Ritto, Shiga, 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
Ritto, Shiga, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (3rd June):
On this day, AQI across the 5 years varied significantly: 2026 ranks 4th highest AQI at 29 of Good air quality, showing improvement over 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
Ritto, Shiga, Japan
4 AM3rd Jun 2026
6 PM
3 AM4th Jun 2026
34AQI
26AQI
30AQI
26AQI
In the last 24 hours,
Ritto's AQI reached its highest point of 34 at 12 PM during the Day, while the lowest point, 26, was recorded at 3 AM during the Night between 3rd Jun and 4th Jun 2026.
Day & Night AQI Trend : May - Jun 2026
Ritto, Shiga, Japan
16°C13/20°C
19°C13/25°C
17°C12/22°C
14°C11/18°C
15°C9/21°C
17°C12/23°C
18°C15/23°C
19°C14/24°C
18°C14/24°C
19°C13/26°C
20°C14/26°C
20°C15/27°C
22°C15/30°C
22°C16/30°C
20°C17/27°C
21°C20/21°C
18°C16/20°C
17°C16/17°C
19°C16/23°C
21°C15/28°C
21°C16/26°C
19°C18/21°C
22°C19/27°C
20°C14/23°C
20°C12/28°C
23°C18/28°C
23°C17/29°C
18°C17/20°C
18°C17/19°C
19°C17/23°C
51AQI
35AQI
47AQI
36AQI
2026 Days Vs Air Quality
Ritto, Shiga, Japan
71%
109
29%
45
Total number of days with different AQI categories in last 155 days in 2026 (210 days remaining)
Under WHO’s Safe Air Quality Limits: 71%
Health Risk Level:
Low
In 2026, 71% 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
Ritto, Shiga, Japan
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
17AQI (US)
14AQI (US)
13AQI (US)
22AQI (US)
41AQI (US)
16AQI (US)
28AQI (US)
36AQI (US)
18AQI (US)
33AQI (US)
28AQI (US)
27AQI (US)
33AQI (US)
24AQI (US)
37AQI (US)
59AQI (US)
60AQI (US)
42AQI (US)
47AQI (US)
26AQI (US)
10AQI (US)
24AQI (US)
52AQI (US)
55AQI (US)
40AQI (US)
23AQI (US)
46AQI (US)
30AQI (US)
21AQI (US)
35AQI (US)
31AQI (US)
41AQI (US)
59AQI (US)
32AQI (US)
47AQI (US)
58AQI (US)
47AQI (US)
12AQI (US)
16AQI (US)
42AQI (US)
55AQI (US)
43AQI (US)
54AQI (US)
56AQI (US)
75AQI (US)
64AQI (US)
53AQI (US)
14AQI (US)
24AQI (US)
34AQI (US)
32AQI (US)
55AQI (US)
47AQI (US)
43AQI (US)
52AQI (US)
20AQI (US)
12AQI (US)
46AQI (US)
47AQI (US)
51AQI (US)
72AQI (US)
50AQI (US)
63AQI (US)
56AQI (US)
51AQI (US)
44AQI (US)
46AQI (US)
51AQI (US)
59AQI (US)
55AQI (US)
67AQI (US)
48AQI (US)
47AQI (US)
61AQI (US)
62AQI (US)
53AQI (US)
58AQI (US)
38AQI (US)
46AQI (US)
52AQI (US)
54AQI (US)
51AQI (US)
58AQI (US)
56AQI (US)
13AQI (US)
33AQI (US)
67AQI (US)
71AQI (US)
54AQI (US)
16AQI (US)
24AQI (US)
41AQI (US)
49AQI (US)
37AQI (US)
18AQI (US)
36AQI (US)
41AQI (US)
38AQI (US)
41AQI (US)
47AQI (US)
36AQI (US)
38AQI (US)
37AQI (US)
49AQI (US)
37AQI (US)
37AQI (US)
41AQI (US)
32AQI (US)
38AQI (US)
38AQI (US)
41AQI (US)
46AQI (US)
36AQI (US)
32AQI (US)
46AQI (US)
49AQI (US)
48AQI (US)
45AQI (US)
40AQI (US)
31AQI (US)
43AQI (US)
54AQI (US)
54AQI (US)
26AQI (US)
20AQI (US)
34AQI (US)
35AQI (US)
29AQI (US)
29AQI (US)
35AQI (US)
37AQI (US)
40AQI (US)
44AQI (US)
41AQI (US)
41AQI (US)
83AQI (US)
67AQI (US)
54AQI (US)
48AQI (US)
61AQI (US)
61AQI (US)
62AQI (US)
55AQI (US)
61AQI (US)
50AQI (US)
40AQI (US)
25AQI (US)
26AQI (US)
26AQI (US)
25AQI (US)
28AQI (US)
30AQI (US)
31AQI (US)
29AQI (US)
32AQI (US)
42AQI (US)
52AQI (US)
39AQI (US)
43AQI (US)
30AQI (US)
No. of days
202641AQI (US)
Highest AQI (US) recorded in
March52AQI (US)
Lowest AQI (US) recorded in
June30AQI (US)
202540AQI (US)
Highest AQI (US) recorded in
July51AQI (US)
Lowest AQI (US) recorded in
September30AQI (US)
202433AQI (US)
Highest AQI (US) recorded in
April43AQI (US)
Lowest AQI (US) recorded in
August27AQI (US)
202338AQI (US)
Highest AQI (US) recorded in
April48AQI (US)
Lowest AQI (US) recorded in
August29AQI (US)
202236AQI (US)
Highest AQI (US) recorded in
March47AQI (US)
Lowest AQI (US) recorded in
October29AQI (US)
202133AQI (US)
Highest AQI (US) recorded in
June39AQI (US)
Lowest AQI (US) recorded in
August27AQI (US)
202031AQI (US)
Highest AQI (US) recorded in
August50AQI (US)
Lowest AQI (US) recorded in
July21AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Ritto's annual 2026 AQI (US) (41) shows an average percentage change of 17.5% (worsened AQI (US)) compared to previous years: 2020 (31), 2021 (33), 2022 (36), 2023 (38), 2024 (33), 2025 (40).