Country Background
HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Nikko, Tochigi, 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

Nikko, Tochigi, Japan

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
2nd Jul 2022
76AQI
Lowest AQI recorded on
3rd Jul 2026
11AQI

Same Day Analysis (29th July):
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 2023 on the same day.

Day & Night AQI Trend: 28th Jul - 29th Jul 2026

Nikko, Tochigi, Japan

AQI
Day
Night
.

4 AM28th Jul 2026

7 PM

3 AM29th Jul 2026

Day time
Avg. Highest Time
5PM28th Jul

46AQI

Avg. Lowest Time
4AM28th Jul

24AQI

Night time
Avg. Highest Time
3AM29th Jul

53AQI

Avg. Lowest Time
7PM28th Jul

33AQI

In the last 24 hours,

Nikko's AQI reached its highest point of 53 at 3 AM during the Night, while the lowest point, 24, was recorded at 4 AM during the Day between 28th Jul and 29th Jul 2026.

Day & Night AQI Trend : Jun - Jul 2026

Nikko, Tochigi, Japan

JunJul
30th - 01st01st - 02nd02nd - 03rd03rd - 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
Day
Night
30th Jun 2026254 AMAQI
30th Jun 2026225 AMAQI
30th Jun 2026236 AMAQI
30th Jun 2026227 AMAQI
30th Jun 2026228 AMAQI
30th Jun 2026239 AMAQI
30th Jun 20262410 AMAQI
30th Jun 20262511 AMAQI
30th Jun 20262612 PMAQI
30th Jun 2026231 PMAQI
30th Jun 2026282 PMAQI
30th Jun 2026263 PMAQI
30th Jun 2026284 PMAQI
30th Jun 2026235 PMAQI
30th Jun 2026256 PMAQI
30th Jun 2026257 PMAQI
30th Jun 2026248 PMAQI
30th Jun 2026259 PMAQI
30th Jun 20262410 PMAQI
30th Jun 20262611 PMAQI
1st Jul 20262712 AMAQI
1st Jul 2026251 AMAQI
1st Jul 2026252 AMAQI
1st Jul 2026253 AMAQI

20°C16/26°C

1st Jul 2026254 AMAQI
1st Jul 2026235 AMAQI
1st Jul 2026246 AMAQI
1st Jul 2026247 AMAQI
1st Jul 2026238 AMAQI
1st Jul 2026249 AMAQI
1st Jul 20262410 AMAQI
1st Jul 20262611 AMAQI
1st Jul 20262412 PMAQI
1st Jul 2026261 PMAQI
1st Jul 2026252 PMAQI
1st Jul 2026283 PMAQI
1st Jul 2026264 PMAQI
1st Jul 2026265 PMAQI
1st Jul 2026266 PMAQI
1st Jul 2026267 PMAQI
1st Jul 2026268 PMAQI
1st Jul 2026269 PMAQI
1st Jul 20262910 PMAQI
1st Jul 20263111 PMAQI
2nd Jul 20263212 AMAQI
2nd Jul 2026301 AMAQI
2nd Jul 2026302 AMAQI
2nd Jul 2026303 AMAQI

21°C16/26°C

2nd Jul 2026284 AMAQI
2nd Jul 2026255 AMAQI
2nd Jul 2026256 AMAQI
2nd Jul 2026257 AMAQI
2nd Jul 2026248 AMAQI
2nd Jul 2026249 AMAQI
2nd Jul 20262310 AMAQI
2nd Jul 20261911 AMAQI
2nd Jul 20261812 PMAQI
2nd Jul 2026131 PMAQI
2nd Jul 202682 PMAQI
2nd Jul 202673 PMAQI
2nd Jul 202674 PMAQI
2nd Jul 202675 PMAQI
2nd Jul 202666 PMAQI
2nd Jul 202667 PMAQI
2nd Jul 2026118 PMAQI
2nd Jul 2026129 PMAQI
2nd Jul 2026710 PMAQI
2nd Jul 2026811 PMAQI
3rd Jul 2026612 AMAQI
3rd Jul 202661 AMAQI
3rd Jul 202682 AMAQI
3rd Jul 202683 AMAQI

19°C18/21°C

3rd Jul 202684 AMAQI
3rd Jul 202685 AMAQI
3rd Jul 202686 AMAQI
3rd Jul 202687 AMAQI
3rd Jul 202678 AMAQI
3rd Jul 202689 AMAQI
3rd Jul 2026810 AMAQI
3rd Jul 2026811 AMAQI
3rd Jul 2026812 PMAQI
3rd Jul 202681 PMAQI
3rd Jul 2026102 PMAQI
3rd Jul 2026203 PMAQI
3rd Jul 2026224 PMAQI
3rd Jul 2026205 PMAQI
3rd Jul 2026186 PMAQI
3rd Jul 2026167 PMAQI
3rd Jul 202688 PMAQI
3rd Jul 2026129 PMAQI
3rd Jul 20261710 PMAQI
3rd Jul 20261711 PMAQI
4th Jul 20261812 AMAQI
4th Jul 2026171 AMAQI
4th Jul 2026162 AMAQI
4th Jul 2026213 AMAQI

18°C17/21°C

4th Jul 2026214 AMAQI
4th Jul 2026245 AMAQI
4th Jul 2026266 AMAQI
4th Jul 2026267 AMAQI
4th Jul 2026268 AMAQI
4th Jul 2026239 AMAQI
4th Jul 20262510 AMAQI
4th Jul 20262411 AMAQI
4th Jul 20262412 PMAQI
4th Jul 2026241 PMAQI
4th Jul 2026262 PMAQI
4th Jul 2026273 PMAQI
4th Jul 2026274 PMAQI
4th Jul 2026535 PMAQI
4th Jul 2026576 PMAQI
4th Jul 2026507 PMAQI
4th Jul 2026528 PMAQI
4th Jul 2026549 PMAQI
4th Jul 20265410 PMAQI
4th Jul 20265411 PMAQI
5th Jul 20265212 AMAQI
5th Jul 2026611 AMAQI
5th Jul 2026672 AMAQI
5th Jul 2026683 AMAQI

19°C17/22°C

5th Jul 2026624 AMAQI
5th Jul 2026385 AMAQI
5th Jul 2026446 AMAQI
5th Jul 2026417 AMAQI
5th Jul 2026388 AMAQI
5th Jul 2026329 AMAQI
5th Jul 20261710 AMAQI
5th Jul 2026811 AMAQI
5th Jul 20261212 PMAQI
5th Jul 2026121 PMAQI
5th Jul 2026142 PMAQI
5th Jul 2026123 PMAQI
5th Jul 2026204 PMAQI
5th Jul 2026105 PMAQI
5th Jul 2026106 PMAQI
5th Jul 202697 PMAQI
5th Jul 2026168 PMAQI
5th Jul 2026129 PMAQI
5th Jul 20261810 PMAQI
5th Jul 20261811 PMAQI
6th Jul 20262412 AMAQI
6th Jul 2026221 AMAQI
6th Jul 2026222 AMAQI
6th Jul 2026243 AMAQI

20°C19/22°C

6th Jul 2026214 AMAQI
6th Jul 2026185 AMAQI
6th Jul 2026206 AMAQI
6th Jul 2026137 AMAQI
6th Jul 2026148 AMAQI
6th Jul 2026189 AMAQI
6th Jul 20261810 AMAQI
6th Jul 20262411 AMAQI
6th Jul 20263012 PMAQI
6th Jul 2026301 PMAQI
6th Jul 2026292 PMAQI
6th Jul 2026343 PMAQI
6th Jul 2026324 PMAQI
6th Jul 2026225 PMAQI
6th Jul 2026336 PMAQI
6th Jul 2026327 PMAQI
6th Jul 2026268 PMAQI
6th Jul 2026189 PMAQI
6th Jul 20261810 PMAQI
6th Jul 20261611 PMAQI
7th Jul 20261812 AMAQI
7th Jul 2026261 AMAQI
7th Jul 2026262 AMAQI
7th Jul 2026283 AMAQI

18°C18/20°C

7th Jul 2026204 AMAQI
7th Jul 2026285 AMAQI
7th Jul 2026226 AMAQI
7th Jul 2026257 AMAQI
7th Jul 2026278 AMAQI
7th Jul 2026249 AMAQI
7th Jul 20262310 AMAQI
7th Jul 20262211 AMAQI
7th Jul 20262212 PMAQI
7th Jul 2026211 PMAQI
7th Jul 2026242 PMAQI
7th Jul 2026283 PMAQI
7th Jul 2026254 PMAQI
7th Jul 2026285 PMAQI
7th Jul 2026276 PMAQI
7th Jul 2026287 PMAQI
7th Jul 2026268 PMAQI
7th Jul 2026269 PMAQI
7th Jul 20262610 PMAQI
7th Jul 20262611 PMAQI
8th Jul 20262912 AMAQI
8th Jul 2026301 AMAQI
8th Jul 2026282 AMAQI
8th Jul 2026283 AMAQI

20°C16/24°C

8th Jul 2026254 AMAQI
8th Jul 2026285 AMAQI
8th Jul 2026286 AMAQI
8th Jul 2026267 AMAQI
8th Jul 2026278 AMAQI
8th Jul 2026269 AMAQI
8th Jul 20262510 AMAQI
8th Jul 20262311 AMAQI
8th Jul 20262412 PMAQI
8th Jul 2026241 PMAQI
8th Jul 2026242 PMAQI
8th Jul 2026263 PMAQI
8th Jul 2026274 PMAQI
8th Jul 2026245 PMAQI
8th Jul 2026246 PMAQI
8th Jul 2026217 PMAQI
8th Jul 2026218 PMAQI
8th Jul 2026219 PMAQI
8th Jul 20262210 PMAQI
8th Jul 20262511 PMAQI
9th Jul 20262812 AMAQI
9th Jul 2026281 AMAQI
9th Jul 2026282 AMAQI
9th Jul 2026273 AMAQI

20°C16/25°C

9th Jul 2026254 AMAQI
9th Jul 2026255 AMAQI
9th Jul 2026256 AMAQI
9th Jul 2026267 AMAQI
9th Jul 2026258 AMAQI
9th Jul 2026219 AMAQI
9th Jul 20262210 AMAQI
9th Jul 20262211 AMAQI
9th Jul 20262212 PMAQI
9th Jul 2026211 PMAQI
9th Jul 2026242 PMAQI
9th Jul 2026283 PMAQI
9th Jul 2026264 PMAQI
9th Jul 2026255 PMAQI
9th Jul 2026266 PMAQI
9th Jul 2026267 PMAQI
9th Jul 2026288 PMAQI
9th Jul 2026279 PMAQI
9th Jul 20262810 PMAQI
9th Jul 20263011 PMAQI
10th Jul 20263012 AMAQI
10th Jul 2026281 AMAQI
10th Jul 2026272 AMAQI
10th Jul 2026263 AMAQI

22°C16/28°C

10th Jul 2026254 AMAQI
10th Jul 2026285 AMAQI
10th Jul 2026286 AMAQI
10th Jul 2026277 AMAQI
10th Jul 2026288 AMAQI
10th Jul 2026309 AMAQI
10th Jul 20263010 AMAQI
10th Jul 20262811 AMAQI
10th Jul 20262712 PMAQI
10th Jul 2026261 PMAQI
10th Jul 2026242 PMAQI
10th Jul 2026253 PMAQI
10th Jul 2026264 PMAQI
10th Jul 2026305 PMAQI
10th Jul 2026316 PMAQI
10th Jul 2026307 PMAQI
10th Jul 2026318 PMAQI
10th Jul 2026309 PMAQI
10th Jul 20263210 PMAQI
10th Jul 20263311 PMAQI
11th Jul 20263412 AMAQI
11th Jul 2026321 AMAQI
11th Jul 2026312 AMAQI
11th Jul 2026303 AMAQI

24°C18/31°C

11th Jul 2026284 AMAQI
11th Jul 2026305 AMAQI
11th Jul 2026316 AMAQI
11th Jul 2026327 AMAQI
11th Jul 2026328 AMAQI
11th Jul 2026349 AMAQI
11th Jul 20263610 AMAQI
11th Jul 20263011 AMAQI
11th Jul 20262912 PMAQI
11th Jul 2026251 PMAQI
11th Jul 2026242 PMAQI
11th Jul 2026243 PMAQI
11th Jul 2026284 PMAQI
11th Jul 2026335 PMAQI
11th Jul 2026316 PMAQI
11th Jul 2026317 PMAQI
11th Jul 2026288 PMAQI
11th Jul 2026319 PMAQI
11th Jul 20266010 PMAQI
11th Jul 20263411 PMAQI
12th Jul 20262912 AMAQI
12th Jul 2026231 AMAQI
12th Jul 2026232 AMAQI
12th Jul 2026313 AMAQI

24°C19/29°C

12th Jul 2026324 AMAQI
12th Jul 2026285 AMAQI
12th Jul 2026286 AMAQI
12th Jul 2026287 AMAQI
12th Jul 2026288 AMAQI
12th Jul 2026309 AMAQI
12th Jul 20263010 AMAQI
12th Jul 20262711 AMAQI
12th Jul 20262612 PMAQI
12th Jul 2026251 PMAQI
12th Jul 2026242 PMAQI
12th Jul 2026243 PMAQI
12th Jul 2026274 PMAQI
12th Jul 2026305 PMAQI
12th Jul 2026306 PMAQI
12th Jul 2026307 PMAQI
12th Jul 2026298 PMAQI
12th Jul 2026309 PMAQI
12th Jul 20263010 PMAQI
12th Jul 20262911 PMAQI
13th Jul 20263112 AMAQI
13th Jul 2026281 AMAQI
13th Jul 2026302 AMAQI
13th Jul 2026293 AMAQI

22°C19/24°C

13th Jul 2026274 AMAQI
13th Jul 2026285 AMAQI
13th Jul 2026286 AMAQI
13th Jul 2026277 AMAQI
13th Jul 2026278 AMAQI
13th Jul 2026299 AMAQI
13th Jul 20262810 AMAQI
13th Jul 20262511 AMAQI
13th Jul 20262512 PMAQI
13th Jul 2026221 PMAQI
13th Jul 2026202 PMAQI
13th Jul 2026213 PMAQI
13th Jul 2026234 PMAQI
13th Jul 2026285 PMAQI
13th Jul 2026296 PMAQI
13th Jul 2026307 PMAQI
13th Jul 2026308 PMAQI
13th Jul 2026299 PMAQI
13th Jul 20263010 PMAQI
13th Jul 20263111 PMAQI
14th Jul 20263112 AMAQI
14th Jul 2026321 AMAQI
14th Jul 2026292 AMAQI
14th Jul 2026283 AMAQI

23°C20/29°C

14th Jul 2026274 AMAQI
14th Jul 2026285 AMAQI
14th Jul 2026306 AMAQI
14th Jul 2026307 AMAQI
14th Jul 2026268 AMAQI
14th Jul 2026319 AMAQI
14th Jul 20263010 AMAQI
14th Jul 20262411 AMAQI
14th Jul 20262612 PMAQI
14th Jul 2026241 PMAQI
14th Jul 2026222 PMAQI
14th Jul 2026723 PMAQI
14th Jul 2026654 PMAQI
14th Jul 2026665 PMAQI
14th Jul 2026606 PMAQI
14th Jul 2026607 PMAQI
14th Jul 2026648 PMAQI
14th Jul 2026729 PMAQI
14th Jul 20266410 PMAQI
14th Jul 20266011 PMAQI
15th Jul 20265712 AMAQI
15th Jul 2026541 AMAQI
15th Jul 2026502 AMAQI
15th Jul 2026463 AMAQI

25°C20/31°C

15th Jul 2026464 AMAQI
15th Jul 2026435 AMAQI
15th Jul 2026366 AMAQI
15th Jul 2026427 AMAQI
15th Jul 2026408 AMAQI
15th Jul 2026439 AMAQI
15th Jul 20264110 AMAQI
15th Jul 20265411 AMAQI
15th Jul 20265412 PMAQI
15th Jul 2026681 PMAQI
15th Jul 2026672 PMAQI
15th Jul 2026593 PMAQI
15th Jul 2026594 PMAQI
15th Jul 2026645 PMAQI
15th Jul 2026676 PMAQI
15th Jul 2026627 PMAQI
15th Jul 2026688 PMAQI
15th Jul 2026669 PMAQI
15th Jul 20265910 PMAQI
15th Jul 20265611 PMAQI
16th Jul 20265312 AMAQI
16th Jul 2026551 AMAQI
16th Jul 2026522 AMAQI
16th Jul 2026503 AMAQI

26°C20/33°C

16th Jul 2026534 AMAQI
16th Jul 2026525 AMAQI
16th Jul 2026526 AMAQI
16th Jul 2026317 AMAQI
16th Jul 2026478 AMAQI
16th Jul 2026339 AMAQI
16th Jul 20264210 AMAQI
16th Jul 20264511 AMAQI
16th Jul 20264412 PMAQI
16th Jul 2026401 PMAQI
16th Jul 2026472 PMAQI
16th Jul 2026403 PMAQI
16th Jul 2026334 PMAQI
16th Jul 2026245 PMAQI
16th Jul 2026356 PMAQI
16th Jul 2026427 PMAQI
16th Jul 2026588 PMAQI
16th Jul 2026639 PMAQI
16th Jul 20266110 PMAQI
16th Jul 20266111 PMAQI
17th Jul 20265812 AMAQI
17th Jul 2026561 AMAQI
17th Jul 2026542 AMAQI
17th Jul 2026573 AMAQI

25°C22/31°C

17th Jul 2026604 AMAQI
17th Jul 2026575 AMAQI
17th Jul 2026656 AMAQI
17th Jul 2026637 AMAQI
17th Jul 2026658 AMAQI
17th Jul 2026579 AMAQI
17th Jul 20265610 AMAQI
17th Jul 20266611 AMAQI
17th Jul 20266612 PMAQI
17th Jul 2026651 PMAQI
17th Jul 2026642 PMAQI
17th Jul 2026483 PMAQI
17th Jul 2026304 PMAQI
17th Jul 2026315 PMAQI
17th Jul 2026346 PMAQI
17th Jul 2026327 PMAQI
17th Jul 2026298 PMAQI
17th Jul 2026249 PMAQI
17th Jul 20262210 PMAQI
17th Jul 20262211 PMAQI
18th Jul 20262412 AMAQI
18th Jul 2026181 AMAQI
18th Jul 2026192 AMAQI
18th Jul 2026203 AMAQI

24°C22/26°C

18th Jul 2026194 AMAQI
18th Jul 2026215 AMAQI
18th Jul 2026286 AMAQI
18th Jul 2026247 AMAQI
18th Jul 2026268 AMAQI
18th Jul 2026259 AMAQI
18th Jul 20262610 AMAQI
18th Jul 20262311 AMAQI
18th Jul 20262412 PMAQI
18th Jul 2026221 PMAQI
18th Jul 2026252 PMAQI
18th Jul 2026213 PMAQI
18th Jul 2026224 PMAQI
18th Jul 2026225 PMAQI
18th Jul 2026216 PMAQI
18th Jul 2026227 PMAQI
18th Jul 2026228 PMAQI
18th Jul 2026229 PMAQI
18th Jul 20262410 PMAQI
18th Jul 20262411 PMAQI
19th Jul 20262212 AMAQI
19th Jul 2026211 AMAQI
19th Jul 2026202 AMAQI
19th Jul 2026203 AMAQI

23°C22/26°C

19th Jul 2026184 AMAQI
19th Jul 2026235 AMAQI
19th Jul 2026266 AMAQI
19th Jul 2026267 AMAQI
19th Jul 2026248 AMAQI
19th Jul 2026249 AMAQI
19th Jul 20262110 AMAQI
19th Jul 20261911 AMAQI
19th Jul 20262212 PMAQI
19th Jul 2026221 PMAQI
19th Jul 2026292 PMAQI
19th Jul 2026293 PMAQI
19th Jul 2026454 PMAQI
19th Jul 2026365 PMAQI
19th Jul 2026446 PMAQI
19th Jul 2026357 PMAQI
19th Jul 2026348 PMAQI
19th Jul 2026399 PMAQI
19th Jul 20265010 PMAQI
19th Jul 20263811 PMAQI
20th Jul 20263612 AMAQI
20th Jul 2026401 AMAQI
20th Jul 2026342 AMAQI
20th Jul 2026363 AMAQI

24°C21/29°C

20th Jul 2026294 AMAQI
20th Jul 2026265 AMAQI
20th Jul 2026286 AMAQI
20th Jul 2026267 AMAQI
20th Jul 2026278 AMAQI
20th Jul 2026339 AMAQI
20th Jul 20264510 AMAQI
20th Jul 20264711 AMAQI
20th Jul 20264212 PMAQI
20th Jul 2026471 PMAQI
20th Jul 2026322 PMAQI
20th Jul 2026403 PMAQI
20th Jul 2026384 PMAQI
20th Jul 2026395 PMAQI
20th Jul 2026366 PMAQI
20th Jul 2026387 PMAQI
20th Jul 2026378 PMAQI
20th Jul 2026359 PMAQI
20th Jul 20264210 PMAQI
20th Jul 20264111 PMAQI
21st Jul 20263812 AMAQI
21st Jul 2026351 AMAQI
21st Jul 2026362 AMAQI
21st Jul 2026383 AMAQI

26°C21/32°C

21st Jul 2026354 AMAQI
21st Jul 2026395 AMAQI
21st Jul 2026426 AMAQI
21st Jul 2026437 AMAQI
21st Jul 2026458 AMAQI
21st Jul 2026439 AMAQI
21st Jul 20263510 AMAQI
21st Jul 20264811 AMAQI
21st Jul 2026521 PMAQI
21st Jul 2026522 PMAQI
21st Jul 2026553 PMAQI
21st Jul 2026564 PMAQI
21st Jul 2026525 PMAQI
21st Jul 2026476 PMAQI
21st Jul 2026887 PMAQI
21st Jul 2026508 PMAQI
21st Jul 2026469 PMAQI
21st Jul 20265210 PMAQI
21st Jul 20265411 PMAQI
22nd Jul 20265612 AMAQI
22nd Jul 2026561 AMAQI
22nd Jul 2026562 AMAQI
22nd Jul 2026583 AMAQI

27°C22/33°C

22nd Jul 2026554 AMAQI
22nd Jul 2026485 AMAQI
22nd Jul 2026536 AMAQI
22nd Jul 2026547 AMAQI
22nd Jul 2026578 AMAQI
22nd Jul 2026559 AMAQI
22nd Jul 20265310 AMAQI
22nd Jul 20265611 AMAQI
22nd Jul 20265812 PMAQI
22nd Jul 2026621 PMAQI
22nd Jul 2026602 PMAQI
22nd Jul 2026653 PMAQI
22nd Jul 2026744 PMAQI
22nd Jul 2026725 PMAQI
22nd Jul 2026746 PMAQI
22nd Jul 2026807 PMAQI
22nd Jul 2026748 PMAQI
22nd Jul 2026689 PMAQI
22nd Jul 20266710 PMAQI
22nd Jul 20264111 PMAQI
23rd Jul 20263512 AMAQI
23rd Jul 2026381 AMAQI
23rd Jul 2026512 AMAQI
23rd Jul 2026463 AMAQI

27°C21/34°C

23rd Jul 2026454 AMAQI
23rd Jul 2026445 AMAQI
23rd Jul 2026446 AMAQI
23rd Jul 2026357 AMAQI
23rd Jul 2026328 AMAQI
23rd Jul 2026369 AMAQI
23rd Jul 20264610 AMAQI
23rd Jul 20265611 AMAQI
23rd Jul 20265512 PMAQI
23rd Jul 2026561 PMAQI
23rd Jul 2026592 PMAQI
23rd Jul 2026583 PMAQI
23rd Jul 2026514 PMAQI
23rd Jul 2026615 PMAQI
23rd Jul 2026526 PMAQI
23rd Jul 2026477 PMAQI
23rd Jul 2026478 PMAQI
23rd Jul 2026459 PMAQI
23rd Jul 20264310 PMAQI
23rd Jul 20264011 PMAQI
24th Jul 20263612 AMAQI
24th Jul 2026341 AMAQI
24th Jul 2026362 AMAQI
24th Jul 2026293 AMAQI

26°C21/32°C

24th Jul 2026324 AMAQI
24th Jul 2026315 AMAQI
24th Jul 2026336 AMAQI
24th Jul 2026347 AMAQI
24th Jul 2026308 AMAQI
24th Jul 2026309 AMAQI
24th Jul 20263010 AMAQI
24th Jul 20264111 AMAQI
24th Jul 20264412 PMAQI
24th Jul 2026461 PMAQI
24th Jul 2026522 PMAQI
24th Jul 2026543 PMAQI
24th Jul 2026604 PMAQI
24th Jul 2026545 PMAQI
24th Jul 2026546 PMAQI
24th Jul 2026527 PMAQI
24th Jul 2026428 PMAQI
24th Jul 2026399 PMAQI
24th Jul 20263110 PMAQI
24th Jul 20263011 PMAQI
25th Jul 20263012 AMAQI
25th Jul 2026281 AMAQI
25th Jul 2026302 AMAQI
25th Jul 2026263 AMAQI

23°C20/26°C

25th Jul 2026264 AMAQI
25th Jul 2026305 AMAQI
25th Jul 2026326 AMAQI
25th Jul 2026407 AMAQI
25th Jul 2026388 AMAQI
25th Jul 2026349 AMAQI
25th Jul 20262410 AMAQI
25th Jul 20262011 AMAQI
25th Jul 20262012 PMAQI
25th Jul 2026281 PMAQI
25th Jul 2026292 PMAQI
25th Jul 2026223 PMAQI
25th Jul 2026284 PMAQI
25th Jul 2026285 PMAQI
25th Jul 2026326 PMAQI
25th Jul 2026447 PMAQI
25th Jul 2026438 PMAQI
25th Jul 2026409 PMAQI
25th Jul 20263410 PMAQI
25th Jul 20262611 PMAQI
26th Jul 20263412 AMAQI
26th Jul 2026291 AMAQI
26th Jul 2026302 AMAQI
26th Jul 2026283 AMAQI

24°C20/29°C

26th Jul 2026254 AMAQI
26th Jul 2026255 AMAQI
26th Jul 2026256 AMAQI
26th Jul 2026297 AMAQI
26th Jul 2026248 AMAQI
26th Jul 2026249 AMAQI
26th Jul 20263410 AMAQI
26th Jul 20263511 AMAQI
26th Jul 20263512 PMAQI
26th Jul 2026351 PMAQI
26th Jul 2026352 PMAQI
26th Jul 2026323 PMAQI
26th Jul 2026344 PMAQI
26th Jul 2026265 PMAQI
26th Jul 2026286 PMAQI
26th Jul 2026277 PMAQI
26th Jul 2026328 PMAQI
26th Jul 2026269 PMAQI
26th Jul 20263610 PMAQI
26th Jul 20263211 PMAQI
27th Jul 20263112 AMAQI
27th Jul 2026251 AMAQI
27th Jul 2026332 AMAQI
27th Jul 2026233 AMAQI

22°C20/26°C

27th Jul 2026324 AMAQI
27th Jul 2026245 AMAQI
27th Jul 2026246 AMAQI
27th Jul 2026267 AMAQI
27th Jul 2026258 AMAQI
27th Jul 2026289 AMAQI
27th Jul 20263610 AMAQI
27th Jul 20263611 AMAQI
27th Jul 20263012 PMAQI
27th Jul 2026281 PMAQI
27th Jul 2026322 PMAQI
27th Jul 2026243 PMAQI
27th Jul 2026304 PMAQI
27th Jul 2026245 PMAQI
27th Jul 2026346 PMAQI
27th Jul 2026347 PMAQI
27th Jul 2026308 PMAQI
27th Jul 2026309 PMAQI
27th Jul 20263310 PMAQI
27th Jul 20262711 PMAQI
28th Jul 20262812 AMAQI
28th Jul 2026291 AMAQI
28th Jul 2026222 AMAQI
28th Jul 2026273 AMAQI

21°C17/26°C

28th Jul 2026244 AMAQI
28th Jul 2026255 AMAQI
28th Jul 2026366 AMAQI
28th Jul 2026277 AMAQI
28th Jul 2026258 AMAQI
28th Jul 2026259 AMAQI
28th Jul 20262910 AMAQI
28th Jul 20263711 AMAQI
28th Jul 20262612 PMAQI
28th Jul 2026321 PMAQI
28th Jul 2026432 PMAQI
28th Jul 2026453 PMAQI
28th Jul 2026394 PMAQI
28th Jul 2026465 PMAQI
28th Jul 2026376 PMAQI
28th Jul 2026337 PMAQI
28th Jul 2026368 PMAQI
28th Jul 2026489 PMAQI
28th Jul 20264210 PMAQI
28th Jul 20264511 PMAQI
29th Jul 20264412 AMAQI
29th Jul 2026461 AMAQI
29th Jul 2026482 AMAQI
29th Jul 2026533 AMAQI

21°C19/25°C

29th Jul 2026494 AMAQI
4 AM
29th Jul 2026495 AMAQI
29th Jul 2026446 AMAQI
29th Jul 2026427 AMAQI
29th Jul 2026368 AMAQI
29th Jul 2026319 AMAQI
29th Jul 20263710 AMAQI
29th Jul 20264211 AMAQI
11 AM
29th Jul 20262912 PMAQI
29th Jul 2026271 PMAQI
29th Jul 2026262 PMAQI
29th Jul 2026243 PMAQI
29th Jul 2026264 PMAQI
29th Jul 2026275 PMAQI
29th Jul 2026246 PMAQI
29th Jul 2026277 PMAQI
7 PM
29th Jul 2026268 PMAQI
29th Jul 2026319 PMAQI
29th Jul 20262710 PMAQI
29th Jul 20262411 PMAQI
11 PM
3 AM

23°C18/28°C

Day time
Avg. Highest Time
2 PM - 7 PM

34AQI

6 hours / Day
180 hours / Month
Avg. Lowest Time
9 AM

30AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 2 PM to 7 PM (Avg. 34), while the lowest AQI was between 9 AM to 9 AM (Avg. 30).
Night time
Avg. Highest Time
8 PM - 10 PM

35AQI

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

33AQI

4 hours / Day
120 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 8 PM to 10 PM (Avg. 35), while the lowest AQI was between 12 AM to 3 AM (Avg. 33).

2026 Days Vs Air Quality

Nikko, Tochigi, Japan

2026

85%

178

15%

32

Total number of days with different AQI categories in last 210 days in 2026 (155 days remaining)

Good
178 Days
Moderate
32 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 85%

Health Risk Level:

Low

In 2026, 85% of 210 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

Nikko, Tochigi, 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
16AQI (US)
2nd January 2026
14AQI (US)
3rd January 2026
15AQI (US)
4th January 2026
16AQI (US)
5th January 2026
20AQI (US)
6th January 2026
20AQI (US)
7th January 2026
28AQI (US)
8th January 2026
26AQI (US)
9th January 2026
22AQI (US)
10th January 2026
34AQI (US)
11th January 2026
30AQI (US)
12th January 2026
13AQI (US)
13th January 2026
23AQI (US)
14th January 2026
12AQI (US)
15th January 2026
27AQI (US)
16th January 2026
42AQI (US)
17th January 2026
47AQI (US)
18th January 2026
26AQI (US)
19th January 2026
45AQI (US)
20th January 2026
28AQI (US)
21st January 2026
17AQI (US)
22nd January 2026
25AQI (US)
23rd January 2026
47AQI (US)
24th January 2026
48AQI (US)
25th January 2026
42AQI (US)
26th January 2026
17AQI (US)
27th January 2026
24AQI (US)
28th January 2026
26AQI (US)
29th January 2026
22AQI (US)
30th January 2026
36AQI (US)
31st January 2026
40AQI (US)
1st February 2026
40AQI (US)
2nd February 2026
13AQI (US)
3rd February 2026
20AQI (US)
4th February 2026
46AQI (US)
5th February 2026
46AQI (US)
6th February 2026
40AQI (US)
7th February 2026
16AQI (US)
8th February 2026
14AQI (US)
9th February 2026
39AQI (US)
10th February 2026
46AQI (US)
11th February 2026
48AQI (US)
12th February 2026
34AQI (US)
13th February 2026
46AQI (US)
14th February 2026
68AQI (US)
15th February 2026
64AQI (US)
16th February 2026
51AQI (US)
17th February 2026
18AQI (US)
18th February 2026
30AQI (US)
19th February 2026
28AQI (US)
20th February 2026
28AQI (US)
21st February 2026
44AQI (US)
22nd February 2026
42AQI (US)
23rd February 2026
47AQI (US)
24th February 2026
33AQI (US)
25th February 2026
32AQI (US)
26th February 2026
10AQI (US)
27th February 2026
43AQI (US)
28th February 2026
44AQI (US)
1st March 2026
46AQI (US)
2nd March 2026
86AQI (US)
3rd March 2026
50AQI (US)
4th March 2026
65AQI (US)
5th March 2026
64AQI (US)
6th March 2026
55AQI (US)
7th March 2026
47AQI (US)
8th March 2026
51AQI (US)
9th March 2026
45AQI (US)
10th March 2026
56AQI (US)
11th March 2026
58AQI (US)
12th March 2026
70AQI (US)
13th March 2026
42AQI (US)
14th March 2026
49AQI (US)
15th March 2026
60AQI (US)
16th March 2026
63AQI (US)
17th March 2026
58AQI (US)
18th March 2026
60AQI (US)
19th March 2026
38AQI (US)
20th March 2026
30AQI (US)
21st March 2026
55AQI (US)
22nd March 2026
53AQI (US)
23rd March 2026
51AQI (US)
24th March 2026
44AQI (US)
25th March 2026
55AQI (US)
26th March 2026
16AQI (US)
27th March 2026
15AQI (US)
28th March 2026
49AQI (US)
29th March 2026
58AQI (US)
30th March 2026
57AQI (US)
31st March 2026
40AQI (US)
1st April 2026
10AQI (US)
2nd April 2026
22AQI (US)
3rd April 2026
47AQI (US)
4th April 2026
45AQI (US)
5th April 2026
12AQI (US)
6th April 2026
17AQI (US)
7th April 2026
30AQI (US)
8th April 2026
20AQI (US)
9th April 2026
30AQI (US)
10th April 2026
46AQI (US)
11th April 2026
35AQI (US)
12th April 2026
32AQI (US)
13th April 2026
35AQI (US)
14th April 2026
43AQI (US)
15th April 2026
45AQI (US)
16th April 2026
34AQI (US)
17th April 2026
38AQI (US)
18th April 2026
38AQI (US)
19th April 2026
38AQI (US)
20th April 2026
37AQI (US)
21st April 2026
40AQI (US)
22nd April 2026
46AQI (US)
23rd April 2026
35AQI (US)
24th April 2026
32AQI (US)
25th April 2026
45AQI (US)
26th April 2026
50AQI (US)
27th April 2026
48AQI (US)
28th April 2026
40AQI (US)
29th April 2026
39AQI (US)
30th April 2026
41AQI (US)
1st May 2026
47AQI (US)
2nd May 2026
52AQI (US)
3rd May 2026
46AQI (US)
4th May 2026
29AQI (US)
5th May 2026
20AQI (US)
6th May 2026
34AQI (US)
7th May 2026
36AQI (US)
8th May 2026
28AQI (US)
9th May 2026
28AQI (US)
10th May 2026
35AQI (US)
11th May 2026
35AQI (US)
12th May 2026
42AQI (US)
13th May 2026
43AQI (US)
14th May 2026
37AQI (US)
15th May 2026
39AQI (US)
16th May 2026
85AQI (US)
17th May 2026
68AQI (US)
18th May 2026
54AQI (US)
19th May 2026
49AQI (US)
20th May 2026
62AQI (US)
21st May 2026
60AQI (US)
22nd May 2026
61AQI (US)
23rd May 2026
54AQI (US)
24th May 2026
58AQI (US)
25th May 2026
48AQI (US)
26th May 2026
40AQI (US)
27th May 2026
25AQI (US)
28th May 2026
26AQI (US)
29th May 2026
25AQI (US)
30th May 2026
24AQI (US)
31st May 2026
26AQI (US)
1st June 2026
28AQI (US)
2nd June 2026
34AQI (US)
3rd June 2026
21AQI (US)
4th June 2026
14AQI (US)
5th June 2026
21AQI (US)
6th June 2026
22AQI (US)
7th June 2026
21AQI (US)
8th June 2026
20AQI (US)
9th June 2026
22AQI (US)
10th June 2026
22AQI (US)
11th June 2026
25AQI (US)
12th June 2026
24AQI (US)
13th June 2026
26AQI (US)
14th June 2026
32AQI (US)
15th June 2026
18AQI (US)
16th June 2026
18AQI (US)
17th June 2026
24AQI (US)
18th June 2026
26AQI (US)
19th June 2026
28AQI (US)
20th June 2026
22AQI (US)
21st June 2026
14AQI (US)
22nd June 2026
19AQI (US)
23rd June 2026
21AQI (US)
24th June 2026
21AQI (US)
25th June 2026
26AQI (US)
26th June 2026
29AQI (US)
27th June 2026
26AQI (US)
28th June 2026
28AQI (US)
29th June 2026
27AQI (US)
30th June 2026
24AQI (US)
1st July 2026
26AQI (US)
2nd July 2026
18AQI (US)
3rd July 2026
11AQI (US)
4th July 2026
32AQI (US)
5th July 2026
29AQI (US)
6th July 2026
23AQI (US)
7th July 2026
25AQI (US)
8th July 2026
25AQI (US)
9th July 2026
26AQI (US)
10th July 2026
28AQI (US)
11th July 2026
32AQI (US)
12th July 2026
28AQI (US)
13th July 2026
27AQI (US)
14th July 2026
42AQI (US)
15th July 2026
54AQI (US)
16th July 2026
46AQI (US)
17th July 2026
49AQI (US)
18th July 2026
23AQI (US)
19th July 2026
28AQI (US)
20th July 2026
36AQI (US)
21st July 2026
47AQI (US)
22nd July 2026
60AQI (US)
23rd July 2026
46AQI (US)
24th July 2026
40AQI (US)
25th July 2026
30AQI (US)
26th July 2026
30AQI (US)
27th July 2026
29AQI (US)
28th July 2026
34AQI (US)
29th July 2026
35AQI (US)
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

27AQI (US)

37AQI (US)

51AQI (US)

36AQI (US)

42AQI (US)

23AQI (US)

33AQI (US)

No. of days

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

202636AQI (US)

31
25
3
13
18
30
22
9
30
27
2
178
32

Highest AQI (US) recorded in

March

51AQI (US)

Lowest AQI (US) recorded in

June

23AQI (US)

202539AQI (US)

31
28
26
5
26
4
27
4
25
5
16
15
24
7
30
19
12
24
6
28
3
304
61

Highest AQI (US) recorded in

July

50AQI (US)

Lowest AQI (US) recorded in

January

29AQI (US)

202432AQI (US)

31
29
29
1
22
7
31
28
2
29
2
31
27
3
31
29
1
31
348
16

Highest AQI (US) recorded in

April

42AQI (US)

Lowest AQI (US) recorded in

January

21AQI (US)

202335AQI (US)

12
1
27
4
27
3
20
11
28
3
29
1
31
27
2
31
232
25

Highest AQI (US) recorded in

July

47AQI (US)

Lowest AQI (US) recorded in

December

18AQI (US)

202236AQI (US)

31
21
27
4
16
1
25
6
18
12
16
5
1
27
1
29
2
12
223
31

Highest AQI (US) recorded in

August

48AQI (US)

Lowest AQI (US) recorded in

October

28AQI (US)

202132AQI (US)

29
2
26
2
29
21
29
2
24
6
26
5
28
3
28
2
30
1
29
1
31
330
24

Highest AQI (US) recorded in

June

42AQI (US)

Lowest AQI (US) recorded in

January

23AQI (US)

202032AQI (US)

12
1
20
1
18
25
5
29
2
13
18
19
28
3
27
3
31
222
33

Highest AQI (US) recorded in

August

55AQI (US)

Lowest AQI (US) recorded in

December

19AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2025(Avg.)
39AQI (US)
Least Polluted Year Recorded
2020(Avg.)
32AQI (US)

Nikko's annual 2026 AQI (US) (36) shows an average percentage change of 5.4% (worsened AQI (US)) compared to previous years: 2020 (32), 2021 (32), 2022 (36), 2023 (35), 2024 (32), 2025 (39).