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HistoryAQIPM2.5PM10COSO2NO2O3

Downtown, Honolulu, 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+

October Air Quality Analysis

Downtown, Honolulu, Hawaii, United States

2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
2nd Oct 2025
24AQI
Lowest AQI recorded on
1st Oct 2025
20AQI

Same Day Analysis (2nd October ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 24 of Good air quality on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 2nd Oct - 3rd Oct 2025

Downtown, Honolulu, Hawaii, United States

AQI
Day
Night
.

6 AM2nd Oct 2025

6 PM

5 AM3rd Oct 2025

Day time
Avg. Highest Time
5PM2nd Oct

48AQI

Avg. Lowest Time
6AM2nd Oct

17AQI

Night time
Avg. Highest Time
5AM3rd Oct

46AQI

Avg. Lowest Time
2AM3rd Oct

10AQI

In the last 24 hours,

Downtown's AQI reached its highest point of 48 at 5 PM during the Day, while the lowest point, 10, was recorded at 2 AM during the Night between 2nd Oct and 3rd Oct 2025.

Day & Night AQI Trend : Sep - Oct 2025

Downtown, Honolulu, Hawaii, United States

SepOct
03rd - 04th04th - 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 - 01st01st - 02nd02nd - 03rd03rd
Day
Night
3rd Sep 2025186 AMAQI
3rd Sep 2025207 AMAQI
3rd Sep 2025238 AMAQI
3rd Sep 2025209 AMAQI
3rd Sep 20252010 AMAQI
3rd Sep 20252011 AMAQI
3rd Sep 20252012 PMAQI
3rd Sep 2025201 PMAQI
3rd Sep 2025222 PMAQI
3rd Sep 2025223 PMAQI
3rd Sep 2025244 PMAQI
3rd Sep 2025255 PMAQI
3rd Sep 2025246 PMAQI
3rd Sep 2025197 PMAQI
3rd Sep 2025228 PMAQI
3rd Sep 2025249 PMAQI
3rd Sep 20252410 PMAQI
3rd Sep 20252411 PMAQI
4th Sep 20252212 AMAQI
4th Sep 2025201 AMAQI
4th Sep 2025222 AMAQI
4th Sep 2025183 AMAQI
4th Sep 2025154 AMAQI
4th Sep 2025155 AMAQI

--°C/°C

4th Sep 2025156 AMAQI
4th Sep 2025157 AMAQI
4th Sep 2025138 AMAQI
4th Sep 2025119 AMAQI
4th Sep 20251110 AMAQI
4th Sep 20251411 AMAQI
4th Sep 20251612 PMAQI
4th Sep 2025191 PMAQI
4th Sep 2025202 PMAQI
4th Sep 2025223 PMAQI
4th Sep 2025234 PMAQI
4th Sep 2025215 PMAQI
4th Sep 2025226 PMAQI
4th Sep 2025217 PMAQI
4th Sep 2025208 PMAQI
4th Sep 2025209 PMAQI
4th Sep 20251810 PMAQI
4th Sep 20252011 PMAQI
5th Sep 20251812 AMAQI
5th Sep 2025211 AMAQI
5th Sep 2025202 AMAQI
5th Sep 2025213 AMAQI
5th Sep 2025194 AMAQI
5th Sep 2025305 AMAQI

26°C25/27°C

5th Sep 2025206 AMAQI
5th Sep 2025187 AMAQI
5th Sep 2025188 AMAQI
5th Sep 2025199 AMAQI
5th Sep 20251810 AMAQI
5th Sep 20251811 AMAQI
5th Sep 20252212 PMAQI
5th Sep 2025161 PMAQI
5th Sep 2025162 PMAQI
5th Sep 2025173 PMAQI
5th Sep 2025184 PMAQI
5th Sep 2025175 PMAQI
5th Sep 2025146 PMAQI
5th Sep 2025187 PMAQI
5th Sep 2025188 PMAQI
5th Sep 2025189 PMAQI
5th Sep 20251810 PMAQI
5th Sep 20251611 PMAQI
6th Sep 20251712 AMAQI
6th Sep 2025161 AMAQI
6th Sep 2025182 AMAQI
6th Sep 2025183 AMAQI
6th Sep 2025224 AMAQI
6th Sep 2025165 AMAQI

26°C25/27°C

6th Sep 2025186 AMAQI
6th Sep 2025177 AMAQI
6th Sep 2025168 AMAQI
6th Sep 2025169 AMAQI
6th Sep 20251610 AMAQI
6th Sep 20251711 AMAQI
6th Sep 20251612 PMAQI
6th Sep 2025151 PMAQI
6th Sep 2025172 PMAQI
6th Sep 2025183 PMAQI
6th Sep 2025184 PMAQI
6th Sep 2025225 PMAQI
6th Sep 2025176 PMAQI
6th Sep 2025187 PMAQI
6th Sep 2025198 PMAQI
6th Sep 2025199 PMAQI
6th Sep 20252010 PMAQI
6th Sep 20252011 PMAQI
7th Sep 20252012 AMAQI
7th Sep 2025201 AMAQI
7th Sep 2025212 AMAQI
7th Sep 2025213 AMAQI
7th Sep 2025234 AMAQI
7th Sep 2025195 AMAQI

26°C25/28°C

7th Sep 2025186 AMAQI
7th Sep 2025187 AMAQI
7th Sep 2025208 AMAQI
7th Sep 2025189 AMAQI
7th Sep 20251810 AMAQI
7th Sep 20251911 AMAQI
7th Sep 20251812 PMAQI
7th Sep 2025201 PMAQI
7th Sep 2025202 PMAQI
7th Sep 2025223 PMAQI
7th Sep 2025224 PMAQI
7th Sep 2025315 PMAQI
7th Sep 2025266 PMAQI
7th Sep 2025207 PMAQI
7th Sep 2025198 PMAQI
7th Sep 2025199 PMAQI
7th Sep 20252210 PMAQI
7th Sep 20251811 PMAQI
8th Sep 20252012 AMAQI
8th Sep 2025211 AMAQI
8th Sep 2025222 AMAQI
8th Sep 2025223 AMAQI
8th Sep 2025214 AMAQI
8th Sep 2025255 AMAQI

26°C24/27°C

8th Sep 2025226 AMAQI
8th Sep 2025207 AMAQI
8th Sep 2025228 AMAQI
8th Sep 2025209 AMAQI
8th Sep 20252110 AMAQI
8th Sep 20252211 AMAQI
8th Sep 20252212 PMAQI
8th Sep 2025211 PMAQI
8th Sep 2025262 PMAQI
8th Sep 2025253 PMAQI
8th Sep 2025264 PMAQI
8th Sep 2025225 PMAQI
8th Sep 2025206 PMAQI
8th Sep 2025217 PMAQI
8th Sep 2025208 PMAQI
8th Sep 2025199 PMAQI
8th Sep 20251810 PMAQI
8th Sep 20251911 PMAQI
9th Sep 20251812 AMAQI
9th Sep 2025161 AMAQI
9th Sep 2025182 AMAQI
9th Sep 2025183 AMAQI
9th Sep 2025204 AMAQI
9th Sep 2025195 AMAQI

26°C25/27°C

9th Sep 2025186 AMAQI
9th Sep 2025167 AMAQI
9th Sep 2025178 AMAQI
9th Sep 2025179 AMAQI
9th Sep 20252410 AMAQI
9th Sep 20252111 AMAQI
9th Sep 20252212 PMAQI
9th Sep 2025261 PMAQI
9th Sep 2025292 PMAQI
9th Sep 2025303 PMAQI
9th Sep 2025304 PMAQI
9th Sep 2025305 PMAQI
9th Sep 2025256 PMAQI
9th Sep 2025187 PMAQI
9th Sep 2025228 PMAQI
9th Sep 2025259 PMAQI
9th Sep 20252410 PMAQI
9th Sep 20252211 PMAQI
10th Sep 20252012 AMAQI
10th Sep 2025191 AMAQI
10th Sep 2025172 AMAQI
10th Sep 2025173 AMAQI
10th Sep 2025184 AMAQI
10th Sep 2025265 AMAQI

26°C25/28°C

10th Sep 2025186 AMAQI
10th Sep 2025147 AMAQI
10th Sep 2025208 AMAQI
10th Sep 2025189 AMAQI
10th Sep 20252010 AMAQI
10th Sep 20252011 AMAQI
10th Sep 20252312 PMAQI
10th Sep 2025181 PMAQI
10th Sep 2025182 PMAQI
10th Sep 2025203 PMAQI
10th Sep 2025214 PMAQI
10th Sep 2025205 PMAQI
10th Sep 2025206 PMAQI
10th Sep 2025207 PMAQI
10th Sep 2025208 PMAQI
10th Sep 2025259 PMAQI
10th Sep 20252610 PMAQI
10th Sep 20252611 PMAQI
11th Sep 20252512 AMAQI
11th Sep 2025241 AMAQI
11th Sep 2025262 AMAQI
11th Sep 2025263 AMAQI
11th Sep 2025354 AMAQI
11th Sep 2025305 AMAQI

26°C25/27°C

11th Sep 2025306 AMAQI
11th Sep 2025287 AMAQI
11th Sep 2025288 AMAQI
11th Sep 2025289 AMAQI
11th Sep 20252810 AMAQI
11th Sep 20252811 AMAQI
11th Sep 20252712 PMAQI
11th Sep 2025261 PMAQI
11th Sep 2025262 PMAQI
11th Sep 2025243 PMAQI
11th Sep 2025224 PMAQI
11th Sep 2025245 PMAQI
11th Sep 2025226 PMAQI
11th Sep 2025267 PMAQI
11th Sep 2025258 PMAQI
11th Sep 2025229 PMAQI
11th Sep 20252210 PMAQI
11th Sep 20252111 PMAQI
12th Sep 20252312 AMAQI
12th Sep 2025231 AMAQI
12th Sep 2025222 AMAQI
12th Sep 2025243 AMAQI
12th Sep 2025264 AMAQI
12th Sep 2025255 AMAQI

26°C25/27°C

12th Sep 2025226 AMAQI
12th Sep 2025207 AMAQI
12th Sep 2025208 AMAQI
12th Sep 2025199 AMAQI
12th Sep 20252010 AMAQI
12th Sep 20252111 AMAQI
12th Sep 20252112 PMAQI
12th Sep 2025241 PMAQI
12th Sep 2025262 PMAQI
12th Sep 2025283 PMAQI
12th Sep 2025314 PMAQI
12th Sep 2025315 PMAQI
12th Sep 2025306 PMAQI
12th Sep 2025227 PMAQI
12th Sep 2025228 PMAQI
12th Sep 2025229 PMAQI
12th Sep 20252310 PMAQI
12th Sep 20252311 PMAQI
13th Sep 20252412 AMAQI
13th Sep 2025231 AMAQI
13th Sep 2025242 AMAQI
13th Sep 2025233 AMAQI
13th Sep 2025214 AMAQI
13th Sep 2025225 AMAQI

26°C25/27°C

13th Sep 2025246 AMAQI
13th Sep 2025237 AMAQI
13th Sep 2025248 AMAQI
13th Sep 2025269 AMAQI
13th Sep 20252310 AMAQI
13th Sep 20252511 AMAQI
13th Sep 20252412 PMAQI
13th Sep 2025211 PMAQI
13th Sep 2025242 PMAQI
13th Sep 2025253 PMAQI
13th Sep 2025244 PMAQI
13th Sep 2025305 PMAQI
13th Sep 2025266 PMAQI
13th Sep 2025237 PMAQI
13th Sep 2025228 PMAQI
13th Sep 2025229 PMAQI
13th Sep 20252310 PMAQI
13th Sep 20252611 PMAQI
14th Sep 20252612 AMAQI
14th Sep 2025251 AMAQI
14th Sep 2025282 AMAQI
14th Sep 2025273 AMAQI
14th Sep 2025244 AMAQI
14th Sep 2025265 AMAQI

26°C25/27°C

14th Sep 2025246 AMAQI
14th Sep 2025247 AMAQI
14th Sep 2025248 AMAQI
14th Sep 2025259 AMAQI
14th Sep 20252410 AMAQI
14th Sep 20252311 AMAQI
14th Sep 20252212 PMAQI
14th Sep 2025281 PMAQI
14th Sep 2025342 PMAQI
14th Sep 2025323 PMAQI
14th Sep 2025284 PMAQI
14th Sep 2025275 PMAQI
14th Sep 2025276 PMAQI
14th Sep 2025257 PMAQI
14th Sep 2025228 PMAQI
14th Sep 2025269 PMAQI
14th Sep 20253210 PMAQI
14th Sep 20252411 PMAQI
15th Sep 20252512 AMAQI
15th Sep 2025261 AMAQI
15th Sep 2025272 AMAQI
15th Sep 2025263 AMAQI
15th Sep 2025314 AMAQI
15th Sep 2025285 AMAQI

26°C25/27°C

15th Sep 2025276 AMAQI
15th Sep 2025417 AMAQI
15th Sep 2025488 AMAQI
15th Sep 2025429 AMAQI
15th Sep 20252610 AMAQI
15th Sep 20252811 AMAQI
15th Sep 20252512 PMAQI
15th Sep 2025301 PMAQI
15th Sep 2025332 PMAQI
15th Sep 2025293 PMAQI
15th Sep 2025334 PMAQI
15th Sep 2025325 PMAQI
15th Sep 2025376 PMAQI
15th Sep 2025297 PMAQI
15th Sep 2025328 PMAQI
15th Sep 2025329 PMAQI
15th Sep 20253010 PMAQI
15th Sep 20252811 PMAQI
16th Sep 20252612 AMAQI
16th Sep 2025261 AMAQI
16th Sep 2025282 AMAQI
16th Sep 2025283 AMAQI
16th Sep 2025284 AMAQI
16th Sep 2025265 AMAQI

26°C25/27°C

16th Sep 2025276 AMAQI
16th Sep 2025307 AMAQI
16th Sep 2025298 AMAQI
16th Sep 2025329 AMAQI
16th Sep 20252910 AMAQI
16th Sep 20252911 AMAQI
16th Sep 20252612 PMAQI
16th Sep 2025261 PMAQI
16th Sep 2025282 PMAQI
16th Sep 2025263 PMAQI
16th Sep 2025264 PMAQI
16th Sep 2025245 PMAQI
16th Sep 2025246 PMAQI
16th Sep 2025267 PMAQI
16th Sep 2025248 PMAQI
16th Sep 2025269 PMAQI
16th Sep 20252110 PMAQI
16th Sep 20253411 PMAQI
17th Sep 20251812 AMAQI
17th Sep 2025221 AMAQI
17th Sep 2025192 AMAQI
17th Sep 2025203 AMAQI
17th Sep 2025264 AMAQI
17th Sep 2025225 AMAQI

26°C25/27°C

17th Sep 2025226 AMAQI
17th Sep 2025207 AMAQI
17th Sep 2025228 AMAQI
17th Sep 2025229 AMAQI
17th Sep 20252210 AMAQI
17th Sep 20252211 AMAQI
17th Sep 20252412 PMAQI
17th Sep 2025231 PMAQI
17th Sep 2025222 PMAQI
17th Sep 2025253 PMAQI
17th Sep 2025244 PMAQI
17th Sep 2025245 PMAQI
17th Sep 2025246 PMAQI
17th Sep 2025227 PMAQI
17th Sep 2025228 PMAQI
17th Sep 2025239 PMAQI
17th Sep 20252010 PMAQI
17th Sep 20252011 PMAQI
18th Sep 20252412 AMAQI
18th Sep 2025201 AMAQI
18th Sep 2025222 AMAQI
18th Sep 2025243 AMAQI
18th Sep 2025264 AMAQI
18th Sep 2025225 AMAQI

26°C25/27°C

18th Sep 2025266 AMAQI
18th Sep 2025247 AMAQI
18th Sep 2025258 AMAQI
18th Sep 2025259 AMAQI
18th Sep 20252410 AMAQI
18th Sep 20252611 AMAQI
18th Sep 20252512 PMAQI
18th Sep 2025261 PMAQI
18th Sep 2025272 PMAQI
18th Sep 2025293 PMAQI
18th Sep 2025264 PMAQI
18th Sep 2025255 PMAQI
18th Sep 2025246 PMAQI
18th Sep 2025247 PMAQI
18th Sep 2025258 PMAQI
18th Sep 2025239 PMAQI
18th Sep 20252210 PMAQI
18th Sep 20252211 PMAQI
19th Sep 20252212 AMAQI
19th Sep 2025221 AMAQI
19th Sep 2025232 AMAQI
19th Sep 2025243 AMAQI
19th Sep 2025224 AMAQI
19th Sep 2025215 AMAQI

26°C25/27°C

19th Sep 2025226 AMAQI
19th Sep 2025227 AMAQI
19th Sep 2025218 AMAQI
19th Sep 2025229 AMAQI
19th Sep 20252410 AMAQI
19th Sep 20252211 AMAQI
19th Sep 20252312 PMAQI
19th Sep 2025241 PMAQI
19th Sep 2025212 PMAQI
19th Sep 2025243 PMAQI
19th Sep 2025234 PMAQI
19th Sep 2025205 PMAQI
19th Sep 2025206 PMAQI
19th Sep 2025227 PMAQI
19th Sep 2025218 PMAQI
19th Sep 2025219 PMAQI
19th Sep 20252010 PMAQI
19th Sep 20252011 PMAQI
20th Sep 20252112 AMAQI
20th Sep 2025201 AMAQI
20th Sep 2025232 AMAQI
20th Sep 2025243 AMAQI
20th Sep 2025274 AMAQI
20th Sep 2025305 AMAQI

26°C25/27°C

20th Sep 2025266 AMAQI
20th Sep 2025277 AMAQI
20th Sep 2025278 AMAQI
20th Sep 2025289 AMAQI
20th Sep 20252910 AMAQI
20th Sep 20253211 AMAQI
20th Sep 20253512 PMAQI
20th Sep 2025301 PMAQI
20th Sep 2025302 PMAQI
20th Sep 2025283 PMAQI
20th Sep 2025264 PMAQI
20th Sep 2025255 PMAQI
20th Sep 2025246 PMAQI
20th Sep 2025257 PMAQI
20th Sep 2025258 PMAQI
20th Sep 2025209 PMAQI
20th Sep 20252010 PMAQI
20th Sep 20252011 PMAQI
21st Sep 20251812 AMAQI
21st Sep 2025191 AMAQI
21st Sep 2025212 AMAQI
21st Sep 2025263 AMAQI
21st Sep 2025284 AMAQI
21st Sep 2025305 AMAQI

26°C25/27°C

21st Sep 2025246 AMAQI
21st Sep 2025257 AMAQI
21st Sep 2025238 AMAQI
21st Sep 2025229 AMAQI
21st Sep 20252210 AMAQI
21st Sep 20252211 AMAQI
21st Sep 20252212 PMAQI
21st Sep 2025191 PMAQI
21st Sep 2025212 PMAQI
21st Sep 2025233 PMAQI
21st Sep 2025224 PMAQI
21st Sep 2025225 PMAQI
21st Sep 2025216 PMAQI
21st Sep 2025257 PMAQI
21st Sep 2025238 PMAQI
21st Sep 2025229 PMAQI
21st Sep 20252410 PMAQI
21st Sep 20252411 PMAQI
22nd Sep 20252412 AMAQI
22nd Sep 2025231 AMAQI
22nd Sep 2025272 AMAQI
22nd Sep 2025273 AMAQI
22nd Sep 2025244 AMAQI
22nd Sep 2025225 AMAQI

26°C25/27°C

22nd Sep 2025226 AMAQI
22nd Sep 2025247 AMAQI
22nd Sep 2025228 AMAQI
22nd Sep 2025239 AMAQI
22nd Sep 20252610 AMAQI
22nd Sep 20252511 AMAQI
22nd Sep 20252712 PMAQI
22nd Sep 2025251 PMAQI
22nd Sep 2025262 PMAQI
22nd Sep 2025253 PMAQI
22nd Sep 2025254 PMAQI
22nd Sep 2025245 PMAQI
22nd Sep 2025266 PMAQI
22nd Sep 2025267 PMAQI
22nd Sep 2025248 PMAQI
22nd Sep 2025229 PMAQI
22nd Sep 20252310 PMAQI
22nd Sep 20252211 PMAQI
23rd Sep 20252212 AMAQI
23rd Sep 2025201 AMAQI
23rd Sep 2025242 AMAQI
23rd Sep 2025243 AMAQI
23rd Sep 2025244 AMAQI
23rd Sep 2025315 AMAQI

25°C25/27°C

23rd Sep 2025306 AMAQI
23rd Sep 2025297 AMAQI
23rd Sep 2025288 AMAQI
23rd Sep 2025289 AMAQI
23rd Sep 20252810 AMAQI
23rd Sep 20252911 AMAQI
23rd Sep 20253412 PMAQI
23rd Sep 2025321 PMAQI
23rd Sep 2025322 PMAQI
23rd Sep 2025343 PMAQI
23rd Sep 2025304 PMAQI
23rd Sep 2025315 PMAQI
23rd Sep 2025296 PMAQI
23rd Sep 2025277 PMAQI
23rd Sep 2025288 PMAQI
23rd Sep 2025269 PMAQI
23rd Sep 20252510 PMAQI
23rd Sep 20252211 PMAQI
24th Sep 20252212 AMAQI
24th Sep 2025221 AMAQI
24th Sep 2025262 AMAQI
24th Sep 2025263 AMAQI
24th Sep 2025254 AMAQI
24th Sep 2025225 AMAQI

25°C24/27°C

24th Sep 2025206 AMAQI
24th Sep 2025207 AMAQI
24th Sep 2025198 AMAQI
24th Sep 2025209 AMAQI
24th Sep 20252310 AMAQI
24th Sep 20252211 AMAQI
24th Sep 20252012 PMAQI
24th Sep 2025201 PMAQI
24th Sep 2025202 PMAQI
24th Sep 2025233 PMAQI
24th Sep 2025224 PMAQI
24th Sep 2025225 PMAQI
24th Sep 2025266 PMAQI
24th Sep 2025227 PMAQI
24th Sep 2025238 PMAQI
24th Sep 2025249 PMAQI
24th Sep 20252510 PMAQI
24th Sep 20252411 PMAQI
25th Sep 20251912 AMAQI
25th Sep 2025171 AMAQI
25th Sep 2025172 AMAQI
25th Sep 2025163 AMAQI
25th Sep 2025164 AMAQI
25th Sep 2025165 AMAQI

26°C24/27°C

25th Sep 2025176 AMAQI
25th Sep 2025177 AMAQI
25th Sep 2025178 AMAQI
25th Sep 2025179 AMAQI
25th Sep 20251710 AMAQI
25th Sep 20251711 AMAQI
25th Sep 20251712 PMAQI
25th Sep 2025181 PMAQI
25th Sep 2025182 PMAQI
25th Sep 2025183 PMAQI
25th Sep 2025184 PMAQI
25th Sep 2025185 PMAQI
25th Sep 2025196 PMAQI
25th Sep 2025207 PMAQI
25th Sep 2025208 PMAQI
25th Sep 2025199 PMAQI
25th Sep 20251910 PMAQI
25th Sep 20251911 PMAQI
26th Sep 20251812 AMAQI
26th Sep 2025171 AMAQI
26th Sep 2025162 AMAQI
26th Sep 2025173 AMAQI
26th Sep 2025174 AMAQI
26th Sep 2025185 AMAQI

25°C24/26°C

26th Sep 2025186 AMAQI
26th Sep 2025177 AMAQI
26th Sep 2025178 AMAQI
26th Sep 2025169 AMAQI
26th Sep 20251710 AMAQI
26th Sep 20251711 AMAQI
26th Sep 20251712 PMAQI
26th Sep 2025191 PMAQI
26th Sep 2025162 PMAQI
26th Sep 2025163 PMAQI
26th Sep 2025214 PMAQI
26th Sep 2025235 PMAQI
26th Sep 2025226 PMAQI
26th Sep 2025207 PMAQI
26th Sep 2025168 PMAQI
26th Sep 2025149 PMAQI
26th Sep 20251510 PMAQI
26th Sep 20251911 PMAQI
27th Sep 20251512 AMAQI
27th Sep 2025131 AMAQI
27th Sep 2025172 AMAQI
27th Sep 2025183 AMAQI
27th Sep 2025194 AMAQI
27th Sep 2025185 AMAQI

26°C25/27°C

27th Sep 2025176 AMAQI
27th Sep 2025157 AMAQI
27th Sep 2025118 AMAQI
27th Sep 2025119 AMAQI
27th Sep 20251110 AMAQI
27th Sep 20251611 AMAQI
27th Sep 20251512 PMAQI
27th Sep 2025151 PMAQI
27th Sep 2025202 PMAQI
27th Sep 2025233 PMAQI
27th Sep 2025164 PMAQI
27th Sep 2025175 PMAQI
27th Sep 2025156 PMAQI
27th Sep 2025137 PMAQI
27th Sep 2025128 PMAQI
27th Sep 2025139 PMAQI
27th Sep 20251510 PMAQI
27th Sep 20251311 PMAQI
28th Sep 20251512 AMAQI
28th Sep 2025111 AMAQI
28th Sep 2025112 AMAQI
28th Sep 2025103 AMAQI
28th Sep 2025104 AMAQI
28th Sep 2025105 AMAQI

26°C25/28°C

28th Sep 2025116 AMAQI
28th Sep 2025107 AMAQI
28th Sep 202598 AMAQI
28th Sep 2025119 AMAQI
28th Sep 20251110 AMAQI
28th Sep 20251211 AMAQI
28th Sep 20251112 PMAQI
28th Sep 2025161 PMAQI
28th Sep 2025212 PMAQI
28th Sep 2025203 PMAQI
28th Sep 2025184 PMAQI
28th Sep 2025215 PMAQI
28th Sep 2025206 PMAQI
28th Sep 2025207 PMAQI
28th Sep 2025228 PMAQI
28th Sep 2025229 PMAQI
28th Sep 20251510 PMAQI
28th Sep 20251611 PMAQI
29th Sep 20251212 AMAQI
29th Sep 2025171 AMAQI
29th Sep 2025162 AMAQI
29th Sep 2025163 AMAQI
29th Sep 2025134 AMAQI
29th Sep 2025135 AMAQI

26°C25/27°C

29th Sep 2025166 AMAQI
29th Sep 2025207 AMAQI
29th Sep 2025188 AMAQI
29th Sep 2025279 AMAQI
29th Sep 20251910 AMAQI
29th Sep 20252311 AMAQI
29th Sep 20251712 PMAQI
29th Sep 2025231 PMAQI
29th Sep 2025342 PMAQI
29th Sep 2025223 PMAQI
29th Sep 2025324 PMAQI
29th Sep 2025385 PMAQI
29th Sep 2025366 PMAQI
29th Sep 2025277 PMAQI
29th Sep 2025208 PMAQI
29th Sep 2025219 PMAQI
29th Sep 20252010 PMAQI
29th Sep 20251811 PMAQI
30th Sep 20252012 AMAQI
30th Sep 2025161 AMAQI
30th Sep 2025162 AMAQI
30th Sep 2025153 AMAQI
30th Sep 2025174 AMAQI
30th Sep 2025215 AMAQI

26°C25/27°C

30th Sep 2025216 AMAQI
30th Sep 2025187 AMAQI
30th Sep 2025158 AMAQI
30th Sep 2025199 AMAQI
30th Sep 20251910 AMAQI
30th Sep 20251211 AMAQI
30th Sep 20251312 PMAQI
30th Sep 2025131 PMAQI
30th Sep 2025142 PMAQI
30th Sep 2025163 PMAQI
30th Sep 2025134 PMAQI
30th Sep 2025195 PMAQI
30th Sep 2025236 PMAQI
30th Sep 2025177 PMAQI
30th Sep 2025198 PMAQI
30th Sep 2025249 PMAQI
30th Sep 20251610 PMAQI
30th Sep 20251911 PMAQI
1st Oct 20253112 AMAQI
1st Oct 2025281 AMAQI
1st Oct 2025192 AMAQI
1st Oct 2025143 AMAQI
1st Oct 2025144 AMAQI
1st Oct 2025135 AMAQI

26°C25/27°C

1st Oct 2025106 AMAQI
1st Oct 2025157 AMAQI
1st Oct 2025308 AMAQI
1st Oct 2025329 AMAQI
1st Oct 20252210 AMAQI
1st Oct 20252211 AMAQI
1st Oct 20253012 PMAQI
1st Oct 2025261 PMAQI
1st Oct 202572 PMAQI
1st Oct 2025203 PMAQI
1st Oct 2025264 PMAQI
1st Oct 2025225 PMAQI
1st Oct 2025216 PMAQI
1st Oct 2025307 PMAQI
1st Oct 2025328 PMAQI
1st Oct 2025279 PMAQI
1st Oct 2025610 PMAQI
1st Oct 2025611 PMAQI
2nd Oct 2025512 AMAQI
2nd Oct 202561 AMAQI
2nd Oct 202562 AMAQI
2nd Oct 202563 AMAQI
2nd Oct 2025164 AMAQI
2nd Oct 2025285 AMAQI

26°C25/27°C

2nd Oct 2025176 AMAQI
2nd Oct 2025387 AMAQI
2nd Oct 2025358 AMAQI
2nd Oct 2025279 AMAQI
2nd Oct 20254110 AMAQI
2nd Oct 20253611 AMAQI
2nd Oct 20254012 PMAQI
2nd Oct 2025361 PMAQI
2nd Oct 2025352 PMAQI
2nd Oct 2025363 PMAQI
2nd Oct 2025374 PMAQI
2nd Oct 2025485 PMAQI
2nd Oct 2025466 PMAQI
2nd Oct 2025427 PMAQI
2nd Oct 2025418 PMAQI
2nd Oct 2025119 PMAQI
2nd Oct 20251810 PMAQI
2nd Oct 20252711 PMAQI
3rd Oct 20251612 AMAQI
3rd Oct 2025221 AMAQI
3rd Oct 2025102 AMAQI
3rd Oct 2025113 AMAQI
3rd Oct 2025214 AMAQI
3rd Oct 2025465 AMAQI

26°C25/27°C

3rd Oct 2025526 AMAQI
6 AM
3rd Oct 2025557 AMAQI
3rd Oct 2025528 AMAQI
3rd Oct 2025399 AMAQI
3rd Oct 20252810 AMAQI
3rd Oct 20255011 AMAQI
3rd Oct 20255312 PMAQI
12 PM
3rd Oct 2025521 PMAQI
3rd Oct 2025402 PMAQI
3rd Oct 2025453 PMAQI
3rd Oct 2025344 PMAQI
3rd Oct 2025145 PMAQI
6 PM
12 AM
5 AM

26°C25/27°C

Day time
Avg. Highest Time
3 PM

25AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
6 AM

22AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 3 PM to 3 PM (Avg. 25), while the lowest AQI was between 6 AM to 6 AM (Avg. 22).
Night time
Avg. Highest Time
5 AM - 8 PM

23AQI

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

20AQI

4 hours / Day
120 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 8 PM (Avg. 23), while the lowest AQI was between 12 AM to 3 AM (Avg. 20).

2025 Days Vs Air Quality

Downtown, Honolulu, Hawaii, United States

2025

99%

190

0.5%

1

Total number of days with different AQI categories in last 277 days in 2025 (88 days remaining)

Good
190 Days
Moderate
1 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 99%

Health Risk Level:

Very Low

In 2025, 99% of 277 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

Downtown, Honolulu, Hawaii, United States

AQI levels in 2025

AQI
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 2025
-1th undefined 2025
-1th undefined 2025
1st January 2025
2nd January 2025
3rd January 2025
4th January 2025
5th January 2025
6th January 2025
7th January 2025
8th January 2025
9th January 2025
10th January 2025
11th January 2025
12th January 2025
13th January 2025
14th January 2025
15th January 2025
16th January 2025
17th January 2025
18th January 2025
19th January 2025
20th January 2025
21st January 2025
22nd January 2025
23rd January 2025
24th January 2025
25th January 2025
26th January 2025
27th January 2025
28th January 2025
29th January 2025
30th January 2025
31st January 2025
1st February 2025
2nd February 2025
3rd February 2025
4th February 2025
5th February 2025
6th February 2025
7th February 2025
8th February 2025
9th February 2025
10th February 2025
11th February 2025
12th February 2025
13th February 2025
14th February 2025
15th February 2025
16th February 2025
17th February 2025
18th February 2025
19th February 2025
20th February 2025
21st February 2025
22nd February 2025
23rd February 2025
24th February 2025
25th February 2025
26th February 2025
27th February 2025
28th February 2025
1st March 2025
2nd March 2025
3rd March 2025
4th March 2025
5th March 2025
6th March 2025
7th March 2025
8th March 2025
9th March 2025
10th March 2025
11th March 2025
12th March 2025
13th March 2025
14th March 2025
15th March 2025
16th March 2025
17th March 2025
18th March 2025
19th March 2025
20th March 2025
21st March 2025
22nd March 2025
23rd March 2025
24th March 2025
25th March 2025
26th March 2025
19AQI
27th March 2025
25AQI
28th March 2025
45AQI
29th March 2025
36AQI
30th March 2025
46AQI
31st March 2025
34AQI
1st April 2025
37AQI
2nd April 2025
33AQI
3rd April 2025
36AQI
4th April 2025
46AQI
5th April 2025
30AQI
6th April 2025
23AQI
7th April 2025
26AQI
8th April 2025
23AQI
9th April 2025
18AQI
10th April 2025
18AQI
11th April 2025
27AQI
12th April 2025
22AQI
13th April 2025
28AQI
14th April 2025
23AQI
15th April 2025
24AQI
16th April 2025
23AQI
17th April 2025
21AQI
18th April 2025
22AQI
19th April 2025
20AQI
20th April 2025
19AQI
21st April 2025
21AQI
22nd April 2025
20AQI
23rd April 2025
32AQI
24th April 2025
39AQI
25th April 2025
51AQI
26th April 2025
42AQI
27th April 2025
40AQI
28th April 2025
36AQI
29th April 2025
34AQI
30th April 2025
26AQI
1st May 2025
25AQI
2nd May 2025
28AQI
3rd May 2025
23AQI
4th May 2025
24AQI
5th May 2025
29AQI
6th May 2025
25AQI
7th May 2025
24AQI
8th May 2025
21AQI
9th May 2025
24AQI
10th May 2025
24AQI
11th May 2025
30AQI
12th May 2025
24AQI
13th May 2025
27AQI
14th May 2025
23AQI
15th May 2025
26AQI
16th May 2025
25AQI
17th May 2025
29AQI
18th May 2025
34AQI
19th May 2025
26AQI
20th May 2025
21AQI
21st May 2025
21AQI
22nd May 2025
21AQI
23rd May 2025
25AQI
24th May 2025
28AQI
25th May 2025
28AQI
26th May 2025
27AQI
27th May 2025
28AQI
28th May 2025
24AQI
29th May 2025
20AQI
30th May 2025
22AQI
31st May 2025
23AQI
1st June 2025
21AQI
2nd June 2025
27AQI
3rd June 2025
28AQI
4th June 2025
27AQI
5th June 2025
26AQI
6th June 2025
33AQI
7th June 2025
19AQI
8th June 2025
20AQI
9th June 2025
18AQI
10th June 2025
19AQI
11th June 2025
21AQI
12th June 2025
20AQI
13th June 2025
21AQI
14th June 2025
23AQI
15th June 2025
24AQI
16th June 2025
24AQI
17th June 2025
22AQI
18th June 2025
25AQI
19th June 2025
24AQI
20th June 2025
22AQI
21st June 2025
21AQI
22nd June 2025
25AQI
23rd June 2025
28AQI
24th June 2025
21AQI
25th June 2025
18AQI
26th June 2025
20AQI
27th June 2025
23AQI
28th June 2025
26AQI
29th June 2025
23AQI
30th June 2025
21AQI
1st July 2025
22AQI
2nd July 2025
18AQI
3rd July 2025
22AQI
4th July 2025
22AQI
5th July 2025
25AQI
6th July 2025
24AQI
7th July 2025
30AQI
8th July 2025
24AQI
9th July 2025
23AQI
10th July 2025
24AQI
11th July 2025
23AQI
12th July 2025
21AQI
13th July 2025
23AQI
14th July 2025
23AQI
15th July 2025
21AQI
16th July 2025
22AQI
17th July 2025
21AQI
18th July 2025
20AQI
19th July 2025
22AQI
20th July 2025
22AQI
21st July 2025
24AQI
22nd July 2025
24AQI
23rd July 2025
32AQI
24th July 2025
30AQI
25th July 2025
19AQI
26th July 2025
17AQI
27th July 2025
19AQI
28th July 2025
21AQI
29th July 2025
22AQI
30th July 2025
30AQI
31st July 2025
24AQI
1st August 2025
22AQI
2nd August 2025
20AQI
3rd August 2025
24AQI
4th August 2025
29AQI
5th August 2025
25AQI
6th August 2025
21AQI
7th August 2025
22AQI
8th August 2025
30AQI
9th August 2025
23AQI
10th August 2025
23AQI
11th August 2025
23AQI
12th August 2025
22AQI
13th August 2025
20AQI
14th August 2025
17AQI
15th August 2025
17AQI
16th August 2025
16AQI
17th August 2025
16AQI
18th August 2025
20AQI
19th August 2025
21AQI
20th August 2025
20AQI
21st August 2025
23AQI
22nd August 2025
26AQI
23rd August 2025
32AQI
24th August 2025
30AQI
25th August 2025
24AQI
26th August 2025
29AQI
27th August 2025
28AQI
28th August 2025
24AQI
29th August 2025
22AQI
30th August 2025
21AQI
31st August 2025
24AQI
1st September 2025
23AQI
2nd September 2025
21AQI
3rd September 2025
21AQI
4th September 2025
17AQI
5th September 2025
19AQI
6th September 2025
18AQI
7th September 2025
21AQI
8th September 2025
21AQI
9th September 2025
22AQI
10th September 2025
20AQI
11th September 2025
26AQI
12th September 2025
24AQI
13th September 2025
24AQI
14th September 2025
26AQI
15th September 2025
30AQI
16th September 2025
27AQI
17th September 2025
22AQI
18th September 2025
24AQI
19th September 2025
22AQI
20th September 2025
26AQI
21st September 2025
23AQI
22nd September 2025
24AQI
23rd September 2025
27AQI
24th September 2025
23AQI
25th September 2025
18AQI
26th September 2025
18AQI
27th September 2025
15AQI
28th September 2025
15AQI
29th September 2025
21AQI
30th September 2025
18AQI
1st October 2025
20AQI
2nd October 2025
24AQI
3rd October 2025
4th October 2025
5th October 2025
6th October 2025
7th October 2025
8th October 2025
9th October 2025
10th October 2025
11th October 2025
12th October 2025
13th October 2025
14th October 2025
15th October 2025
16th October 2025
17th October 2025
18th October 2025
19th October 2025
20th October 2025
21st October 2025
22nd October 2025
23rd October 2025
24th October 2025
25th October 2025
26th October 2025
27th October 2025
28th October 2025
29th October 2025
30th October 2025
31st October 2025
1st November 2025
2nd November 2025
3rd November 2025
4th November 2025
5th November 2025
6th November 2025
7th November 2025
8th November 2025
9th November 2025
10th November 2025
11th November 2025
12th November 2025
13th November 2025
14th November 2025
15th November 2025
16th November 2025
17th November 2025
18th November 2025
19th November 2025
20th November 2025
21st November 2025
22nd November 2025
23rd November 2025
24th November 2025
25th November 2025
26th November 2025
27th November 2025
28th November 2025
29th November 2025
30th November 2025
1st December 2025
2nd December 2025
3rd December 2025
4th December 2025
5th December 2025
6th December 2025
7th December 2025
8th December 2025
9th December 2025
10th December 2025
11th December 2025
12th December 2025
13th December 2025
14th December 2025
15th December 2025
16th December 2025
17th December 2025
18th December 2025
19th December 2025
20th December 2025
21st December 2025
22nd December 2025
23rd December 2025
24th December 2025
25th December 2025
26th December 2025
27th December 2025
28th December 2025
29th December 2025
30th December 2025
31st December 2025

34AQI

29AQI

25AQI

23AQI

23AQI

23AQI

22AQI

22AQI

No. of days

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

202524AQI

6
29
1
31
30
31
31
30
2
190
1

Highest AQI recorded in

March

34AQI

Lowest AQI recorded in

September

22AQI

Most & Least Polluted Years Over the Last 1 Years

Most Polluted Year Recorded
2025(Avg.)
24AQI
Least Polluted Year Recorded
2025(Avg.)
24AQI

Downtown's annual 2025 AQI (24) shows an average percentage change of NaN% (improved AQI) compared to previous years: .