Ha Long, Quang Ninh, Vietnam 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
Ha Long, Quang Ninh, Vietnam
2022
2023
2024
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
18th Aug 2023
75AQILowest AQI recorded on
6th Aug 2023
13AQISame Day Analysis (7th August):
On this day, AQI across the 5 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: 7th Aug - 8th Aug 2026
Ha Long, Quang Ninh, Vietnam
AQI
Day
Night
.
5 AM7th Aug 2026
6 PM
4 AM8th Aug 2026
Day time
Avg. Highest Time
12PM7th Aug
55AQI
Avg. Lowest Time
7AM7th Aug
32AQI
Night time
Avg. Highest Time
4AM8th Aug
52AQI
Avg. Lowest Time
8PM7th Aug
46AQI
In the last 24 hours,
Ha Long's AQI reached its highest point of 55 at 12 PM during the Day, while the lowest point, 32, was recorded at 7 AM during the Day between 7th Aug and 8th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Ha Long, Quang Ninh, Vietnam
JulAug
10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th
Day
Night
10th Jul 2026205 AMAQI
10th Jul 2026146 AMAQI
10th Jul 2026147 AMAQI
10th Jul 2026208 AMAQI
10th Jul 2026359 AMAQI
10th Jul 20262810 AMAQI
10th Jul 20264611 AMAQI
10th Jul 20263812 PMAQI
10th Jul 2026341 PMAQI
10th Jul 2026232 PMAQI
10th Jul 2026313 PMAQI
10th Jul 2026354 PMAQI
10th Jul 2026415 PMAQI
10th Jul 2026276 PMAQI
10th Jul 2026267 PMAQI
10th Jul 2026318 PMAQI
10th Jul 2026409 PMAQI
10th Jul 20263910 PMAQI
10th Jul 20263211 PMAQI
11th Jul 20262812 AMAQI
11th Jul 2026491 AMAQI
11th Jul 2026602 AMAQI
11th Jul 2026693 AMAQI
11th Jul 2026784 AMAQI
28°C26/31°C
11th Jul 2026715 AMAQI
11th Jul 2026706 AMAQI
11th Jul 2026837 AMAQI
11th Jul 2026838 AMAQI
11th Jul 2026889 AMAQI
11th Jul 20268710 AMAQI
11th Jul 20268911 AMAQI
11th Jul 20267812 PMAQI
11th Jul 2026761 PMAQI
11th Jul 2026862 PMAQI
11th Jul 2026913 PMAQI
11th Jul 2026794 PMAQI
11th Jul 2026825 PMAQI
11th Jul 2026856 PMAQI
11th Jul 2026887 PMAQI
11th Jul 2026848 PMAQI
11th Jul 2026899 PMAQI
11th Jul 20269110 PMAQI
11th Jul 20269011 PMAQI
12th Jul 20269412 AMAQI
12th Jul 2026961 AMAQI
12th Jul 2026892 AMAQI
12th Jul 2026913 AMAQI
12th Jul 2026924 AMAQI
28°C26/32°C
12th Jul 2026915 AMAQI
12th Jul 20261006 AMAQI
12th Jul 20261007 AMAQI
12th Jul 20261038 AMAQI
12th Jul 2026909 AMAQI
12th Jul 20268410 AMAQI
12th Jul 20268411 AMAQI
12th Jul 20268312 PMAQI
12th Jul 2026801 PMAQI
12th Jul 2026752 PMAQI
12th Jul 2026763 PMAQI
12th Jul 2026824 PMAQI
12th Jul 2026775 PMAQI
12th Jul 2026696 PMAQI
12th Jul 2026687 PMAQI
12th Jul 2026658 PMAQI
12th Jul 2026699 PMAQI
12th Jul 20268110 PMAQI
12th Jul 20268911 PMAQI
13th Jul 20268812 AMAQI
13th Jul 2026861 AMAQI
13th Jul 2026802 AMAQI
13th Jul 2026803 AMAQI
13th Jul 2026824 AMAQI
28°C26/31°C
13th Jul 2026825 AMAQI
13th Jul 2026816 AMAQI
13th Jul 2026847 AMAQI
13th Jul 2026858 AMAQI
13th Jul 2026789 AMAQI
13th Jul 20264210 AMAQI
13th Jul 20263511 AMAQI
13th Jul 20262812 PMAQI
13th Jul 2026231 PMAQI
13th Jul 2026182 PMAQI
13th Jul 2026173 PMAQI
13th Jul 2026104 PMAQI
13th Jul 2026105 PMAQI
13th Jul 2026286 PMAQI
13th Jul 2026307 PMAQI
13th Jul 2026288 PMAQI
13th Jul 2026269 PMAQI
13th Jul 20261710 PMAQI
13th Jul 20263111 PMAQI
14th Jul 20262612 AMAQI
14th Jul 2026191 AMAQI
14th Jul 2026152 AMAQI
14th Jul 2026173 AMAQI
14th Jul 2026174 AMAQI
29°C26/32°C
14th Jul 2026225 AMAQI
14th Jul 2026246 AMAQI
14th Jul 2026277 AMAQI
14th Jul 2026238 AMAQI
14th Jul 2026229 AMAQI
14th Jul 20262110 AMAQI
14th Jul 20262011 AMAQI
14th Jul 20262012 PMAQI
14th Jul 2026211 PMAQI
14th Jul 2026232 PMAQI
14th Jul 2026243 PMAQI
14th Jul 2026304 PMAQI
14th Jul 2026225 PMAQI
14th Jul 2026306 PMAQI
14th Jul 2026337 PMAQI
14th Jul 2026308 PMAQI
14th Jul 2026339 PMAQI
14th Jul 20263410 PMAQI
14th Jul 20262611 PMAQI
15th Jul 20262812 AMAQI
15th Jul 2026301 AMAQI
15th Jul 2026262 AMAQI
15th Jul 2026303 AMAQI
15th Jul 2026264 AMAQI
29°C26/32°C
15th Jul 2026305 AMAQI
15th Jul 2026306 AMAQI
15th Jul 2026297 AMAQI
15th Jul 2026318 AMAQI
15th Jul 2026299 AMAQI
15th Jul 20262910 AMAQI
15th Jul 20262511 AMAQI
15th Jul 20262412 PMAQI
15th Jul 2026231 PMAQI
15th Jul 2026242 PMAQI
15th Jul 2026273 PMAQI
15th Jul 2026284 PMAQI
15th Jul 2026265 PMAQI
15th Jul 2026296 PMAQI
15th Jul 2026297 PMAQI
15th Jul 2026328 PMAQI
15th Jul 2026359 PMAQI
15th Jul 20263110 PMAQI
15th Jul 20263111 PMAQI
16th Jul 20263112 AMAQI
16th Jul 2026321 AMAQI
16th Jul 2026302 AMAQI
16th Jul 2026323 AMAQI
16th Jul 2026314 AMAQI
28°C27/29°C
16th Jul 2026305 AMAQI
16th Jul 2026306 AMAQI
16th Jul 2026327 AMAQI
16th Jul 2026338 AMAQI
16th Jul 2026309 AMAQI
16th Jul 20262910 AMAQI
16th Jul 20262711 AMAQI
16th Jul 20262712 PMAQI
16th Jul 2026261 PMAQI
16th Jul 2026262 PMAQI
16th Jul 2026283 PMAQI
16th Jul 2026304 PMAQI
16th Jul 2026295 PMAQI
16th Jul 2026306 PMAQI
16th Jul 2026327 PMAQI
16th Jul 2026328 PMAQI
16th Jul 2026329 PMAQI
16th Jul 20263210 PMAQI
16th Jul 20263211 PMAQI
17th Jul 20263212 AMAQI
17th Jul 2026311 AMAQI
17th Jul 2026322 AMAQI
17th Jul 2026323 AMAQI
17th Jul 2026324 AMAQI
29°C27/32°C
17th Jul 2026315 AMAQI
17th Jul 2026296 AMAQI
17th Jul 2026317 AMAQI
17th Jul 2026368 AMAQI
17th Jul 2026319 AMAQI
17th Jul 20263210 AMAQI
17th Jul 20262911 AMAQI
17th Jul 20263012 PMAQI
17th Jul 2026291 PMAQI
17th Jul 2026512 PMAQI
17th Jul 2026483 PMAQI
17th Jul 2026424 PMAQI
17th Jul 2026395 PMAQI
17th Jul 2026406 PMAQI
17th Jul 2026417 PMAQI
17th Jul 2026508 PMAQI
17th Jul 2026469 PMAQI
17th Jul 20265110 PMAQI
17th Jul 20265111 PMAQI
18th Jul 20264612 AMAQI
18th Jul 2026461 AMAQI
18th Jul 2026462 AMAQI
18th Jul 2026433 AMAQI
18th Jul 2026434 AMAQI
29°C27/32°C
18th Jul 2026435 AMAQI
18th Jul 2026416 AMAQI
18th Jul 2026387 AMAQI
18th Jul 2026388 AMAQI
18th Jul 2026589 AMAQI
18th Jul 20265410 AMAQI
18th Jul 20265011 AMAQI
18th Jul 20264812 PMAQI
18th Jul 2026501 PMAQI
18th Jul 2026562 PMAQI
18th Jul 2026413 PMAQI
18th Jul 2026374 PMAQI
18th Jul 2026375 PMAQI
18th Jul 2026386 PMAQI
18th Jul 2026447 PMAQI
18th Jul 2026458 PMAQI
18th Jul 2026469 PMAQI
18th Jul 20264810 PMAQI
18th Jul 20264911 PMAQI
19th Jul 20264612 AMAQI
19th Jul 2026431 AMAQI
19th Jul 2026432 AMAQI
19th Jul 2026423 AMAQI
19th Jul 2026384 AMAQI
29°C27/32°C
19th Jul 2026395 AMAQI
19th Jul 2026346 AMAQI
19th Jul 2026337 AMAQI
19th Jul 2026288 AMAQI
19th Jul 2026339 AMAQI
19th Jul 20262810 AMAQI
19th Jul 20262711 AMAQI
19th Jul 20262712 PMAQI
19th Jul 2026281 PMAQI
19th Jul 2026302 PMAQI
19th Jul 2026313 PMAQI
19th Jul 2026454 PMAQI
19th Jul 2026265 PMAQI
19th Jul 2026266 PMAQI
19th Jul 2026297 PMAQI
19th Jul 2026318 PMAQI
19th Jul 2026349 PMAQI
19th Jul 20265110 PMAQI
19th Jul 20265111 PMAQI
20th Jul 20265312 AMAQI
20th Jul 2026521 AMAQI
20th Jul 2026492 AMAQI
20th Jul 2026483 AMAQI
20th Jul 2026534 AMAQI
29°C27/32°C
20th Jul 2026575 AMAQI
20th Jul 2026616 AMAQI
20th Jul 2026647 AMAQI
20th Jul 2026648 AMAQI
20th Jul 2026729 AMAQI
20th Jul 20267310 AMAQI
20th Jul 20267511 AMAQI
20th Jul 20267112 PMAQI
20th Jul 2026581 PMAQI
20th Jul 2026522 PMAQI
20th Jul 2026453 PMAQI
20th Jul 2026424 PMAQI
20th Jul 2026375 PMAQI
20th Jul 2026406 PMAQI
20th Jul 2026427 PMAQI
20th Jul 2026498 PMAQI
20th Jul 2026559 PMAQI
20th Jul 20266010 PMAQI
20th Jul 20266511 PMAQI
21st Jul 20267112 AMAQI
21st Jul 2026631 AMAQI
21st Jul 2026522 AMAQI
21st Jul 2026543 AMAQI
21st Jul 2026614 AMAQI
28°C26/31°C
21st Jul 2026585 AMAQI
21st Jul 2026576 AMAQI
21st Jul 2026637 AMAQI
21st Jul 2026708 AMAQI
21st Jul 2026769 AMAQI
21st Jul 20268111 AMAQI
21st Jul 20267912 PMAQI
21st Jul 2026781 PMAQI
21st Jul 2026732 PMAQI
21st Jul 2026633 PMAQI
21st Jul 2026544 PMAQI
21st Jul 2026935 PMAQI
21st Jul 2026436 PMAQI
21st Jul 2026427 PMAQI
21st Jul 2026448 PMAQI
21st Jul 2026489 PMAQI
21st Jul 20265310 PMAQI
21st Jul 20265911 PMAQI
22nd Jul 20266212 AMAQI
22nd Jul 2026631 AMAQI
22nd Jul 2026612 AMAQI
22nd Jul 2026543 AMAQI
22nd Jul 2026494 AMAQI
26°C25/28°C
22nd Jul 2026485 AMAQI
22nd Jul 2026446 AMAQI
22nd Jul 2026527 AMAQI
22nd Jul 2026518 AMAQI
22nd Jul 2026439 AMAQI
22nd Jul 20264210 AMAQI
22nd Jul 20264211 AMAQI
22nd Jul 20264612 PMAQI
22nd Jul 2026531 PMAQI
22nd Jul 2026442 PMAQI
22nd Jul 2026323 PMAQI
22nd Jul 2026334 PMAQI
22nd Jul 2026445 PMAQI
22nd Jul 2026466 PMAQI
22nd Jul 2026437 PMAQI
22nd Jul 2026418 PMAQI
22nd Jul 2026429 PMAQI
22nd Jul 20263610 PMAQI
22nd Jul 20263011 PMAQI
23rd Jul 20263212 AMAQI
23rd Jul 2026351 AMAQI
23rd Jul 2026302 AMAQI
23rd Jul 2026333 AMAQI
23rd Jul 2026394 AMAQI
28°C25/31°C
23rd Jul 2026555 AMAQI
23rd Jul 2026396 AMAQI
23rd Jul 2026417 AMAQI
23rd Jul 2026278 AMAQI
23rd Jul 2026309 AMAQI
23rd Jul 20263710 AMAQI
23rd Jul 20263311 AMAQI
23rd Jul 20263212 PMAQI
23rd Jul 2026321 PMAQI
23rd Jul 2026342 PMAQI
23rd Jul 2026343 PMAQI
23rd Jul 2026354 PMAQI
23rd Jul 2026345 PMAQI
23rd Jul 2026366 PMAQI
23rd Jul 2026357 PMAQI
23rd Jul 2026348 PMAQI
23rd Jul 2026329 PMAQI
23rd Jul 20263810 PMAQI
23rd Jul 20263311 PMAQI
24th Jul 20263312 AMAQI
24th Jul 2026421 AMAQI
24th Jul 2026312 AMAQI
24th Jul 2026283 AMAQI
24th Jul 2026304 AMAQI
28°C26/30°C
24th Jul 2026285 AMAQI
24th Jul 2026256 AMAQI
24th Jul 2026227 AMAQI
24th Jul 2026318 AMAQI
24th Jul 2026469 AMAQI
24th Jul 20265110 AMAQI
24th Jul 20264711 AMAQI
24th Jul 20264912 PMAQI
24th Jul 2026471 PMAQI
24th Jul 2026432 PMAQI
24th Jul 2026403 PMAQI
24th Jul 2026454 PMAQI
24th Jul 2026445 PMAQI
24th Jul 2026456 PMAQI
24th Jul 2026577 PMAQI
24th Jul 2026658 PMAQI
24th Jul 2026689 PMAQI
24th Jul 20267110 PMAQI
24th Jul 20266911 PMAQI
25th Jul 20266412 AMAQI
25th Jul 2026571 AMAQI
25th Jul 2026582 AMAQI
25th Jul 2026603 AMAQI
25th Jul 2026614 AMAQI
28°C26/30°C
25th Jul 2026615 AMAQI
25th Jul 2026536 AMAQI
25th Jul 2026487 AMAQI
25th Jul 2026398 AMAQI
25th Jul 2026349 AMAQI
25th Jul 20264010 AMAQI
25th Jul 20263711 AMAQI
25th Jul 20264112 PMAQI
25th Jul 2026461 PMAQI
25th Jul 2026492 PMAQI
25th Jul 2026493 PMAQI
25th Jul 2026504 PMAQI
25th Jul 2026585 PMAQI
25th Jul 2026626 PMAQI
25th Jul 2026677 PMAQI
25th Jul 2026698 PMAQI
25th Jul 2026739 PMAQI
25th Jul 20266910 PMAQI
25th Jul 20267111 PMAQI
26th Jul 20267312 AMAQI
26th Jul 2026681 AMAQI
26th Jul 2026622 AMAQI
26th Jul 2026583 AMAQI
26th Jul 2026584 AMAQI
28°C25/32°C
26th Jul 2026615 AMAQI
26th Jul 2026616 AMAQI
26th Jul 2026627 AMAQI
26th Jul 2026678 AMAQI
26th Jul 2026709 AMAQI
26th Jul 20267310 AMAQI
26th Jul 20267711 AMAQI
26th Jul 20267812 PMAQI
26th Jul 2026731 PMAQI
26th Jul 2026662 PMAQI
26th Jul 2026633 PMAQI
26th Jul 2026614 PMAQI
26th Jul 2026595 PMAQI
26th Jul 2026576 PMAQI
26th Jul 2026647 PMAQI
26th Jul 2026578 PMAQI
26th Jul 2026579 PMAQI
26th Jul 20266510 PMAQI
26th Jul 20266311 PMAQI
27th Jul 20266312 AMAQI
27th Jul 2026621 AMAQI
27th Jul 2026552 AMAQI
27th Jul 2026513 AMAQI
27th Jul 2026474 AMAQI
29°C25/33°C
27th Jul 2026465 AMAQI
27th Jul 2026486 AMAQI
27th Jul 2026487 AMAQI
27th Jul 2026458 AMAQI
27th Jul 2026539 AMAQI
27th Jul 20265310 AMAQI
27th Jul 20265311 AMAQI
27th Jul 20265512 PMAQI
27th Jul 2026531 PMAQI
27th Jul 2026412 PMAQI
27th Jul 2026333 PMAQI
27th Jul 2026264 PMAQI
27th Jul 2026375 PMAQI
27th Jul 2026396 PMAQI
27th Jul 2026387 PMAQI
27th Jul 2026418 PMAQI
27th Jul 2026419 PMAQI
27th Jul 20265110 PMAQI
27th Jul 20265011 PMAQI
28th Jul 20265012 AMAQI
28th Jul 2026511 AMAQI
28th Jul 2026442 AMAQI
28th Jul 2026343 AMAQI
28th Jul 2026294 AMAQI
29°C27/31°C
28th Jul 2026255 AMAQI
28th Jul 2026326 AMAQI
28th Jul 2026487 AMAQI
28th Jul 2026378 AMAQI
28th Jul 2026379 AMAQI
28th Jul 20264410 AMAQI
28th Jul 20263611 AMAQI
28th Jul 20263912 PMAQI
28th Jul 2026361 PMAQI
28th Jul 2026412 PMAQI
28th Jul 2026383 PMAQI
28th Jul 2026354 PMAQI
28th Jul 2026385 PMAQI
28th Jul 2026356 PMAQI
28th Jul 2026347 PMAQI
28th Jul 2026348 PMAQI
28th Jul 2026379 PMAQI
28th Jul 20264210 PMAQI
28th Jul 20264111 PMAQI
29th Jul 20264512 AMAQI
29th Jul 2026431 AMAQI
29th Jul 2026472 AMAQI
29th Jul 2026553 AMAQI
29th Jul 2026584 AMAQI
27°C27/29°C
29th Jul 2026465 AMAQI
29th Jul 2026546 AMAQI
29th Jul 2026597 AMAQI
29th Jul 2026448 AMAQI
29th Jul 2026379 AMAQI
29th Jul 20262610 AMAQI
29th Jul 20263011 AMAQI
29th Jul 20264412 PMAQI
29th Jul 2026531 PMAQI
29th Jul 2026462 PMAQI
29th Jul 2026393 PMAQI
29th Jul 2026354 PMAQI
29th Jul 2026385 PMAQI
29th Jul 2026386 PMAQI
29th Jul 2026467 PMAQI
29th Jul 2026508 PMAQI
29th Jul 2026519 PMAQI
29th Jul 20265310 PMAQI
29th Jul 20264811 PMAQI
30th Jul 20265312 AMAQI
30th Jul 2026611 AMAQI
30th Jul 2026612 AMAQI
30th Jul 2026633 AMAQI
30th Jul 2026664 AMAQI
28°C26/31°C
30th Jul 2026705 AMAQI
30th Jul 2026716 AMAQI
30th Jul 2026737 AMAQI
30th Jul 2026688 AMAQI
30th Jul 2026649 AMAQI
30th Jul 20265610 AMAQI
30th Jul 20264611 AMAQI
30th Jul 20264212 PMAQI
30th Jul 2026391 PMAQI
30th Jul 2026392 PMAQI
30th Jul 2026323 PMAQI
30th Jul 2026294 PMAQI
30th Jul 2026305 PMAQI
30th Jul 2026316 PMAQI
30th Jul 2026427 PMAQI
30th Jul 2026438 PMAQI
30th Jul 2026459 PMAQI
30th Jul 20265210 PMAQI
30th Jul 20265311 PMAQI
31st Jul 20265112 AMAQI
31st Jul 2026541 AMAQI
31st Jul 2026472 AMAQI
31st Jul 2026443 AMAQI
31st Jul 2026404 AMAQI
27°C26/29°C
31st Jul 2026435 AMAQI
31st Jul 2026256 AMAQI
31st Jul 2026287 AMAQI
31st Jul 2026248 AMAQI
31st Jul 2026269 AMAQI
31st Jul 20263810 AMAQI
31st Jul 20264211 AMAQI
31st Jul 20263612 PMAQI
31st Jul 2026351 PMAQI
31st Jul 2026362 PMAQI
31st Jul 2026413 PMAQI
31st Jul 2026414 PMAQI
31st Jul 2026415 PMAQI
31st Jul 2026386 PMAQI
31st Jul 2026397 PMAQI
31st Jul 2026448 PMAQI
31st Jul 2026529 PMAQI
31st Jul 20265510 PMAQI
31st Jul 20264911 PMAQI
1st Aug 20264012 AMAQI
1st Aug 2026331 AMAQI
1st Aug 2026272 AMAQI
1st Aug 2026253 AMAQI
1st Aug 2026244 AMAQI
27°C25/29°C
1st Aug 2026305 AMAQI
1st Aug 2026366 AMAQI
1st Aug 2026327 AMAQI
1st Aug 2026358 AMAQI
1st Aug 2026469 AMAQI
1st Aug 20264810 AMAQI
1st Aug 20265611 AMAQI
1st Aug 20265512 PMAQI
1st Aug 2026461 PMAQI
1st Aug 2026412 PMAQI
1st Aug 2026303 PMAQI
1st Aug 2026294 PMAQI
1st Aug 2026405 PMAQI
1st Aug 2026396 PMAQI
1st Aug 2026437 PMAQI
1st Aug 2026438 PMAQI
1st Aug 2026469 PMAQI
1st Aug 20264110 PMAQI
1st Aug 20263411 PMAQI
2nd Aug 20263312 AMAQI
2nd Aug 2026291 AMAQI
2nd Aug 2026272 AMAQI
2nd Aug 2026293 AMAQI
2nd Aug 2026324 AMAQI
27°C25/29°C
2nd Aug 2026395 AMAQI
2nd Aug 2026396 AMAQI
2nd Aug 2026437 AMAQI
2nd Aug 2026458 AMAQI
2nd Aug 2026559 AMAQI
2nd Aug 20266010 AMAQI
2nd Aug 20265811 AMAQI
2nd Aug 20265512 PMAQI
2nd Aug 2026441 PMAQI
2nd Aug 2026402 PMAQI
2nd Aug 2026473 PMAQI
2nd Aug 2026484 PMAQI
2nd Aug 2026415 PMAQI
2nd Aug 2026416 PMAQI
2nd Aug 2026427 PMAQI
2nd Aug 2026438 PMAQI
2nd Aug 2026539 PMAQI
2nd Aug 20266110 PMAQI
2nd Aug 20265311 PMAQI
3rd Aug 20265012 AMAQI
3rd Aug 2026531 AMAQI
3rd Aug 2026512 AMAQI
3rd Aug 2026513 AMAQI
3rd Aug 2026514 AMAQI
27°C26/29°C
3rd Aug 2026575 AMAQI
3rd Aug 2026556 AMAQI
3rd Aug 2026567 AMAQI
3rd Aug 2026528 AMAQI
3rd Aug 2026559 AMAQI
3rd Aug 20265310 AMAQI
3rd Aug 20265711 AMAQI
3rd Aug 20265412 PMAQI
3rd Aug 2026541 PMAQI
3rd Aug 2026492 PMAQI
3rd Aug 2026493 PMAQI
3rd Aug 2026444 PMAQI
3rd Aug 2026455 PMAQI
3rd Aug 2026446 PMAQI
3rd Aug 2026487 PMAQI
3rd Aug 2026518 PMAQI
3rd Aug 2026549 PMAQI
3rd Aug 20266110 PMAQI
3rd Aug 20265211 PMAQI
4th Aug 20264912 AMAQI
4th Aug 2026411 AMAQI
4th Aug 2026412 AMAQI
4th Aug 2026453 AMAQI
4th Aug 2026434 AMAQI
28°C27/31°C
4th Aug 2026395 AMAQI
4th Aug 2026456 AMAQI
4th Aug 2026407 AMAQI
4th Aug 2026378 AMAQI
4th Aug 2026459 AMAQI
4th Aug 20265310 AMAQI
4th Aug 20265411 AMAQI
4th Aug 20265812 PMAQI
4th Aug 2026541 PMAQI
4th Aug 2026522 PMAQI
4th Aug 2026543 PMAQI
4th Aug 2026564 PMAQI
4th Aug 2026545 PMAQI
4th Aug 2026556 PMAQI
4th Aug 2026577 PMAQI
4th Aug 2026628 PMAQI
4th Aug 2026549 PMAQI
4th Aug 20266010 PMAQI
4th Aug 20266111 PMAQI
5th Aug 20265712 AMAQI
5th Aug 2026501 AMAQI
5th Aug 2026382 AMAQI
5th Aug 2026363 AMAQI
5th Aug 2026394 AMAQI
28°C26/30°C
5th Aug 2026445 AMAQI
5th Aug 2026506 AMAQI
5th Aug 2026547 AMAQI
5th Aug 2026458 AMAQI
5th Aug 2026359 AMAQI
5th Aug 20264610 AMAQI
5th Aug 20264811 AMAQI
5th Aug 20264512 PMAQI
5th Aug 2026431 PMAQI
5th Aug 2026462 PMAQI
5th Aug 2026493 PMAQI
5th Aug 2026464 PMAQI
5th Aug 2026355 PMAQI
5th Aug 2026386 PMAQI
5th Aug 2026487 PMAQI
5th Aug 2026418 PMAQI
5th Aug 2026469 PMAQI
5th Aug 20266010 PMAQI
5th Aug 20265811 PMAQI
6th Aug 20265912 AMAQI
6th Aug 2026561 AMAQI
6th Aug 2026592 AMAQI
6th Aug 2026593 AMAQI
6th Aug 2026644 AMAQI
27°C25/29°C
6th Aug 2026525 AMAQI
6th Aug 2026566 AMAQI
6th Aug 2026587 AMAQI
6th Aug 2026618 AMAQI
6th Aug 2026659 AMAQI
6th Aug 20266310 AMAQI
6th Aug 20265611 AMAQI
6th Aug 20265512 PMAQI
6th Aug 2026521 PMAQI
6th Aug 2026392 PMAQI
6th Aug 2026423 PMAQI
6th Aug 2026364 PMAQI
6th Aug 2026355 PMAQI
6th Aug 2026326 PMAQI
6th Aug 2026327 PMAQI
6th Aug 2026358 PMAQI
6th Aug 2026379 PMAQI
6th Aug 20264010 PMAQI
6th Aug 20264611 PMAQI
7th Aug 20263612 AMAQI
7th Aug 2026391 AMAQI
7th Aug 2026372 AMAQI
7th Aug 2026423 AMAQI
7th Aug 2026334 AMAQI
27°C25/29°C
7th Aug 2026385 AMAQI
7th Aug 2026366 AMAQI
7th Aug 2026327 AMAQI
7th Aug 2026348 AMAQI
7th Aug 2026389 AMAQI
7th Aug 20264410 AMAQI
7th Aug 20265311 AMAQI
7th Aug 20265512 PMAQI
7th Aug 2026511 PMAQI
7th Aug 2026522 PMAQI
7th Aug 2026503 PMAQI
7th Aug 2026504 PMAQI
7th Aug 2026505 PMAQI
7th Aug 2026506 PMAQI
7th Aug 2026507 PMAQI
7th Aug 2026468 PMAQI
7th Aug 2026509 PMAQI
7th Aug 20264910 PMAQI
7th Aug 20264711 PMAQI
8th Aug 20265112 AMAQI
8th Aug 2026511 AMAQI
8th Aug 2026502 AMAQI
8th Aug 2026513 AMAQI
8th Aug 2026524 AMAQI
27°C25/31°C
8th Aug 2026575 AMAQI
5 AM8th Aug 2026596 AMAQI
8th Aug 2026577 AMAQI
8th Aug 2026578 AMAQI
8th Aug 2026589 AMAQI
8th Aug 20266110 AMAQI
8th Aug 20266411 AMAQI
11 AM8th Aug 20266212 PMAQI
8th Aug 2026571 PMAQI
8th Aug 2026542 PMAQI
8th Aug 2026493 PMAQI
8th Aug 2026464 PMAQI
8th Aug 2026445 PMAQI
8th Aug 2026456 PMAQI
6 PM8th Aug 2026507 PMAQI
8th Aug 2026478 PMAQI
8th Aug 2026459 PMAQI
8th Aug 20265210 PMAQI
8th Aug 20265411 PMAQI
11 PM4 AM
28°C25/34°C
Day time
Avg. Highest Time
9 AM - 12 PM
49AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
3 PM - 6 PM
43AQI
4 hours / Day
120 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 9 AM to 12 PM (Avg. 49), while the lowest AQI was between 3 PM to 6 PM (Avg. 43).
Night time
Avg. Highest Time
10 PM - 11 PM
51AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
2 AM - 8 PM
46AQI
5 hours / Day
150 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 10 PM to 11 PM (Avg. 51), while the lowest AQI was between 2 AM to 8 PM (Avg. 46).
2026 Days Vs Air Quality
Ha Long, Quang Ninh, Vietnam
2026
33%
72
55%
119
12%
25
Total number of days with different AQI categories in last 220 days in 2026 (145 days remaining)
Good
72 DaysModerate
119 DaysPoor
25 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 33%
Health Risk Level:
High
In 2026, 33% of 220 days were within WHO’s safe air quality limits. The risk of health issues is High, with respiratory problems, heart disease, skin issues, and stress being more common, particularly among children and the elderly.
Annual Air Quality Insights
Ha Long, Quang Ninh, Vietnam
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
83AQI (US)
83AQI (US)
2nd January 2026
66AQI (US)
66AQI (US)
3rd January 2026
87AQI (US)
87AQI (US)
4th January 2026
102AQI (US)
102AQI (US)
5th January 2026
87AQI (US)
87AQI (US)
6th January 2026
68AQI (US)
68AQI (US)
7th January 2026
83AQI (US)
83AQI (US)
8th January 2026
85AQI (US)
85AQI (US)
9th January 2026
95AQI (US)
95AQI (US)
10th January 2026
91AQI (US)
91AQI (US)
11th January 2026
114AQI (US)
114AQI (US)
12th January 2026
102AQI (US)
102AQI (US)
13th January 2026
124AQI (US)
124AQI (US)
14th January 2026
118AQI (US)
118AQI (US)
15th January 2026
116AQI (US)
116AQI (US)
16th January 2026
117AQI (US)
117AQI (US)
17th January 2026
97AQI (US)
97AQI (US)
18th January 2026
103AQI (US)
103AQI (US)
19th January 2026
99AQI (US)
99AQI (US)
20th January 2026
77AQI (US)
77AQI (US)
21st January 2026
65AQI (US)
65AQI (US)
22nd January 2026
48AQI (US)
48AQI (US)
23rd January 2026
65AQI (US)
65AQI (US)
24th January 2026
101AQI (US)
101AQI (US)
25th January 2026
128AQI (US)
128AQI (US)
26th January 2026
104AQI (US)
104AQI (US)
27th January 2026
142AQI (US)
142AQI (US)
28th January 2026
143AQI (US)
143AQI (US)
29th January 2026
133AQI (US)
133AQI (US)
30th January 2026
78AQI (US)
78AQI (US)
31st January 2026
76AQI (US)
76AQI (US)
1st February 2026
76AQI (US)
76AQI (US)
2nd February 2026
103AQI (US)
103AQI (US)
3rd February 2026
147AQI (US)
147AQI (US)
4th February 2026
144AQI (US)
144AQI (US)
5th February 2026
108AQI (US)
108AQI (US)
6th February 2026
81AQI (US)
81AQI (US)
7th February 2026
72AQI (US)
72AQI (US)
8th February 2026
78AQI (US)
78AQI (US)
9th February 2026
53AQI (US)
53AQI (US)
10th February 2026
79AQI (US)
79AQI (US)
11th February 2026
79AQI (US)
79AQI (US)
12th February 2026
76AQI (US)
76AQI (US)
13th February 2026
71AQI (US)
71AQI (US)
14th February 2026
70AQI (US)
70AQI (US)
15th February 2026
75AQI (US)
75AQI (US)
16th February 2026
64AQI (US)
64AQI (US)
17th February 2026
102AQI (US)
102AQI (US)
18th February 2026
98AQI (US)
98AQI (US)
19th February 2026
99AQI (US)
99AQI (US)
20th February 2026
87AQI (US)
87AQI (US)
21st February 2026
69AQI (US)
69AQI (US)
22nd February 2026
42AQI (US)
42AQI (US)
23rd February 2026
60AQI (US)
60AQI (US)
24th February 2026
68AQI (US)
68AQI (US)
25th February 2026
77AQI (US)
77AQI (US)
26th February 2026
76AQI (US)
76AQI (US)
27th February 2026
73AQI (US)
73AQI (US)
28th February 2026
60AQI (US)
60AQI (US)
1st March 2026
72AQI (US)
72AQI (US)
2nd March 2026
69AQI (US)
69AQI (US)
3rd March 2026
51AQI (US)
51AQI (US)
4th March 2026
62AQI (US)
62AQI (US)
5th March 2026
83AQI (US)
83AQI (US)
6th March 2026
120AQI (US)
120AQI (US)
7th March 2026
90AQI (US)
90AQI (US)
8th March 2026
67AQI (US)
67AQI (US)
9th March 2026
56AQI (US)
56AQI (US)
10th March 2026
24AQI (US)
24AQI (US)
11th March 2026
54AQI (US)
54AQI (US)
12th March 2026
101AQI (US)
101AQI (US)
13th March 2026
96AQI (US)
96AQI (US)
14th March 2026
72AQI (US)
72AQI (US)
15th March 2026
67AQI (US)
67AQI (US)
16th March 2026
60AQI (US)
60AQI (US)
17th March 2026
59AQI (US)
59AQI (US)
18th March 2026
67AQI (US)
67AQI (US)
19th March 2026
64AQI (US)
64AQI (US)
20th March 2026
59AQI (US)
59AQI (US)
21st March 2026
76AQI (US)
76AQI (US)
22nd March 2026
60AQI (US)
60AQI (US)
23rd March 2026
51AQI (US)
51AQI (US)
24th March 2026
75AQI (US)
75AQI (US)
25th March 2026
67AQI (US)
67AQI (US)
26th March 2026
82AQI (US)
82AQI (US)
27th March 2026
73AQI (US)
73AQI (US)
28th March 2026
71AQI (US)
71AQI (US)
29th March 2026
65AQI (US)
65AQI (US)
30th March 2026
74AQI (US)
74AQI (US)
31st March 2026
66AQI (US)
66AQI (US)
1st April 2026
52AQI (US)
52AQI (US)
2nd April 2026
70AQI (US)
70AQI (US)
3rd April 2026
75AQI (US)
75AQI (US)
4th April 2026
69AQI (US)
69AQI (US)
5th April 2026
87AQI (US)
87AQI (US)
6th April 2026
122AQI (US)
122AQI (US)
7th April 2026
103AQI (US)
103AQI (US)
8th April 2026
84AQI (US)
84AQI (US)
9th April 2026
75AQI (US)
75AQI (US)
10th April 2026
84AQI (US)
84AQI (US)
11th April 2026
112AQI (US)
112AQI (US)
12th April 2026
105AQI (US)
105AQI (US)
13th April 2026
83AQI (US)
83AQI (US)
14th April 2026
71AQI (US)
71AQI (US)
15th April 2026
65AQI (US)
65AQI (US)
16th April 2026
49AQI (US)
49AQI (US)
17th April 2026
18th April 2026
59AQI (US)
59AQI (US)
19th April 2026
56AQI (US)
56AQI (US)
20th April 2026
57AQI (US)
57AQI (US)
21st April 2026
57AQI (US)
57AQI (US)
22nd April 2026
23rd April 2026
40AQI (US)
40AQI (US)
24th April 2026
44AQI (US)
44AQI (US)
25th April 2026
73AQI (US)
73AQI (US)
26th April 2026
62AQI (US)
62AQI (US)
27th April 2026
50AQI (US)
50AQI (US)
28th April 2026
44AQI (US)
44AQI (US)
29th April 2026
33AQI (US)
33AQI (US)
30th April 2026
34AQI (US)
34AQI (US)
1st May 2026
63AQI (US)
63AQI (US)
2nd May 2026
68AQI (US)
68AQI (US)
3rd May 2026
50AQI (US)
50AQI (US)
4th May 2026
32AQI (US)
32AQI (US)
5th May 2026
65AQI (US)
65AQI (US)
6th May 2026
37AQI (US)
37AQI (US)
7th May 2026
42AQI (US)
42AQI (US)
8th May 2026
67AQI (US)
67AQI (US)
9th May 2026
10th May 2026
74AQI (US)
74AQI (US)
11th May 2026
73AQI (US)
73AQI (US)
12th May 2026
37AQI (US)
37AQI (US)
13th May 2026
44AQI (US)
44AQI (US)
14th May 2026
60AQI (US)
60AQI (US)
15th May 2026
61AQI (US)
61AQI (US)
16th May 2026
76AQI (US)
76AQI (US)
17th May 2026
73AQI (US)
73AQI (US)
18th May 2026
70AQI (US)
70AQI (US)
19th May 2026
53AQI (US)
53AQI (US)
20th May 2026
64AQI (US)
64AQI (US)
21st May 2026
76AQI (US)
76AQI (US)
22nd May 2026
77AQI (US)
77AQI (US)
23rd May 2026
66AQI (US)
66AQI (US)
24th May 2026
70AQI (US)
70AQI (US)
25th May 2026
66AQI (US)
66AQI (US)
26th May 2026
48AQI (US)
48AQI (US)
27th May 2026
50AQI (US)
50AQI (US)
28th May 2026
47AQI (US)
47AQI (US)
29th May 2026
60AQI (US)
60AQI (US)
30th May 2026
57AQI (US)
57AQI (US)
31st May 2026
67AQI (US)
67AQI (US)
1st June 2026
52AQI (US)
52AQI (US)
2nd June 2026
49AQI (US)
49AQI (US)
3rd June 2026
47AQI (US)
47AQI (US)
4th June 2026
73AQI (US)
73AQI (US)
5th June 2026
40AQI (US)
40AQI (US)
6th June 2026
38AQI (US)
38AQI (US)
7th June 2026
38AQI (US)
38AQI (US)
8th June 2026
40AQI (US)
40AQI (US)
9th June 2026
27AQI (US)
27AQI (US)
10th June 2026
48AQI (US)
48AQI (US)
11th June 2026
60AQI (US)
60AQI (US)
12th June 2026
75AQI (US)
75AQI (US)
13th June 2026
30AQI (US)
30AQI (US)
14th June 2026
35AQI (US)
35AQI (US)
15th June 2026
49AQI (US)
49AQI (US)
16th June 2026
41AQI (US)
41AQI (US)
17th June 2026
40AQI (US)
40AQI (US)
18th June 2026
35AQI (US)
35AQI (US)
19th June 2026
34AQI (US)
34AQI (US)
20th June 2026
32AQI (US)
32AQI (US)
21st June 2026
43AQI (US)
43AQI (US)
22nd June 2026
50AQI (US)
50AQI (US)
23rd June 2026
44AQI (US)
44AQI (US)
24th June 2026
44AQI (US)
44AQI (US)
25th June 2026
53AQI (US)
53AQI (US)
26th June 2026
34AQI (US)
34AQI (US)
27th June 2026
77AQI (US)
77AQI (US)
28th June 2026
71AQI (US)
71AQI (US)
29th June 2026
45AQI (US)
45AQI (US)
30th June 2026
23AQI (US)
23AQI (US)
1st July 2026
25AQI (US)
25AQI (US)
2nd July 2026
25AQI (US)
25AQI (US)
3rd July 2026
33AQI (US)
33AQI (US)
4th July 2026
23AQI (US)
23AQI (US)
5th July 2026
26AQI (US)
26AQI (US)
6th July 2026
19AQI (US)
19AQI (US)
7th July 2026
30AQI (US)
30AQI (US)
8th July 2026
30AQI (US)
30AQI (US)
9th July 2026
26AQI (US)
26AQI (US)
10th July 2026
29AQI (US)
29AQI (US)
11th July 2026
78AQI (US)
78AQI (US)
12th July 2026
84AQI (US)
84AQI (US)
13th July 2026
49AQI (US)
49AQI (US)
14th July 2026
24AQI (US)
24AQI (US)
15th July 2026
28AQI (US)
28AQI (US)
16th July 2026
30AQI (US)
30AQI (US)
17th July 2026
37AQI (US)
37AQI (US)
18th July 2026
45AQI (US)
45AQI (US)
19th July 2026
35AQI (US)
35AQI (US)
20th July 2026
56AQI (US)
56AQI (US)
21st July 2026
63AQI (US)
63AQI (US)
22nd July 2026
46AQI (US)
46AQI (US)
23rd July 2026
35AQI (US)
35AQI (US)
24th July 2026
44AQI (US)
44AQI (US)
25th July 2026
55AQI (US)
55AQI (US)
26th July 2026
65AQI (US)
65AQI (US)
27th July 2026
47AQI (US)
47AQI (US)
28th July 2026
38AQI (US)
38AQI (US)
29th July 2026
45AQI (US)
45AQI (US)
30th July 2026
51AQI (US)
51AQI (US)
31st July 2026
40AQI (US)
40AQI (US)
1st August 2026
39AQI (US)
39AQI (US)
2nd August 2026
44AQI (US)
44AQI (US)
3rd August 2026
52AQI (US)
52AQI (US)
4th August 2026
50AQI (US)
50AQI (US)
5th August 2026
46AQI (US)
46AQI (US)
6th August 2026
49AQI (US)
49AQI (US)
7th August 2026
44AQI (US)
44AQI (US)
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
97AQI (US)
82AQI (US)
69AQI (US)
68AQI (US)
60AQI (US)
46AQI (US)
41AQI (US)
46AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202665AQI (US)
1
16
14
1
22
5
1
28
2
7
17
4
9
21
23
7
24
7
6
1
72
119
25
Highest AQI (US) recorded in
January97AQI (US)
Lowest AQI (US) recorded in
July41AQI (US)
202572AQI (US)
8
20
3
21
7
2
28
1
29
1
2
29
9
21
8
23
19
12
27
3
31
1
28
1
12
18
1
68
245
48
4
Highest AQI (US) recorded in
January116AQI (US)
Lowest AQI (US) recorded in
September40AQI (US)
202445AQI (US)
21
2
20
7
1
19
12
30
30
1
12
18
31
31
13
13
4
17
14
22
8
2
15
13
1
248
90
18
1
Highest AQI (US) recorded in
December90AQI (US)
Lowest AQI (US) recorded in
August30AQI (US)
202328AQI (US)
31
20
31
29
31
27
2
1
18
4
1
3
30
1
30
26
5
17
12
27
4
317
28
1
4
Highest AQI (US) recorded in
July60AQI (US)
Lowest AQI (US) recorded in
January15AQI (US)
202222AQI (US)
30
21
31
30
30
1
30
23
2
29
31
30
31
318
1
Highest AQI (US) recorded in
May30AQI (US)
Lowest AQI (US) recorded in
February14AQI (US)
202125AQI (US)
10
20
26
31
29
19
9
28
2
31
31
30
31
28
2
31
325
33
Highest AQI (US) recorded in
January61AQI (US)
Lowest AQI (US) recorded in
April0AQI (US)
202026AQI (US)
13
10
11
17
30
30
30
29
31
25
1
23
8
238
20
Highest AQI (US) recorded in
April49AQI (US)
Lowest AQI (US) recorded in
August12AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Most Polluted Year Recorded
2025(Avg.)
72AQI (US)Least Polluted Year Recorded
2022(Avg.)
22AQI (US)Ha Long's annual 2026 AQI (US) (65) shows an average percentage change of 112.05% (worsened AQI (US)) compared to previous years: 2020 (26), 2021 (25), 2022 (22), 2023 (28), 2024 (45), 2025 (72).
