Nagato, Yamaguchi, 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
Nagato, Yamaguchi, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (4th June):
On this day, AQI across the 5 years varied significantly: 2026 ranks the most lowest AQI at 25 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: 3rd Jun - 4th Jun 2026
Nagato, Yamaguchi, Japan
5 AM3rd Jun 2026
7 PM
4 AM4th Jun 2026
32AQI
23AQI
29AQI
20AQI
In the last 24 hours,
Nagato's AQI reached its highest point of 32 at 12 PM during the Day, while the lowest point, 20, was recorded at 10 PM during the Night between 3rd Jun and 4th Jun 2026.
Day & Night AQI Trend : May - Jun 2026
Nagato, Yamaguchi, Japan
16°C12/20°C
17°C12/21°C
16°C13/17°C
14°C10/18°C
15°C10/20°C
16°C12/21°C
17°C14/21°C
17°C14/21°C
17°C14/22°C
18°C14/23°C
18°C15/23°C
19°C14/24°C
20°C15/26°C
20°C16/25°C
20°C18/21°C
20°C18/21°C
18°C15/20°C
19°C15/23°C
20°C18/22°C
21°C18/25°C
21°C19/25°C
19°C19/20°C
20°C19/21°C
20°C15/23°C
20°C16/25°C
22°C17/27°C
22°C19/26°C
20°C19/21°C
21°C18/23°C
20°C17/22°C
48AQI
36AQI
47AQI
38AQI
2026 Days Vs Air Quality
Nagato, Yamaguchi, Japan
76%
118
24%
37
Total number of days with different AQI categories in last 155 days in 2026 (210 days remaining)
Under WHO’s Safe Air Quality Limits: 76%
Health Risk Level:
Low
In 2026, 76% of 155 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
Nagato, Yamaguchi, Japan
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
26AQI (US)
26AQI (US)
29AQI (US)
41AQI (US)
46AQI (US)
30AQI (US)
40AQI (US)
34AQI (US)
22AQI (US)
36AQI (US)
30AQI (US)
28AQI (US)
43AQI (US)
22AQI (US)
42AQI (US)
66AQI (US)
68AQI (US)
64AQI (US)
60AQI (US)
38AQI (US)
14AQI (US)
26AQI (US)
41AQI (US)
44AQI (US)
14AQI (US)
19AQI (US)
48AQI (US)
28AQI (US)
41AQI (US)
21AQI (US)
26AQI (US)
50AQI (US)
48AQI (US)
32AQI (US)
40AQI (US)
43AQI (US)
54AQI (US)
22AQI (US)
20AQI (US)
38AQI (US)
42AQI (US)
51AQI (US)
44AQI (US)
60AQI (US)
54AQI (US)
46AQI (US)
57AQI (US)
22AQI (US)
34AQI (US)
52AQI (US)
54AQI (US)
64AQI (US)
40AQI (US)
36AQI (US)
14AQI (US)
22AQI (US)
28AQI (US)
49AQI (US)
41AQI (US)
44AQI (US)
70AQI (US)
44AQI (US)
56AQI (US)
52AQI (US)
50AQI (US)
55AQI (US)
29AQI (US)
33AQI (US)
34AQI (US)
56AQI (US)
64AQI (US)
42AQI (US)
44AQI (US)
60AQI (US)
57AQI (US)
47AQI (US)
54AQI (US)
50AQI (US)
45AQI (US)
36AQI (US)
44AQI (US)
40AQI (US)
50AQI (US)
55AQI (US)
24AQI (US)
44AQI (US)
77AQI (US)
77AQI (US)
52AQI (US)
16AQI (US)
22AQI (US)
56AQI (US)
54AQI (US)
24AQI (US)
38AQI (US)
34AQI (US)
28AQI (US)
26AQI (US)
37AQI (US)
45AQI (US)
36AQI (US)
51AQI (US)
46AQI (US)
28AQI (US)
38AQI (US)
38AQI (US)
38AQI (US)
30AQI (US)
35AQI (US)
36AQI (US)
47AQI (US)
38AQI (US)
15AQI (US)
36AQI (US)
45AQI (US)
49AQI (US)
48AQI (US)
48AQI (US)
42AQI (US)
34AQI (US)
50AQI (US)
49AQI (US)
38AQI (US)
32AQI (US)
31AQI (US)
32AQI (US)
34AQI (US)
28AQI (US)
28AQI (US)
34AQI (US)
36AQI (US)
36AQI (US)
42AQI (US)
34AQI (US)
38AQI (US)
77AQI (US)
63AQI (US)
54AQI (US)
46AQI (US)
61AQI (US)
66AQI (US)
68AQI (US)
62AQI (US)
64AQI (US)
56AQI (US)
41AQI (US)
24AQI (US)
26AQI (US)
26AQI (US)
24AQI (US)
28AQI (US)
28AQI (US)
28AQI (US)
26AQI (US)
25AQI (US)
36AQI (US)
41AQI (US)
48AQI (US)
38AQI (US)
43AQI (US)
27AQI (US)
No. of days
202641AQI (US)
Highest AQI (US) recorded in
March48AQI (US)
Lowest AQI (US) recorded in
June27AQI (US)
202543AQI (US)
Highest AQI (US) recorded in
March48AQI (US)
Lowest AQI (US) recorded in
September30AQI (US)
202437AQI (US)
Highest AQI (US) recorded in
March47AQI (US)
Lowest AQI (US) recorded in
July28AQI (US)
202342AQI (US)
Highest AQI (US) recorded in
April56AQI (US)
Lowest AQI (US) recorded in
August31AQI (US)
202240AQI (US)
Highest AQI (US) recorded in
March50AQI (US)
Lowest AQI (US) recorded in
September33AQI (US)
202136AQI (US)
Highest AQI (US) recorded in
May43AQI (US)
Lowest AQI (US) recorded in
August29AQI (US)
202034AQI (US)
Highest AQI (US) recorded in
August50AQI (US)
Lowest AQI (US) recorded in
July25AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Nagato's annual 2026 AQI (US) (41) shows an average percentage change of 6.7% (worsened AQI (US)) compared to previous years: 2020 (34), 2021 (36), 2022 (40), 2023 (42), 2024 (37), 2025 (43).