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HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Niikura, Niiza, Saitama, 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+

July Air Quality Analysis

Niikura, Niiza, Saitama, Japan

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
9th Jul 2025
81AQI
Lowest AQI recorded on
3rd Jul 2026
18AQI

Same Day Analysis (13th July):
On this day, AQI across the 5 years varied significantly: 2026 ranks 4th highest AQI at 30 of Good air quality, showing improvement over 2025, 2024 and 2023 on the same day.

Day & Night AQI Trend: 12th Jul - 13th Jul 2026

Niikura, Niiza, Saitama, Japan

AQI
Day
Night
.

4 AM12th Jul 2026

7 PM

3 AM13th Jul 2026

Day time
Avg. Highest Time
10AM12th Jul

30AQI

Avg. Lowest Time
2PM12th Jul

22AQI

Night time
Avg. Highest Time
1AM13th Jul

32AQI

Avg. Lowest Time
11PM12th Jul

29AQI

In the last 24 hours,

Niikura's AQI reached its highest point of 32 at 1 AM during the Night, while the lowest point, 22, was recorded at 2 PM during the Day between 12th Jul and 13th Jul 2026.

Day & Night AQI Trend : Jun - Jul 2026

Niikura, Niiza, Saitama, Japan

JunJul
14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th
Day
Night
14th Jun 2026514 AMAQI
14th Jun 2026545 AMAQI
14th Jun 2026546 AMAQI
14th Jun 2026497 AMAQI
14th Jun 2026468 AMAQI
14th Jun 2026469 AMAQI
14th Jun 20264210 AMAQI
14th Jun 20263611 AMAQI
14th Jun 20262612 PMAQI
14th Jun 2026281 PMAQI
14th Jun 2026292 PMAQI
14th Jun 2026273 PMAQI
14th Jun 2026234 PMAQI
14th Jun 2026245 PMAQI
14th Jun 2026216 PMAQI
14th Jun 2026227 PMAQI
14th Jun 2026218 PMAQI
14th Jun 2026219 PMAQI
14th Jun 20262010 PMAQI
14th Jun 20262311 PMAQI
15th Jun 20262512 AMAQI
15th Jun 2026331 AMAQI
15th Jun 2026242 AMAQI
15th Jun 2026223 AMAQI

24°C21/27°C

15th Jun 2026214 AMAQI
15th Jun 2026145 AMAQI
15th Jun 2026126 AMAQI
15th Jun 2026127 AMAQI
15th Jun 2026178 AMAQI
15th Jun 2026149 AMAQI
15th Jun 20261710 AMAQI
15th Jun 20261411 AMAQI
15th Jun 20261712 PMAQI
15th Jun 2026231 PMAQI
15th Jun 2026192 PMAQI
15th Jun 2026173 PMAQI
15th Jun 2026174 PMAQI
15th Jun 2026195 PMAQI
15th Jun 2026216 PMAQI
15th Jun 2026177 PMAQI
15th Jun 2026238 PMAQI
15th Jun 2026179 PMAQI
15th Jun 20262110 PMAQI
15th Jun 2026811 PMAQI
16th Jun 20261212 AMAQI
16th Jun 2026101 AMAQI
16th Jun 2026262 AMAQI
16th Jun 2026233 AMAQI

18°C17/19°C

16th Jun 2026224 AMAQI
16th Jun 2026265 AMAQI
16th Jun 2026246 AMAQI
16th Jun 2026247 AMAQI
16th Jun 2026288 AMAQI
16th Jun 2026339 AMAQI
16th Jun 20265010 AMAQI
16th Jun 20262811 AMAQI
16th Jun 20263012 PMAQI
16th Jun 2026241 PMAQI
16th Jun 2026222 PMAQI
16th Jun 2026233 PMAQI
16th Jun 2026244 PMAQI
16th Jun 2026245 PMAQI
16th Jun 2026246 PMAQI
16th Jun 2026207 PMAQI
16th Jun 2026198 PMAQI
16th Jun 2026209 PMAQI
16th Jun 20262310 PMAQI
16th Jun 20262611 PMAQI
17th Jun 20262512 AMAQI
17th Jun 2026261 AMAQI
17th Jun 2026242 AMAQI
17th Jun 2026263 AMAQI

22°C18/26°C

17th Jun 2026244 AMAQI
17th Jun 2026225 AMAQI
17th Jun 2026226 AMAQI
17th Jun 2026247 AMAQI
17th Jun 2026248 AMAQI
17th Jun 2026249 AMAQI
17th Jun 20262510 AMAQI
17th Jun 20262511 AMAQI
17th Jun 20262512 PMAQI
17th Jun 2026251 PMAQI
17th Jun 2026242 PMAQI
17th Jun 2026233 PMAQI
17th Jun 2026224 PMAQI
17th Jun 2026205 PMAQI
17th Jun 2026226 PMAQI
17th Jun 2026207 PMAQI
17th Jun 2026218 PMAQI
17th Jun 2026249 PMAQI
17th Jun 20262210 PMAQI
17th Jun 20262411 PMAQI
18th Jun 20262612 AMAQI
18th Jun 2026261 AMAQI
18th Jun 2026282 AMAQI
18th Jun 2026283 AMAQI

24°C21/27°C

18th Jun 2026244 AMAQI
18th Jun 2026235 AMAQI
18th Jun 2026246 AMAQI
18th Jun 2026237 AMAQI
18th Jun 2026268 AMAQI
18th Jun 2026269 AMAQI
18th Jun 20261510 AMAQI
18th Jun 20262611 AMAQI
18th Jun 20262612 PMAQI
18th Jun 2026241 PMAQI
18th Jun 2026222 PMAQI
18th Jun 2026223 PMAQI
18th Jun 2026244 PMAQI
18th Jun 2026245 PMAQI
18th Jun 2026206 PMAQI
18th Jun 2026227 PMAQI
18th Jun 2026208 PMAQI
18th Jun 2026249 PMAQI
18th Jun 20263210 PMAQI
18th Jun 20263811 PMAQI
19th Jun 20263112 AMAQI
19th Jun 2026401 AMAQI
19th Jun 2026342 AMAQI
19th Jun 2026253 AMAQI

24°C22/28°C

19th Jun 2026254 AMAQI
19th Jun 2026295 AMAQI
19th Jun 2026296 AMAQI
19th Jun 2026307 AMAQI
19th Jun 2026258 AMAQI
19th Jun 2026329 AMAQI
19th Jun 20264410 AMAQI
19th Jun 20263411 AMAQI
19th Jun 20262512 PMAQI
19th Jun 2026261 PMAQI
19th Jun 2026282 PMAQI
19th Jun 2026263 PMAQI
19th Jun 2026234 PMAQI
19th Jun 2026225 PMAQI
19th Jun 2026246 PMAQI
19th Jun 2026227 PMAQI
19th Jun 2026208 PMAQI
19th Jun 2026219 PMAQI
19th Jun 20262210 PMAQI
19th Jun 20262411 PMAQI
20th Jun 20262312 AMAQI
20th Jun 2026251 AMAQI
20th Jun 2026242 AMAQI
20th Jun 2026233 AMAQI

25°C21/30°C

20th Jun 2026234 AMAQI
20th Jun 2026245 AMAQI
20th Jun 2026246 AMAQI
20th Jun 2026267 AMAQI
20th Jun 2026248 AMAQI
20th Jun 2026249 AMAQI
20th Jun 20262210 AMAQI
20th Jun 20262411 AMAQI
20th Jun 20262112 PMAQI
20th Jun 2026221 PMAQI
20th Jun 2026232 PMAQI
20th Jun 2026243 PMAQI
20th Jun 2026224 PMAQI
20th Jun 2026225 PMAQI
20th Jun 2026226 PMAQI
20th Jun 2026237 PMAQI
20th Jun 2026198 PMAQI
20th Jun 2026209 PMAQI
20th Jun 20262010 PMAQI
20th Jun 20262011 PMAQI
21st Jun 20262412 AMAQI
21st Jun 2026241 AMAQI
21st Jun 2026242 AMAQI
21st Jun 2026243 AMAQI

22°C21/22°C

21st Jun 2026244 AMAQI
21st Jun 2026206 AMAQI
21st Jun 2026207 AMAQI
21st Jun 2026198 AMAQI
21st Jun 2026189 AMAQI
21st Jun 20261710 AMAQI
21st Jun 20261911 AMAQI
21st Jun 20261812 PMAQI
21st Jun 2026171 PMAQI
21st Jun 2026122 PMAQI
21st Jun 2026183 PMAQI
21st Jun 2026204 PMAQI
21st Jun 2026205 PMAQI
21st Jun 2026176 PMAQI
21st Jun 2026187 PMAQI
21st Jun 2026178 PMAQI
21st Jun 2026199 PMAQI
21st Jun 20261910 PMAQI
21st Jun 20262311 PMAQI
22nd Jun 20262312 AMAQI
22nd Jun 2026201 AMAQI
22nd Jun 2026222 AMAQI
22nd Jun 2026193 AMAQI

25°C21/29°C

22nd Jun 2026194 AMAQI
22nd Jun 2026185 AMAQI
22nd Jun 2026196 AMAQI
22nd Jun 2026187 AMAQI
22nd Jun 2026198 AMAQI
22nd Jun 2026199 AMAQI
22nd Jun 20261910 AMAQI
22nd Jun 20261411 AMAQI
22nd Jun 20261912 PMAQI
22nd Jun 2026191 PMAQI
22nd Jun 2026202 PMAQI
22nd Jun 2026193 PMAQI
22nd Jun 2026184 PMAQI
22nd Jun 2026195 PMAQI
22nd Jun 2026186 PMAQI
22nd Jun 2026207 PMAQI
22nd Jun 2026198 PMAQI
22nd Jun 2026199 PMAQI
22nd Jun 20261910 PMAQI
22nd Jun 20261811 PMAQI
23rd Jun 20262212 AMAQI
23rd Jun 2026241 AMAQI
23rd Jun 2026222 AMAQI
23rd Jun 2026253 AMAQI

24°C21/30°C

23rd Jun 2026224 AMAQI
23rd Jun 2026225 AMAQI
23rd Jun 2026166 AMAQI
23rd Jun 2026257 AMAQI
23rd Jun 2026228 AMAQI
23rd Jun 2026249 AMAQI
23rd Jun 20262210 AMAQI
23rd Jun 20262311 AMAQI
23rd Jun 20262212 PMAQI
23rd Jun 2026221 PMAQI
23rd Jun 2026222 PMAQI
23rd Jun 2026213 PMAQI
23rd Jun 2026194 PMAQI
23rd Jun 2026205 PMAQI
23rd Jun 2026206 PMAQI
23rd Jun 2026207 PMAQI
23rd Jun 2026188 PMAQI
23rd Jun 2026209 PMAQI
23rd Jun 20262010 PMAQI
23rd Jun 20262311 PMAQI
24th Jun 20262412 AMAQI
24th Jun 2026241 AMAQI
24th Jun 2026242 AMAQI
24th Jun 2026233 AMAQI

22°C20/25°C

24th Jun 2026224 AMAQI
24th Jun 2026215 AMAQI
24th Jun 2026226 AMAQI
24th Jun 2026227 AMAQI
24th Jun 2026218 AMAQI
24th Jun 2026229 AMAQI
24th Jun 20262410 AMAQI
24th Jun 20262311 AMAQI
24th Jun 20262212 PMAQI
24th Jun 2026221 PMAQI
24th Jun 2026222 PMAQI
24th Jun 2026203 PMAQI
24th Jun 2026224 PMAQI
24th Jun 2026195 PMAQI
24th Jun 2026206 PMAQI
24th Jun 2026207 PMAQI
24th Jun 2026198 PMAQI
24th Jun 2026189 PMAQI
24th Jun 20262110 PMAQI
24th Jun 20262111 PMAQI
25th Jun 20262212 AMAQI
25th Jun 2026241 AMAQI
25th Jun 2026242 AMAQI
25th Jun 2026223 AMAQI

23°C20/27°C

25th Jun 2026224 AMAQI
25th Jun 2026245 AMAQI
25th Jun 2026216 AMAQI
25th Jun 2026217 AMAQI
25th Jun 2026228 AMAQI
25th Jun 2026239 AMAQI
25th Jun 20262210 AMAQI
25th Jun 20262511 AMAQI
25th Jun 20262612 PMAQI
25th Jun 2026241 PMAQI
25th Jun 2026302 PMAQI
25th Jun 2026253 PMAQI
25th Jun 2026284 PMAQI
25th Jun 2026265 PMAQI
25th Jun 2026226 PMAQI
25th Jun 2026487 PMAQI
25th Jun 2026548 PMAQI
25th Jun 2026449 PMAQI
25th Jun 20262310 PMAQI
25th Jun 20262411 PMAQI
26th Jun 20262612 AMAQI
26th Jun 2026241 AMAQI
26th Jun 2026242 AMAQI
26th Jun 2026243 AMAQI

21°C20/21°C

26th Jun 2026224 AMAQI
26th Jun 2026205 AMAQI
26th Jun 2026216 AMAQI
26th Jun 2026197 AMAQI
26th Jun 2026188 AMAQI
26th Jun 2026369 AMAQI
26th Jun 20266410 AMAQI
26th Jun 20264611 AMAQI
26th Jun 20264812 PMAQI
26th Jun 2026451 PMAQI
26th Jun 2026502 PMAQI
26th Jun 2026363 PMAQI
26th Jun 2026194 PMAQI
26th Jun 2026205 PMAQI
26th Jun 2026206 PMAQI
26th Jun 2026207 PMAQI
26th Jun 2026208 PMAQI
26th Jun 2026229 PMAQI
26th Jun 20262210 PMAQI
26th Jun 20262611 PMAQI
27th Jun 20262512 AMAQI
27th Jun 2026251 AMAQI
27th Jun 2026242 AMAQI
27th Jun 2026243 AMAQI

22°C20/25°C

27th Jun 2026244 AMAQI
27th Jun 2026265 AMAQI
27th Jun 2026226 AMAQI
27th Jun 2026227 AMAQI
27th Jun 2026258 AMAQI
27th Jun 2026389 AMAQI
27th Jun 20264210 AMAQI
27th Jun 20264411 AMAQI
27th Jun 20262912 PMAQI
27th Jun 2026241 PMAQI
27th Jun 2026242 PMAQI
27th Jun 2026233 PMAQI
27th Jun 2026244 PMAQI
27th Jun 2026255 PMAQI
27th Jun 2026246 PMAQI
27th Jun 2026257 PMAQI
27th Jun 2026248 PMAQI
27th Jun 2026259 PMAQI
27th Jun 20262610 PMAQI
27th Jun 20262811 PMAQI
28th Jun 20263212 AMAQI
28th Jun 2026261 AMAQI
28th Jun 2026292 AMAQI
28th Jun 2026263 AMAQI

23°C22/25°C

28th Jun 2026274 AMAQI
28th Jun 2026265 AMAQI
28th Jun 2026276 AMAQI
28th Jun 2026277 AMAQI
28th Jun 2026248 AMAQI
28th Jun 2026249 AMAQI
28th Jun 20263010 AMAQI
28th Jun 20262311 AMAQI
28th Jun 20262612 PMAQI
28th Jun 2026291 PMAQI
28th Jun 2026382 PMAQI
28th Jun 2026443 PMAQI
28th Jun 2026344 PMAQI
28th Jun 2026255 PMAQI
28th Jun 2026266 PMAQI
28th Jun 2026267 PMAQI
28th Jun 2026268 PMAQI
28th Jun 2026249 PMAQI
28th Jun 20262610 PMAQI
28th Jun 20262711 PMAQI
29th Jun 20262612 AMAQI
29th Jun 2026221 AMAQI
29th Jun 2026252 AMAQI
29th Jun 2026273 AMAQI

22°C21/22°C

29th Jun 2026264 AMAQI
29th Jun 2026405 AMAQI
29th Jun 2026246 AMAQI
29th Jun 2026237 AMAQI
29th Jun 2026278 AMAQI
29th Jun 2026329 AMAQI
29th Jun 20263110 AMAQI
29th Jun 20262411 AMAQI
29th Jun 20262412 PMAQI
29th Jun 2026221 PMAQI
29th Jun 2026302 PMAQI
29th Jun 2026333 PMAQI
29th Jun 2026254 PMAQI
29th Jun 2026235 PMAQI
29th Jun 2026306 PMAQI
29th Jun 2026257 PMAQI
29th Jun 2026228 PMAQI
29th Jun 2026229 PMAQI
29th Jun 20262210 PMAQI
29th Jun 20262411 PMAQI
30th Jun 20262412 AMAQI
30th Jun 2026241 AMAQI
30th Jun 2026272 AMAQI
30th Jun 2026223 AMAQI

24°C21/28°C

30th Jun 2026224 AMAQI
30th Jun 2026225 AMAQI
30th Jun 2026246 AMAQI
30th Jun 2026237 AMAQI
30th Jun 2026258 AMAQI
30th Jun 2026259 AMAQI
30th Jun 20262410 AMAQI
30th Jun 20262611 AMAQI
30th Jun 20262912 PMAQI
30th Jun 2026281 PMAQI
30th Jun 2026342 PMAQI
30th Jun 2026303 PMAQI
30th Jun 2026624 PMAQI
30th Jun 2026595 PMAQI
30th Jun 2026246 PMAQI
30th Jun 2026227 PMAQI
30th Jun 2026248 PMAQI
30th Jun 2026249 PMAQI
30th Jun 20262410 PMAQI
30th Jun 20262611 PMAQI
1st Jul 20262612 AMAQI
1st Jul 2026241 AMAQI
1st Jul 2026252 AMAQI
1st Jul 2026263 AMAQI

26°C22/29°C

1st Jul 2026264 AMAQI
1st Jul 2026245 AMAQI
1st Jul 2026246 AMAQI
1st Jul 2026247 AMAQI
1st Jul 2026268 AMAQI
1st Jul 2026269 AMAQI
1st Jul 20262710 AMAQI
1st Jul 20262411 AMAQI
1st Jul 20262412 PMAQI
1st Jul 2026271 PMAQI
1st Jul 2026272 PMAQI
1st Jul 2026363 PMAQI
1st Jul 2026274 PMAQI
1st Jul 2026285 PMAQI
1st Jul 2026266 PMAQI
1st Jul 2026257 PMAQI
1st Jul 2026268 PMAQI
1st Jul 2026269 PMAQI
1st Jul 20262610 PMAQI
1st Jul 20262711 PMAQI
2nd Jul 20262812 AMAQI
2nd Jul 2026261 AMAQI
2nd Jul 2026262 AMAQI
2nd Jul 2026253 AMAQI

26°C23/29°C

2nd Jul 2026274 AMAQI
2nd Jul 2026265 AMAQI
2nd Jul 2026236 AMAQI
2nd Jul 2026267 AMAQI
2nd Jul 2026248 AMAQI
2nd Jul 2026239 AMAQI
2nd Jul 20262510 AMAQI
2nd Jul 20262011 AMAQI
2nd Jul 20261812 PMAQI
2nd Jul 2026191 PMAQI
2nd Jul 2026202 PMAQI
2nd Jul 2026203 PMAQI
2nd Jul 2026194 PMAQI
2nd Jul 2026225 PMAQI
2nd Jul 2026246 PMAQI
2nd Jul 2026227 PMAQI
2nd Jul 2026148 PMAQI
2nd Jul 2026169 PMAQI
2nd Jul 20262210 PMAQI
2nd Jul 2026811 PMAQI
3rd Jul 2026812 AMAQI
3rd Jul 202661 AMAQI
3rd Jul 2026122 AMAQI
3rd Jul 2026143 AMAQI

22°C21/25°C

3rd Jul 2026144 AMAQI
3rd Jul 2026175 AMAQI
3rd Jul 2026176 AMAQI
3rd Jul 2026127 AMAQI
3rd Jul 2026128 AMAQI
3rd Jul 202689 AMAQI
3rd Jul 20261410 AMAQI
3rd Jul 20261711 AMAQI
3rd Jul 20261412 PMAQI
3rd Jul 2026121 PMAQI
3rd Jul 2026272 PMAQI
3rd Jul 2026253 PMAQI
3rd Jul 2026244 PMAQI
3rd Jul 2026265 PMAQI
3rd Jul 2026266 PMAQI
3rd Jul 2026267 PMAQI
3rd Jul 2026278 PMAQI
3rd Jul 2026249 PMAQI
3rd Jul 20262610 PMAQI
3rd Jul 20262711 PMAQI
4th Jul 20262812 AMAQI
4th Jul 2026281 AMAQI
4th Jul 2026302 AMAQI
4th Jul 2026293 AMAQI

23°C21/26°C

4th Jul 2026264 AMAQI
4th Jul 2026265 AMAQI
4th Jul 2026286 AMAQI
4th Jul 2026287 AMAQI
4th Jul 2026288 AMAQI
4th Jul 2026789 AMAQI
4th Jul 20267210 AMAQI
4th Jul 20266911 AMAQI
4th Jul 20266712 PMAQI
4th Jul 2026671 PMAQI
4th Jul 2026642 PMAQI
4th Jul 2026573 PMAQI
4th Jul 2026604 PMAQI
4th Jul 2026335 PMAQI
4th Jul 2026216 PMAQI
4th Jul 2026127 PMAQI
4th Jul 2026128 PMAQI
4th Jul 2026129 PMAQI
4th Jul 2026810 PMAQI
4th Jul 20261211 PMAQI
5th Jul 20261712 AMAQI
5th Jul 2026211 AMAQI
5th Jul 2026252 AMAQI
5th Jul 2026253 AMAQI

24°C22/26°C

5th Jul 2026254 AMAQI
5th Jul 2026215 AMAQI
5th Jul 2026216 AMAQI
5th Jul 2026257 AMAQI
5th Jul 2026128 AMAQI
5th Jul 202689 AMAQI
5th Jul 20261210 AMAQI
5th Jul 20261211 AMAQI
5th Jul 20262112 PMAQI
5th Jul 202681 PMAQI
5th Jul 2026172 PMAQI
5th Jul 2026213 PMAQI
5th Jul 2026214 PMAQI
5th Jul 2026195 PMAQI
5th Jul 2026336 PMAQI
5th Jul 2026257 PMAQI
5th Jul 2026258 PMAQI
5th Jul 2026319 PMAQI
5th Jul 20262710 PMAQI
5th Jul 20262911 PMAQI
6th Jul 20262912 AMAQI
6th Jul 2026271 AMAQI
6th Jul 2026292 AMAQI
6th Jul 2026363 AMAQI

25°C22/28°C

6th Jul 2026294 AMAQI
6th Jul 2026365 AMAQI
6th Jul 2026336 AMAQI
6th Jul 2026367 AMAQI
6th Jul 2026408 AMAQI
6th Jul 2026339 AMAQI
6th Jul 20263110 AMAQI
6th Jul 20264011 AMAQI
6th Jul 20262012 PMAQI
6th Jul 2026201 PMAQI
6th Jul 2026222 PMAQI
6th Jul 2026253 PMAQI
6th Jul 2026254 PMAQI
6th Jul 2026205 PMAQI
6th Jul 2026206 PMAQI
6th Jul 2026207 PMAQI
6th Jul 2026268 PMAQI
6th Jul 2026269 PMAQI
6th Jul 20262610 PMAQI
6th Jul 20262511 PMAQI
7th Jul 20262812 AMAQI
7th Jul 2026261 AMAQI
7th Jul 2026282 AMAQI
7th Jul 2026303 AMAQI

23°C22/24°C

7th Jul 2026244 AMAQI
7th Jul 2026305 AMAQI
7th Jul 2026286 AMAQI
7th Jul 2026287 AMAQI
7th Jul 2026288 AMAQI
7th Jul 2026249 AMAQI
7th Jul 20262510 AMAQI
7th Jul 20262211 AMAQI
7th Jul 20262212 PMAQI
7th Jul 2026221 PMAQI
7th Jul 2026252 PMAQI
7th Jul 2026303 PMAQI
7th Jul 2026254 PMAQI
7th Jul 2026285 PMAQI
7th Jul 2026256 PMAQI
7th Jul 2026267 PMAQI
7th Jul 2026248 PMAQI
7th Jul 2026269 PMAQI
7th Jul 20262810 PMAQI
7th Jul 20262611 PMAQI
8th Jul 20263012 AMAQI
8th Jul 2026301 AMAQI
8th Jul 2026282 AMAQI
8th Jul 2026273 AMAQI

25°C21/30°C

8th Jul 2026274 AMAQI
8th Jul 2026295 AMAQI
8th Jul 2026276 AMAQI
8th Jul 2026287 AMAQI
8th Jul 2026278 AMAQI
8th Jul 2026269 AMAQI
8th Jul 20262510 AMAQI
8th Jul 20262411 AMAQI
8th Jul 20262312 PMAQI
8th Jul 2026221 PMAQI
8th Jul 2026242 PMAQI
8th Jul 2026283 PMAQI
8th Jul 2026264 PMAQI
8th Jul 2026265 PMAQI
8th Jul 2026226 PMAQI
8th Jul 2026227 PMAQI
8th Jul 2026208 PMAQI
8th Jul 2026239 PMAQI
8th Jul 20262110 PMAQI
8th Jul 20262411 PMAQI
9th Jul 20262812 AMAQI
9th Jul 2026281 AMAQI
9th Jul 2026272 AMAQI
9th Jul 2026193 AMAQI

26°C22/31°C

9th Jul 2026164 AMAQI
9th Jul 2026175 AMAQI
9th Jul 2026266 AMAQI
9th Jul 2026267 AMAQI
9th Jul 2026268 AMAQI
9th Jul 2026209 AMAQI
9th Jul 20262210 AMAQI
9th Jul 20262011 AMAQI
9th Jul 20262312 PMAQI
9th Jul 2026211 PMAQI
9th Jul 2026232 PMAQI
9th Jul 2026263 PMAQI
9th Jul 2026254 PMAQI
9th Jul 2026295 PMAQI
9th Jul 2026256 PMAQI
9th Jul 2026247 PMAQI
9th Jul 2026268 PMAQI
9th Jul 2026229 PMAQI
9th Jul 20262210 PMAQI
9th Jul 20262611 PMAQI
10th Jul 20262612 AMAQI
10th Jul 2026241 AMAQI
10th Jul 2026252 AMAQI
10th Jul 2026163 AMAQI

27°C24/32°C

10th Jul 2026234 AMAQI
10th Jul 2026165 AMAQI
10th Jul 2026266 AMAQI
10th Jul 2026267 AMAQI
10th Jul 2026268 AMAQI
10th Jul 2026269 AMAQI
10th Jul 20262710 AMAQI
10th Jul 20262611 AMAQI
10th Jul 20262612 PMAQI
10th Jul 2026261 PMAQI
10th Jul 2026222 PMAQI
10th Jul 2026223 PMAQI
10th Jul 2026244 PMAQI
10th Jul 2026285 PMAQI
10th Jul 2026286 PMAQI
10th Jul 2026267 PMAQI
10th Jul 2026288 PMAQI
10th Jul 2026289 PMAQI
10th Jul 20263010 PMAQI
10th Jul 20263011 PMAQI
11th Jul 20261812 AMAQI
11th Jul 202681 AMAQI
11th Jul 2026302 AMAQI
11th Jul 2026283 AMAQI

28°C25/33°C

11th Jul 2026184 AMAQI
11th Jul 2026305 AMAQI
11th Jul 2026306 AMAQI
11th Jul 2026287 AMAQI
11th Jul 2026318 AMAQI
11th Jul 2026319 AMAQI
11th Jul 20263210 AMAQI
11th Jul 20262811 AMAQI
11th Jul 20262812 PMAQI
11th Jul 2026241 PMAQI
11th Jul 2026222 PMAQI
11th Jul 2026243 PMAQI
11th Jul 2026244 PMAQI
11th Jul 2026315 PMAQI
11th Jul 2026296 PMAQI
11th Jul 2026267 PMAQI
11th Jul 2026278 PMAQI
11th Jul 2026299 PMAQI
11th Jul 20262810 PMAQI
11th Jul 20262811 PMAQI
12th Jul 20262812 AMAQI
12th Jul 2026281 AMAQI
12th Jul 2026302 AMAQI
12th Jul 2026283 AMAQI

28°C25/33°C

12th Jul 2026244 AMAQI
12th Jul 2026275 AMAQI
12th Jul 2026296 AMAQI
12th Jul 2026287 AMAQI
12th Jul 2026288 AMAQI
12th Jul 2026279 AMAQI
12th Jul 20263010 AMAQI
12th Jul 20262611 AMAQI
12th Jul 20262412 PMAQI
12th Jul 2026221 PMAQI
12th Jul 2026222 PMAQI
12th Jul 2026243 PMAQI
12th Jul 2026264 PMAQI
12th Jul 2026295 PMAQI
12th Jul 2026306 PMAQI
12th Jul 2026317 PMAQI
12th Jul 2026308 PMAQI
12th Jul 2026309 PMAQI
12th Jul 20263010 PMAQI
12th Jul 20262911 PMAQI
13th Jul 20263012 AMAQI
13th Jul 2026321 AMAQI
13th Jul 2026302 AMAQI
13th Jul 2026323 AMAQI

27°C25/30°C

13th Jul 2026304 AMAQI
4 AM
13th Jul 2026305 AMAQI
13th Jul 2026306 AMAQI
13th Jul 2026287 AMAQI
13th Jul 2026298 AMAQI
13th Jul 2026319 AMAQI
13th Jul 20263210 AMAQI
13th Jul 20262911 AMAQI
11 AM
13th Jul 20262812 PMAQI
13th Jul 2026241 PMAQI
13th Jul 2026252 PMAQI
13th Jul 2026243 PMAQI
13th Jul 2026264 PMAQI
13th Jul 2026315 PMAQI
13th Jul 2026356 PMAQI
13th Jul 2026357 PMAQI
7 PM
13th Jul 2026378 PMAQI
13th Jul 2026339 PMAQI
13th Jul 20263410 PMAQI
13th Jul 20263611 PMAQI
11 PM
3 AM

28°C26/30°C

Day time
Avg. Highest Time
10 AM

29AQI

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

24AQI

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. 29), while the lowest AQI was between 4 AM to 4 AM (Avg. 24).
Night time
Avg. Highest Time
2 AM

27AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
8 PM - 11 PM

24AQI

4 hours / Day
120 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 2 AM to 2 AM (Avg. 27), while the lowest AQI was between 8 PM to 11 PM (Avg. 24).

2026 Days Vs Air Quality

Niikura, Niiza, Saitama, Japan

2026

84%

163

16%

31

Total number of days with different AQI categories in last 194 days in 2026 (171 days remaining)

Good
163 Days
Moderate
31 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 84%

Health Risk Level:

Low

In 2026, 84% of 194 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

Niikura, Niiza, Saitama, 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
21AQI (US)
2nd January 2026
19AQI (US)
3rd January 2026
20AQI (US)
4th January 2026
26AQI (US)
5th January 2026
43AQI (US)
6th January 2026
15AQI (US)
7th January 2026
29AQI (US)
8th January 2026
38AQI (US)
9th January 2026
19AQI (US)
10th January 2026
38AQI (US)
11th January 2026
40AQI (US)
12th January 2026
18AQI (US)
13th January 2026
38AQI (US)
14th January 2026
15AQI (US)
15th January 2026
33AQI (US)
16th January 2026
49AQI (US)
17th January 2026
48AQI (US)
18th January 2026
25AQI (US)
19th January 2026
49AQI (US)
20th January 2026
34AQI (US)
21st January 2026
14AQI (US)
22nd January 2026
22AQI (US)
23rd January 2026
39AQI (US)
24th January 2026
41AQI (US)
25th January 2026
44AQI (US)
26th January 2026
25AQI (US)
27th January 2026
43AQI (US)
28th January 2026
13AQI (US)
29th January 2026
20AQI (US)
30th January 2026
38AQI (US)
31st January 2026
37AQI (US)
1st February 2026
40AQI (US)
2nd February 2026
25AQI (US)
3rd February 2026
24AQI (US)
4th February 2026
41AQI (US)
5th February 2026
58AQI (US)
6th February 2026
53AQI (US)
7th February 2026
14AQI (US)
8th February 2026
16AQI (US)
9th February 2026
35AQI (US)
10th February 2026
40AQI (US)
11th February 2026
50AQI (US)
12th February 2026
29AQI (US)
13th February 2026
43AQI (US)
14th February 2026
46AQI (US)
15th February 2026
65AQI (US)
16th February 2026
45AQI (US)
17th February 2026
22AQI (US)
18th February 2026
38AQI (US)
19th February 2026
30AQI (US)
20th February 2026
35AQI (US)
21st February 2026
46AQI (US)
22nd February 2026
44AQI (US)
23rd February 2026
43AQI (US)
24th February 2026
45AQI (US)
25th February 2026
23AQI (US)
26th February 2026
11AQI (US)
27th February 2026
29AQI (US)
28th February 2026
43AQI (US)
1st March 2026
35AQI (US)
2nd March 2026
64AQI (US)
3rd March 2026
43AQI (US)
4th March 2026
53AQI (US)
5th March 2026
55AQI (US)
6th March 2026
53AQI (US)
7th March 2026
47AQI (US)
8th March 2026
39AQI (US)
9th March 2026
51AQI (US)
10th March 2026
58AQI (US)
11th March 2026
60AQI (US)
12th March 2026
66AQI (US)
13th March 2026
40AQI (US)
14th March 2026
46AQI (US)
15th March 2026
56AQI (US)
16th March 2026
53AQI (US)
17th March 2026
52AQI (US)
18th March 2026
56AQI (US)
19th March 2026
33AQI (US)
20th March 2026
32AQI (US)
21st March 2026
57AQI (US)
22nd March 2026
48AQI (US)
23rd March 2026
52AQI (US)
24th March 2026
51AQI (US)
25th March 2026
62AQI (US)
26th March 2026
31AQI (US)
27th March 2026
26AQI (US)
28th March 2026
33AQI (US)
29th March 2026
56AQI (US)
30th March 2026
52AQI (US)
31st March 2026
21AQI (US)
1st April 2026
23AQI (US)
2nd April 2026
34AQI (US)
3rd April 2026
43AQI (US)
4th April 2026
46AQI (US)
5th April 2026
38AQI (US)
6th April 2026
29AQI (US)
7th April 2026
40AQI (US)
8th April 2026
27AQI (US)
9th April 2026
34AQI (US)
10th April 2026
48AQI (US)
11th April 2026
44AQI (US)
12th April 2026
35AQI (US)
13th April 2026
37AQI (US)
14th April 2026
42AQI (US)
15th April 2026
42AQI (US)
16th April 2026
29AQI (US)
17th April 2026
34AQI (US)
18th April 2026
33AQI (US)
19th April 2026
33AQI (US)
20th April 2026
36AQI (US)
21st April 2026
39AQI (US)
22nd April 2026
47AQI (US)
23rd April 2026
36AQI (US)
24th April 2026
34AQI (US)
25th April 2026
46AQI (US)
26th April 2026
52AQI (US)
27th April 2026
49AQI (US)
28th April 2026
43AQI (US)
29th April 2026
40AQI (US)
30th April 2026
39AQI (US)
1st May 2026
49AQI (US)
2nd May 2026
49AQI (US)
3rd May 2026
51AQI (US)
4th May 2026
29AQI (US)
5th May 2026
22AQI (US)
6th May 2026
30AQI (US)
7th May 2026
31AQI (US)
8th May 2026
26AQI (US)
9th May 2026
26AQI (US)
10th May 2026
29AQI (US)
11th May 2026
30AQI (US)
12th May 2026
37AQI (US)
13th May 2026
44AQI (US)
14th May 2026
33AQI (US)
15th May 2026
36AQI (US)
16th May 2026
85AQI (US)
17th May 2026
68AQI (US)
18th May 2026
53AQI (US)
19th May 2026
49AQI (US)
20th May 2026
62AQI (US)
21st May 2026
59AQI (US)
22nd May 2026
60AQI (US)
23rd May 2026
54AQI (US)
24th May 2026
58AQI (US)
25th May 2026
47AQI (US)
26th May 2026
39AQI (US)
27th May 2026
24AQI (US)
28th May 2026
25AQI (US)
29th May 2026
28AQI (US)
30th May 2026
28AQI (US)
31st May 2026
36AQI (US)
1st June 2026
30AQI (US)
2nd June 2026
30AQI (US)
3rd June 2026
25AQI (US)
4th June 2026
23AQI (US)
5th June 2026
22AQI (US)
6th June 2026
22AQI (US)
7th June 2026
22AQI (US)
8th June 2026
20AQI (US)
9th June 2026
23AQI (US)
10th June 2026
22AQI (US)
11th June 2026
25AQI (US)
12th June 2026
25AQI (US)
13th June 2026
35AQI (US)
14th June 2026
38AQI (US)
15th June 2026
18AQI (US)
16th June 2026
24AQI (US)
17th June 2026
23AQI (US)
18th June 2026
25AQI (US)
19th June 2026
28AQI (US)
20th June 2026
23AQI (US)
21st June 2026
20AQI (US)
22nd June 2026
19AQI (US)
23rd June 2026
22AQI (US)
24th June 2026
22AQI (US)
25th June 2026
27AQI (US)
26th June 2026
29AQI (US)
27th June 2026
27AQI (US)
28th June 2026
28AQI (US)
29th June 2026
26AQI (US)
30th June 2026
28AQI (US)
1st July 2026
26AQI (US)
2nd July 2026
22AQI (US)
3rd July 2026
18AQI (US)
4th July 2026
37AQI (US)
5th July 2026
21AQI (US)
6th July 2026
28AQI (US)
7th July 2026
26AQI (US)
8th July 2026
25AQI (US)
9th July 2026
24AQI (US)
10th July 2026
25AQI (US)
11th July 2026
26AQI (US)
12th July 2026
28AQI (US)
13th July 2026
30AQI (US)
14th July 2026
15th July 2026
16th July 2026
17th July 2026
18th July 2026
19th July 2026
20th July 2026
21st July 2026
22nd July 2026
23rd July 2026
24th July 2026
25th July 2026
26th July 2026
27th July 2026
28th July 2026
29th July 2026
30th July 2026
31st July 2026
1st August 2026
2nd August 2026
3rd August 2026
4th August 2026
5th August 2026
6th August 2026
7th August 2026
8th August 2026
9th August 2026
10th August 2026
11th August 2026
12th August 2026
13th August 2026
14th August 2026
15th August 2026
16th August 2026
17th August 2026
18th August 2026
19th August 2026
20th August 2026
21st August 2026
22nd August 2026
23rd August 2026
24th August 2026
25th August 2026
26th August 2026
27th August 2026
28th August 2026
29th August 2026
30th August 2026
31st August 2026
1st September 2026
2nd September 2026
3rd September 2026
4th September 2026
5th September 2026
6th September 2026
7th September 2026
8th September 2026
9th September 2026
10th September 2026
11th September 2026
12th September 2026
13th September 2026
14th September 2026
15th September 2026
16th September 2026
17th September 2026
18th September 2026
19th September 2026
20th September 2026
21st September 2026
22nd September 2026
23rd September 2026
24th September 2026
25th September 2026
26th September 2026
27th September 2026
28th September 2026
29th September 2026
30th September 2026
1st October 2026
2nd October 2026
3rd October 2026
4th October 2026
5th October 2026
6th October 2026
7th October 2026
8th October 2026
9th October 2026
10th October 2026
11th October 2026
12th October 2026
13th October 2026
14th October 2026
15th October 2026
16th October 2026
17th October 2026
18th October 2026
19th October 2026
20th October 2026
21st October 2026
22nd October 2026
23rd October 2026
24th October 2026
25th October 2026
26th October 2026
27th October 2026
28th October 2026
29th October 2026
30th October 2026
31st October 2026
1st November 2026
2nd November 2026
3rd November 2026
4th November 2026
5th November 2026
6th November 2026
7th November 2026
8th November 2026
9th November 2026
10th November 2026
11th November 2026
12th November 2026
13th November 2026
14th November 2026
15th November 2026
16th November 2026
17th November 2026
18th November 2026
19th November 2026
20th November 2026
21st November 2026
22nd November 2026
23rd November 2026
24th November 2026
25th November 2026
26th November 2026
27th November 2026
28th November 2026
29th November 2026
30th November 2026
1st December 2026
2nd December 2026
3rd December 2026
4th December 2026
5th December 2026
6th December 2026
7th December 2026
8th December 2026
9th December 2026
10th December 2026
11th December 2026
12th December 2026
13th December 2026
14th December 2026
15th December 2026
16th December 2026
17th December 2026
18th December 2026
19th December 2026
20th December 2026
21st December 2026
22nd December 2026
23rd December 2026
24th December 2026
25th December 2026
26th December 2026
27th December 2026
28th December 2026
29th December 2026
30th December 2026
31st December 2026

31AQI (US)

37AQI (US)

48AQI (US)

38AQI (US)

42AQI (US)

25AQI (US)

26AQI (US)

No. of days

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

202636AQI (US)

31
25
3
13
18
29
1
22
9
30
13
163
31

Highest AQI (US) recorded in

March

48AQI (US)

Lowest AQI (US) recorded in

June

25AQI (US)

202541AQI (US)

29
2
27
1
23
8
25
5
29
2
29
1
23
8
24
7
29
1
14
17
19
11
16
15
287
78

Highest AQI (US) recorded in

October

48AQI (US)

Lowest AQI (US) recorded in

June

35AQI (US)

202440AQI (US)

29
2
26
3
23
8
15
15
26
5
25
5
18
13
30
1
27
3
26
5
25
5
31
301
65

Highest AQI (US) recorded in

April

53AQI (US)

Lowest AQI (US) recorded in

September

33AQI (US)

202343AQI (US)

21
9
17
11
18
13
17
13
24
7
17
13
19
12
29
2
28
2
21
10
19
10
20
11
250
113

Highest AQI (US) recorded in

April

51AQI (US)

Lowest AQI (US) recorded in

August

30AQI (US)

202241AQI (US)

25
4
17
4
18
13
18
11
22
9
19
11
16
5
1
28
26
5
19
11
30
1
239
74

Highest AQI (US) recorded in

June

49AQI (US)

Lowest AQI (US) recorded in

August

21AQI (US)

202140AQI (US)

22
9
20
8
22
7
2
26
4
25
6
26
4
29
2
25
6
28
2
27
4
19
11
23
8
292
71
2

Highest AQI (US) recorded in

March

46AQI (US)

Lowest AQI (US) recorded in

July

34AQI (US)

202038AQI (US)

10
3
17
4
17
1
19
11
30
1
19
12
18
1
28
3
18
12
20
11
196
59

Highest AQI (US) recorded in

June

47AQI (US)

Lowest AQI (US) recorded in

September

19AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2023(Avg.)
43AQI (US)
Least Polluted Year Recorded
2026(Avg.)
36AQI (US)

Niikura's annual 2026 AQI (US) (36) shows an average percentage change of -10.9% (improved AQI (US)) compared to previous years: 2020 (38), 2021 (40), 2022 (41), 2023 (43), 2024 (40), 2025 (41).