Country Background
HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Hefei, Anhui, China 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+

June Air Quality Analysis

Hefei, Anhui, China

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
2nd Jun 2026
120AQI
Lowest AQI recorded on
29th Jun 2024
21AQI

Same Day Analysis (2nd June):
On this day, AQI across the 5 years varied significantly: 2026 ranks 1st highest AQI at 120 of Poor air quality on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 1st Jun - 2nd Jun 2026

Hefei, Anhui, China

AQI
Day
Night
.

5 AM1st Jun 2026

7 PM

4 AM2nd Jun 2026

Day time
Avg. Highest Time
5AM1st Jun

149AQI

Avg. Lowest Time
7PM1st Jun

78AQI

Night time
Avg. Highest Time
4AM2nd Jun

144AQI

Avg. Lowest Time
8PM1st Jun

82AQI

In the last 24 hours,

Hefei's AQI reached its highest point of 149 at 5 AM during the Day, while the lowest point, 78, was recorded at 7 PM during the Day between 1st Jun and 2nd Jun 2026.

Day & Night AQI Trend : May - Jun 2026

Hefei, Anhui, China

MayJun
04th - 05th05th - 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
Day
Night
4th May 2026145 AMAQI
4th May 2026156 AMAQI
4th May 2026137 AMAQI
4th May 2026158 AMAQI
4th May 2026209 AMAQI
4th May 20262910 AMAQI
4th May 20262511 AMAQI
4th May 20262312 PMAQI
4th May 2026201 PMAQI
4th May 2026172 PMAQI
4th May 2026163 PMAQI
4th May 2026194 PMAQI
4th May 2026185 PMAQI
4th May 2026196 PMAQI
4th May 2026207 PMAQI
4th May 2026238 PMAQI
4th May 2026249 PMAQI
4th May 20262610 PMAQI
4th May 20262911 PMAQI
5th May 20263112 AMAQI
5th May 2026341 AMAQI
5th May 2026342 AMAQI
5th May 2026323 AMAQI
5th May 2026374 AMAQI

21°C15/27°C

5th May 2026465 AMAQI
5th May 2026516 AMAQI
5th May 2026487 AMAQI
5th May 2026528 AMAQI
5th May 2026519 AMAQI
5th May 20263710 AMAQI
5th May 20263611 AMAQI
5th May 20263912 PMAQI
5th May 2026381 PMAQI
5th May 2026342 PMAQI
5th May 2026333 PMAQI
5th May 2026294 PMAQI
5th May 2026295 PMAQI
5th May 2026316 PMAQI
5th May 2026307 PMAQI
5th May 2026358 PMAQI
5th May 2026469 PMAQI
5th May 20264810 PMAQI
5th May 20265011 PMAQI
6th May 20266212 AMAQI
6th May 2026661 AMAQI
6th May 2026632 AMAQI
6th May 2026663 AMAQI
6th May 2026704 AMAQI

22°C16/28°C

6th May 2026785 AMAQI
6th May 2026786 AMAQI
6th May 2026817 AMAQI
6th May 2026798 AMAQI
6th May 2026739 AMAQI
6th May 20266810 AMAQI
6th May 20266211 AMAQI
6th May 20265312 PMAQI
6th May 2026451 PMAQI
6th May 2026352 PMAQI
6th May 2026323 PMAQI
6th May 2026314 PMAQI
6th May 2026305 PMAQI
6th May 2026296 PMAQI
6th May 2026287 PMAQI
6th May 2026368 PMAQI
6th May 2026419 PMAQI
6th May 20265110 PMAQI
6th May 20265611 PMAQI
7th May 20266012 AMAQI
7th May 2026631 AMAQI
7th May 2026642 AMAQI
7th May 2026653 AMAQI
7th May 2026664 AMAQI

24°C18/29°C

7th May 2026705 AMAQI
7th May 2026736 AMAQI
7th May 2026777 AMAQI
7th May 2026798 AMAQI
7th May 2026729 AMAQI
7th May 20268410 AMAQI
7th May 202610311 AMAQI
7th May 202612112 PMAQI
7th May 20261171 PMAQI
7th May 20261162 PMAQI
7th May 20261203 PMAQI
7th May 20261414 PMAQI
7th May 20261065 PMAQI
7th May 2026696 PMAQI
7th May 2026427 PMAQI
7th May 2026338 PMAQI
7th May 2026399 PMAQI
7th May 20264310 PMAQI
7th May 20264511 PMAQI
8th May 20264012 AMAQI
8th May 2026331 AMAQI
8th May 2026302 AMAQI
8th May 2026293 AMAQI
8th May 2026314 AMAQI

21°C18/23°C

8th May 2026395 AMAQI
8th May 2026526 AMAQI
8th May 2026537 AMAQI
8th May 2026518 AMAQI
8th May 2026449 AMAQI
8th May 20264110 AMAQI
8th May 20263711 AMAQI
8th May 20263212 PMAQI
8th May 2026271 PMAQI
8th May 2026252 PMAQI
8th May 2026233 PMAQI
8th May 2026254 PMAQI
8th May 2026235 PMAQI
8th May 2026256 PMAQI
8th May 2026237 PMAQI
8th May 2026258 PMAQI
8th May 2026269 PMAQI
8th May 20262310 PMAQI
8th May 20262511 PMAQI
9th May 20263112 AMAQI
9th May 2026351 AMAQI
9th May 2026432 AMAQI
9th May 2026543 AMAQI
9th May 2026634 AMAQI

19°C15/22°C

9th May 2026665 AMAQI
9th May 2026636 AMAQI
9th May 2026617 AMAQI
9th May 2026558 AMAQI
9th May 2026509 AMAQI
9th May 20264410 AMAQI
9th May 20263911 AMAQI
9th May 20263212 PMAQI
9th May 2026261 PMAQI
9th May 2026242 PMAQI
9th May 2026233 PMAQI
9th May 2026244 PMAQI
9th May 2026255 PMAQI
9th May 2026316 PMAQI
9th May 2026357 PMAQI
9th May 2026518 PMAQI
9th May 2026569 PMAQI
9th May 20266310 PMAQI
9th May 20266811 PMAQI
10th May 20267412 AMAQI
10th May 2026781 AMAQI
10th May 2026752 AMAQI
10th May 2026663 AMAQI
10th May 2026654 AMAQI

20°C14/26°C

10th May 2026645 AMAQI
10th May 2026596 AMAQI
10th May 2026557 AMAQI
10th May 2026528 AMAQI
10th May 2026509 AMAQI
10th May 20265610 AMAQI
10th May 20266211 AMAQI
10th May 20266512 PMAQI
10th May 2026571 PMAQI
10th May 2026482 PMAQI
10th May 2026473 PMAQI
10th May 2026494 PMAQI
10th May 2026565 PMAQI
10th May 2026626 PMAQI
10th May 2026667 PMAQI
10th May 2026698 PMAQI
10th May 2026689 PMAQI
10th May 20267310 PMAQI
10th May 20267911 PMAQI
11th May 20268012 AMAQI
11th May 2026781 AMAQI
11th May 2026772 AMAQI
11th May 2026783 AMAQI
11th May 2026764 AMAQI

22°C16/29°C

11th May 2026845 AMAQI
11th May 2026896 AMAQI
11th May 2026897 AMAQI
11th May 2026898 AMAQI
11th May 2026909 AMAQI
11th May 20269110 AMAQI
11th May 20267911 AMAQI
11th May 20267612 PMAQI
11th May 2026731 PMAQI
11th May 2026702 PMAQI
11th May 2026573 PMAQI
11th May 2026544 PMAQI
11th May 2026525 PMAQI
11th May 2026526 PMAQI
11th May 2026527 PMAQI
11th May 2026528 PMAQI
11th May 2026529 PMAQI
11th May 20265210 PMAQI
11th May 20265611 PMAQI
12th May 20266212 AMAQI
12th May 2026701 AMAQI
12th May 2026722 AMAQI
12th May 2026763 AMAQI
12th May 20261074 AMAQI

25°C18/32°C

12th May 20261175 AMAQI
12th May 20261236 AMAQI
12th May 20261417 AMAQI
12th May 20261458 AMAQI
12th May 20261379 AMAQI
12th May 202612410 AMAQI
12th May 20269711 AMAQI
12th May 20267212 PMAQI
12th May 2026651 PMAQI
12th May 2026662 PMAQI
12th May 2026623 PMAQI
12th May 2026664 PMAQI
12th May 2026635 PMAQI
12th May 2026666 PMAQI
12th May 2026737 PMAQI
12th May 2026808 PMAQI
12th May 2026909 PMAQI
12th May 202610310 PMAQI
12th May 202610811 PMAQI
13th May 202611712 AMAQI
13th May 20261281 AMAQI
13th May 20261332 AMAQI
13th May 20261433 AMAQI
13th May 20261484 AMAQI

27°C22/33°C

13th May 20261455 AMAQI
13th May 20261466 AMAQI
13th May 20261497 AMAQI
13th May 20261528 AMAQI
13th May 20261519 AMAQI
13th May 202614810 AMAQI
13th May 202614711 AMAQI
13th May 202615312 PMAQI
13th May 20261521 PMAQI
13th May 20261262 PMAQI
13th May 20261063 PMAQI
13th May 2026994 PMAQI
13th May 2026825 PMAQI
13th May 2026646 PMAQI
13th May 2026587 PMAQI
13th May 2026578 PMAQI
13th May 2026649 PMAQI
13th May 20267210 PMAQI
13th May 20268011 PMAQI
14th May 20269212 AMAQI
14th May 20261101 AMAQI
14th May 20261362 AMAQI
14th May 20261413 AMAQI
14th May 20261454 AMAQI

27°C22/32°C

14th May 20261505 AMAQI
14th May 20261536 AMAQI
14th May 20261527 AMAQI
14th May 2026378 AMAQI
14th May 20261399 AMAQI
14th May 202611810 AMAQI
14th May 20269611 AMAQI
14th May 20269512 PMAQI
14th May 20261101 PMAQI
14th May 20261282 PMAQI
14th May 20261413 PMAQI
14th May 20261234 PMAQI
14th May 20261185 PMAQI
14th May 20261156 PMAQI
14th May 20261127 PMAQI
14th May 2026958 PMAQI
14th May 2026609 PMAQI
14th May 20265710 PMAQI
14th May 20265511 PMAQI
15th May 20265812 AMAQI
15th May 2026501 AMAQI
15th May 2026202 AMAQI
15th May 2026183 AMAQI
15th May 2026194 AMAQI

25°C22/28°C

15th May 2026245 AMAQI
15th May 2026276 AMAQI
15th May 2026327 AMAQI
15th May 2026388 AMAQI
15th May 2026389 AMAQI
15th May 20263310 AMAQI
15th May 20263211 AMAQI
15th May 20263712 PMAQI
15th May 2026291 PMAQI
15th May 2026302 PMAQI
15th May 2026313 PMAQI
15th May 2026284 PMAQI
15th May 2026275 PMAQI
15th May 2026296 PMAQI
15th May 2026287 PMAQI
15th May 2026358 PMAQI
15th May 2026509 PMAQI
15th May 20265610 PMAQI
15th May 20267711 PMAQI
16th May 20268712 AMAQI
16th May 2026791 AMAQI
16th May 2026832 AMAQI
16th May 2026723 AMAQI
16th May 2026684 AMAQI

23°C19/28°C

16th May 2026675 AMAQI
16th May 2026696 AMAQI
16th May 2026817 AMAQI
16th May 2026798 AMAQI
16th May 2026699 AMAQI
16th May 20267610 AMAQI
16th May 20267611 AMAQI
16th May 20268412 PMAQI
16th May 2026801 PMAQI
16th May 2026822 PMAQI
16th May 2026843 PMAQI
16th May 2026714 PMAQI
16th May 2026655 PMAQI
16th May 2026666 PMAQI
16th May 2026687 PMAQI
16th May 2026728 PMAQI
16th May 2026749 PMAQI
16th May 20267910 PMAQI
16th May 20267211 PMAQI
17th May 20266612 AMAQI
17th May 2026741 AMAQI
17th May 2026742 AMAQI
17th May 2026713 AMAQI
17th May 2026724 AMAQI

25°C20/31°C

17th May 2026705 AMAQI
17th May 2026706 AMAQI
17th May 2026667 AMAQI
17th May 2026628 AMAQI
17th May 2026569 AMAQI
17th May 20265610 AMAQI
17th May 20266011 AMAQI
17th May 20267212 PMAQI
17th May 2026651 PMAQI
17th May 2026602 PMAQI
17th May 2026593 PMAQI
17th May 2026634 PMAQI
17th May 2026565 PMAQI
17th May 2026576 PMAQI
17th May 2026537 PMAQI
17th May 2026538 PMAQI
17th May 2026579 PMAQI
17th May 20265110 PMAQI
17th May 20265411 PMAQI
18th May 20266412 AMAQI
18th May 2026581 AMAQI
18th May 2026532 AMAQI
18th May 2026573 AMAQI
18th May 2026614 AMAQI

26°C20/32°C

18th May 2026585 AMAQI
18th May 2026656 AMAQI
18th May 2026607 AMAQI
18th May 2026598 AMAQI
18th May 2026659 AMAQI
18th May 20266210 AMAQI
18th May 20265911 AMAQI
18th May 20265112 PMAQI
18th May 2026471 PMAQI
18th May 2026462 PMAQI
18th May 2026503 PMAQI
18th May 2026504 PMAQI
18th May 2026495 PMAQI
18th May 2026496 PMAQI
18th May 2026497 PMAQI
18th May 2026518 PMAQI
18th May 2026539 PMAQI
18th May 20265410 PMAQI
18th May 20265411 PMAQI
19th May 20265812 AMAQI
19th May 2026561 AMAQI
19th May 2026542 AMAQI
19th May 2026533 AMAQI
19th May 2026504 AMAQI

23°C20/25°C

19th May 2026515 AMAQI
19th May 2026476 AMAQI
19th May 2026537 AMAQI
19th May 2026558 AMAQI
19th May 2026559 AMAQI
19th May 20265510 AMAQI
19th May 20264411 AMAQI
19th May 20264012 PMAQI
19th May 2026401 PMAQI
19th May 2026392 PMAQI
19th May 2026433 PMAQI
19th May 2026424 PMAQI
19th May 2026455 PMAQI
19th May 2026506 PMAQI
19th May 2026577 PMAQI
19th May 2026648 PMAQI
19th May 2026649 PMAQI
19th May 20266810 PMAQI
19th May 20266711 PMAQI
20th May 20267012 AMAQI
20th May 2026711 AMAQI
20th May 2026732 AMAQI
20th May 2026753 AMAQI
20th May 2026784 AMAQI

21°C20/22°C

20th May 2026825 AMAQI
20th May 2026806 AMAQI
20th May 2026777 AMAQI
20th May 2026548 AMAQI
20th May 2026469 AMAQI
20th May 20264110 AMAQI
20th May 20264111 AMAQI
20th May 20264112 PMAQI
20th May 2026471 PMAQI
20th May 2026532 PMAQI
20th May 2026603 PMAQI
20th May 2026624 PMAQI
20th May 2026625 PMAQI
20th May 2026606 PMAQI
20th May 2026627 PMAQI
20th May 2026628 PMAQI
20th May 2026679 PMAQI
20th May 20267210 PMAQI
20th May 20266911 PMAQI
21st May 20266812 AMAQI
21st May 2026681 AMAQI
21st May 2026602 AMAQI
21st May 2026403 AMAQI
21st May 2026424 AMAQI

21°C19/24°C

21st May 2026365 AMAQI
21st May 2026626 AMAQI
21st May 2026727 AMAQI
21st May 2026788 AMAQI
21st May 2026749 AMAQI
21st May 20267310 AMAQI
21st May 20267311 AMAQI
21st May 20267312 PMAQI
21st May 2026731 PMAQI
21st May 2026782 PMAQI
21st May 2026803 PMAQI
21st May 2026774 PMAQI
21st May 2026805 PMAQI
21st May 2026776 PMAQI
21st May 2026747 PMAQI
21st May 2026768 PMAQI
21st May 2026759 PMAQI
21st May 20267510 PMAQI
21st May 20267111 PMAQI
22nd May 20268112 AMAQI
22nd May 2026801 AMAQI
22nd May 2026762 AMAQI
22nd May 2026823 AMAQI
22nd May 2026834 AMAQI

22°C17/27°C

22nd May 2026815 AMAQI
22nd May 2026766 AMAQI
22nd May 2026767 AMAQI
22nd May 2026718 AMAQI
22nd May 2026749 AMAQI
22nd May 20268010 AMAQI
22nd May 20268011 AMAQI
22nd May 20268012 PMAQI
22nd May 2026801 PMAQI
22nd May 2026802 PMAQI
22nd May 2026803 PMAQI
22nd May 2026804 PMAQI
22nd May 2026805 PMAQI
22nd May 2026806 PMAQI
22nd May 2026757 PMAQI
22nd May 2026768 PMAQI
22nd May 2026869 PMAQI
22nd May 20268910 PMAQI
22nd May 20268511 PMAQI
23rd May 20268512 AMAQI
23rd May 2026841 AMAQI
23rd May 2026852 AMAQI
23rd May 2026913 AMAQI
23rd May 2026774 AMAQI

24°C20/29°C

23rd May 2026705 AMAQI
23rd May 2026716 AMAQI
23rd May 2026697 AMAQI
23rd May 2026738 AMAQI
23rd May 2026709 AMAQI
23rd May 20266910 AMAQI
23rd May 20266911 AMAQI
23rd May 20266912 PMAQI
23rd May 2026691 PMAQI
23rd May 2026692 PMAQI
23rd May 2026663 PMAQI
23rd May 2026664 PMAQI
23rd May 2026685 PMAQI
23rd May 2026666 PMAQI
23rd May 2026687 PMAQI
23rd May 2026658 PMAQI
23rd May 2026649 PMAQI
23rd May 20267410 PMAQI
23rd May 20268011 PMAQI
24th May 20267112 AMAQI
24th May 2026751 AMAQI
24th May 2026782 AMAQI
24th May 2026793 AMAQI
24th May 2026794 AMAQI

27°C23/32°C

24th May 2026785 AMAQI
24th May 2026776 AMAQI
24th May 2026757 AMAQI
24th May 2026778 AMAQI
24th May 2026689 AMAQI
24th May 20266610 AMAQI
24th May 20266611 AMAQI
24th May 20266612 PMAQI
24th May 2026661 PMAQI
24th May 2026672 PMAQI
24th May 2026653 PMAQI
24th May 2026664 PMAQI
24th May 2026655 PMAQI
24th May 2026636 PMAQI
24th May 2026617 PMAQI
24th May 2026678 PMAQI
24th May 2026749 PMAQI
24th May 20267410 PMAQI
24th May 20266711 PMAQI
25th May 20267012 AMAQI
25th May 2026751 AMAQI
25th May 2026712 AMAQI
25th May 2026673 AMAQI
25th May 2026684 AMAQI

25°C23/28°C

25th May 2026675 AMAQI
25th May 2026726 AMAQI
25th May 2026707 AMAQI
25th May 2026738 AMAQI
25th May 2026669 AMAQI
25th May 20266810 AMAQI
25th May 20266811 AMAQI
25th May 20266812 PMAQI
25th May 2026681 PMAQI
25th May 2026612 PMAQI
25th May 2026583 PMAQI
25th May 2026584 PMAQI
25th May 2026555 PMAQI
25th May 2026576 PMAQI
25th May 2026597 PMAQI
25th May 2026718 PMAQI
25th May 2026669 PMAQI
25th May 20266010 PMAQI
25th May 20265811 PMAQI
26th May 20265412 AMAQI
26th May 2026551 AMAQI
26th May 2026512 AMAQI
26th May 2026483 AMAQI
26th May 2026484 AMAQI

26°C23/32°C

26th May 2026515 AMAQI
26th May 2026526 AMAQI
26th May 2026517 AMAQI
26th May 2026498 AMAQI
26th May 2026529 AMAQI
26th May 20265410 AMAQI
26th May 20265411 AMAQI
26th May 20265712 PMAQI
26th May 2026641 PMAQI
26th May 2026652 PMAQI
26th May 2026633 PMAQI
26th May 2026224 PMAQI
26th May 2026225 PMAQI
26th May 2026216 PMAQI
26th May 2026227 PMAQI
26th May 2026528 PMAQI
26th May 2026509 PMAQI
26th May 20264510 PMAQI
26th May 20263711 PMAQI
27th May 20263712 AMAQI
27th May 2026421 AMAQI
27th May 2026482 AMAQI
27th May 2026473 AMAQI
27th May 2026414 AMAQI

23°C20/25°C

27th May 2026335 AMAQI
27th May 2026346 AMAQI
27th May 2026267 AMAQI
27th May 2026208 AMAQI
27th May 2026129 AMAQI
27th May 20261010 AMAQI
27th May 2026911 AMAQI
27th May 20261012 PMAQI
27th May 2026101 PMAQI
27th May 2026132 PMAQI
27th May 2026263 PMAQI
27th May 2026364 PMAQI
27th May 2026425 PMAQI
27th May 2026396 PMAQI
27th May 2026397 PMAQI
27th May 2026478 PMAQI
27th May 2026509 PMAQI
27th May 20265410 PMAQI
27th May 20265711 PMAQI
28th May 20266212 AMAQI
28th May 2026651 AMAQI
28th May 2026682 AMAQI
28th May 2026723 AMAQI
28th May 2026714 AMAQI

22°C19/26°C

28th May 2026715 AMAQI
28th May 2026696 AMAQI
28th May 2026677 AMAQI
28th May 2026648 AMAQI
28th May 2026599 AMAQI
28th May 20264710 AMAQI
28th May 20264611 AMAQI
28th May 20263712 PMAQI
28th May 2026351 PMAQI
28th May 2026372 PMAQI
28th May 2026383 PMAQI
28th May 2026394 PMAQI
28th May 2026405 PMAQI
28th May 2026416 PMAQI
28th May 2026457 PMAQI
28th May 2026508 PMAQI
28th May 2026599 PMAQI
28th May 20267710 PMAQI
28th May 20268611 PMAQI
29th May 20267812 AMAQI
29th May 2026641 AMAQI
29th May 2026632 AMAQI
29th May 2026673 AMAQI
29th May 2026704 AMAQI

27°C22/32°C

29th May 2026735 AMAQI
29th May 2026706 AMAQI
29th May 2026647 AMAQI
29th May 2026568 AMAQI
29th May 2026649 AMAQI
29th May 20268010 AMAQI
29th May 202610011 AMAQI
29th May 202611412 PMAQI
29th May 20261061 PMAQI
29th May 2026992 PMAQI
29th May 2026773 PMAQI
29th May 2026604 PMAQI
29th May 2026675 PMAQI
29th May 2026656 PMAQI
29th May 2026677 PMAQI
29th May 2026708 PMAQI
29th May 2026749 PMAQI
29th May 20269710 PMAQI
29th May 202612111 PMAQI
30th May 202612212 AMAQI
30th May 20261291 AMAQI
30th May 20261272 AMAQI
30th May 20261343 AMAQI
30th May 20261344 AMAQI

26°C22/29°C

30th May 20261365 AMAQI
30th May 20261366 AMAQI
30th May 20261347 AMAQI
30th May 20261218 AMAQI
30th May 2026949 AMAQI
30th May 20267610 AMAQI
30th May 20266811 AMAQI
30th May 20266812 PMAQI
30th May 2026651 PMAQI
30th May 2026552 PMAQI
30th May 2026503 PMAQI
30th May 2026474 PMAQI
30th May 2026435 PMAQI
30th May 2026426 PMAQI
30th May 2026447 PMAQI
30th May 2026458 PMAQI
30th May 2026499 PMAQI
30th May 20265210 PMAQI
30th May 20266211 PMAQI
31st May 20269112 AMAQI
31st May 20261171 AMAQI
31st May 20261402 AMAQI
31st May 20261303 AMAQI
31st May 20261274 AMAQI

25°C22/29°C

31st May 20261305 AMAQI
31st May 20261356 AMAQI
31st May 20261377 AMAQI
31st May 20261378 AMAQI
31st May 20261229 AMAQI
31st May 20268910 AMAQI
31st May 20266111 AMAQI
31st May 20265212 PMAQI
31st May 2026451 PMAQI
31st May 2026412 PMAQI
31st May 2026373 PMAQI
31st May 2026354 PMAQI
31st May 2026345 PMAQI
31st May 2026366 PMAQI
31st May 2026497 PMAQI
31st May 2026608 PMAQI
31st May 2026679 PMAQI
31st May 20268010 PMAQI
31st May 202610111 PMAQI
1st Jun 202612312 AMAQI
1st Jun 20261381 AMAQI
1st Jun 20261492 AMAQI
1st Jun 20261503 AMAQI
1st Jun 20261484 AMAQI

25°C19/30°C

1st Jun 20261495 AMAQI
1st Jun 20261396 AMAQI
1st Jun 20261327 AMAQI
1st Jun 20261228 AMAQI
1st Jun 20261149 AMAQI
1st Jun 202610310 AMAQI
1st Jun 20269411 AMAQI
1st Jun 20269712 PMAQI
1st Jun 2026941 PMAQI
1st Jun 2026872 PMAQI
1st Jun 2026833 PMAQI
1st Jun 2026794 PMAQI
1st Jun 2026815 PMAQI
1st Jun 2026796 PMAQI
1st Jun 2026787 PMAQI
1st Jun 2026828 PMAQI
1st Jun 2026839 PMAQI
1st Jun 20269310 PMAQI
1st Jun 202610411 PMAQI
2nd Jun 202611212 AMAQI
2nd Jun 20261231 AMAQI
2nd Jun 20261312 AMAQI
2nd Jun 20261363 AMAQI
2nd Jun 20261444 AMAQI

27°C21/33°C

2nd Jun 20261475 AMAQI
5 AM
2nd Jun 20261516 AMAQI
2nd Jun 20261497 AMAQI
2nd Jun 20261498 AMAQI
2nd Jun 20261479 AMAQI
2nd Jun 202613610 AMAQI
2nd Jun 202612211 AMAQI
2nd Jun 202610312 PMAQI
12 PM
2nd Jun 2026891 PMAQI
2nd Jun 2026782 PMAQI
2nd Jun 2026753 PMAQI
2nd Jun 2026724 PMAQI
2nd Jun 2026835 PMAQI
2nd Jun 2026986 PMAQI
2nd Jun 20261137 PMAQI
7 PM
2nd Jun 20261188 PMAQI
2nd Jun 20261329 PMAQI
2nd Jun 202614010 PMAQI
2nd Jun 202614111 PMAQI
12 AM
4 AM

29°C24/33°C

Day time
Avg. Highest Time
5 AM - 7 AM

79AQI

3 hours / Day
90 hours / Month
Avg. Lowest Time
4 PM - 7 PM

56AQI

4 hours / Day
120 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 7 AM (Avg. 79), while the lowest AQI was between 4 PM to 7 PM (Avg. 56).
Night time
Avg. Highest Time
1 AM - 4 AM

75AQI

4 hours / Day
120 hours / Month
Avg. Lowest Time
8 PM

59AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 AM to 4 AM (Avg. 75), while the lowest AQI was between 8 PM to 8 PM (Avg. 59).

2026 Days Vs Air Quality

Hefei, Anhui, China

2026

14%

22

44%

68

37%

57

4%

6

Total number of days with different AQI categories in last 153 days in 2026 (212 days remaining)

Good
22 Days
Moderate
68 Days
Poor
57 Days
Unhealthy
6 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 14%

Health Risk Level:

Extreme

In 2026, 14% of 153 days were within WHO’s safe air quality limits. The risk of health issues is Extreme, potentially causing respiratory problems, heart disease, skin issues, and stress, especially for children, the elderly, and those with pre-existing conditions.

Annual Air Quality Insights

Hefei, Anhui, China

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
59AQI (US)
2nd January 2026
131AQI (US)
3rd January 2026
148AQI (US)
4th January 2026
154AQI (US)
5th January 2026
146AQI (US)
6th January 2026
121AQI (US)
7th January 2026
73AQI (US)
8th January 2026
110AQI (US)
9th January 2026
118AQI (US)
10th January 2026
111AQI (US)
11th January 2026
72AQI (US)
12th January 2026
93AQI (US)
13th January 2026
141AQI (US)
14th January 2026
132AQI (US)
15th January 2026
133AQI (US)
16th January 2026
142AQI (US)
17th January 2026
175AQI (US)
18th January 2026
159AQI (US)
19th January 2026
52AQI (US)
20th January 2026
80AQI (US)
21st January 2026
102AQI (US)
22nd January 2026
81AQI (US)
23rd January 2026
127AQI (US)
24th January 2026
151AQI (US)
25th January 2026
159AQI (US)
26th January 2026
115AQI (US)
27th January 2026
81AQI (US)
28th January 2026
134AQI (US)
29th January 2026
132AQI (US)
30th January 2026
66AQI (US)
31st January 2026
66AQI (US)
1st February 2026
81AQI (US)
2nd February 2026
95AQI (US)
3rd February 2026
146AQI (US)
4th February 2026
135AQI (US)
5th February 2026
134AQI (US)
6th February 2026
92AQI (US)
7th February 2026
60AQI (US)
8th February 2026
85AQI (US)
9th February 2026
71AQI (US)
10th February 2026
96AQI (US)
11th February 2026
108AQI (US)
12th February 2026
138AQI (US)
13th February 2026
120AQI (US)
14th February 2026
124AQI (US)
15th February 2026
118AQI (US)
16th February 2026
51AQI (US)
17th February 2026
144AQI (US)
18th February 2026
116AQI (US)
19th February 2026
123AQI (US)
20th February 2026
105AQI (US)
21st February 2026
69AQI (US)
22nd February 2026
72AQI (US)
23rd February 2026
80AQI (US)
24th February 2026
52AQI (US)
25th February 2026
69AQI (US)
26th February 2026
57AQI (US)
27th February 2026
46AQI (US)
28th February 2026
69AQI (US)
1st March 2026
61AQI (US)
2nd March 2026
27AQI (US)
3rd March 2026
106AQI (US)
4th March 2026
108AQI (US)
5th March 2026
104AQI (US)
6th March 2026
108AQI (US)
7th March 2026
97AQI (US)
8th March 2026
111AQI (US)
9th March 2026
132AQI (US)
10th March 2026
141AQI (US)
11th March 2026
116AQI (US)
12th March 2026
133AQI (US)
13th March 2026
137AQI (US)
14th March 2026
118AQI (US)
15th March 2026
139AQI (US)
16th March 2026
91AQI (US)
17th March 2026
107AQI (US)
18th March 2026
88AQI (US)
19th March 2026
116AQI (US)
20th March 2026
153AQI (US)
21st March 2026
147AQI (US)
22nd March 2026
105AQI (US)
23rd March 2026
120AQI (US)
24th March 2026
108AQI (US)
25th March 2026
120AQI (US)
26th March 2026
124AQI (US)
27th March 2026
130AQI (US)
28th March 2026
92AQI (US)
29th March 2026
96AQI (US)
30th March 2026
80AQI (US)
31st March 2026
149AQI (US)
1st April 2026
130AQI (US)
2nd April 2026
98AQI (US)
3rd April 2026
79AQI (US)
4th April 2026
63AQI (US)
5th April 2026
72AQI (US)
6th April 2026
97AQI (US)
7th April 2026
65AQI (US)
8th April 2026
40AQI (US)
9th April 2026
64AQI (US)
10th April 2026
50AQI (US)
11th April 2026
99AQI (US)
12th April 2026
46AQI (US)
13th April 2026
47AQI (US)
14th April 2026
44AQI (US)
15th April 2026
78AQI (US)
16th April 2026
104AQI (US)
17th April 2026
103AQI (US)
18th April 2026
82AQI (US)
19th April 2026
75AQI (US)
20th April 2026
48AQI (US)
21st April 2026
58AQI (US)
22nd April 2026
17AQI (US)
23rd April 2026
17AQI (US)
24th April 2026
51AQI (US)
25th April 2026
59AQI (US)
26th April 2026
59AQI (US)
27th April 2026
78AQI (US)
28th April 2026
49AQI (US)
29th April 2026
36AQI (US)
30th April 2026
45AQI (US)
1st May 2026
42AQI (US)
2nd May 2026
58AQI (US)
3rd May 2026
48AQI (US)
4th May 2026
21AQI (US)
5th May 2026
39AQI (US)
6th May 2026
55AQI (US)
7th May 2026
78AQI (US)
8th May 2026
33AQI (US)
9th May 2026
44AQI (US)
10th May 2026
62AQI (US)
11th May 2026
70AQI (US)
12th May 2026
91AQI (US)
13th May 2026
117AQI (US)
14th May 2026
112AQI (US)
15th May 2026
35AQI (US)
16th May 2026
75AQI (US)
17th May 2026
62AQI (US)
18th May 2026
55AQI (US)
19th May 2026
52AQI (US)
20th May 2026
63AQI (US)
21st May 2026
69AQI (US)
22nd May 2026
79AQI (US)
23rd May 2026
72AQI (US)
24th May 2026
71AQI (US)
25th May 2026
66AQI (US)
26th May 2026
47AQI (US)
27th May 2026
33AQI (US)
28th May 2026
56AQI (US)
29th May 2026
78AQI (US)
30th May 2026
85AQI (US)
31st May 2026
86AQI (US)
1st June 2026
108AQI (US)
2nd June 2026
120AQI (US)
3rd June 2026
4th June 2026
5th June 2026
6th June 2026
7th June 2026
8th June 2026
9th June 2026
10th June 2026
11th June 2026
12th June 2026
13th June 2026
14th June 2026
15th June 2026
16th June 2026
17th June 2026
18th June 2026
19th June 2026
20th June 2026
21st June 2026
22nd June 2026
23rd June 2026
24th June 2026
25th June 2026
26th June 2026
27th June 2026
28th June 2026
29th June 2026
30th June 2026
1st July 2026
2nd July 2026
3rd July 2026
4th July 2026
5th July 2026
6th July 2026
7th July 2026
8th July 2026
9th July 2026
10th July 2026
11th July 2026
12th July 2026
13th July 2026
14th July 2026
15th July 2026
16th July 2026
17th July 2026
18th July 2026
19th July 2026
20th July 2026
21st July 2026
22nd July 2026
23rd July 2026
24th July 2026
25th July 2026
26th July 2026
27th July 2026
28th July 2026
29th July 2026
30th July 2026
31st July 2026
1st August 2026
2nd August 2026
3rd August 2026
4th August 2026
5th August 2026
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

115AQI (US)

95AQI (US)

112AQI (US)

65AQI (US)

63AQI (US)

114AQI (US)

No. of days

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

202690AQI (US)

10
16
5
1
15
12
1
7
22
1
11
16
3
9
20
2
2
22
68
57
6

Highest AQI (US) recorded in

January

115AQI (US)

Lowest AQI (US) recorded in

May

63AQI (US)

202592AQI (US)

5
17
9
6
19
3
14
16
1
16
13
1
20
11
9
21
10
21
5
26
7
23
2
18
11
10
16
4
10
11
10
33
190
114
27
1

Highest AQI (US) recorded in

January

131AQI (US)

Lowest AQI (US) recorded in

August

54AQI (US)

202492AQI (US)

1
6
12
11
1
3
9
13
3
1
10
17
4
16
14
22
9
6
23
1
17
14
4
27
7
23
8
12
9
2
3
18
8
1
1
25
5
49
181
108
26
2

Highest AQI (US) recorded in

January

135AQI (US)

Lowest AQI (US) recorded in

July

50AQI (US)

202397AQI (US)

8
15
8
1
10
13
4
1
7
19
4
17
12
1
1
19
10
1
2
27
1
11
20
1
30
5
21
4
2
12
14
3
1
11
13
1
2
9
13
5
2
27
191
114
26
3

Highest AQI (US) recorded in

January

128AQI (US)

Lowest AQI (US) recorded in

July

56AQI (US)

202292AQI (US)

1
5
10
14
8
11
2
5
14
11
1
25
5
1
24
6
6
23
1
7
18
2
1
3
23
3
4
21
6
1
11
16
2
9
13
9
28
183
83
28

Highest AQI (US) recorded in

January

136AQI (US)

Lowest AQI (US) recorded in

July

57AQI (US)

202192AQI (US)

6
15
9
1
1
13
10
4
13
15
3
20
8
2
1
22
8
3
22
5
15
16
7
22
2
4
26
5
16
10
1
16
10
3
9
14
8
37
201
97
29
1

Highest AQI (US) recorded in

January

133AQI (US)

Lowest AQI (US) recorded in

July

51AQI (US)

202090AQI (US)

2
9
2
16
5
15
3
8
21
1
8
18
5
11
20
26
4
2
17
12
13
17
4
8
19
31
159
57
19

Highest AQI (US) recorded in

December

144AQI (US)

Lowest AQI (US) recorded in

August

61AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2023(Avg.)
97AQI (US)
Least Polluted Year Recorded
2020(Avg.)
90AQI (US)

Hefei's annual 2026 AQI (US) (90) shows an average percentage change of -2.6% (improved AQI (US)) compared to previous years: 2020 (90), 2021 (92), 2022 (92), 2023 (97), 2024 (92), 2025 (92).