Country Background
HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Hilo, Hawaii, United States 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

Hilo, Hawaii, United States

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
1st Aug 2026
45AQI
Lowest AQI recorded on
30th Aug 2022
8AQI

Same Day Analysis (5th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 1st highest AQI at 43 of Good air quality on the same day.

Day & Night AQI Trend: 4th Aug - 5th Aug 2026

Hilo, Hawaii, United States

AQI
Day
Night
.

5 AM4th Aug 2026

7 PM

4 AM5th Aug 2026

Day time
Avg. Highest Time
7AM4th Aug

52AQI

Avg. Lowest Time
8AM4th Aug

34AQI

Night time
Avg. Highest Time
8PM4th Aug

51AQI

Avg. Lowest Time
3AM5th Aug

31AQI

In the last 24 hours,

Hilo's AQI reached its highest point of 52 at 7 AM during the Day, while the lowest point, 31, was recorded at 3 AM during the Night between 4th Aug and 5th Aug 2026.

Day & Night AQI Trend : Jul - Aug 2026

Hilo, Hawaii, United States

JulAug
07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th
Day
Night
7th Jul 2026335 AMAQI
7th Jul 2026336 AMAQI
7th Jul 2026317 AMAQI
7th Jul 2026328 AMAQI
7th Jul 2026309 AMAQI
7th Jul 20263010 AMAQI
7th Jul 20263311 AMAQI
7th Jul 20263112 PMAQI
7th Jul 2026311 PMAQI
7th Jul 2026292 PMAQI
7th Jul 2026283 PMAQI
7th Jul 2026264 PMAQI
7th Jul 2026285 PMAQI
7th Jul 2026276 PMAQI
7th Jul 2026257 PMAQI
7th Jul 2026308 PMAQI
7th Jul 2026319 PMAQI
7th Jul 20262610 PMAQI
7th Jul 20262511 PMAQI
8th Jul 20262012 AMAQI
8th Jul 2026221 AMAQI
8th Jul 2026252 AMAQI
8th Jul 2026243 AMAQI
8th Jul 2026274 AMAQI

23°C22/24°C

8th Jul 2026315 AMAQI
8th Jul 2026306 AMAQI
8th Jul 2026317 AMAQI
8th Jul 2026328 AMAQI
8th Jul 2026309 AMAQI
8th Jul 20263010 AMAQI
8th Jul 20262911 AMAQI
8th Jul 20263012 PMAQI
8th Jul 2026301 PMAQI
8th Jul 2026252 PMAQI
8th Jul 2026243 PMAQI
8th Jul 2026244 PMAQI
8th Jul 2026245 PMAQI
8th Jul 2026236 PMAQI
8th Jul 2026257 PMAQI
8th Jul 2026278 PMAQI
8th Jul 2026289 PMAQI
8th Jul 20262710 PMAQI
8th Jul 20262811 PMAQI
9th Jul 20262712 AMAQI
9th Jul 2026271 AMAQI
9th Jul 2026252 AMAQI
9th Jul 2026283 AMAQI
9th Jul 2026304 AMAQI

23°C22/25°C

9th Jul 2026315 AMAQI
9th Jul 2026316 AMAQI
9th Jul 2026307 AMAQI
9th Jul 2026318 AMAQI
9th Jul 2026279 AMAQI
9th Jul 20263010 AMAQI
9th Jul 20263011 AMAQI
9th Jul 20262812 PMAQI
9th Jul 2026301 PMAQI
9th Jul 2026332 PMAQI
9th Jul 2026323 PMAQI
9th Jul 2026304 PMAQI
9th Jul 2026295 PMAQI
9th Jul 2026256 PMAQI
9th Jul 2026257 PMAQI
9th Jul 2026258 PMAQI
9th Jul 2026279 PMAQI
9th Jul 20263110 PMAQI
9th Jul 20263111 PMAQI
10th Jul 20263212 AMAQI
10th Jul 2026341 AMAQI
10th Jul 2026312 AMAQI
10th Jul 2026333 AMAQI
10th Jul 2026374 AMAQI

23°C20/26°C

10th Jul 2026375 AMAQI
10th Jul 2026386 AMAQI
10th Jul 2026337 AMAQI
10th Jul 2026358 AMAQI
10th Jul 2026309 AMAQI
10th Jul 20263210 AMAQI
10th Jul 20263311 AMAQI
10th Jul 20263412 PMAQI
10th Jul 2026361 PMAQI
10th Jul 2026372 PMAQI
10th Jul 2026363 PMAQI
10th Jul 2026294 PMAQI
10th Jul 2026295 PMAQI
10th Jul 2026266 PMAQI
10th Jul 2026257 PMAQI
10th Jul 2026248 PMAQI
10th Jul 2026289 PMAQI
10th Jul 20263310 PMAQI
10th Jul 20263211 PMAQI
11th Jul 20263112 AMAQI
11th Jul 2026291 AMAQI
11th Jul 2026332 AMAQI
11th Jul 2026343 AMAQI
11th Jul 2026324 AMAQI

24°C23/25°C

11th Jul 2026335 AMAQI
11th Jul 2026346 AMAQI
11th Jul 2026337 AMAQI
11th Jul 2026328 AMAQI
11th Jul 2026299 AMAQI
11th Jul 20263210 AMAQI
11th Jul 20263211 AMAQI
11th Jul 20263112 PMAQI
11th Jul 2026311 PMAQI
11th Jul 2026322 PMAQI
11th Jul 2026313 PMAQI
11th Jul 2026284 PMAQI
11th Jul 2026275 PMAQI
11th Jul 2026246 PMAQI
11th Jul 2026247 PMAQI
11th Jul 2026268 PMAQI
11th Jul 2026269 PMAQI
11th Jul 20263210 PMAQI
11th Jul 20263011 PMAQI
12th Jul 20263112 AMAQI
12th Jul 2026321 AMAQI
12th Jul 2026332 AMAQI
12th Jul 2026313 AMAQI
12th Jul 2026304 AMAQI

24°C23/25°C

12th Jul 2026325 AMAQI
12th Jul 2026336 AMAQI
12th Jul 2026317 AMAQI
12th Jul 2026318 AMAQI
12th Jul 2026309 AMAQI
12th Jul 20263110 AMAQI
12th Jul 20263011 AMAQI
12th Jul 20263012 PMAQI
12th Jul 2026301 PMAQI
12th Jul 2026322 PMAQI
12th Jul 2026303 PMAQI
12th Jul 2026304 PMAQI
12th Jul 2026275 PMAQI
12th Jul 2026236 PMAQI
12th Jul 2026227 PMAQI
12th Jul 2026228 PMAQI
12th Jul 2026279 PMAQI
12th Jul 20263210 PMAQI
12th Jul 20263211 PMAQI
13th Jul 20263312 AMAQI
13th Jul 2026321 AMAQI
13th Jul 2026332 AMAQI
13th Jul 2026363 AMAQI
13th Jul 2026354 AMAQI

23°C22/24°C

13th Jul 2026345 AMAQI
13th Jul 2026356 AMAQI
13th Jul 2026367 AMAQI
13th Jul 2026358 AMAQI
13th Jul 2026299 AMAQI
13th Jul 20263110 AMAQI
13th Jul 20263211 AMAQI
13th Jul 20263212 PMAQI
13th Jul 2026291 PMAQI
13th Jul 2026352 PMAQI
13th Jul 2026343 PMAQI
13th Jul 2026274 PMAQI
13th Jul 2026255 PMAQI
13th Jul 2026216 PMAQI
13th Jul 2026227 PMAQI
13th Jul 2026218 PMAQI
13th Jul 2026249 PMAQI
13th Jul 20263110 PMAQI
13th Jul 20263311 PMAQI
14th Jul 20263212 AMAQI
14th Jul 2026331 AMAQI
14th Jul 2026342 AMAQI
14th Jul 2026343 AMAQI
14th Jul 2026344 AMAQI

22°C21/24°C

14th Jul 2026375 AMAQI
14th Jul 2026366 AMAQI
14th Jul 2026357 AMAQI
14th Jul 2026328 AMAQI
14th Jul 2026309 AMAQI
14th Jul 20263410 AMAQI
14th Jul 20262811 AMAQI
14th Jul 20263212 PMAQI
14th Jul 2026341 PMAQI
14th Jul 2026312 PMAQI
14th Jul 2026343 PMAQI
14th Jul 2026284 PMAQI
14th Jul 2026265 PMAQI
14th Jul 2026216 PMAQI
14th Jul 2026227 PMAQI
14th Jul 2026208 PMAQI
14th Jul 2026239 PMAQI
14th Jul 20262610 PMAQI
14th Jul 20262811 PMAQI
15th Jul 20262412 AMAQI
15th Jul 2026261 AMAQI
15th Jul 2026262 AMAQI
15th Jul 2026293 AMAQI
15th Jul 2026254 AMAQI

23°C21/25°C

15th Jul 2026265 AMAQI
15th Jul 2026276 AMAQI
15th Jul 2026317 AMAQI
15th Jul 2026288 AMAQI
15th Jul 2026279 AMAQI
15th Jul 20263110 AMAQI
15th Jul 20263011 AMAQI
15th Jul 20263112 PMAQI
15th Jul 2026321 PMAQI
15th Jul 2026312 PMAQI
15th Jul 2026323 PMAQI
15th Jul 2026284 PMAQI
15th Jul 2026285 PMAQI
15th Jul 2026266 PMAQI
15th Jul 2026257 PMAQI
15th Jul 2026268 PMAQI
15th Jul 2026239 PMAQI
15th Jul 20262710 PMAQI
15th Jul 20262911 PMAQI
16th Jul 20262912 AMAQI
16th Jul 2026291 AMAQI
16th Jul 2026302 AMAQI
16th Jul 2026283 AMAQI
16th Jul 2026304 AMAQI

23°C21/26°C

16th Jul 2026315 AMAQI
16th Jul 2026316 AMAQI
16th Jul 2026327 AMAQI
16th Jul 2026318 AMAQI
16th Jul 2026319 AMAQI
16th Jul 20263210 AMAQI
16th Jul 20263011 AMAQI
16th Jul 20262912 PMAQI
16th Jul 2026251 PMAQI
16th Jul 2026292 PMAQI
16th Jul 2026303 PMAQI
16th Jul 2026284 PMAQI
16th Jul 2026275 PMAQI
16th Jul 2026256 PMAQI
16th Jul 2026267 PMAQI
16th Jul 2026258 PMAQI
16th Jul 2026289 PMAQI
16th Jul 20262410 PMAQI
16th Jul 20263011 PMAQI
17th Jul 20264812 AMAQI
17th Jul 2026451 AMAQI
17th Jul 2026422 AMAQI
17th Jul 2026483 AMAQI
17th Jul 2026464 AMAQI

24°C21/26°C

17th Jul 2026415 AMAQI
17th Jul 2026386 AMAQI
17th Jul 2026407 AMAQI
17th Jul 2026458 AMAQI
17th Jul 2026439 AMAQI
17th Jul 20264410 AMAQI
17th Jul 20264911 AMAQI
17th Jul 20265112 PMAQI
17th Jul 2026501 PMAQI
17th Jul 2026482 PMAQI
17th Jul 2026503 PMAQI
17th Jul 2026494 PMAQI
17th Jul 2026465 PMAQI
17th Jul 2026506 PMAQI
17th Jul 2026457 PMAQI
17th Jul 2026478 PMAQI
17th Jul 2026499 PMAQI
17th Jul 20264510 PMAQI
17th Jul 20265311 PMAQI
18th Jul 20264912 AMAQI
18th Jul 2026491 AMAQI
18th Jul 2026432 AMAQI
18th Jul 2026323 AMAQI
18th Jul 2026464 AMAQI

24°C22/26°C

18th Jul 2026425 AMAQI
18th Jul 2026466 AMAQI
18th Jul 2026537 AMAQI
18th Jul 2026488 AMAQI
18th Jul 2026609 AMAQI
18th Jul 20264310 AMAQI
18th Jul 20264211 AMAQI
18th Jul 20264612 PMAQI
18th Jul 2026461 PMAQI
18th Jul 2026462 PMAQI
18th Jul 2026553 PMAQI
18th Jul 2026414 PMAQI
18th Jul 2026435 PMAQI
18th Jul 2026486 PMAQI
18th Jul 2026497 PMAQI
18th Jul 2026498 PMAQI
18th Jul 2026449 PMAQI
18th Jul 20264210 PMAQI
18th Jul 20263211 PMAQI
19th Jul 20262312 AMAQI
19th Jul 2026341 AMAQI
19th Jul 2026572 AMAQI
19th Jul 2026553 AMAQI
19th Jul 2026354 AMAQI

24°C22/25°C

19th Jul 2026455 AMAQI
19th Jul 2026476 AMAQI
19th Jul 2026437 AMAQI
19th Jul 2026338 AMAQI
19th Jul 2026329 AMAQI
19th Jul 20264010 AMAQI
19th Jul 20263911 AMAQI
19th Jul 20264012 PMAQI
19th Jul 2026471 PMAQI
19th Jul 2026422 PMAQI
19th Jul 2026433 PMAQI
19th Jul 2026334 PMAQI
19th Jul 2026385 PMAQI
19th Jul 2026366 PMAQI
19th Jul 2026467 PMAQI
19th Jul 2026418 PMAQI
19th Jul 2026479 PMAQI
19th Jul 20264910 PMAQI
19th Jul 20264411 PMAQI
20th Jul 20264912 AMAQI
20th Jul 2026451 AMAQI
20th Jul 2026392 AMAQI
20th Jul 2026313 AMAQI
20th Jul 2026434 AMAQI

24°C22/25°C

20th Jul 2026445 AMAQI
20th Jul 2026506 AMAQI
20th Jul 2026477 AMAQI
20th Jul 2026428 AMAQI
20th Jul 2026559 AMAQI
20th Jul 20264510 AMAQI
20th Jul 20264911 AMAQI
20th Jul 20264212 PMAQI
20th Jul 2026411 PMAQI
20th Jul 2026422 PMAQI
20th Jul 2026453 PMAQI
20th Jul 2026474 PMAQI
20th Jul 2026466 PMAQI
20th Jul 2026397 PMAQI
20th Jul 2026428 PMAQI
20th Jul 2026279 PMAQI
20th Jul 20262110 PMAQI
20th Jul 20264011 PMAQI
21st Jul 20263812 AMAQI
21st Jul 2026411 AMAQI
21st Jul 2026472 AMAQI
21st Jul 2026463 AMAQI
21st Jul 2026454 AMAQI

24°C22/27°C

21st Jul 2026415 AMAQI
21st Jul 2026566 AMAQI
21st Jul 2026527 AMAQI
21st Jul 2026468 AMAQI
21st Jul 2026439 AMAQI
21st Jul 20264610 AMAQI
21st Jul 20263711 AMAQI
21st Jul 20264312 PMAQI
21st Jul 2026511 PMAQI
21st Jul 2026292 PMAQI
21st Jul 2026233 PMAQI
21st Jul 2026204 PMAQI
21st Jul 2026385 PMAQI
21st Jul 2026606 PMAQI
21st Jul 2026677 PMAQI
21st Jul 2026408 PMAQI
21st Jul 2026559 PMAQI
21st Jul 20263710 PMAQI
21st Jul 20264611 PMAQI
22nd Jul 20265012 AMAQI
22nd Jul 2026461 AMAQI
22nd Jul 2026222 AMAQI
22nd Jul 2026273 AMAQI
22nd Jul 2026264 AMAQI

24°C23/26°C

22nd Jul 2026245 AMAQI
22nd Jul 2026206 AMAQI
22nd Jul 2026247 AMAQI
22nd Jul 2026518 AMAQI
22nd Jul 2026569 AMAQI
22nd Jul 20265210 AMAQI
22nd Jul 20264311 AMAQI
22nd Jul 20264612 PMAQI
22nd Jul 2026411 PMAQI
22nd Jul 2026542 PMAQI
22nd Jul 2026453 PMAQI
22nd Jul 2026714 PMAQI
22nd Jul 2026545 PMAQI
22nd Jul 2026526 PMAQI
22nd Jul 2026367 PMAQI
22nd Jul 2026108 PMAQI
22nd Jul 202689 PMAQI
22nd Jul 20262310 PMAQI
22nd Jul 20261511 PMAQI
23rd Jul 20263812 AMAQI
23rd Jul 202691 AMAQI
23rd Jul 202682 AMAQI
23rd Jul 202693 AMAQI
23rd Jul 202684 AMAQI

24°C23/25°C

23rd Jul 2026255 AMAQI
23rd Jul 2026256 AMAQI
23rd Jul 2026507 AMAQI
23rd Jul 2026198 AMAQI
23rd Jul 2026189 AMAQI
23rd Jul 20264610 AMAQI
23rd Jul 20266911 AMAQI
23rd Jul 20263012 PMAQI
23rd Jul 2026231 PMAQI
23rd Jul 2026372 PMAQI
23rd Jul 2026483 PMAQI
23rd Jul 2026444 PMAQI
23rd Jul 2026265 PMAQI
23rd Jul 2026546 PMAQI
23rd Jul 2026367 PMAQI
23rd Jul 2026458 PMAQI
23rd Jul 2026299 PMAQI
23rd Jul 20263310 PMAQI
23rd Jul 20264011 PMAQI
24th Jul 20265312 AMAQI
24th Jul 2026461 AMAQI
24th Jul 2026522 AMAQI
24th Jul 2026513 AMAQI
24th Jul 2026384 AMAQI

23°C22/25°C

24th Jul 2026525 AMAQI
24th Jul 2026436 AMAQI
24th Jul 2026467 AMAQI
24th Jul 2026398 AMAQI
24th Jul 2026289 AMAQI
24th Jul 20264210 AMAQI
24th Jul 20264611 AMAQI
24th Jul 20264512 PMAQI
24th Jul 2026421 PMAQI
24th Jul 2026412 PMAQI
24th Jul 2026503 PMAQI
24th Jul 2026464 PMAQI
24th Jul 2026395 PMAQI
24th Jul 2026346 PMAQI
24th Jul 2026387 PMAQI
24th Jul 2026378 PMAQI
24th Jul 2026449 PMAQI
24th Jul 20264610 PMAQI
24th Jul 20265011 PMAQI
25th Jul 20265012 AMAQI
25th Jul 2026541 AMAQI
25th Jul 2026482 AMAQI
25th Jul 2026463 AMAQI
25th Jul 2026494 AMAQI

24°C22/26°C

25th Jul 2026325 AMAQI
25th Jul 2026506 AMAQI
25th Jul 2026487 AMAQI
25th Jul 2026468 AMAQI
25th Jul 2026489 AMAQI
25th Jul 20264610 AMAQI
25th Jul 20264011 AMAQI
25th Jul 20263812 PMAQI
25th Jul 2026421 PMAQI
25th Jul 2026292 PMAQI
25th Jul 2026453 PMAQI
25th Jul 2026504 PMAQI
25th Jul 2026605 PMAQI
25th Jul 2026546 PMAQI
25th Jul 2026597 PMAQI
25th Jul 2026578 PMAQI
25th Jul 2026579 PMAQI
25th Jul 20265410 PMAQI
25th Jul 20264811 PMAQI
26th Jul 20264212 AMAQI
26th Jul 2026451 AMAQI
26th Jul 2026432 AMAQI
26th Jul 2026413 AMAQI
26th Jul 2026444 AMAQI

23°C22/24°C

26th Jul 2026215 AMAQI
26th Jul 2026206 AMAQI
26th Jul 2026357 AMAQI
26th Jul 2026508 AMAQI
26th Jul 2026429 AMAQI
26th Jul 20264510 AMAQI
26th Jul 20264311 AMAQI
26th Jul 20262312 PMAQI
26th Jul 2026381 PMAQI
26th Jul 2026352 PMAQI
26th Jul 2026373 PMAQI
26th Jul 2026614 PMAQI
26th Jul 2026645 PMAQI
26th Jul 2026466 PMAQI
26th Jul 2026387 PMAQI
26th Jul 2026528 PMAQI
26th Jul 2026429 PMAQI
26th Jul 20263910 PMAQI
26th Jul 20264011 PMAQI
27th Jul 20263612 AMAQI
27th Jul 2026411 AMAQI
27th Jul 2026472 AMAQI
27th Jul 2026523 AMAQI
27th Jul 2026474 AMAQI

23°C21/25°C

27th Jul 2026495 AMAQI
27th Jul 2026326 AMAQI
27th Jul 2026207 AMAQI
27th Jul 2026468 AMAQI
27th Jul 2026459 AMAQI
27th Jul 20265010 AMAQI
27th Jul 20264611 AMAQI
27th Jul 20264112 PMAQI
27th Jul 2026391 PMAQI
27th Jul 2026302 PMAQI
27th Jul 2026313 PMAQI
27th Jul 2026354 PMAQI
27th Jul 2026385 PMAQI
27th Jul 2026376 PMAQI
27th Jul 2026297 PMAQI
27th Jul 2026388 PMAQI
27th Jul 2026429 PMAQI
27th Jul 20264610 PMAQI
27th Jul 20264611 PMAQI
28th Jul 20264612 AMAQI
28th Jul 2026231 AMAQI
28th Jul 2026432 AMAQI
28th Jul 2026323 AMAQI
28th Jul 2026294 AMAQI

25°C21/27°C

28th Jul 2026445 AMAQI
28th Jul 2026466 AMAQI
28th Jul 2026407 AMAQI
28th Jul 2026568 AMAQI
28th Jul 2026439 AMAQI
28th Jul 20264410 AMAQI
28th Jul 20263511 AMAQI
28th Jul 20264612 PMAQI
28th Jul 2026491 PMAQI
28th Jul 2026282 PMAQI
28th Jul 2026423 PMAQI
28th Jul 2026424 PMAQI
28th Jul 2026385 PMAQI
28th Jul 2026346 PMAQI
28th Jul 2026467 PMAQI
28th Jul 2026218 PMAQI
28th Jul 2026349 PMAQI
28th Jul 20262410 PMAQI
28th Jul 20263511 PMAQI
29th Jul 20264212 AMAQI
29th Jul 2026471 AMAQI
29th Jul 2026442 AMAQI
29th Jul 2026443 AMAQI
29th Jul 2026424 AMAQI

25°C23/27°C

29th Jul 2026395 AMAQI
29th Jul 2026526 AMAQI
29th Jul 2026337 AMAQI
29th Jul 2026388 AMAQI
29th Jul 2026389 AMAQI
29th Jul 20264210 AMAQI
29th Jul 20264911 AMAQI
29th Jul 20262312 PMAQI
29th Jul 2026461 PMAQI
29th Jul 2026252 PMAQI
29th Jul 2026283 PMAQI
29th Jul 2026464 PMAQI
29th Jul 2026385 PMAQI
29th Jul 2026416 PMAQI
29th Jul 2026457 PMAQI
29th Jul 2026318 PMAQI
29th Jul 2026279 PMAQI
29th Jul 20264110 PMAQI
29th Jul 20265011 PMAQI
30th Jul 20264612 AMAQI
30th Jul 2026391 AMAQI
30th Jul 2026442 AMAQI
30th Jul 2026543 AMAQI
30th Jul 2026504 AMAQI

25°C23/27°C

30th Jul 2026505 AMAQI
30th Jul 2026506 AMAQI
30th Jul 2026547 AMAQI
30th Jul 2026458 AMAQI
30th Jul 2026479 AMAQI
30th Jul 20265510 AMAQI
30th Jul 20264711 AMAQI
30th Jul 20264812 PMAQI
30th Jul 2026451 PMAQI
30th Jul 2026462 PMAQI
30th Jul 2026433 PMAQI
30th Jul 2026454 PMAQI
30th Jul 2026525 PMAQI
30th Jul 2026476 PMAQI
30th Jul 2026477 PMAQI
30th Jul 2026428 PMAQI
30th Jul 2026489 PMAQI
30th Jul 20264610 PMAQI
30th Jul 20265311 PMAQI
31st Jul 20264112 AMAQI
31st Jul 2026471 AMAQI
31st Jul 2026562 AMAQI
31st Jul 2026553 AMAQI
31st Jul 2026514 AMAQI

25°C23/27°C

31st Jul 2026545 AMAQI
31st Jul 2026536 AMAQI
31st Jul 2026567 AMAQI
31st Jul 2026508 AMAQI
31st Jul 2026479 AMAQI
31st Jul 20265210 AMAQI
31st Jul 20265311 AMAQI
31st Jul 20265212 PMAQI
31st Jul 2026531 PMAQI
31st Jul 2026502 PMAQI
31st Jul 2026413 PMAQI
31st Jul 2026474 PMAQI
31st Jul 2026475 PMAQI
31st Jul 2026496 PMAQI
31st Jul 2026457 PMAQI
31st Jul 2026478 PMAQI
31st Jul 2026419 PMAQI
31st Jul 20264310 PMAQI
31st Jul 20264411 PMAQI
1st Aug 20264612 AMAQI
1st Aug 2026461 AMAQI
1st Aug 2026512 AMAQI
1st Aug 2026393 AMAQI
1st Aug 2026444 AMAQI

24°C22/26°C

1st Aug 2026395 AMAQI
1st Aug 2026546 AMAQI
1st Aug 2026467 AMAQI
1st Aug 2026518 AMAQI
1st Aug 2026489 AMAQI
1st Aug 20264410 AMAQI
1st Aug 20264111 AMAQI
1st Aug 20265012 PMAQI
1st Aug 2026431 PMAQI
1st Aug 2026442 PMAQI
1st Aug 2026393 PMAQI
1st Aug 2026434 PMAQI
1st Aug 2026395 PMAQI
1st Aug 2026406 PMAQI
1st Aug 2026507 PMAQI
1st Aug 2026528 PMAQI
1st Aug 2026509 PMAQI
1st Aug 20263810 PMAQI
1st Aug 20263711 PMAQI
2nd Aug 20264212 AMAQI
2nd Aug 2026501 AMAQI
2nd Aug 2026462 AMAQI
2nd Aug 2026323 AMAQI
2nd Aug 2026384 AMAQI

24°C22/25°C

2nd Aug 2026455 AMAQI
2nd Aug 2026396 AMAQI
2nd Aug 2026417 AMAQI
2nd Aug 2026518 AMAQI
2nd Aug 2026519 AMAQI
2nd Aug 20264110 AMAQI
2nd Aug 20264811 AMAQI
2nd Aug 20264212 PMAQI
2nd Aug 2026411 PMAQI
2nd Aug 2026412 PMAQI
2nd Aug 2026523 PMAQI
2nd Aug 2026454 PMAQI
2nd Aug 2026475 PMAQI
2nd Aug 2026396 PMAQI
2nd Aug 2026517 PMAQI
2nd Aug 2026518 PMAQI
2nd Aug 2026509 PMAQI
2nd Aug 20264610 PMAQI
2nd Aug 20265211 PMAQI
3rd Aug 20265012 AMAQI
3rd Aug 2026461 AMAQI
3rd Aug 2026522 AMAQI
3rd Aug 2026423 AMAQI
3rd Aug 2026414 AMAQI

24°C22/25°C

3rd Aug 2026455 AMAQI
3rd Aug 2026456 AMAQI
3rd Aug 2026437 AMAQI
3rd Aug 2026558 AMAQI
3rd Aug 2026579 AMAQI
3rd Aug 20264710 AMAQI
3rd Aug 20263611 AMAQI
3rd Aug 20265812 PMAQI
3rd Aug 2026561 PMAQI
3rd Aug 2026472 PMAQI
3rd Aug 2026303 PMAQI
3rd Aug 2026454 PMAQI
3rd Aug 2026425 PMAQI
3rd Aug 2026456 PMAQI
3rd Aug 2026287 PMAQI
3rd Aug 2026258 PMAQI
3rd Aug 2026509 PMAQI
3rd Aug 20264510 PMAQI
3rd Aug 20264111 PMAQI
4th Aug 20262312 AMAQI
4th Aug 2026441 AMAQI
4th Aug 2026402 AMAQI
4th Aug 2026413 AMAQI
4th Aug 2026324 AMAQI

24°C21/27°C

4th Aug 2026415 AMAQI
4th Aug 2026506 AMAQI
4th Aug 2026527 AMAQI
4th Aug 2026348 AMAQI
4th Aug 2026509 AMAQI
4th Aug 20264210 AMAQI
4th Aug 20264111 AMAQI
4th Aug 20263812 PMAQI
4th Aug 2026391 PMAQI
4th Aug 2026362 PMAQI
4th Aug 2026423 PMAQI
4th Aug 2026444 PMAQI
4th Aug 2026495 PMAQI
4th Aug 2026506 PMAQI
4th Aug 2026387 PMAQI
4th Aug 2026518 PMAQI
4th Aug 2026369 PMAQI
4th Aug 20264010 PMAQI
4th Aug 20263811 PMAQI
5th Aug 20264612 AMAQI
5th Aug 2026411 AMAQI
5th Aug 2026392 AMAQI
5th Aug 2026313 AMAQI
5th Aug 2026434 AMAQI

24°C22/27°C

5th Aug 2026385 AMAQI
5 AM
5th Aug 2026356 AMAQI
5th Aug 2026417 AMAQI
5th Aug 2026358 AMAQI
5th Aug 2026379 AMAQI
5th Aug 20264110 AMAQI
5th Aug 20263911 AMAQI
5th Aug 20264612 PMAQI
12 PM
5th Aug 2026491 PMAQI
5th Aug 2026412 PMAQI
5th Aug 2026503 PMAQI
5th Aug 2026444 PMAQI
5th Aug 2026485 PMAQI
5th Aug 2026476 PMAQI
5th Aug 2026537 PMAQI
7 PM
5th Aug 2026508 PMAQI
5th Aug 2026419 PMAQI
5th Aug 20264210 PMAQI
5th Aug 20264111 PMAQI
12 AM
4 AM

24°C22/26°C

Day time
Avg. Highest Time
10 AM - 1 PM

40AQI

4 hours / Day
120 hours / Month
Avg. Lowest Time
2 PM - 7 PM

38AQI

6 hours / Day
180 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 10 AM to 1 PM (Avg. 40), while the lowest AQI was between 2 PM to 7 PM (Avg. 38).
Night time
Avg. Highest Time
12 AM - 2 AM

38AQI

3 hours / Day
90 hours / Month
Avg. Lowest Time
3 AM - 10 PM

36AQI

5 hours / Day
150 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 2 AM (Avg. 38), while the lowest AQI was between 3 AM to 10 PM (Avg. 36).

2026 Days Vs Air Quality

Hilo, Hawaii, United States

2026

90%

193

10%

21

Total number of days with different AQI categories in last 217 days in 2026 (148 days remaining)

Good
193 Days
Moderate
21 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 90%

Health Risk Level:

Very Low

In 2026, 90% of 217 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

Hilo, Hawaii, United States

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
28AQI (US)
2nd January 2026
14AQI (US)
3rd January 2026
15AQI (US)
4th January 2026
13AQI (US)
5th January 2026
22AQI (US)
6th January 2026
17AQI (US)
7th January 2026
17AQI (US)
8th January 2026
21AQI (US)
9th January 2026
17AQI (US)
10th January 2026
19AQI (US)
11th January 2026
15AQI (US)
12th January 2026
23AQI (US)
13th January 2026
39AQI (US)
14th January 2026
25AQI (US)
15th January 2026
25AQI (US)
16th January 2026
16AQI (US)
17th January 2026
17AQI (US)
18th January 2026
18AQI (US)
19th January 2026
21AQI (US)
20th January 2026
23AQI (US)
21st January 2026
27AQI (US)
22nd January 2026
55AQI (US)
23rd January 2026
52AQI (US)
24th January 2026
50AQI (US)
25th January 2026
53AQI (US)
26th January 2026
46AQI (US)
27th January 2026
43AQI (US)
28th January 2026
46AQI (US)
29th January 2026
51AQI (US)
30th January 2026
55AQI (US)
31st January 2026
49AQI (US)
1st February 2026
55AQI (US)
2nd February 2026
55AQI (US)
3rd February 2026
52AQI (US)
4th February 2026
52AQI (US)
5th February 2026
47AQI (US)
6th February 2026
46AQI (US)
7th February 2026
44AQI (US)
8th February 2026
49AQI (US)
9th February 2026
43AQI (US)
10th February 2026
35AQI (US)
11th February 2026
40AQI (US)
12th February 2026
41AQI (US)
13th February 2026
46AQI (US)
14th February 2026
44AQI (US)
15th February 2026
46AQI (US)
16th February 2026
51AQI (US)
17th February 2026
51AQI (US)
18th February 2026
40AQI (US)
19th February 2026
51AQI (US)
20th February 2026
42AQI (US)
21st February 2026
38AQI (US)
22nd February 2026
41AQI (US)
23rd February 2026
44AQI (US)
24th February 2026
45AQI (US)
25th February 2026
40AQI (US)
26th February 2026
31AQI (US)
27th February 2026
35AQI (US)
28th February 2026
34AQI (US)
1st March 2026
44AQI (US)
2nd March 2026
54AQI (US)
3rd March 2026
45AQI (US)
4th March 2026
44AQI (US)
5th March 2026
35AQI (US)
6th March 2026
32AQI (US)
7th March 2026
36AQI (US)
8th March 2026
39AQI (US)
9th March 2026
37AQI (US)
10th March 2026
36AQI (US)
11th March 2026
36AQI (US)
12th March 2026
40AQI (US)
13th March 2026
39AQI (US)
14th March 2026
29AQI (US)
15th March 2026
34AQI (US)
16th March 2026
23AQI (US)
17th March 2026
23AQI (US)
18th March 2026
25AQI (US)
19th March 2026
32AQI (US)
20th March 2026
32AQI (US)
21st March 2026
30AQI (US)
22nd March 2026
29AQI (US)
23rd March 2026
41AQI (US)
24th March 2026
28AQI (US)
25th March 2026
27AQI (US)
26th March 2026
34AQI (US)
27th March 2026
38AQI (US)
28th March 2026
34AQI (US)
29th March 2026
29AQI (US)
30th March 2026
28AQI (US)
31st March 2026
28AQI (US)
1st April 2026
32AQI (US)
2nd April 2026
31AQI (US)
3rd April 2026
30AQI (US)
4th April 2026
35AQI (US)
5th April 2026
37AQI (US)
6th April 2026
40AQI (US)
7th April 2026
38AQI (US)
8th April 2026
44AQI (US)
9th April 2026
32AQI (US)
10th April 2026
45AQI (US)
11th April 2026
40AQI (US)
12th April 2026
39AQI (US)
13th April 2026
36AQI (US)
14th April 2026
40AQI (US)
15th April 2026
38AQI (US)
16th April 2026
37AQI (US)
17th April 2026
18th April 2026
44AQI (US)
19th April 2026
27AQI (US)
20th April 2026
33AQI (US)
21st April 2026
31AQI (US)
22nd April 2026
23rd April 2026
30AQI (US)
24th April 2026
32AQI (US)
25th April 2026
21AQI (US)
26th April 2026
30AQI (US)
27th April 2026
27AQI (US)
28th April 2026
28AQI (US)
29th April 2026
24AQI (US)
30th April 2026
25AQI (US)
1st May 2026
29AQI (US)
2nd May 2026
25AQI (US)
3rd May 2026
30AQI (US)
4th May 2026
39AQI (US)
5th May 2026
39AQI (US)
6th May 2026
33AQI (US)
7th May 2026
25AQI (US)
8th May 2026
26AQI (US)
9th May 2026
10th May 2026
27AQI (US)
11th May 2026
29AQI (US)
12th May 2026
30AQI (US)
13th May 2026
32AQI (US)
14th May 2026
30AQI (US)
15th May 2026
53AQI (US)
16th May 2026
53AQI (US)
17th May 2026
60AQI (US)
18th May 2026
57AQI (US)
19th May 2026
57AQI (US)
20th May 2026
54AQI (US)
21st May 2026
46AQI (US)
22nd May 2026
59AQI (US)
23rd May 2026
51AQI (US)
24th May 2026
46AQI (US)
25th May 2026
44AQI (US)
26th May 2026
28AQI (US)
27th May 2026
29AQI (US)
28th May 2026
27AQI (US)
29th May 2026
26AQI (US)
30th May 2026
28AQI (US)
31st May 2026
30AQI (US)
1st June 2026
34AQI (US)
2nd June 2026
31AQI (US)
3rd June 2026
29AQI (US)
4th June 2026
25AQI (US)
5th June 2026
28AQI (US)
6th June 2026
25AQI (US)
7th June 2026
24AQI (US)
8th June 2026
26AQI (US)
9th June 2026
25AQI (US)
10th June 2026
27AQI (US)
11th June 2026
27AQI (US)
12th June 2026
27AQI (US)
13th June 2026
25AQI (US)
14th June 2026
24AQI (US)
15th June 2026
27AQI (US)
16th June 2026
27AQI (US)
17th June 2026
28AQI (US)
18th June 2026
27AQI (US)
19th June 2026
25AQI (US)
20th June 2026
24AQI (US)
21st June 2026
22AQI (US)
22nd June 2026
25AQI (US)
23rd June 2026
24AQI (US)
24th June 2026
25AQI (US)
25th June 2026
25AQI (US)
26th June 2026
28AQI (US)
27th June 2026
29AQI (US)
28th June 2026
27AQI (US)
29th June 2026
24AQI (US)
30th June 2026
27AQI (US)
1st July 2026
26AQI (US)
2nd July 2026
28AQI (US)
3rd July 2026
28AQI (US)
4th July 2026
25AQI (US)
5th July 2026
24AQI (US)
6th July 2026
18AQI (US)
7th July 2026
30AQI (US)
8th July 2026
27AQI (US)
9th July 2026
29AQI (US)
10th July 2026
32AQI (US)
11th July 2026
30AQI (US)
12th July 2026
30AQI (US)
13th July 2026
31AQI (US)
14th July 2026
30AQI (US)
15th July 2026
28AQI (US)
16th July 2026
29AQI (US)
17th July 2026
46AQI (US)
18th July 2026
46AQI (US)
19th July 2026
41AQI (US)
20th July 2026
42AQI (US)
21st July 2026
44AQI (US)
22nd July 2026
37AQI (US)
23rd July 2026
32AQI (US)
24th July 2026
44AQI (US)
25th July 2026
48AQI (US)
26th July 2026
41AQI (US)
27th July 2026
40AQI (US)
28th July 2026
38AQI (US)
29th July 2026
40AQI (US)
30th July 2026
47AQI (US)
31st July 2026
49AQI (US)
1st August 2026
45AQI (US)
2nd August 2026
45AQI (US)
3rd August 2026
44AQI (US)
4th August 2026
41AQI (US)
5th August 2026
43AQI (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

30AQI (US)

44AQI (US)

34AQI (US)

34AQI (US)

38AQI (US)

26AQI (US)

35AQI (US)

44AQI (US)

No. of days

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

202635AQI (US)

26
5
21
7
30
1
28
22
8
30
31
5
193
21

Highest AQI (US) recorded in

February

44AQI (US)

Lowest AQI (US) recorded in

June

26AQI (US)

202528AQI (US)

31
28
16
15
30
31
30
31
31
30
31
30
31
350
15

Highest AQI (US) recorded in

March

46AQI (US)

Lowest AQI (US) recorded in

June

20AQI (US)

202419AQI (US)

31
29
31
30
31
29
31
31
30
31
30
31
365

Highest AQI (US) recorded in

December

33AQI (US)

Lowest AQI (US) recorded in

August

16AQI (US)

202316AQI (US)

31
28
31
29
31
30
31
31
30
31
29
31
363

Highest AQI (US) recorded in

March

19AQI (US)

Lowest AQI (US) recorded in

December

15AQI (US)

202217AQI (US)

29
22
31
23
31
29
23
2
29
28
30
31
308

Highest AQI (US) recorded in

April

22AQI (US)

Lowest AQI (US) recorded in

August

10AQI (US)

202114AQI (US)

27
28
30
30
31
30
31
29
27
31
30
31
355

Highest AQI (US) recorded in

July

18AQI (US)

Lowest AQI (US) recorded in

April

9AQI (US)

202020AQI (US)

13
20
19
30
31
31
30
31
28
31
264

Highest AQI (US) recorded in

July

24AQI (US)

Lowest AQI (US) recorded in

November

16AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2026(Avg.)
35AQI (US)
Least Polluted Year Recorded
2021(Avg.)
14AQI (US)

Hilo's annual 2026 AQI (US) (35) shows an average percentage change of 93.1% (worsened AQI (US)) compared to previous years: 2020 (20), 2021 (14), 2022 (17), 2023 (16), 2024 (19), 2025 (28).