Naka, Niigata, Japan 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
Naka, Niigata, Japan
2022
2023
2024
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
25th Aug 2025
54AQILowest AQI recorded on
30th Aug 2024
17AQISame Day Analysis (2nd August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 35 of Good air quality, showing improvement over 2025 and 2024 on the same day.
Day & Night AQI Trend: 1st Aug - 2nd Aug 2026
Naka, Niigata, Japan
AQI
Day
Night
.
4 AM1st Aug 2026
7 PM
3 AM2nd Aug 2026
Day time
Avg. Highest Time
1PM1st Aug
40AQI
Avg. Lowest Time
6PM1st Aug
33AQI
Night time
Avg. Highest Time
9PM1st Aug
38AQI
Avg. Lowest Time
3AM2nd Aug
33AQI
In the last 24 hours,
Naka's AQI reached its highest point of 40 at 1 PM during the Day, while the lowest point, 33, was recorded at 3 AM during the Night between 1st Aug and 2nd Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Naka, Niigata, Japan
JulAug
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 Jul 2026244 AMAQI
4th Jul 2026245 AMAQI
4th Jul 2026266 AMAQI
4th Jul 2026247 AMAQI
4th Jul 2026248 AMAQI
4th Jul 2026249 AMAQI
4th Jul 20262410 AMAQI
4th Jul 20262011 AMAQI
4th Jul 20262012 PMAQI
4th Jul 2026221 PMAQI
4th Jul 2026242 PMAQI
4th Jul 2026263 PMAQI
4th Jul 2026264 PMAQI
4th Jul 2026245 PMAQI
4th Jul 2026236 PMAQI
4th Jul 2026237 PMAQI
4th Jul 2026258 PMAQI
4th Jul 2026249 PMAQI
4th Jul 20262210 PMAQI
4th Jul 20262411 PMAQI
5th Jul 20262212 AMAQI
5th Jul 2026231 AMAQI
5th Jul 2026222 AMAQI
5th Jul 2026223 AMAQI
22°C16/28°C
5th Jul 2026224 AMAQI
5th Jul 2026245 AMAQI
5th Jul 2026236 AMAQI
5th Jul 2026247 AMAQI
5th Jul 2026228 AMAQI
5th Jul 2026209 AMAQI
5th Jul 20262010 AMAQI
5th Jul 20262011 AMAQI
5th Jul 20262012 PMAQI
5th Jul 2026211 PMAQI
5th Jul 2026222 PMAQI
5th Jul 2026253 PMAQI
5th Jul 2026224 PMAQI
5th Jul 2026245 PMAQI
5th Jul 2026256 PMAQI
5th Jul 2026267 PMAQI
5th Jul 2026238 PMAQI
5th Jul 2026229 PMAQI
5th Jul 20262010 PMAQI
5th Jul 20262011 PMAQI
6th Jul 20261812 AMAQI
6th Jul 2026221 AMAQI
6th Jul 2026222 AMAQI
6th Jul 2026223 AMAQI
23°C18/30°C
6th Jul 2026204 AMAQI
6th Jul 202685 AMAQI
6th Jul 202686 AMAQI
6th Jul 202687 AMAQI
6th Jul 202688 AMAQI
6th Jul 2026149 AMAQI
6th Jul 20261810 AMAQI
6th Jul 20263111 AMAQI
6th Jul 20261412 PMAQI
6th Jul 202681 PMAQI
6th Jul 2026212 PMAQI
6th Jul 2026243 PMAQI
6th Jul 2026164 PMAQI
6th Jul 2026145 PMAQI
6th Jul 202686 PMAQI
6th Jul 2026207 PMAQI
6th Jul 2026248 PMAQI
6th Jul 2026249 PMAQI
6th Jul 20262310 PMAQI
6th Jul 20262611 PMAQI
7th Jul 20262812 AMAQI
7th Jul 2026281 AMAQI
7th Jul 2026182 AMAQI
7th Jul 202683 AMAQI
22°C19/27°C
7th Jul 202684 AMAQI
7th Jul 2026285 AMAQI
7th Jul 202686 AMAQI
7th Jul 2026267 AMAQI
7th Jul 2026268 AMAQI
7th Jul 2026229 AMAQI
7th Jul 20262210 AMAQI
7th Jul 20262011 AMAQI
7th Jul 20262112 PMAQI
7th Jul 2026211 PMAQI
7th Jul 202682 PMAQI
7th Jul 2026263 PMAQI
7th Jul 2026244 PMAQI
7th Jul 2026265 PMAQI
7th Jul 2026246 PMAQI
7th Jul 2026257 PMAQI
7th Jul 2026268 PMAQI
7th Jul 2026269 PMAQI
7th Jul 20262410 PMAQI
7th Jul 20262411 PMAQI
8th Jul 20262812 AMAQI
8th Jul 2026301 AMAQI
8th Jul 2026262 AMAQI
8th Jul 2026283 AMAQI
22°C18/29°C
8th Jul 2026264 AMAQI
8th Jul 2026265 AMAQI
8th Jul 2026276 AMAQI
8th Jul 2026267 AMAQI
8th Jul 2026268 AMAQI
8th Jul 2026259 AMAQI
8th Jul 20262410 AMAQI
8th Jul 20262411 AMAQI
8th Jul 20262312 PMAQI
8th Jul 2026241 PMAQI
8th Jul 2026242 PMAQI
8th Jul 2026273 PMAQI
8th Jul 2026264 PMAQI
8th Jul 2026225 PMAQI
8th Jul 2026246 PMAQI
8th Jul 2026187 PMAQI
8th Jul 2026198 PMAQI
8th Jul 2026229 PMAQI
8th Jul 20262210 PMAQI
8th Jul 20262611 PMAQI
9th Jul 20262612 AMAQI
9th Jul 2026281 AMAQI
9th Jul 2026272 AMAQI
9th Jul 2026283 AMAQI
23°C20/29°C
9th Jul 2026274 AMAQI
9th Jul 2026305 AMAQI
9th Jul 2026266 AMAQI
9th Jul 2026287 AMAQI
9th Jul 2026258 AMAQI
9th Jul 2026229 AMAQI
9th Jul 20262310 AMAQI
9th Jul 20262411 AMAQI
9th Jul 20262312 PMAQI
9th Jul 2026201 PMAQI
9th Jul 2026242 PMAQI
9th Jul 2026263 PMAQI
9th Jul 2026264 PMAQI
9th Jul 2026265 PMAQI
9th Jul 2026236 PMAQI
9th Jul 2026257 PMAQI
9th Jul 2026248 PMAQI
9th Jul 2026249 PMAQI
9th Jul 20262410 PMAQI
9th Jul 20262811 PMAQI
10th Jul 20262812 AMAQI
10th Jul 2026281 AMAQI
10th Jul 2026282 AMAQI
10th Jul 2026263 AMAQI
25°C20/32°C
10th Jul 2026264 AMAQI
10th Jul 2026285 AMAQI
10th Jul 2026286 AMAQI
10th Jul 2026287 AMAQI
10th Jul 2026308 AMAQI
10th Jul 2026289 AMAQI
10th Jul 20263110 AMAQI
10th Jul 20262711 AMAQI
10th Jul 20262812 PMAQI
10th Jul 2026241 PMAQI
10th Jul 2026262 PMAQI
10th Jul 2026243 PMAQI
10th Jul 2026264 PMAQI
10th Jul 2026325 PMAQI
10th Jul 2026306 PMAQI
10th Jul 2026307 PMAQI
10th Jul 2026328 PMAQI
10th Jul 2026329 PMAQI
10th Jul 20263410 PMAQI
10th Jul 20263211 PMAQI
11th Jul 20263212 AMAQI
11th Jul 2026341 AMAQI
11th Jul 2026322 AMAQI
11th Jul 2026323 AMAQI
26°C21/31°C
11th Jul 2026284 AMAQI
11th Jul 2026315 AMAQI
11th Jul 2026316 AMAQI
11th Jul 2026327 AMAQI
11th Jul 2026328 AMAQI
11th Jul 2026369 AMAQI
11th Jul 20263410 AMAQI
11th Jul 20263011 AMAQI
11th Jul 20262812 PMAQI
11th Jul 2026221 PMAQI
11th Jul 2026242 PMAQI
11th Jul 2026243 PMAQI
11th Jul 2026264 PMAQI
11th Jul 2026305 PMAQI
11th Jul 2026296 PMAQI
11th Jul 2026307 PMAQI
11th Jul 2026258 PMAQI
11th Jul 2026299 PMAQI
11th Jul 20262810 PMAQI
11th Jul 20263011 PMAQI
12th Jul 20263012 AMAQI
12th Jul 2026321 AMAQI
12th Jul 2026322 AMAQI
12th Jul 2026303 AMAQI
24°C21/29°C
12th Jul 2026264 AMAQI
12th Jul 2026285 AMAQI
12th Jul 2026306 AMAQI
12th Jul 2026287 AMAQI
12th Jul 2026308 AMAQI
12th Jul 2026299 AMAQI
12th Jul 20263010 AMAQI
12th Jul 20263011 AMAQI
12th Jul 20262612 PMAQI
12th Jul 2026241 PMAQI
12th Jul 2026232 PMAQI
12th Jul 2026223 PMAQI
12th Jul 2026244 PMAQI
12th Jul 2026305 PMAQI
12th Jul 2026286 PMAQI
12th Jul 2026297 PMAQI
12th Jul 2026308 PMAQI
12th Jul 2026289 PMAQI
12th Jul 20263010 PMAQI
12th Jul 20262811 PMAQI
13th Jul 20263012 AMAQI
13th Jul 2026301 AMAQI
13th Jul 2026292 AMAQI
13th Jul 2026283 AMAQI
22°C21/26°C
13th Jul 2026244 AMAQI
13th Jul 2026305 AMAQI
13th Jul 2026286 AMAQI
13th Jul 2026287 AMAQI
13th Jul 2026308 AMAQI
13th Jul 2026289 AMAQI
13th Jul 20263010 AMAQI
13th Jul 20262811 AMAQI
13th Jul 20262612 PMAQI
13th Jul 2026241 PMAQI
13th Jul 2026242 PMAQI
13th Jul 2026243 PMAQI
13th Jul 2026284 PMAQI
13th Jul 2026325 PMAQI
13th Jul 2026346 PMAQI
13th Jul 2026367 PMAQI
13th Jul 2026348 PMAQI
13th Jul 2026389 PMAQI
13th Jul 20263810 PMAQI
13th Jul 20263411 PMAQI
14th Jul 20263412 AMAQI
14th Jul 2026371 AMAQI
14th Jul 2026322 AMAQI
14th Jul 2026333 AMAQI
23°C21/23°C
14th Jul 2026284 AMAQI
14th Jul 2026325 AMAQI
14th Jul 2026326 AMAQI
14th Jul 2026317 AMAQI
14th Jul 2026298 AMAQI
14th Jul 2026329 AMAQI
14th Jul 20263310 AMAQI
14th Jul 20262511 AMAQI
14th Jul 20262612 PMAQI
14th Jul 2026201 PMAQI
14th Jul 2026222 PMAQI
14th Jul 2026233 PMAQI
14th Jul 2026264 PMAQI
14th Jul 2026325 PMAQI
14th Jul 2026296 PMAQI
14th Jul 2026307 PMAQI
14th Jul 2026308 PMAQI
14th Jul 2026309 PMAQI
14th Jul 20263410 PMAQI
14th Jul 20263211 PMAQI
15th Jul 20263412 AMAQI
15th Jul 2026341 AMAQI
15th Jul 2026322 AMAQI
15th Jul 2026303 AMAQI
25°C21/29°C
15th Jul 2026264 AMAQI
15th Jul 2026295 AMAQI
15th Jul 2026276 AMAQI
15th Jul 2026297 AMAQI
15th Jul 2026308 AMAQI
15th Jul 2026299 AMAQI
15th Jul 20263010 AMAQI
15th Jul 20262611 AMAQI
15th Jul 20262312 PMAQI
15th Jul 2026191 PMAQI
15th Jul 2026192 PMAQI
15th Jul 2026203 PMAQI
15th Jul 2026194 PMAQI
15th Jul 2026245 PMAQI
15th Jul 2026246 PMAQI
15th Jul 2026227 PMAQI
15th Jul 2026248 PMAQI
15th Jul 2026249 PMAQI
15th Jul 20262610 PMAQI
15th Jul 20262511 PMAQI
16th Jul 20262412 AMAQI
16th Jul 2026271 AMAQI
16th Jul 2026272 AMAQI
16th Jul 2026283 AMAQI
27°C21/35°C
16th Jul 2026304 AMAQI
16th Jul 2026305 AMAQI
16th Jul 2026306 AMAQI
16th Jul 2026307 AMAQI
16th Jul 2026248 AMAQI
16th Jul 2026309 AMAQI
16th Jul 20263010 AMAQI
16th Jul 20263011 AMAQI
16th Jul 20263012 PMAQI
16th Jul 2026281 PMAQI
16th Jul 2026262 PMAQI
16th Jul 2026273 PMAQI
16th Jul 2026284 PMAQI
16th Jul 2026265 PMAQI
16th Jul 2026326 PMAQI
16th Jul 2026327 PMAQI
16th Jul 2026308 PMAQI
16th Jul 2026289 PMAQI
16th Jul 20262910 PMAQI
16th Jul 20262911 PMAQI
17th Jul 20262812 AMAQI
17th Jul 2026301 AMAQI
17th Jul 2026292 AMAQI
17th Jul 2026283 AMAQI
25°C22/29°C
17th Jul 2026264 AMAQI
17th Jul 2026295 AMAQI
17th Jul 2026266 AMAQI
17th Jul 2026267 AMAQI
17th Jul 2026268 AMAQI
17th Jul 2026289 AMAQI
17th Jul 20263010 AMAQI
17th Jul 20262811 AMAQI
17th Jul 20262812 PMAQI
17th Jul 2026281 PMAQI
17th Jul 2026262 PMAQI
17th Jul 2026263 PMAQI
17th Jul 2026334 PMAQI
17th Jul 2026335 PMAQI
17th Jul 2026336 PMAQI
17th Jul 2026317 PMAQI
17th Jul 2026338 PMAQI
17th Jul 2026319 PMAQI
17th Jul 20262910 PMAQI
17th Jul 20262911 PMAQI
18th Jul 20262912 AMAQI
18th Jul 2026291 AMAQI
18th Jul 2026292 AMAQI
18th Jul 2026273 AMAQI
25°C22/32°C
18th Jul 2026254 AMAQI
18th Jul 2026275 AMAQI
18th Jul 2026296 AMAQI
18th Jul 2026297 AMAQI
18th Jul 2026278 AMAQI
18th Jul 2026259 AMAQI
18th Jul 20262510 AMAQI
18th Jul 20262511 AMAQI
18th Jul 20262712 PMAQI
18th Jul 2026251 PMAQI
18th Jul 2026252 PMAQI
18th Jul 2026213 PMAQI
18th Jul 2026214 PMAQI
18th Jul 2026215 PMAQI
18th Jul 2026216 PMAQI
18th Jul 2026217 PMAQI
18th Jul 2026238 PMAQI
18th Jul 2026259 PMAQI
18th Jul 20262110 PMAQI
18th Jul 20262311 PMAQI
19th Jul 20262312 AMAQI
19th Jul 2026231 AMAQI
19th Jul 2026232 AMAQI
19th Jul 2026253 AMAQI
26°C22/33°C
19th Jul 2026234 AMAQI
19th Jul 2026215 AMAQI
19th Jul 2026216 AMAQI
19th Jul 2026307 AMAQI
19th Jul 2026348 AMAQI
19th Jul 2026319 AMAQI
19th Jul 20262710 AMAQI
19th Jul 20262911 AMAQI
19th Jul 20262512 PMAQI
19th Jul 2026211 PMAQI
19th Jul 2026212 PMAQI
19th Jul 2026233 PMAQI
19th Jul 2026254 PMAQI
19th Jul 2026255 PMAQI
19th Jul 2026256 PMAQI
19th Jul 2026257 PMAQI
19th Jul 2026278 PMAQI
19th Jul 2026319 PMAQI
19th Jul 20263110 PMAQI
19th Jul 20263311 PMAQI
20th Jul 20263612 AMAQI
20th Jul 2026361 AMAQI
20th Jul 2026362 AMAQI
20th Jul 2026333 AMAQI
27°C22/32°C
20th Jul 2026384 AMAQI
20th Jul 2026365 AMAQI
20th Jul 2026336 AMAQI
20th Jul 2026407 AMAQI
20th Jul 2026408 AMAQI
20th Jul 2026389 AMAQI
20th Jul 20264210 AMAQI
20th Jul 20264411 AMAQI
20th Jul 20264612 PMAQI
20th Jul 2026441 PMAQI
20th Jul 2026552 PMAQI
20th Jul 2026523 PMAQI
20th Jul 2026504 PMAQI
20th Jul 2026545 PMAQI
20th Jul 2026516 PMAQI
20th Jul 2026487 PMAQI
20th Jul 2026488 PMAQI
20th Jul 2026529 PMAQI
20th Jul 20265310 PMAQI
20th Jul 20265211 PMAQI
21st Jul 20265112 AMAQI
21st Jul 2026501 AMAQI
21st Jul 2026512 AMAQI
21st Jul 2026523 AMAQI
27°C23/33°C
21st Jul 2026514 AMAQI
21st Jul 2026505 AMAQI
21st Jul 2026526 AMAQI
21st Jul 2026537 AMAQI
21st Jul 2026528 AMAQI
21st Jul 2026519 AMAQI
21st Jul 20265110 AMAQI
21st Jul 20265211 AMAQI
21st Jul 2026541 PMAQI
21st Jul 2026542 PMAQI
21st Jul 2026543 PMAQI
21st Jul 2026534 PMAQI
21st Jul 2026535 PMAQI
21st Jul 2026536 PMAQI
21st Jul 2026877 PMAQI
21st Jul 2026488 PMAQI
21st Jul 2026469 PMAQI
21st Jul 20264610 PMAQI
21st Jul 20264611 PMAQI
22nd Jul 20264412 AMAQI
22nd Jul 2026441 AMAQI
22nd Jul 2026482 AMAQI
22nd Jul 2026483 AMAQI
26°C23/30°C
22nd Jul 2026464 AMAQI
22nd Jul 2026445 AMAQI
22nd Jul 2026406 AMAQI
22nd Jul 2026427 AMAQI
22nd Jul 2026408 AMAQI
22nd Jul 2026429 AMAQI
22nd Jul 20264610 AMAQI
22nd Jul 20264811 AMAQI
22nd Jul 20265012 PMAQI
22nd Jul 2026521 PMAQI
22nd Jul 2026602 PMAQI
22nd Jul 2026643 PMAQI
22nd Jul 2026594 PMAQI
22nd Jul 2026565 PMAQI
22nd Jul 2026556 PMAQI
22nd Jul 2026577 PMAQI
22nd Jul 2026568 PMAQI
22nd Jul 2026519 PMAQI
22nd Jul 20264810 PMAQI
22nd Jul 20264611 PMAQI
23rd Jul 20264612 AMAQI
23rd Jul 2026481 AMAQI
23rd Jul 2026482 AMAQI
23rd Jul 2026493 AMAQI
26°C22/31°C
23rd Jul 2026464 AMAQI
23rd Jul 2026405 AMAQI
23rd Jul 2026316 AMAQI
23rd Jul 2026337 AMAQI
23rd Jul 2026318 AMAQI
23rd Jul 2026299 AMAQI
23rd Jul 20263310 AMAQI
23rd Jul 20263111 AMAQI
23rd Jul 20262912 PMAQI
23rd Jul 2026291 PMAQI
23rd Jul 2026312 PMAQI
23rd Jul 2026313 PMAQI
23rd Jul 2026294 PMAQI
23rd Jul 2026295 PMAQI
23rd Jul 2026296 PMAQI
23rd Jul 2026257 PMAQI
23rd Jul 2026258 PMAQI
23rd Jul 2026279 PMAQI
23rd Jul 20262510 PMAQI
23rd Jul 20262511 PMAQI
24th Jul 20262512 AMAQI
24th Jul 2026251 AMAQI
24th Jul 2026272 AMAQI
24th Jul 2026293 AMAQI
26°C22/30°C
24th Jul 2026294 AMAQI
24th Jul 2026315 AMAQI
24th Jul 2026316 AMAQI
24th Jul 2026317 AMAQI
24th Jul 2026298 AMAQI
24th Jul 2026339 AMAQI
24th Jul 20263610 AMAQI
24th Jul 20263811 AMAQI
24th Jul 20263312 PMAQI
24th Jul 2026331 PMAQI
24th Jul 2026312 PMAQI
24th Jul 2026313 PMAQI
24th Jul 2026234 PMAQI
24th Jul 2026255 PMAQI
24th Jul 2026276 PMAQI
24th Jul 2026297 PMAQI
24th Jul 2026298 PMAQI
24th Jul 2026279 PMAQI
24th Jul 20262910 PMAQI
24th Jul 20263111 PMAQI
25th Jul 20263112 AMAQI
25th Jul 2026331 AMAQI
25th Jul 2026362 AMAQI
25th Jul 2026333 AMAQI
24°C22/28°C
25th Jul 2026334 AMAQI
25th Jul 2026365 AMAQI
25th Jul 2026336 AMAQI
25th Jul 2026337 AMAQI
25th Jul 2026298 AMAQI
25th Jul 2026299 AMAQI
25th Jul 20262910 AMAQI
25th Jul 20262511 AMAQI
25th Jul 20262512 PMAQI
25th Jul 2026251 PMAQI
25th Jul 2026252 PMAQI
25th Jul 2026233 PMAQI
25th Jul 2026214 PMAQI
25th Jul 2026215 PMAQI
25th Jul 2026256 PMAQI
25th Jul 2026217 PMAQI
25th Jul 2026258 PMAQI
25th Jul 2026299 PMAQI
25th Jul 20262910 PMAQI
25th Jul 20262511 PMAQI
26th Jul 20263612 AMAQI
26th Jul 2026251 AMAQI
26th Jul 2026292 AMAQI
26th Jul 2026293 AMAQI
24°C21/29°C
26th Jul 2026254 AMAQI
26th Jul 2026215 AMAQI
26th Jul 2026256 AMAQI
26th Jul 2026217 AMAQI
26th Jul 2026258 AMAQI
26th Jul 2026259 AMAQI
26th Jul 20262910 AMAQI
26th Jul 20262911 AMAQI
26th Jul 20262112 PMAQI
26th Jul 2026251 PMAQI
26th Jul 2026252 PMAQI
26th Jul 2026253 PMAQI
26th Jul 2026294 PMAQI
26th Jul 2026255 PMAQI
26th Jul 2026276 PMAQI
26th Jul 2026317 PMAQI
26th Jul 2026318 PMAQI
26th Jul 2026319 PMAQI
26th Jul 20262910 PMAQI
26th Jul 20262911 PMAQI
27th Jul 20262912 AMAQI
27th Jul 2026271 AMAQI
27th Jul 2026212 AMAQI
27th Jul 2026253 AMAQI
22°C20/25°C
27th Jul 2026254 AMAQI
27th Jul 2026255 AMAQI
27th Jul 2026236 AMAQI
27th Jul 2026297 AMAQI
27th Jul 2026298 AMAQI
27th Jul 2026279 AMAQI
27th Jul 20262510 AMAQI
27th Jul 20262711 AMAQI
27th Jul 20262512 PMAQI
27th Jul 2026271 PMAQI
27th Jul 2026212 PMAQI
27th Jul 2026213 PMAQI
27th Jul 2026274 PMAQI
27th Jul 2026295 PMAQI
27th Jul 2026256 PMAQI
27th Jul 2026257 PMAQI
27th Jul 2026258 PMAQI
27th Jul 2026219 PMAQI
27th Jul 20262510 PMAQI
27th Jul 20262511 PMAQI
28th Jul 20262712 AMAQI
28th Jul 2026251 AMAQI
28th Jul 2026292 AMAQI
28th Jul 2026293 AMAQI
23°C19/27°C
28th Jul 2026254 AMAQI
28th Jul 2026255 AMAQI
28th Jul 2026256 AMAQI
28th Jul 2026277 AMAQI
28th Jul 2026258 AMAQI
28th Jul 2026259 AMAQI
28th Jul 20262510 AMAQI
28th Jul 20262511 AMAQI
28th Jul 20262512 PMAQI
28th Jul 2026291 PMAQI
28th Jul 2026312 PMAQI
28th Jul 2026333 PMAQI
28th Jul 2026294 PMAQI
28th Jul 2026315 PMAQI
28th Jul 2026256 PMAQI
28th Jul 2026297 PMAQI
28th Jul 2026298 PMAQI
28th Jul 2026259 PMAQI
28th Jul 20262510 PMAQI
28th Jul 20262111 PMAQI
29th Jul 20262512 AMAQI
29th Jul 2026251 AMAQI
29th Jul 2026292 AMAQI
29th Jul 2026293 AMAQI
23°C19/30°C
29th Jul 2026294 AMAQI
29th Jul 2026255 AMAQI
29th Jul 2026256 AMAQI
29th Jul 2026237 AMAQI
29th Jul 2026318 AMAQI
29th Jul 2026259 AMAQI
29th Jul 20262110 AMAQI
29th Jul 20262111 AMAQI
29th Jul 20262112 PMAQI
29th Jul 2026211 PMAQI
29th Jul 2026232 PMAQI
29th Jul 2026213 PMAQI
29th Jul 2026214 PMAQI
29th Jul 2026275 PMAQI
29th Jul 2026216 PMAQI
29th Jul 2026217 PMAQI
29th Jul 2026238 PMAQI
29th Jul 2026239 PMAQI
29th Jul 20262110 PMAQI
29th Jul 20262111 PMAQI
30th Jul 20262512 AMAQI
30th Jul 2026211 AMAQI
30th Jul 2026212 AMAQI
30th Jul 2026213 AMAQI
23°C21/25°C
30th Jul 2026214 AMAQI
30th Jul 2026215 AMAQI
30th Jul 2026236 AMAQI
30th Jul 2026277 AMAQI
30th Jul 2026328 AMAQI
30th Jul 2026339 AMAQI
30th Jul 20263610 AMAQI
30th Jul 20263311 AMAQI
30th Jul 20263612 PMAQI
30th Jul 2026381 PMAQI
30th Jul 2026382 PMAQI
30th Jul 2026423 PMAQI
30th Jul 2026384 PMAQI
30th Jul 2026405 PMAQI
30th Jul 2026406 PMAQI
30th Jul 2026387 PMAQI
30th Jul 2026408 PMAQI
30th Jul 2026429 PMAQI
30th Jul 20263810 PMAQI
30th Jul 20263811 PMAQI
31st Jul 20264012 AMAQI
31st Jul 2026381 AMAQI
31st Jul 2026402 AMAQI
31st Jul 2026383 AMAQI
24°C20/27°C
31st Jul 2026384 AMAQI
31st Jul 2026385 AMAQI
31st Jul 2026386 AMAQI
31st Jul 2026387 AMAQI
31st Jul 2026368 AMAQI
31st Jul 2026339 AMAQI
31st Jul 20263110 AMAQI
31st Jul 20263311 AMAQI
31st Jul 20263612 PMAQI
31st Jul 2026311 PMAQI
31st Jul 2026312 PMAQI
31st Jul 2026293 PMAQI
31st Jul 2026314 PMAQI
31st Jul 2026315 PMAQI
31st Jul 2026316 PMAQI
31st Jul 2026297 PMAQI
31st Jul 2026318 PMAQI
31st Jul 2026319 PMAQI
31st Jul 20263310 PMAQI
31st Jul 20263611 PMAQI
1st Aug 20263312 AMAQI
1st Aug 2026331 AMAQI
1st Aug 2026332 AMAQI
1st Aug 2026333 AMAQI
24°C22/27°C
1st Aug 2026364 AMAQI
1st Aug 2026335 AMAQI
1st Aug 2026336 AMAQI
1st Aug 2026337 AMAQI
1st Aug 2026368 AMAQI
1st Aug 2026369 AMAQI
1st Aug 20263810 AMAQI
1st Aug 20263811 AMAQI
1st Aug 20263812 PMAQI
1st Aug 2026401 PMAQI
1st Aug 2026362 PMAQI
1st Aug 2026383 PMAQI
1st Aug 2026334 PMAQI
1st Aug 2026365 PMAQI
1st Aug 2026336 PMAQI
1st Aug 2026367 PMAQI
1st Aug 2026338 PMAQI
1st Aug 2026389 PMAQI
1st Aug 20263610 PMAQI
1st Aug 20263311 PMAQI
2nd Aug 20263612 AMAQI
2nd Aug 2026331 AMAQI
2nd Aug 2026382 AMAQI
2nd Aug 2026333 AMAQI
24°C21/29°C
2nd Aug 2026364 AMAQI
4 AM2nd Aug 2026335 AMAQI
2nd Aug 2026366 AMAQI
2nd Aug 2026387 AMAQI
2nd Aug 2026408 AMAQI
2nd Aug 2026369 AMAQI
2nd Aug 20264210 AMAQI
2nd Aug 20263811 AMAQI
11 AM2nd Aug 20263812 PMAQI
2nd Aug 2026381 PMAQI
2nd Aug 2026362 PMAQI
2nd Aug 2026363 PMAQI
2nd Aug 2026364 PMAQI
2nd Aug 2026335 PMAQI
2nd Aug 2026336 PMAQI
2nd Aug 2026337 PMAQI
7 PM2nd Aug 2026318 PMAQI
2nd Aug 2026299 PMAQI
2nd Aug 20262910 PMAQI
2nd Aug 20263111 PMAQI
11 PM3 AM
25°C22/29°C
Day time
Avg. Highest Time
10 AM
31AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
6 AM
28AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 10 AM to 10 AM (Avg. 31), while the lowest AQI was between 6 AM to 6 AM (Avg. 28).
Night time
Avg. Highest Time
12 AM - 2 AM
31AQI
3 hours / Day
90 hours / Month
Avg. Lowest Time
3 AM - 11 PM
30AQI
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. 31), while the lowest AQI was between 3 AM to 11 PM (Avg. 30).
2026 Days Vs Air Quality
Naka, Niigata, Japan
2026
87%
186
13%
28
Total number of days with different AQI categories in last 214 days in 2026 (151 days remaining)
Good
186 DaysModerate
28 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 87%
Health Risk Level:
Low
In 2026, 87% of 214 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.
Annual Air Quality Insights
Naka, Niigata, Japan
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
15AQI (US)
15AQI (US)
2nd January 2026
13AQI (US)
13AQI (US)
3rd January 2026
13AQI (US)
13AQI (US)
4th January 2026
20AQI (US)
20AQI (US)
5th January 2026
13AQI (US)
13AQI (US)
6th January 2026
23AQI (US)
23AQI (US)
7th January 2026
22AQI (US)
22AQI (US)
8th January 2026
17AQI (US)
17AQI (US)
9th January 2026
14AQI (US)
14AQI (US)
10th January 2026
18AQI (US)
18AQI (US)
11th January 2026
26AQI (US)
26AQI (US)
12th January 2026
18AQI (US)
18AQI (US)
13th January 2026
15AQI (US)
15AQI (US)
14th January 2026
20AQI (US)
20AQI (US)
15th January 2026
24AQI (US)
24AQI (US)
16th January 2026
41AQI (US)
41AQI (US)
17th January 2026
42AQI (US)
42AQI (US)
18th January 2026
32AQI (US)
32AQI (US)
19th January 2026
44AQI (US)
44AQI (US)
20th January 2026
25AQI (US)
25AQI (US)
21st January 2026
13AQI (US)
13AQI (US)
22nd January 2026
21AQI (US)
21AQI (US)
23rd January 2026
33AQI (US)
33AQI (US)
24th January 2026
32AQI (US)
32AQI (US)
25th January 2026
40AQI (US)
40AQI (US)
26th January 2026
27AQI (US)
27AQI (US)
27th January 2026
34AQI (US)
34AQI (US)
28th January 2026
32AQI (US)
32AQI (US)
29th January 2026
23AQI (US)
23AQI (US)
30th January 2026
36AQI (US)
36AQI (US)
31st January 2026
41AQI (US)
41AQI (US)
1st February 2026
30AQI (US)
30AQI (US)
2nd February 2026
33AQI (US)
33AQI (US)
3rd February 2026
29AQI (US)
29AQI (US)
4th February 2026
36AQI (US)
36AQI (US)
5th February 2026
42AQI (US)
42AQI (US)
6th February 2026
41AQI (US)
41AQI (US)
7th February 2026
24AQI (US)
24AQI (US)
8th February 2026
21AQI (US)
21AQI (US)
9th February 2026
37AQI (US)
37AQI (US)
10th February 2026
44AQI (US)
44AQI (US)
11th February 2026
50AQI (US)
50AQI (US)
12th February 2026
34AQI (US)
34AQI (US)
13th February 2026
39AQI (US)
39AQI (US)
14th February 2026
64AQI (US)
64AQI (US)
15th February 2026
48AQI (US)
48AQI (US)
16th February 2026
52AQI (US)
52AQI (US)
17th February 2026
21AQI (US)
21AQI (US)
18th February 2026
29AQI (US)
29AQI (US)
19th February 2026
28AQI (US)
28AQI (US)
20th February 2026
33AQI (US)
33AQI (US)
21st February 2026
44AQI (US)
44AQI (US)
22nd February 2026
43AQI (US)
43AQI (US)
23rd February 2026
47AQI (US)
47AQI (US)
24th February 2026
35AQI (US)
35AQI (US)
25th February 2026
40AQI (US)
40AQI (US)
26th February 2026
32AQI (US)
32AQI (US)
27th February 2026
42AQI (US)
42AQI (US)
28th February 2026
36AQI (US)
36AQI (US)
1st March 2026
35AQI (US)
35AQI (US)
2nd March 2026
69AQI (US)
69AQI (US)
3rd March 2026
42AQI (US)
42AQI (US)
4th March 2026
64AQI (US)
64AQI (US)
5th March 2026
63AQI (US)
63AQI (US)
6th March 2026
54AQI (US)
54AQI (US)
7th March 2026
47AQI (US)
47AQI (US)
8th March 2026
46AQI (US)
46AQI (US)
9th March 2026
50AQI (US)
50AQI (US)
10th March 2026
56AQI (US)
56AQI (US)
11th March 2026
57AQI (US)
57AQI (US)
12th March 2026
63AQI (US)
63AQI (US)
13th March 2026
38AQI (US)
38AQI (US)
14th March 2026
49AQI (US)
49AQI (US)
15th March 2026
59AQI (US)
59AQI (US)
16th March 2026
57AQI (US)
57AQI (US)
17th March 2026
65AQI (US)
65AQI (US)
18th March 2026
49AQI (US)
49AQI (US)
19th March 2026
35AQI (US)
35AQI (US)
20th March 2026
38AQI (US)
38AQI (US)
21st March 2026
66AQI (US)
66AQI (US)
22nd March 2026
47AQI (US)
47AQI (US)
23rd March 2026
49AQI (US)
49AQI (US)
24th March 2026
66AQI (US)
66AQI (US)
25th March 2026
52AQI (US)
52AQI (US)
26th March 2026
27AQI (US)
27AQI (US)
27th March 2026
24AQI (US)
24AQI (US)
28th March 2026
52AQI (US)
52AQI (US)
29th March 2026
51AQI (US)
51AQI (US)
30th March 2026
59AQI (US)
59AQI (US)
31st March 2026
46AQI (US)
46AQI (US)
1st April 2026
32AQI (US)
32AQI (US)
2nd April 2026
21AQI (US)
21AQI (US)
3rd April 2026
50AQI (US)
50AQI (US)
4th April 2026
47AQI (US)
47AQI (US)
5th April 2026
38AQI (US)
38AQI (US)
6th April 2026
24AQI (US)
24AQI (US)
7th April 2026
26AQI (US)
26AQI (US)
8th April 2026
25AQI (US)
25AQI (US)
9th April 2026
33AQI (US)
33AQI (US)
10th April 2026
45AQI (US)
45AQI (US)
11th April 2026
41AQI (US)
41AQI (US)
12th April 2026
31AQI (US)
31AQI (US)
13th April 2026
31AQI (US)
31AQI (US)
14th April 2026
37AQI (US)
37AQI (US)
15th April 2026
42AQI (US)
42AQI (US)
16th April 2026
32AQI (US)
32AQI (US)
17th April 2026
35AQI (US)
35AQI (US)
18th April 2026
34AQI (US)
34AQI (US)
19th April 2026
33AQI (US)
33AQI (US)
20th April 2026
35AQI (US)
35AQI (US)
21st April 2026
43AQI (US)
43AQI (US)
22nd April 2026
29AQI (US)
29AQI (US)
23rd April 2026
29AQI (US)
29AQI (US)
24th April 2026
30AQI (US)
30AQI (US)
25th April 2026
45AQI (US)
45AQI (US)
26th April 2026
48AQI (US)
48AQI (US)
27th April 2026
49AQI (US)
49AQI (US)
28th April 2026
38AQI (US)
38AQI (US)
29th April 2026
35AQI (US)
35AQI (US)
30th April 2026
40AQI (US)
40AQI (US)
1st May 2026
48AQI (US)
48AQI (US)
2nd May 2026
55AQI (US)
55AQI (US)
3rd May 2026
41AQI (US)
41AQI (US)
4th May 2026
29AQI (US)
29AQI (US)
5th May 2026
23AQI (US)
23AQI (US)
6th May 2026
30AQI (US)
30AQI (US)
7th May 2026
30AQI (US)
30AQI (US)
8th May 2026
27AQI (US)
27AQI (US)
9th May 2026
29AQI (US)
29AQI (US)
10th May 2026
29AQI (US)
29AQI (US)
11th May 2026
31AQI (US)
31AQI (US)
12th May 2026
35AQI (US)
35AQI (US)
13th May 2026
39AQI (US)
39AQI (US)
14th May 2026
32AQI (US)
32AQI (US)
15th May 2026
35AQI (US)
35AQI (US)
16th May 2026
83AQI (US)
83AQI (US)
17th May 2026
68AQI (US)
68AQI (US)
18th May 2026
53AQI (US)
53AQI (US)
19th May 2026
48AQI (US)
48AQI (US)
20th May 2026
62AQI (US)
62AQI (US)
21st May 2026
60AQI (US)
60AQI (US)
22nd May 2026
63AQI (US)
63AQI (US)
23rd May 2026
56AQI (US)
56AQI (US)
24th May 2026
60AQI (US)
60AQI (US)
25th May 2026
49AQI (US)
49AQI (US)
26th May 2026
41AQI (US)
41AQI (US)
27th May 2026
29AQI (US)
29AQI (US)
28th May 2026
26AQI (US)
26AQI (US)
29th May 2026
23AQI (US)
23AQI (US)
30th May 2026
24AQI (US)
24AQI (US)
31st May 2026
26AQI (US)
26AQI (US)
1st June 2026
27AQI (US)
27AQI (US)
2nd June 2026
32AQI (US)
32AQI (US)
3rd June 2026
27AQI (US)
27AQI (US)
4th June 2026
20AQI (US)
20AQI (US)
5th June 2026
21AQI (US)
21AQI (US)
6th June 2026
23AQI (US)
23AQI (US)
7th June 2026
22AQI (US)
22AQI (US)
8th June 2026
21AQI (US)
21AQI (US)
9th June 2026
22AQI (US)
22AQI (US)
10th June 2026
22AQI (US)
22AQI (US)
11th June 2026
24AQI (US)
24AQI (US)
12th June 2026
24AQI (US)
24AQI (US)
13th June 2026
25AQI (US)
25AQI (US)
14th June 2026
23AQI (US)
23AQI (US)
15th June 2026
22AQI (US)
22AQI (US)
16th June 2026
25AQI (US)
25AQI (US)
17th June 2026
25AQI (US)
25AQI (US)
18th June 2026
27AQI (US)
27AQI (US)
19th June 2026
28AQI (US)
28AQI (US)
20th June 2026
22AQI (US)
22AQI (US)
21st June 2026
20AQI (US)
20AQI (US)
22nd June 2026
19AQI (US)
19AQI (US)
23rd June 2026
20AQI (US)
20AQI (US)
24th June 2026
20AQI (US)
20AQI (US)
25th June 2026
26AQI (US)
26AQI (US)
26th June 2026
28AQI (US)
28AQI (US)
27th June 2026
26AQI (US)
26AQI (US)
28th June 2026
27AQI (US)
27AQI (US)
29th June 2026
26AQI (US)
26AQI (US)
30th June 2026
24AQI (US)
24AQI (US)
1st July 2026
24AQI (US)
24AQI (US)
2nd July 2026
22AQI (US)
22AQI (US)
3rd July 2026
22AQI (US)
22AQI (US)
4th July 2026
24AQI (US)
24AQI (US)
5th July 2026
22AQI (US)
22AQI (US)
6th July 2026
18AQI (US)
18AQI (US)
7th July 2026
22AQI (US)
22AQI (US)
8th July 2026
25AQI (US)
25AQI (US)
9th July 2026
25AQI (US)
25AQI (US)
10th July 2026
29AQI (US)
29AQI (US)
11th July 2026
30AQI (US)
30AQI (US)
12th July 2026
28AQI (US)
28AQI (US)
13th July 2026
30AQI (US)
30AQI (US)
14th July 2026
30AQI (US)
30AQI (US)
15th July 2026
26AQI (US)
26AQI (US)
16th July 2026
29AQI (US)
29AQI (US)
17th July 2026
29AQI (US)
29AQI (US)
18th July 2026
25AQI (US)
25AQI (US)
19th July 2026
26AQI (US)
26AQI (US)
20th July 2026
44AQI (US)
44AQI (US)
21st July 2026
53AQI (US)
53AQI (US)
22nd July 2026
49AQI (US)
49AQI (US)
23rd July 2026
33AQI (US)
33AQI (US)
24th July 2026
30AQI (US)
30AQI (US)
25th July 2026
28AQI (US)
28AQI (US)
26th July 2026
27AQI (US)
27AQI (US)
27th July 2026
25AQI (US)
25AQI (US)
28th July 2026
27AQI (US)
27AQI (US)
29th July 2026
24AQI (US)
24AQI (US)
30th July 2026
33AQI (US)
33AQI (US)
31st July 2026
34AQI (US)
34AQI (US)
1st August 2026
35AQI (US)
35AQI (US)
2nd August 2026
35AQI (US)
35AQI (US)
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
25AQI (US)
38AQI (US)
51AQI (US)
36AQI (US)
41AQI (US)
24AQI (US)
29AQI (US)
35AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202635AQI (US)
31
26
2
15
16
30
22
9
30
30
1
2
186
28
Highest AQI (US) recorded in
March51AQI (US)
Lowest AQI (US) recorded in
June24AQI (US)
202539AQI (US)
31
27
1
23
8
28
2
26
5
22
8
23
8
27
4
30
24
7
29
1
29
2
319
46
Highest AQI (US) recorded in
July47AQI (US)
Lowest AQI (US) recorded in
December31AQI (US)
202435AQI (US)
30
29
26
5
18
12
30
1
19
11
28
3
31
30
31
29
1
31
332
33
Highest AQI (US) recorded in
April49AQI (US)
Lowest AQI (US) recorded in
December26AQI (US)
202336AQI (US)
31
26
2
23
8
23
7
25
6
25
5
25
6
31
30
31
27
2
31
328
36
Highest AQI (US) recorded in
April45AQI (US)
Lowest AQI (US) recorded in
October28AQI (US)
202240AQI (US)
30
19
2
20
5
1
5
22
8
19
12
21
9
22
1
26
2
30
1
30
31
271
39
1
5
Highest AQI (US) recorded in
March69AQI (US)
Lowest AQI (US) recorded in
August23AQI (US)
202134AQI (US)
27
3
23
5
26
3
16
5
27
4
23
7
31
30
1
30
31
29
1
18
311
29
Highest AQI (US) recorded in
June43AQI (US)
Lowest AQI (US) recorded in
December27AQI (US)
202029AQI (US)
13
21
18
27
3
27
2
16
13
2
18
1
30
1
27
3
31
228
23
2
Highest AQI (US) recorded in
August50AQI (US)
Lowest AQI (US) recorded in
March18AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Most Polluted Year Recorded
2022(Avg.)
40AQI (US)Least Polluted Year Recorded
2020(Avg.)
29AQI (US)Naka's annual 2026 AQI (US) (35) shows an average percentage change of -0.3% (improved AQI (US)) compared to previous years: 2020 (29), 2021 (34), 2022 (40), 2023 (36), 2024 (35), 2025 (39).
