI
5th Aug 20263310 PMAQI
5th Aug 20262911 PMAQI
6th Aug 20262912 AMAQI
6th Aug 2026271 AMAQI
6th Aug 2026292 AMAQI
6th Aug 2026313 AMAQI
6th Aug 2026294 AMAQI
6th Aug 2026295 AMAQI
16°C12/23°C
6th Aug 2026316 AMAQI
6 AM6th Aug 2026277 AMAQI
6th Aug 2026298 AMAQI
6th Aug 2026299 AMAQI
6th Aug 20262910 AMAQI
6th Aug 20263011 AMAQI
6th Aug 20263312 PMAQI
6th Aug 2026311 PMAQI
1 PM6th Aug 2026312 PMAQI
6th Aug 2026253 PMAQI
6th Aug 2026274 PMAQI
6th Aug 2026255 PMAQI
6th Aug 2026256 PMAQI
6th Aug 2026257 PMAQI
6th Aug 2026258 PMAQI
6th Aug 2026239 PMAQI
9 PM6th Aug 20262510 PMAQI
6th Aug 20262111 PMAQI
1 AM
5 AM
15°C12/20°C
Day time
Avg. Highest Time
12 PM - 2 PM
36AQI
3 hours / Day
90 hours / Month
Avg. Lowest Time
6 AM - 7 AM
31AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 PM to 2 PM (Avg. 36), while the lowest AQI was between 6 AM to 7 AM (Avg. 31).
Night time
Avg. Highest Time
2 AM
32AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
12 AM - 1 AM
30AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 2 AM to 2 AM (Avg. 32), while the lowest AQI was between 12 AM to 1 AM (Avg. 30).
2026 Days Vs Air Quality
Sion, Valais, Switzerland
2026
91%
195
9%
19
Total number of days with different AQI categories in last 218 days in 2026 (147 days remaining)
Good
195 DaysModerate
19 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 91%
Health Risk Level:
Very Low
In 2026, 91% of 218 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
Sion, Valais, Switzerland
AQI levels in 2026
AQI (US)
PM₂.₅
PM₁₀
CO
SO₂
NO₂
O₃
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
1st January 2026
71AQI (US)
71AQI (US)
2nd January 2026
55AQI (US)
55AQI (US)
3rd January 2026
26AQI (US)
26AQI (US)
4th January 2026
40AQI (US)
40AQI (US)
5th January 2026
61AQI (US)
61AQI (US)
6th January 2026
70AQI (US)
70AQI (US)
7th January 2026
50AQI (US)
50AQI (US)
8th January 2026
43AQI (US)
43AQI (US)
9th January 2026
42AQI (US)
42AQI (US)
10th January 2026
16AQI (US)
16AQI (US)
11th January 2026
27AQI (US)
27AQI (US)
12th January 2026
36AQI (US)
36AQI (US)
13th January 2026
30AQI (US)
30AQI (US)
14th January 2026
30AQI (US)
30AQI (US)
15th January 2026
41AQI (US)
41AQI (US)
16th January 2026
39AQI (US)
39AQI (US)
17th January 2026
54AQI (US)
54AQI (US)
18th January 2026
42AQI (US)
42AQI (US)
19th January 2026
38AQI (US)
38AQI (US)
20th January 2026
42AQI (US)
42AQI (US)
21st January 2026
49AQI (US)
49AQI (US)
22nd January 2026
66AQI (US)
66AQI (US)
23rd January 2026
78AQI (US)
78AQI (US)
24th January 2026
40AQI (US)
40AQI (US)
25th January 2026
56AQI (US)
56AQI (US)
26th January 2026
46AQI (US)
46AQI (US)
27th January 2026
44AQI (US)
44AQI (US)
28th January 2026
63AQI (US)
63AQI (US)
29th January 2026
54AQI (US)
54AQI (US)
30th January 2026
35AQI (US)
35AQI (US)
31st January 2026
38AQI (US)
38AQI (US)
1st February 2026
51AQI (US)
51AQI (US)
2nd February 2026
24AQI (US)
24AQI (US)
3rd February 2026
29AQI (US)
29AQI (US)
4th February 2026
44AQI (US)
44AQI (US)
5th February 2026
43AQI (US)
43AQI (US)
6th February 2026
25AQI (US)
25AQI (US)
7th February 2026
26AQI (US)
26AQI (US)
8th February 2026
41AQI (US)
41AQI (US)
9th February 2026
58AQI (US)
58AQI (US)
10th February 2026
24AQI (US)
24AQI (US)
11th February 2026
24AQI (US)
24AQI (US)
12th February 2026
27AQI (US)
27AQI (US)
13th February 2026
21AQI (US)
21AQI (US)
14th February 2026
31AQI (US)
31AQI (US)
15th February 2026
14AQI (US)
14AQI (US)
16th February 2026
33AQI (US)
33AQI (US)
17th February 2026
32AQI (US)
32AQI (US)
18th February 2026
25AQI (US)
25AQI (US)
19th February 2026
22AQI (US)
22AQI (US)
20th February 2026
34AQI (US)
34AQI (US)
21st February 2026
30AQI (US)
30AQI (US)
22nd February 2026
26AQI (US)
26AQI (US)
23rd February 2026
26AQI (US)
26AQI (US)
24th February 2026
17AQI (US)
17AQI (US)
25th February 2026
27AQI (US)
27AQI (US)
26th February 2026
29AQI (US)
29AQI (US)
27th February 2026
19AQI (US)
19AQI (US)
28th February 2026
24AQI (US)
24AQI (US)
1st March 2026
24AQI (US)
24AQI (US)
2nd March 2026
30AQI (US)
30AQI (US)
3rd March 2026
34AQI (US)
34AQI (US)
4th March 2026
41AQI (US)
41AQI (US)
5th March 2026
52AQI (US)
52AQI (US)
6th March 2026
70AQI (US)
70AQI (US)
7th March 2026
74AQI (US)
74AQI (US)
8th March 2026
58AQI (US)
58AQI (US)
9th March 2026
46AQI (US)
46AQI (US)
10th March 2026
46AQI (US)
46AQI (US)
11th March 2026
30AQI (US)
30AQI (US)
12th March 2026
12AQI (US)
12AQI (US)
13th March 2026
24AQI (US)
24AQI (US)
14th March 2026
22AQI (US)
22AQI (US)
15th March 2026
16AQI (US)
16AQI (US)
16th March 2026
28AQI (US)
28AQI (US)
17th March 2026
14AQI (US)
14AQI (US)
18th March 2026
34AQI (US)
34AQI (US)
19th March 2026
43AQI (US)
43AQI (US)
20th March 2026
44AQI (US)
44AQI (US)
21st March 2026
50AQI (US)
50AQI (US)
22nd March 2026
28AQI (US)
28AQI (US)
23rd March 2026
37AQI (US)
37AQI (US)
24th March 2026
38AQI (US)
38AQI (US)
25th March 2026
23AQI (US)
23AQI (US)
26th March 2026
13AQI (US)
13AQI (US)
27th March 2026
15AQI (US)
15AQI (US)
28th March 2026
27AQI (US)
27AQI (US)
29th March 2026
12AQI (US)
12AQI (US)
30th March 2026
20AQI (US)
20AQI (US)
31st March 2026
22AQI (US)
22AQI (US)
1st April 2026
23AQI (US)
23AQI (US)
2nd April 2026
26AQI (US)
26AQI (US)
3rd April 2026
23AQI (US)
23AQI (US)
4th April 2026
21AQI (US)
21AQI (US)
5th April 2026
21AQI (US)
21AQI (US)
6th April 2026
13AQI (US)
13AQI (US)
7th April 2026
14AQI (US)
14AQI (US)
8th April 2026
20AQI (US)
20AQI (US)
9th April 2026
20AQI (US)
20AQI (US)
10th April 2026
14AQI (US)
14AQI (US)
11th April 2026
23AQI (US)
23AQI (US)
12th April 2026
25AQI (US)
25AQI (US)
13th April 2026
14AQI (US)
14AQI (US)
14th April 2026
11AQI (US)
11AQI (US)
15th April 2026
26AQI (US)
26AQI (US)
16th April 2026
34AQI (US)
34AQI (US)
17th April 2026
18th April 2026
19AQI (US)
19AQI (US)
19th April 2026
18AQI (US)
18AQI (US)
20th April 2026
16AQI (US)
16AQI (US)
21st April 2026
16AQI (US)
16AQI (US)
22nd April 2026
23rd April 2026
22AQI (US)
22AQI (US)
24th April 2026
21AQI (US)
21AQI (US)
25th April 2026
14AQI (US)
14AQI (US)
26th April 2026
17AQI (US)
17AQI (US)
27th April 2026
14AQI (US)
14AQI (US)
28th April 2026
23AQI (US)
23AQI (US)
29th April 2026
17AQI (US)
17AQI (US)
30th April 2026
21AQI (US)
21AQI (US)
1st May 2026
25AQI (US)
25AQI (US)
2nd May 2026
19AQI (US)
19AQI (US)
3rd May 2026
18AQI (US)
18AQI (US)
4th May 2026
14AQI (US)
14AQI (US)
5th May 2026
16AQI (US)
16AQI (US)
6th May 2026
18AQI (US)
18AQI (US)
7th May 2026
18AQI (US)
18AQI (US)
8th May 2026
22AQI (US)
22AQI (US)
9th May 2026
10th May 2026
27AQI (US)
27AQI (US)
11th May 2026
24AQI (US)
24AQI (US)
12th May 2026
18AQI (US)
18AQI (US)
13th May 2026
24AQI (US)
24AQI (US)
14th May 2026
17AQI (US)
17AQI (US)
15th May 2026
27AQI (US)
27AQI (US)
16th May 2026
36AQI (US)
36AQI (US)
17th May 2026
36AQI (US)
36AQI (US)
18th May 2026
34AQI (US)
34AQI (US)
19th May 2026
37AQI (US)
37AQI (US)
20th May 2026
37AQI (US)
37AQI (US)
21st May 2026
36AQI (US)
36AQI (US)
22nd May 2026
37AQI (US)
37AQI (US)
23rd May 2026
40AQI (US)
40AQI (US)
24th May 2026
52AQI (US)
52AQI (US)
25th May 2026
41AQI (US)
41AQI (US)
26th May 2026
34AQI (US)
34AQI (US)
27th May 2026
26AQI (US)
26AQI (US)
28th May 2026
25AQI (US)
25AQI (US)
29th May 2026
21AQI (US)
21AQI (US)
30th May 2026
19AQI (US)
19AQI (US)
31st May 2026
22AQI (US)
22AQI (US)
1st June 2026
27AQI (US)
27AQI (US)
2nd June 2026
19AQI (US)
19AQI (US)
3rd June 2026
10AQI (US)
10AQI (US)
4th June 2026
11AQI (US)
11AQI (US)
5th June 2026
11AQI (US)
11AQI (US)
6th June 2026
21AQI (US)
21AQI (US)
7th June 2026
16AQI (US)
16AQI (US)
8th June 2026
20AQI (US)
20AQI (US)
9th June 2026
12AQI (US)
12AQI (US)
10th June 2026
10AQI (US)
10AQI (US)
11th June 2026
12AQI (US)
12AQI (US)
12th June 2026
21AQI (US)
21AQI (US)
13th June 2026
20AQI (US)
20AQI (US)
14th June 2026
20AQI (US)
20AQI (US)
15th June 2026
22AQI (US)
22AQI (US)
16th June 2026
22AQI (US)
22AQI (US)
17th June 2026
24AQI (US)
24AQI (US)
18th June 2026
27AQI (US)
27AQI (US)
19th June 2026
18AQI (US)
18AQI (US)
20th June 2026
15AQI (US)
15AQI (US)
21st June 2026
18AQI (US)
18AQI (US)
22nd June 2026
23AQI (US)
23AQI (US)
23rd June 2026
22AQI (US)
22AQI (US)
24th June 2026
21AQI (US)
21AQI (US)
25th June 2026
19AQI (US)
19AQI (US)
26th June 2026
23AQI (US)
23AQI (US)
27th June 2026
27AQI (US)
27AQI (US)
28th June 2026
23AQI (US)
23AQI (US)
29th June 2026
21AQI (US)
21AQI (US)
30th June 2026
14AQI (US)
14AQI (US)
1st July 2026
14AQI (US)
14AQI (US)
2nd July 2026
14AQI (US)
14AQI (US)
3rd July 2026
13AQI (US)
13AQI (US)
4th July 2026
11AQI (US)
11AQI (US)
5th July 2026
10AQI (US)
10AQI (US)
6th July 2026
14AQI (US)
14AQI (US)
7th July 2026
12AQI (US)
12AQI (US)
8th July 2026
17AQI (US)
17AQI (US)
9th July 2026
16AQI (US)
16AQI (US)
10th July 2026
22AQI (US)
22AQI (US)
11th July 2026
49AQI (US)
49AQI (US)
12th July 2026
23AQI (US)
23AQI (US)
13th July 2026
28AQI (US)
28AQI (US)
14th July 2026
45AQI (US)
45AQI (US)
15th July 2026
34AQI (US)
34AQI (US)
16th July 2026
26AQI (US)
26AQI (US)
17th July 2026
25AQI (US)
25AQI (US)
18th July 2026
27AQI (US)
27AQI (US)
19th July 2026
24AQI (US)
24AQI (US)
20th July 2026
36AQI (US)
36AQI (US)
21st July 2026
34AQI (US)
34AQI (US)
22nd July 2026
23AQI (US)
23AQI (US)
23rd July 2026
30AQI (US)
30AQI (US)
24th July 2026
27AQI (US)
27AQI (US)
25th July 2026
26AQI (US)
26AQI (US)
26th July 2026
24AQI (US)
24AQI (US)
27th July 2026
36AQI (US)
36AQI (US)
28th July 2026
27AQI (US)
27AQI (US)
29th July 2026
36AQI (US)
36AQI (US)
30th July 2026
53AQI (US)
53AQI (US)
31st July 2026
65AQI (US)
65AQI (US)
1st August 2026
36AQI (US)
36AQI (US)
2nd August 2026
40AQI (US)
40AQI (US)
3rd August 2026
35AQI (US)
35AQI (US)
4th August 2026
40AQI (US)
40AQI (US)
5th August 2026
35AQI (US)
35AQI (US)
6th August 2026
7th August 2026
8th August 2026
9th August 2026
10th August 2026
11th August 2026
12th August 2026
13th August 2026
14th August 2026
15th August 2026
16th August 2026
17th August 2026
18th August 2026
19th August 2026
20th August 2026
21st August 2026
22nd August 2026
23rd August 2026
24th August 2026
25th August 2026
26th August 2026
27th August 2026
28th August 2026
29th August 2026
30th August 2026
31st August 2026
1st September 2026
2nd September 2026
3rd September 2026
4th September 2026
5th September 2026
6th September 2026
7th September 2026
8th September 2026
9th September 2026
10th September 2026
11th September 2026
12th September 2026
13th September 2026
14th September 2026
15th September 2026
16th September 2026
17th September 2026
18th September 2026
19th September 2026
20th September 2026
21st September 2026
22nd September 2026
23rd September 2026
24th September 2026
25th September 2026
26th September 2026
27th September 2026
28th September 2026
29th September 2026
30th September 2026
1st October 2026
2nd October 2026
3rd October 2026
4th October 2026
5th October 2026
6th October 2026
7th October 2026
8th October 2026
9th October 2026
10th October 2026
11th October 2026
12th October 2026
13th October 2026
14th October 2026
15th October 2026
16th October 2026
17th October 2026
18th October 2026
19th October 2026
20th October 2026
21st October 2026
22nd October 2026
23rd October 2026
24th October 2026
25th October 2026
26th October 2026
27th October 2026
28th October 2026
29th October 2026
30th October 2026
31st October 2026
1st November 2026
2nd November 2026
3rd November 2026
4th November 2026
5th November 2026
6th November 2026
7th November 2026
8th November 2026
9th November 2026
10th November 2026
11th November 2026
12th November 2026
13th November 2026
14th November 2026
15th November 2026
16th November 2026
17th November 2026
18th November 2026
19th November 2026
20th November 2026
21st November 2026
22nd November 2026
23rd November 2026
24th November 2026
25th November 2026
26th November 2026
27th November 2026
28th November 2026
29th November 2026
30th November 2026
1st December 2026
2nd December 2026
3rd December 2026
4th December 2026
5th December 2026
6th December 2026
7th December 2026
8th December 2026
9th December 2026
10th December 2026
11th December 2026
12th December 2026
13th December 2026
14th December 2026
15th December 2026
16th December 2026
17th December 2026
18th December 2026
19th December 2026
20th December 2026
21st December 2026
22nd December 2026
23rd December 2026
24th December 2026
25th December 2026
26th December 2026
27th December 2026
28th December 2026
29th December 2026
30th December 2026
31st December 2026
46AQI (US)
30AQI (US)
33AQI (US)
20AQI (US)
27AQI (US)
19AQI (US)
27AQI (US)
37AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202629AQI (US)
21
10
26
2
27
4
28
29
1
30
29
2
5
195
19
Highest AQI (US) recorded in
January46AQI (US)
Lowest AQI (US) recorded in
June19AQI (US)
202539AQI (US)
20
11
12
16
27
4
30
31
18
12
30
1
22
9
30
16
15
16
14
12
19
264
101
Highest AQI (US) recorded in
February56AQI (US)
Lowest AQI (US) recorded in
September20AQI (US)
202427AQI (US)
31
29
31
29
1
31
30
31
31
30
31
26
4
18
13
348
18
Highest AQI (US) recorded in
December46AQI (US)
Lowest AQI (US) recorded in
October19AQI (US)
202325AQI (US)
27
28
31
30
31
30
31
31
30
31
29
30
359
Highest AQI (US) recorded in
June34AQI (US)
Lowest AQI (US) recorded in
November18AQI (US)
202225AQI (US)
30
21
30
1
30
31
30
23
4
29
29
30
31
318
1
Highest AQI (US) recorded in
July33AQI (US)
Lowest AQI (US) recorded in
October17AQI (US)
202122AQI (US)
29
25
3
31
28
31
30
31
31
30
31
30
31
358
3
Highest AQI (US) recorded in
April29AQI (US)
Lowest AQI (US) recorded in
October15AQI (US)
202023AQI (US)
13
21
18
30
30
31
30
31
30
31
265
Highest AQI (US) recorded in
April31AQI (US)
Lowest AQI (US) recorded in
October14AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Most Polluted Year Recorded
2025(Avg.)
39AQI (US)Least Polluted Year Recorded
2021(Avg.)
22AQI (US)Sion's annual 2026 AQI (US) (29) shows an average percentage change of 11.9% (worsened AQI (US)) compared to previous years: 2020 (23), 2021 (22), 2022 (25), 2023 (25), 2024 (27), 2025 (39).
