Saijo, Ehime, 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
Saijo, Ehime, 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 18 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
Saijo, Ehime, Japan
5 AM2nd Jun 2026
7 PM
4 AM3rd Jun 2026
48AQI
8AQI
40AQI
16AQI
In the last 24 hours,
Saijo's AQI reached its highest point of 48 at 6 AM during the Day, while the lowest point, 8, was recorded at 2 PM during the Day between 2nd Jun and 3rd Jun 2026.
Day & Night AQI Trend : May - Jun 2026
Saijo, Ehime, Japan
12°C7/18°C
13°C8/17°C
16°C10/22°C
14°C8/19°C
12°C8/18°C
13°C8/19°C
14°C10/20°C
14°C9/19°C
15°C11/20°C
16°C12/21°C
16°C11/21°C
17°C12/22°C
18°C13/24°C
18°C13/25°C
18°C12/24°C
18°C15/20°C
19°C18/21°C
18°C14/22°C
17°C15/18°C
18°C17/21°C
19°C16/22°C
18°C14/22°C
18°C17/18°C
20°C18/22°C
20°C15/25°C
19°C14/25°C
19°C14/25°C
18°C14/24°C
19°C17/19°C
20°C18/23°C
46AQI
37AQI
45AQI
39AQI
2026 Days Vs Air Quality
Saijo, Ehime, Japan
71%
110
29%
44
Total number of days with different AQI categories in last 154 days in 2026 (211 days remaining)
Under WHO’s Safe Air Quality Limits: 71%
Health Risk Level:
Low
In 2026, 71% 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
Saijo, Ehime, Japan
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
32AQI (US)
27AQI (US)
32AQI (US)
44AQI (US)
56AQI (US)
33AQI (US)
36AQI (US)
44AQI (US)
26AQI (US)
34AQI (US)
33AQI (US)
28AQI (US)
34AQI (US)
30AQI (US)
58AQI (US)
64AQI (US)
66AQI (US)
66AQI (US)
73AQI (US)
32AQI (US)
20AQI (US)
28AQI (US)
35AQI (US)
47AQI (US)
40AQI (US)
20AQI (US)
44AQI (US)
36AQI (US)
38AQI (US)
28AQI (US)
22AQI (US)
44AQI (US)
48AQI (US)
32AQI (US)
34AQI (US)
41AQI (US)
45AQI (US)
28AQI (US)
23AQI (US)
38AQI (US)
45AQI (US)
52AQI (US)
43AQI (US)
40AQI (US)
62AQI (US)
76AQI (US)
54AQI (US)
28AQI (US)
24AQI (US)
50AQI (US)
48AQI (US)
68AQI (US)
74AQI (US)
68AQI (US)
54AQI (US)
38AQI (US)
25AQI (US)
52AQI (US)
20AQI (US)
34AQI (US)
60AQI (US)
41AQI (US)
28AQI (US)
49AQI (US)
49AQI (US)
40AQI (US)
28AQI (US)
42AQI (US)
56AQI (US)
54AQI (US)
58AQI (US)
37AQI (US)
42AQI (US)
60AQI (US)
50AQI (US)
45AQI (US)
60AQI (US)
50AQI (US)
60AQI (US)
46AQI (US)
58AQI (US)
58AQI (US)
55AQI (US)
56AQI (US)
16AQI (US)
38AQI (US)
69AQI (US)
82AQI (US)
88AQI (US)
28AQI (US)
16AQI (US)
48AQI (US)
54AQI (US)
42AQI (US)
24AQI (US)
54AQI (US)
40AQI (US)
39AQI (US)
48AQI (US)
36AQI (US)
35AQI (US)
36AQI (US)
46AQI (US)
70AQI (US)
60AQI (US)
26AQI (US)
42AQI (US)
50AQI (US)
50AQI (US)
45AQI (US)
38AQI (US)
43AQI (US)
32AQI (US)
20AQI (US)
46AQI (US)
44AQI (US)
42AQI (US)
52AQI (US)
45AQI (US)
29AQI (US)
40AQI (US)
52AQI (US)
43AQI (US)
28AQI (US)
26AQI (US)
29AQI (US)
38AQI (US)
30AQI (US)
28AQI (US)
33AQI (US)
34AQI (US)
32AQI (US)
38AQI (US)
30AQI (US)
34AQI (US)
78AQI (US)
64AQI (US)
53AQI (US)
46AQI (US)
60AQI (US)
65AQI (US)
69AQI (US)
60AQI (US)
62AQI (US)
54AQI (US)
42AQI (US)
26AQI (US)
26AQI (US)
26AQI (US)
25AQI (US)
28AQI (US)
33AQI (US)
24AQI (US)
18AQI (US)
39AQI (US)
45AQI (US)
50AQI (US)
42AQI (US)
42AQI (US)
25AQI (US)
No. of days
202643AQI (US)
Highest AQI (US) recorded in
March50AQI (US)
Lowest AQI (US) recorded in
June25AQI (US)
202550AQI (US)
Highest AQI (US) recorded in
October59AQI (US)
Lowest AQI (US) recorded in
September32AQI (US)
202447AQI (US)
Highest AQI (US) recorded in
April66AQI (US)
Lowest AQI (US) recorded in
December34AQI (US)
202347AQI (US)
Highest AQI (US) recorded in
April59AQI (US)
Lowest AQI (US) recorded in
August34AQI (US)
202246AQI (US)
Highest AQI (US) recorded in
May58AQI (US)
Lowest AQI (US) recorded in
December37AQI (US)
202144AQI (US)
Highest AQI (US) recorded in
June56AQI (US)
Lowest AQI (US) recorded in
December38AQI (US)
202046AQI (US)
Highest AQI (US) recorded in
August63AQI (US)
Lowest AQI (US) recorded in
September36AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Saijo's annual 2026 AQI (US) (43) shows an average percentage change of -7.7% (improved AQI (US)) compared to previous years: 2020 (46), 2021 (44), 2022 (46), 2023 (47), 2024 (47), 2025 (50).