Country Background
HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Biel Bienne, Bern, 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

Biel Bienne, Bern, Switzerland

2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
13th Aug 2025
59AQI
Lowest AQI recorded on
3rd Aug 2023
4AQI

Same Day Analysis (11th August):
On this day, AQI across the 4 years varied significantly: 2026 ranks 2nd highest AQI at 44 of Good air quality, showing improvement over 2025 on the same day.

Day & Night AQI Trend: 11th Aug - 12th Aug 2026

Biel Bienne, Bern, Switzerland

AQI
Day
Night
.

6 AM11th Aug 2026

9 PM

5 AM12th Aug 2026

Day time
Avg. Highest Time
2PM11th Aug

50AQI

Avg. Lowest Time
8AM11th Aug

40AQI

Night time
Avg. Highest Time
2AM12th Aug

50AQI

Avg. Lowest Time
4AM12th Aug

36AQI

In the last 24 hours,

Biel Bienne's AQI reached its highest point of 50 at 2 PM during the Day, while the lowest point, 36, was recorded at 4 AM during the Night between 11th Aug and 12th Aug 2026.

Day & Night AQI Trend : Jul - Aug 2026

Biel Bienne, Bern, Switzerland

JulAug
14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th
Day
Night
14th Jul 2026226 AMAQI
14th Jul 2026227 AMAQI
14th Jul 2026228 AMAQI
14th Jul 2026269 AMAQI
14th Jul 20263310 AMAQI
14th Jul 20263411 AMAQI
14th Jul 20263312 PMAQI
14th Jul 2026481 PMAQI
14th Jul 2026442 PMAQI
14th Jul 2026463 PMAQI
14th Jul 2026484 PMAQI
14th Jul 2026485 PMAQI
14th Jul 2026516 PMAQI
14th Jul 2026487 PMAQI
14th Jul 2026508 PMAQI
14th Jul 2026509 PMAQI
14th Jul 20263810 PMAQI
14th Jul 20262411 PMAQI
15th Jul 20262812 AMAQI
15th Jul 2026321 AMAQI
15th Jul 2026282 AMAQI
15th Jul 2026523 AMAQI
15th Jul 2026544 AMAQI
15th Jul 2026535 AMAQI

23°C16/33°C

15th Jul 2026546 AMAQI
15th Jul 2026537 AMAQI
15th Jul 2026518 AMAQI
15th Jul 2026409 AMAQI
15th Jul 20262610 AMAQI
15th Jul 20262611 AMAQI
15th Jul 20262412 PMAQI
15th Jul 2026261 PMAQI
15th Jul 2026262 PMAQI
15th Jul 2026283 PMAQI
15th Jul 2026284 PMAQI
15th Jul 2026245 PMAQI
15th Jul 2026266 PMAQI
15th Jul 2026277 PMAQI
15th Jul 2026268 PMAQI
15th Jul 2026269 PMAQI
15th Jul 20262710 PMAQI
15th Jul 20262811 PMAQI
16th Jul 20262812 AMAQI
16th Jul 2026301 AMAQI
16th Jul 2026262 AMAQI
16th Jul 2026283 AMAQI
16th Jul 2026224 AMAQI
16th Jul 2026245 AMAQI

22°C15/31°C

16th Jul 2026226 AMAQI
16th Jul 2026267 AMAQI
16th Jul 2026298 AMAQI
16th Jul 2026339 AMAQI
16th Jul 20262810 AMAQI
16th Jul 20262811 AMAQI
16th Jul 20263012 PMAQI
16th Jul 2026241 PMAQI
16th Jul 2026272 PMAQI
16th Jul 2026263 PMAQI
16th Jul 2026224 PMAQI
16th Jul 2026285 PMAQI
16th Jul 2026266 PMAQI
16th Jul 2026287 PMAQI
16th Jul 2026268 PMAQI
16th Jul 2026289 PMAQI
16th Jul 20262410 PMAQI
16th Jul 20262411 PMAQI
17th Jul 20262612 AMAQI
17th Jul 2026221 AMAQI
17th Jul 2026262 AMAQI
17th Jul 2026263 AMAQI
17th Jul 2026244 AMAQI
17th Jul 2026175 AMAQI

21°C14/33°C

17th Jul 2026226 AMAQI
17th Jul 2026187 AMAQI
17th Jul 2026238 AMAQI
17th Jul 2026259 AMAQI
17th Jul 20262510 AMAQI
17th Jul 20262911 AMAQI
17th Jul 20262912 PMAQI
17th Jul 2026291 PMAQI
17th Jul 2026252 PMAQI
17th Jul 2026233 PMAQI
17th Jul 2026214 PMAQI
17th Jul 2026345 PMAQI
17th Jul 2026296 PMAQI
17th Jul 2026237 PMAQI
17th Jul 2026238 PMAQI
17th Jul 2026219 PMAQI
17th Jul 20262110 PMAQI
17th Jul 20262911 PMAQI
18th Jul 20262912 AMAQI
18th Jul 2026361 AMAQI
18th Jul 2026382 AMAQI
18th Jul 2026333 AMAQI
18th Jul 2026294 AMAQI
18th Jul 2026365 AMAQI

21°C15/30°C

18th Jul 2026276 AMAQI
18th Jul 2026277 AMAQI
18th Jul 2026368 AMAQI
18th Jul 2026369 AMAQI
18th Jul 20262910 AMAQI
18th Jul 20262511 AMAQI
18th Jul 20262912 PMAQI
18th Jul 2026251 PMAQI
18th Jul 2026252 PMAQI
18th Jul 2026253 PMAQI
18th Jul 2026274 PMAQI
18th Jul 2026235 PMAQI
18th Jul 2026216 PMAQI
18th Jul 2026237 PMAQI
18th Jul 2026258 PMAQI
18th Jul 2026239 PMAQI
18th Jul 20262110 PMAQI
18th Jul 20262511 PMAQI
19th Jul 20262712 AMAQI
19th Jul 2026401 AMAQI
19th Jul 2026292 AMAQI
19th Jul 2026233 AMAQI
19th Jul 2026234 AMAQI
19th Jul 2026255 AMAQI

20°C13/27°C

19th Jul 2026256 AMAQI
19th Jul 2026277 AMAQI
19th Jul 2026258 AMAQI
19th Jul 2026279 AMAQI
19th Jul 20263410 AMAQI
19th Jul 20264011 AMAQI
19th Jul 20264212 PMAQI
19th Jul 2026441 PMAQI
19th Jul 2026442 PMAQI
19th Jul 2026443 PMAQI
19th Jul 2026464 PMAQI
19th Jul 2026505 PMAQI
19th Jul 2026446 PMAQI
19th Jul 2026487 PMAQI
19th Jul 2026468 PMAQI
19th Jul 2026489 PMAQI
19th Jul 20265010 PMAQI
19th Jul 20265011 PMAQI
20th Jul 20265012 AMAQI
20th Jul 2026491 AMAQI
20th Jul 2026482 AMAQI
20th Jul 2026443 AMAQI
20th Jul 2026444 AMAQI
20th Jul 2026485 AMAQI

19°C12/26°C

20th Jul 2026466 AMAQI
20th Jul 2026387 AMAQI
20th Jul 2026348 AMAQI
20th Jul 2026259 AMAQI
20th Jul 20262910 AMAQI
20th Jul 20262311 AMAQI
20th Jul 20262712 PMAQI
20th Jul 2026251 PMAQI
20th Jul 2026252 PMAQI
20th Jul 2026343 PMAQI
20th Jul 2026314 PMAQI
20th Jul 2026275 PMAQI
20th Jul 2026276 PMAQI
20th Jul 2026237 PMAQI
20th Jul 2026258 PMAQI
20th Jul 2026279 PMAQI
20th Jul 20262510 PMAQI
20th Jul 20262111 PMAQI
21st Jul 20262112 AMAQI
21st Jul 2026271 AMAQI
21st Jul 2026292 AMAQI
21st Jul 2026293 AMAQI
21st Jul 2026234 AMAQI

18°C9/26°C

21st Jul 2026256 AMAQI
21st Jul 2026277 AMAQI
21st Jul 2026258 AMAQI
21st Jul 2026299 AMAQI
21st Jul 20263410 AMAQI
21st Jul 20262711 AMAQI
21st Jul 20263612 PMAQI
21st Jul 2026271 PMAQI
21st Jul 2026272 PMAQI
21st Jul 2026273 PMAQI
21st Jul 2026274 PMAQI
21st Jul 2026255 PMAQI
21st Jul 2026256 PMAQI
21st Jul 2026277 PMAQI
21st Jul 2026258 PMAQI
21st Jul 2026219 PMAQI
21st Jul 20262110 PMAQI
21st Jul 20262511 PMAQI
22nd Jul 20262912 AMAQI
22nd Jul 2026291 AMAQI
22nd Jul 2026292 AMAQI
22nd Jul 2026273 AMAQI
22nd Jul 2026254 AMAQI
22nd Jul 2026275 AMAQI

17°C8/25°C

22nd Jul 2026276 AMAQI
22nd Jul 2026257 AMAQI
22nd Jul 2026258 AMAQI
22nd Jul 2026239 AMAQI
22nd Jul 20262310 AMAQI
22nd Jul 20262511 AMAQI
22nd Jul 20262512 PMAQI
22nd Jul 2026251 PMAQI
22nd Jul 2026232 PMAQI
22nd Jul 2026233 PMAQI
22nd Jul 2026234 PMAQI
22nd Jul 2026215 PMAQI
22nd Jul 2026236 PMAQI
22nd Jul 2026257 PMAQI
22nd Jul 2026238 PMAQI
22nd Jul 2026239 PMAQI
22nd Jul 20262910 PMAQI
22nd Jul 20262311 PMAQI
23rd Jul 20263112 AMAQI
23rd Jul 2026291 AMAQI
23rd Jul 2026292 AMAQI
23rd Jul 2026253 AMAQI
23rd Jul 2026254 AMAQI
23rd Jul 2026235 AMAQI

17°C8/26°C

23rd Jul 2026256 AMAQI
23rd Jul 2026217 AMAQI
23rd Jul 2026218 AMAQI
23rd Jul 2026219 AMAQI
23rd Jul 20262510 AMAQI
23rd Jul 20262711 AMAQI
23rd Jul 20262512 PMAQI
23rd Jul 2026251 PMAQI
23rd Jul 2026212 PMAQI
23rd Jul 2026213 PMAQI
23rd Jul 2026214 PMAQI
23rd Jul 2026215 PMAQI
23rd Jul 2026216 PMAQI
23rd Jul 2026257 PMAQI
23rd Jul 2026278 PMAQI
23rd Jul 2026259 PMAQI
23rd Jul 20262310 PMAQI
23rd Jul 20262511 PMAQI
24th Jul 20262312 AMAQI
24th Jul 2026251 AMAQI
24th Jul 2026232 AMAQI
24th Jul 2026233 AMAQI
24th Jul 2026294 AMAQI
24th Jul 2026235 AMAQI

18°C11/26°C

24th Jul 2026256 AMAQI
24th Jul 2026237 AMAQI
24th Jul 2026238 AMAQI
24th Jul 2026299 AMAQI
24th Jul 20262310 AMAQI
24th Jul 20262111 AMAQI
24th Jul 20262512 PMAQI
24th Jul 2026231 PMAQI
24th Jul 2026252 PMAQI
24th Jul 2026253 PMAQI
24th Jul 2026254 PMAQI
24th Jul 2026215 PMAQI
24th Jul 2026216 PMAQI
24th Jul 2026217 PMAQI
24th Jul 2026218 PMAQI
24th Jul 2026239 PMAQI
24th Jul 20263010 PMAQI
24th Jul 20262311 PMAQI
25th Jul 20262712 AMAQI
25th Jul 2026211 AMAQI
25th Jul 2026252 AMAQI
25th Jul 2026253 AMAQI
25th Jul 2026214 AMAQI
25th Jul 2026215 AMAQI

18°C8/28°C

25th Jul 2026236 AMAQI
25th Jul 2026217 AMAQI
25th Jul 2026278 AMAQI
25th Jul 2026219 AMAQI
25th Jul 20262310 AMAQI
25th Jul 20262311 AMAQI
25th Jul 20262912 PMAQI
25th Jul 2026251 PMAQI
25th Jul 2026232 PMAQI
25th Jul 2026233 PMAQI
25th Jul 2026334 PMAQI
25th Jul 2026475 PMAQI
25th Jul 2026486 PMAQI
25th Jul 2026487 PMAQI
25th Jul 2026508 PMAQI
25th Jul 2026489 PMAQI
25th Jul 20264810 PMAQI
25th Jul 20265011 PMAQI
26th Jul 20265212 AMAQI
26th Jul 2026521 AMAQI
26th Jul 2026502 AMAQI
26th Jul 2026463 AMAQI
26th Jul 2026484 AMAQI
26th Jul 2026345 AMAQI

21°C11/31°C

26th Jul 2026256 AMAQI
26th Jul 2026277 AMAQI
26th Jul 2026368 AMAQI
26th Jul 2026489 AMAQI
26th Jul 20265010 AMAQI
26th Jul 20264911 AMAQI
26th Jul 20264912 PMAQI
26th Jul 2026521 PMAQI
26th Jul 2026452 PMAQI
26th Jul 2026503 PMAQI
26th Jul 2026524 PMAQI
26th Jul 2026465 PMAQI
26th Jul 2026516 PMAQI
26th Jul 2026567 PMAQI
26th Jul 2026618 PMAQI
26th Jul 2026639 PMAQI
26th Jul 20266410 PMAQI
26th Jul 20266311 PMAQI
27th Jul 20265812 AMAQI
27th Jul 2026571 AMAQI
27th Jul 2026592 AMAQI
27th Jul 2026573 AMAQI
27th Jul 2026554 AMAQI
27th Jul 2026515 AMAQI

18°C13/26°C

27th Jul 2026466 AMAQI
27th Jul 2026447 AMAQI
27th Jul 2026368 AMAQI
27th Jul 2026389 AMAQI
27th Jul 20263310 AMAQI
27th Jul 20263811 AMAQI
27th Jul 20263312 PMAQI
27th Jul 2026331 PMAQI
27th Jul 2026292 PMAQI
27th Jul 2026253 PMAQI
27th Jul 2026254 PMAQI
27th Jul 2026255 PMAQI
27th Jul 2026236 PMAQI
27th Jul 2026237 PMAQI
27th Jul 2026278 PMAQI
27th Jul 2026319 PMAQI
27th Jul 20263410 PMAQI
27th Jul 20262511 PMAQI
28th Jul 20262312 AMAQI
28th Jul 2026251 AMAQI
28th Jul 2026232 AMAQI
28th Jul 2026253 AMAQI
28th Jul 2026234 AMAQI
28th Jul 2026255 AMAQI

19°C13/26°C

28th Jul 2026256 AMAQI
28th Jul 2026257 AMAQI
28th Jul 2026238 AMAQI
28th Jul 2026239 AMAQI
28th Jul 20262510 AMAQI
28th Jul 20262111 AMAQI
28th Jul 20262112 PMAQI
28th Jul 2026211 PMAQI
28th Jul 2026252 PMAQI
28th Jul 2026293 PMAQI
28th Jul 2026294 PMAQI
28th Jul 2026255 PMAQI
28th Jul 2026256 PMAQI
28th Jul 2026217 PMAQI
28th Jul 2026258 PMAQI
28th Jul 2026259 PMAQI
28th Jul 20262510 PMAQI
28th Jul 20263211 PMAQI
29th Jul 20262712 AMAQI
29th Jul 2026441 AMAQI
29th Jul 2026362 AMAQI
29th Jul 2026423 AMAQI
29th Jul 2026404 AMAQI
29th Jul 2026405 AMAQI

21°C12/31°C

29th Jul 2026326 AMAQI
29th Jul 2026297 AMAQI
29th Jul 2026298 AMAQI
29th Jul 2026449 AMAQI
29th Jul 20264410 AMAQI
29th Jul 20264211 AMAQI
29th Jul 20264212 PMAQI
29th Jul 2026481 PMAQI
29th Jul 2026512 PMAQI
29th Jul 2026503 PMAQI
29th Jul 2026484 PMAQI
29th Jul 2026445 PMAQI
29th Jul 2026446 PMAQI
29th Jul 2026517 PMAQI
29th Jul 2026528 PMAQI
29th Jul 2026529 PMAQI
29th Jul 20265210 PMAQI
29th Jul 20265111 PMAQI
30th Jul 20265312 AMAQI
30th Jul 2026531 AMAQI
30th Jul 2026512 AMAQI
30th Jul 2026523 AMAQI
30th Jul 2026524 AMAQI
30th Jul 2026525 AMAQI

24°C16/35°C

30th Jul 2026526 AMAQI
30th Jul 2026547 AMAQI
30th Jul 2026528 AMAQI
30th Jul 2026559 AMAQI
30th Jul 20265710 AMAQI
30th Jul 20265611 AMAQI
30th Jul 20265512 PMAQI
30th Jul 2026531 PMAQI
30th Jul 2026532 PMAQI
30th Jul 2026533 PMAQI
30th Jul 2026544 PMAQI
30th Jul 2026525 PMAQI
30th Jul 2026606 PMAQI
30th Jul 2026647 PMAQI
30th Jul 2026688 PMAQI
30th Jul 2026659 PMAQI
30th Jul 20266910 PMAQI
30th Jul 20266811 PMAQI
31st Jul 20266912 AMAQI
31st Jul 2026701 AMAQI
31st Jul 2026742 AMAQI
31st Jul 2026723 AMAQI
31st Jul 2026724 AMAQI
31st Jul 2026685 AMAQI

24°C17/36°C

31st Jul 2026686 AMAQI
31st Jul 2026667 AMAQI
31st Jul 2026688 AMAQI
31st Jul 2026689 AMAQI
31st Jul 20266910 AMAQI
31st Jul 20266811 AMAQI
31st Jul 20266612 PMAQI
31st Jul 2026681 PMAQI
31st Jul 2026662 PMAQI
31st Jul 2026663 PMAQI
31st Jul 2026624 PMAQI
31st Jul 2026555 PMAQI
31st Jul 2026576 PMAQI
31st Jul 2026557 PMAQI
31st Jul 2026538 PMAQI
31st Jul 2026559 PMAQI
31st Jul 20265310 PMAQI
31st Jul 20265511 PMAQI
1st Aug 20265812 AMAQI
1st Aug 2026551 AMAQI
1st Aug 2026492 AMAQI
1st Aug 2026493 AMAQI
1st Aug 2026494 AMAQI
1st Aug 2026425 AMAQI

23°C16/31°C

1st Aug 2026446 AMAQI
1st Aug 2026447 AMAQI
1st Aug 2026448 AMAQI
1st Aug 2026469 AMAQI
1st Aug 20264810 AMAQI
1st Aug 20264611 AMAQI
1st Aug 20264412 PMAQI
1st Aug 2026421 PMAQI
1st Aug 2026442 PMAQI
1st Aug 2026423 PMAQI
1st Aug 2026464 PMAQI
1st Aug 2026465 PMAQI
1st Aug 2026446 PMAQI
1st Aug 2026467 PMAQI
1st Aug 2026468 PMAQI
1st Aug 2026389 PMAQI
1st Aug 20264010 PMAQI
1st Aug 20263611 PMAQI
2nd Aug 20263812 AMAQI
2nd Aug 2026381 AMAQI
2nd Aug 2026362 AMAQI
2nd Aug 2026403 AMAQI
2nd Aug 2026384 AMAQI
2nd Aug 2026295 AMAQI

21°C14/28°C

2nd Aug 2026296 AMAQI
2nd Aug 2026297 AMAQI
2nd Aug 2026238 AMAQI
2nd Aug 2026219 AMAQI
2nd Aug 20262110 AMAQI
2nd Aug 20263311 AMAQI
2nd Aug 20263812 PMAQI
2nd Aug 2026361 PMAQI
2nd Aug 2026442 PMAQI
2nd Aug 2026403 PMAQI
2nd Aug 2026444 PMAQI
2nd Aug 2026425 PMAQI
2nd Aug 2026426 PMAQI
2nd Aug 2026467 PMAQI
2nd Aug 2026408 PMAQI
2nd Aug 2026409 PMAQI
2nd Aug 20263010 PMAQI
2nd Aug 20263611 PMAQI
3rd Aug 20264012 AMAQI
3rd Aug 2026461 AMAQI
3rd Aug 2026432 AMAQI
3rd Aug 2026503 AMAQI
3rd Aug 2026484 AMAQI
3rd Aug 2026465 AMAQI

23°C14/32°C

3rd Aug 2026446 AMAQI
3rd Aug 2026447 AMAQI
3rd Aug 2026448 AMAQI
3rd Aug 2026469 AMAQI
3rd Aug 20264410 AMAQI
3rd Aug 20264611 AMAQI
3rd Aug 20264612 PMAQI
3rd Aug 2026441 PMAQI
3rd Aug 2026532 PMAQI
3rd Aug 2026513 PMAQI
3rd Aug 2026524 PMAQI
3rd Aug 2026505 PMAQI
3rd Aug 2026506 PMAQI
3rd Aug 2026517 PMAQI
3rd Aug 2026498 PMAQI
3rd Aug 2026449 PMAQI
3rd Aug 20265010 PMAQI
3rd Aug 20265011 PMAQI
4th Aug 20264412 AMAQI
4th Aug 2026421 AMAQI
4th Aug 2026422 AMAQI
4th Aug 2026403 AMAQI
4th Aug 2026404 AMAQI
4th Aug 2026425 AMAQI

24°C16/35°C

4th Aug 2026386 AMAQI
4th Aug 2026387 AMAQI
4th Aug 2026388 AMAQI
4th Aug 2026389 AMAQI
4th Aug 20264010 AMAQI
4th Aug 20264211 AMAQI
4th Aug 20264612 PMAQI
4th Aug 2026481 PMAQI
4th Aug 2026482 PMAQI
4th Aug 2026503 PMAQI
4th Aug 2026514 PMAQI
4th Aug 2026515 PMAQI
4th Aug 2026516 PMAQI
4th Aug 2026527 PMAQI
4th Aug 2026508 PMAQI
4th Aug 2026519 PMAQI
4th Aug 20265210 PMAQI
4th Aug 20264211 PMAQI
5th Aug 20264212 AMAQI
5th Aug 2026421 AMAQI
5th Aug 2026462 AMAQI
5th Aug 2026423 AMAQI
5th Aug 2026424 AMAQI
5th Aug 2026275 AMAQI

22°C15/34°C

5th Aug 2026256 AMAQI
5th Aug 2026257 AMAQI
5th Aug 2026278 AMAQI
5th Aug 2026259 AMAQI
5th Aug 20263410 AMAQI
5th Aug 20263411 AMAQI
5th Aug 20262512 PMAQI
5th Aug 2026251 PMAQI
5th Aug 2026292 PMAQI
5th Aug 2026273 PMAQI
5th Aug 2026274 PMAQI
5th Aug 2026255 PMAQI
5th Aug 2026276 PMAQI
5th Aug 2026257 PMAQI
5th Aug 2026258 PMAQI
5th Aug 2026259 PMAQI
5th Aug 20262310 PMAQI
5th Aug 20262511 PMAQI
6th Aug 20263612 AMAQI
6th Aug 2026321 AMAQI
6th Aug 2026302 AMAQI
6th Aug 2026273 AMAQI
6th Aug 2026254 AMAQI
6th Aug 2026235 AMAQI

22°C14/30°C

6th Aug 2026256 AMAQI
6th Aug 2026277 AMAQI
6th Aug 2026348 AMAQI
6th Aug 2026429 AMAQI
6th Aug 20264810 AMAQI
6th Aug 20264811 AMAQI
6th Aug 20263612 PMAQI
6th Aug 2026321 PMAQI
6th Aug 2026412 PMAQI
6th Aug 2026313 PMAQI
6th Aug 2026254 PMAQI
6th Aug 2026255 PMAQI
6th Aug 2026256 PMAQI
6th Aug 2026237 PMAQI
6th Aug 2026238 PMAQI
6th Aug 2026259 PMAQI
6th Aug 20263210 PMAQI
6th Aug 20262511 PMAQI
7th Aug 20262912 AMAQI
7th Aug 2026251 AMAQI
7th Aug 2026272 AMAQI
7th Aug 2026233 AMAQI
7th Aug 2026254 AMAQI
7th Aug 2026335 AMAQI

22°C15/29°C

7th Aug 2026386 AMAQI
7th Aug 2026297 AMAQI
7th Aug 2026278 AMAQI
7th Aug 2026279 AMAQI
7th Aug 20262510 AMAQI
7th Aug 20262911 AMAQI
7th Aug 20262312 PMAQI
7th Aug 2026421 PMAQI
7th Aug 2026482 PMAQI
7th Aug 2026253 PMAQI
7th Aug 2026254 PMAQI
7th Aug 2026335 PMAQI
7th Aug 2026426 PMAQI
7th Aug 2026277 PMAQI
7th Aug 2026298 PMAQI
7th Aug 2026369 PMAQI
7th Aug 20262310 PMAQI
7th Aug 20262511 PMAQI
8th Aug 20263812 AMAQI
8th Aug 2026311 AMAQI
8th Aug 2026382 AMAQI
8th Aug 2026343 AMAQI
8th Aug 2026314 AMAQI
8th Aug 2026255 AMAQI

20°C12/28°C

8th Aug 2026316 AMAQI
8th Aug 2026277 AMAQI
8th Aug 2026218 AMAQI
8th Aug 2026219 AMAQI
8th Aug 20262110 AMAQI
8th Aug 20262311 AMAQI
8th Aug 20262112 PMAQI
8th Aug 2026231 PMAQI
8th Aug 2026212 PMAQI
8th Aug 2026213 PMAQI
8th Aug 2026234 PMAQI
8th Aug 2026295 PMAQI
8th Aug 2026276 PMAQI
8th Aug 2026347 PMAQI
8th Aug 2026258 PMAQI
8th Aug 2026259 PMAQI
8th Aug 20262510 PMAQI
8th Aug 20263211 PMAQI
9th Aug 20262512 AMAQI
9th Aug 2026341 AMAQI
9th Aug 2026462 AMAQI
9th Aug 2026443 AMAQI
9th Aug 2026464 AMAQI
9th Aug 2026295 AMAQI

21°C12/31°C

9th Aug 2026276 AMAQI
9th Aug 2026297 AMAQI
9th Aug 2026298 AMAQI
9th Aug 2026339 AMAQI
9th Aug 20263610 AMAQI
9th Aug 20262711 AMAQI
9th Aug 20262312 PMAQI
9th Aug 2026381 PMAQI
9th Aug 2026232 PMAQI
9th Aug 2026253 PMAQI
9th Aug 2026254 PMAQI
9th Aug 2026235 PMAQI
9th Aug 2026256 PMAQI
9th Aug 2026237 PMAQI
9th Aug 2026238 PMAQI
9th Aug 2026219 PMAQI
9th Aug 20262110 PMAQI
9th Aug 20262511 PMAQI
10th Aug 20262512 AMAQI
10th Aug 2026251 AMAQI
10th Aug 2026272 AMAQI
10th Aug 2026233 AMAQI
10th Aug 2026234 AMAQI
10th Aug 2026255 AMAQI

24°C15/33°C

10th Aug 2026256 AMAQI
10th Aug 2026257 AMAQI
10th Aug 2026298 AMAQI
10th Aug 2026259 AMAQI
10th Aug 20263610 AMAQI
10th Aug 20264411 AMAQI
10th Aug 20264012 PMAQI
10th Aug 2026441 PMAQI
10th Aug 2026362 PMAQI
10th Aug 2026293 PMAQI
10th Aug 2026344 PMAQI
10th Aug 2026505 PMAQI
10th Aug 2026466 PMAQI
10th Aug 2026447 PMAQI
10th Aug 2026308 PMAQI
10th Aug 2026299 PMAQI
10th Aug 20262710 PMAQI
10th Aug 20262511 PMAQI
11th Aug 20264212 AMAQI
11th Aug 2026441 AMAQI
11th Aug 2026422 AMAQI
11th Aug 2026423 AMAQI
11th Aug 2026384 AMAQI
11th Aug 2026365 AMAQI

22°C15/31°C

11th Aug 2026406 AMAQI
11th Aug 2026427 AMAQI
11th Aug 2026408 AMAQI
11th Aug 2026469 AMAQI
11th Aug 20264210 AMAQI
11th Aug 20264911 AMAQI
11th Aug 20264912 PMAQI
11th Aug 2026481 PMAQI
11th Aug 2026502 PMAQI
11th Aug 2026463 PMAQI
11th Aug 2026464 PMAQI
11th Aug 2026465 PMAQI
11th Aug 2026466 PMAQI
11th Aug 2026447 PMAQI
11th Aug 2026448 PMAQI
11th Aug 2026469 PMAQI
11th Aug 20264610 PMAQI
11th Aug 20264611 PMAQI
12th Aug 20264812 AMAQI
12th Aug 2026481 AMAQI
12th Aug 2026502 AMAQI
12th Aug 2026483 AMAQI
12th Aug 2026364 AMAQI
12th Aug 2026465 AMAQI

23°C14/32°C

12th Aug 2026466 AMAQI
6 AM
12th Aug 2026467 AMAQI
12th Aug 2026508 AMAQI
12th Aug 2026489 AMAQI
12th Aug 20265110 AMAQI
12th Aug 20265411 AMAQI
12th Aug 20265312 PMAQI
12th Aug 2026531 PMAQI
1 PM
12th Aug 2026522 PMAQI
12th Aug 2026463 PMAQI
12th Aug 2026464 PMAQI
12th Aug 2026485 PMAQI
12th Aug 2026496 PMAQI
12th Aug 2026487 PMAQI
12th Aug 2026518 PMAQI
12th Aug 2026489 PMAQI
9 PM
12th Aug 20264610 PMAQI
12th Aug 20265011 PMAQI
1 AM
5 AM

23°C13/32°C

Day time
Avg. Highest Time
1 PM - 9 PM

36AQI

9 hours / Day
270 hours / Month
Avg. Lowest Time
6 AM - 8 AM

33AQI

3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 PM to 9 PM (Avg. 36), while the lowest AQI was between 6 AM to 8 AM (Avg. 33).
Night time
Avg. Highest Time
12 AM - 4 AM

37AQI

5 hours / Day
150 hours / Month
Avg. Lowest Time
5 AM

34AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 4 AM (Avg. 37), while the lowest AQI was between 5 AM to 5 AM (Avg. 34).

2026 Days Vs Air Quality

Biel Bienne, Bern, Switzerland

2026

88%

194

12%

26

Total number of days with different AQI categories in last 224 days in 2026 (141 days remaining)

Good
194 Days
Moderate
26 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 88%

Health Risk Level:

Low

In 2026, 88% of 224 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

Biel Bienne, Bern, 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
68AQI (US)
2nd January 2026
34AQI (US)
3rd January 2026
23AQI (US)
4th January 2026
51AQI (US)
5th January 2026
64AQI (US)
6th January 2026
69AQI (US)
7th January 2026
63AQI (US)
8th January 2026
35AQI (US)
9th January 2026
22AQI (US)
10th January 2026
11AQI (US)
11th January 2026
35AQI (US)
12th January 2026
48AQI (US)
13th January 2026
43AQI (US)
14th January 2026
43AQI (US)
15th January 2026
42AQI (US)
16th January 2026
52AQI (US)
17th January 2026
62AQI (US)
18th January 2026
70AQI (US)
19th January 2026
57AQI (US)
20th January 2026
53AQI (US)
21st January 2026
57AQI (US)
22nd January 2026
56AQI (US)
23rd January 2026
69AQI (US)
24th January 2026
50AQI (US)
25th January 2026
60AQI (US)
26th January 2026
56AQI (US)
27th January 2026
26AQI (US)
28th January 2026
32AQI (US)
29th January 2026
32AQI (US)
30th January 2026
45AQI (US)
31st January 2026
41AQI (US)
1st February 2026
49AQI (US)
2nd February 2026
50AQI (US)
3rd February 2026
39AQI (US)
4th February 2026
38AQI (US)
5th February 2026
52AQI (US)
6th February 2026
42AQI (US)
7th February 2026
17AQI (US)
8th February 2026
32AQI (US)
9th February 2026
45AQI (US)
10th February 2026
40AQI (US)
11th February 2026
20AQI (US)
12th February 2026
23AQI (US)
13th February 2026
30AQI (US)
14th February 2026
42AQI (US)
15th February 2026
34AQI (US)
16th February 2026
32AQI (US)
17th February 2026
37AQI (US)
18th February 2026
36AQI (US)
19th February 2026
37AQI (US)
20th February 2026
29AQI (US)
21st February 2026
18AQI (US)
22nd February 2026
24AQI (US)
23rd February 2026
34AQI (US)
24th February 2026
32AQI (US)
25th February 2026
34AQI (US)
26th February 2026
33AQI (US)
27th February 2026
35AQI (US)
28th February 2026
33AQI (US)
1st March 2026
31AQI (US)
2nd March 2026
50AQI (US)
3rd March 2026
47AQI (US)
4th March 2026
44AQI (US)
5th March 2026
58AQI (US)
6th March 2026
74AQI (US)
7th March 2026
81AQI (US)
8th March 2026
82AQI (US)
9th March 2026
67AQI (US)
10th March 2026
50AQI (US)
11th March 2026
13AQI (US)
12th March 2026
18AQI (US)
13th March 2026
38AQI (US)
14th March 2026
35AQI (US)
15th March 2026
29AQI (US)
16th March 2026
35AQI (US)
17th March 2026
31AQI (US)
18th March 2026
30AQI (US)
19th March 2026
64AQI (US)
20th March 2026
55AQI (US)
21st March 2026
43AQI (US)
22nd March 2026
38AQI (US)
23rd March 2026
42AQI (US)
24th March 2026
36AQI (US)
25th March 2026
33AQI (US)
26th March 2026
9AQI (US)
27th March 2026
20AQI (US)
28th March 2026
28AQI (US)
29th March 2026
25AQI (US)
30th March 2026
22AQI (US)
31st March 2026
27AQI (US)
1st April 2026
29AQI (US)
2nd April 2026
28AQI (US)
3rd April 2026
28AQI (US)
4th April 2026
24AQI (US)
5th April 2026
30AQI (US)
6th April 2026
25AQI (US)
7th April 2026
28AQI (US)
8th April 2026
26AQI (US)
9th April 2026
26AQI (US)
10th April 2026
28AQI (US)
11th April 2026
34AQI (US)
12th April 2026
26AQI (US)
13th April 2026
14AQI (US)
14th April 2026
22AQI (US)
15th April 2026
38AQI (US)
16th April 2026
33AQI (US)
17th April 2026
18th April 2026
26AQI (US)
19th April 2026
26AQI (US)
20th April 2026
22AQI (US)
21st April 2026
21AQI (US)
22nd April 2026
23rd April 2026
22AQI (US)
24th April 2026
21AQI (US)
25th April 2026
26AQI (US)
26th April 2026
25AQI (US)
27th April 2026
27AQI (US)
28th April 2026
23AQI (US)
29th April 2026
20AQI (US)
30th April 2026
22AQI (US)
1st May 2026
26AQI (US)
2nd May 2026
25AQI (US)
3rd May 2026
21AQI (US)
4th May 2026
26AQI (US)
5th May 2026
29AQI (US)
6th May 2026
26AQI (US)
7th May 2026
20AQI (US)
8th May 2026
24AQI (US)
9th May 2026
10th May 2026
28AQI (US)
11th May 2026
24AQI (US)
12th May 2026
20AQI (US)
13th May 2026
22AQI (US)
14th May 2026
21AQI (US)
15th May 2026
26AQI (US)
16th May 2026
37AQI (US)
17th May 2026
37AQI (US)
18th May 2026
35AQI (US)
19th May 2026
36AQI (US)
20th May 2026
35AQI (US)
21st May 2026
34AQI (US)
22nd May 2026
35AQI (US)
23rd May 2026
38AQI (US)
24th May 2026
52AQI (US)
25th May 2026
41AQI (US)
26th May 2026
42AQI (US)
27th May 2026
30AQI (US)
28th May 2026
30AQI (US)
29th May 2026
27AQI (US)
30th May 2026
29AQI (US)
31st May 2026
30AQI (US)
1st June 2026
31AQI (US)
2nd June 2026
32AQI (US)
3rd June 2026
16AQI (US)
4th June 2026
11AQI (US)
5th June 2026
16AQI (US)
6th June 2026
22AQI (US)
7th June 2026
20AQI (US)
8th June 2026
23AQI (US)
9th June 2026
19AQI (US)
10th June 2026
20AQI (US)
11th June 2026
18AQI (US)
12th June 2026
20AQI (US)
13th June 2026
21AQI (US)
14th June 2026
20AQI (US)
15th June 2026
22AQI (US)
16th June 2026
27AQI (US)
17th June 2026
28AQI (US)
18th June 2026
27AQI (US)
19th June 2026
25AQI (US)
20th June 2026
23AQI (US)
21st June 2026
26AQI (US)
22nd June 2026
32AQI (US)
23rd June 2026
41AQI (US)
24th June 2026
26AQI (US)
25th June 2026
26AQI (US)
26th June 2026
31AQI (US)
27th June 2026
30AQI (US)
28th June 2026
26AQI (US)
29th June 2026
33AQI (US)
30th June 2026
24AQI (US)
1st July 2026
23AQI (US)
2nd July 2026
21AQI (US)
3rd July 2026
24AQI (US)
4th July 2026
22AQI (US)
5th July 2026
18AQI (US)
6th July 2026
19AQI (US)
7th July 2026
21AQI (US)
8th July 2026
25AQI (US)
9th July 2026
25AQI (US)
10th July 2026
28AQI (US)
11th July 2026
29AQI (US)
12th July 2026
27AQI (US)
13th July 2026
28AQI (US)
14th July 2026
36AQI (US)
15th July 2026
34AQI (US)
16th July 2026
27AQI (US)
17th July 2026
25AQI (US)
18th July 2026
28AQI (US)
19th July 2026
38AQI (US)
20th July 2026
33AQI (US)
21st July 2026
26AQI (US)
22nd July 2026
25AQI (US)
23rd July 2026
24AQI (US)
24th July 2026
24AQI (US)
25th July 2026
31AQI (US)
26th July 2026
49AQI (US)
27th July 2026
38AQI (US)
28th July 2026
25AQI (US)
29th July 2026
43AQI (US)
30th July 2026
56AQI (US)
31st July 2026
64AQI (US)
1st August 2026
45AQI (US)
2nd August 2026
36AQI (US)
3rd August 2026
47AQI (US)
4th August 2026
45AQI (US)
5th August 2026
30AQI (US)
6th August 2026
31AQI (US)
7th August 2026
30AQI (US)
8th August 2026
27AQI (US)
9th August 2026
29AQI (US)
10th August 2026
32AQI (US)
11th August 2026
44AQI (US)
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

47AQI (US)

35AQI (US)

40AQI (US)

26AQI (US)

30AQI (US)

25AQI (US)

30AQI (US)

36AQI (US)

No. of days

Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days

202634AQI (US)

16
15
27
1
24
7
28
29
1
30
29
2
11
194
26

Highest AQI (US) recorded in

January

47AQI (US)

Lowest AQI (US) recorded in

June

25AQI (US)

202538AQI (US)

19
12
8
20
21
10
30
31
27
3
31
25
6
30
13
18
12
18
6
25
253
112

Highest AQI (US) recorded in

February

60AQI (US)

Lowest AQI (US) recorded in

September

20AQI (US)

202414AQI (US)

31
29
31
30
31
30
31
31
3
13
30
25
6
315
6

Highest AQI (US) recorded in

December

38AQI (US)

Lowest AQI (US) recorded in

July

5AQI (US)

202312AQI (US)

29
2
23
5
27
4
30
31
30
31
31
30
31
29
31
353
11

Highest AQI (US) recorded in

February

37AQI (US)

Lowest AQI (US) recorded in

July

5AQI (US)

202229AQI (US)

3
1
30
28
2
61
3

Highest AQI (US) recorded in

October

42AQI (US)

Lowest AQI (US) recorded in

November

22AQI (US)

Most & Least Polluted Years Over the Last 5 Years

Most Polluted Year Recorded
2025(Avg.)
38AQI (US)
Least Polluted Year Recorded
2023(Avg.)
12AQI (US)

Biel Bienne's annual 2026 AQI (US) (34) shows an average percentage change of 83.2% (worsened AQI (US)) compared to previous years: 2022 (29), 2023 (12), 2024 (14), 2025 (38).