Nikko, Tochigi, Japan Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
June Air Quality Analysis
Nikko, Tochigi, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (3rd June):
On this day, AQI across the 5 years varied significantly: 2026 ranks the most lowest AQI at 21 of Good air quality, showing improvement over 2025, 2024, 2023 and 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 2nd Jun - 3rd Jun 2026
Nikko, Tochigi, Japan
4 AM2nd Jun 2026
6 PM
3 AM3rd Jun 2026
46AQI
28AQI
30AQI
26AQI
In the last 24 hours,
Nikko's AQI reached its highest point of 46 at 10 AM during the Day, while the lowest point, 26, was recorded at 3 AM during the Night between 2nd Jun and 3rd Jun 2026.
Day & Night AQI Trend : May - Jun 2026
Nikko, Tochigi, Japan
12°C5/19°C
13°C7/19°C
17°C11/24°C
16°C9/22°C
11°C6/16°C
12°C4/20°C
16°C12/21°C
16°C10/22°C
15°C11/21°C
15°C9/22°C
15°C10/22°C
16°C9/23°C
18°C11/27°C
19°C12/28°C
21°C14/29°C
20°C14/27°C
16°C13/17°C
11°C9/12°C
12°C6/17°C
14°C11/19°C
17°C11/24°C
18°C13/23°C
20°C14/25°C
21°C16/27°C
20°C12/27°C
19°C10/27°C
20°C13/27°C
22°C15/29°C
19°C15/24°C
15°C13/16°C
50AQI
35AQI
46AQI
34AQI
2026 Days Vs Air Quality
Nikko, Tochigi, Japan
81%
124
19%
30
Total number of days with different AQI categories in last 154 days in 2026 (211 days remaining)
Under WHO’s Safe Air Quality Limits: 81%
Health Risk Level:
Low
In 2026, 81% of 154 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
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
16AQI (US)
14AQI (US)
15AQI (US)
16AQI (US)
20AQI (US)
20AQI (US)
28AQI (US)
26AQI (US)
22AQI (US)
34AQI (US)
30AQI (US)
13AQI (US)
23AQI (US)
12AQI (US)
27AQI (US)
42AQI (US)
47AQI (US)
26AQI (US)
45AQI (US)
28AQI (US)
17AQI (US)
25AQI (US)
47AQI (US)
48AQI (US)
42AQI (US)
17AQI (US)
24AQI (US)
26AQI (US)
22AQI (US)
36AQI (US)
40AQI (US)
40AQI (US)
13AQI (US)
20AQI (US)
46AQI (US)
46AQI (US)
40AQI (US)
16AQI (US)
14AQI (US)
39AQI (US)
46AQI (US)
48AQI (US)
34AQI (US)
46AQI (US)
68AQI (US)
64AQI (US)
51AQI (US)
18AQI (US)
30AQI (US)
28AQI (US)
28AQI (US)
44AQI (US)
42AQI (US)
47AQI (US)
33AQI (US)
32AQI (US)
10AQI (US)
43AQI (US)
44AQI (US)
46AQI (US)
86AQI (US)
50AQI (US)
65AQI (US)
64AQI (US)
55AQI (US)
47AQI (US)
51AQI (US)
45AQI (US)
56AQI (US)
58AQI (US)
70AQI (US)
42AQI (US)
49AQI (US)
60AQI (US)
63AQI (US)
58AQI (US)
60AQI (US)
38AQI (US)
30AQI (US)
55AQI (US)
53AQI (US)
51AQI (US)
44AQI (US)
55AQI (US)
16AQI (US)
15AQI (US)
49AQI (US)
58AQI (US)
57AQI (US)
40AQI (US)
10AQI (US)
22AQI (US)
47AQI (US)
45AQI (US)
12AQI (US)
17AQI (US)
30AQI (US)
20AQI (US)
30AQI (US)
46AQI (US)
35AQI (US)
32AQI (US)
35AQI (US)
43AQI (US)
45AQI (US)
34AQI (US)
38AQI (US)
38AQI (US)
38AQI (US)
37AQI (US)
40AQI (US)
46AQI (US)
35AQI (US)
32AQI (US)
45AQI (US)
50AQI (US)
48AQI (US)
40AQI (US)
39AQI (US)
41AQI (US)
47AQI (US)
52AQI (US)
46AQI (US)
29AQI (US)
20AQI (US)
34AQI (US)
36AQI (US)
28AQI (US)
28AQI (US)
35AQI (US)
35AQI (US)
42AQI (US)
43AQI (US)
37AQI (US)
39AQI (US)
85AQI (US)
68AQI (US)
54AQI (US)
49AQI (US)
62AQI (US)
60AQI (US)
61AQI (US)
54AQI (US)
58AQI (US)
48AQI (US)
40AQI (US)
25AQI (US)
26AQI (US)
25AQI (US)
24AQI (US)
26AQI (US)
28AQI (US)
34AQI (US)
21AQI (US)
27AQI (US)
37AQI (US)
51AQI (US)
36AQI (US)
42AQI (US)
28AQI (US)
No. of days
202639AQI (US)
Highest AQI (US) recorded in
March51AQI (US)
Lowest AQI (US) recorded in
January27AQI (US)
202539AQI (US)
Highest AQI (US) recorded in
July50AQI (US)
Lowest AQI (US) recorded in
January29AQI (US)
202432AQI (US)
Highest AQI (US) recorded in
April42AQI (US)
Lowest AQI (US) recorded in
January21AQI (US)
202335AQI (US)
Highest AQI (US) recorded in
July47AQI (US)
Lowest AQI (US) recorded in
December18AQI (US)
202236AQI (US)
Highest AQI (US) recorded in
August48AQI (US)
Lowest AQI (US) recorded in
October28AQI (US)
202132AQI (US)
Highest AQI (US) recorded in
June42AQI (US)
Lowest AQI (US) recorded in
January23AQI (US)
202032AQI (US)
Highest AQI (US) recorded in
August55AQI (US)
Lowest AQI (US) recorded in
December19AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Nikko's annual 2026 AQI (US) (39) shows an average percentage change of 14.2% (worsened AQI (US)) compared to previous years: 2020 (32), 2021 (32), 2022 (36), 2023 (35), 2024 (32), 2025 (39).