Saijo, Ehime, Japan Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
July Air Quality Analysis
Saijo, Ehime, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (31st July ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 36 of Good air quality, showing improvement over 2024, 2023 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report
2025 Days Vs Air Quality
Saijo, Ehime, Japan
58%
124
40%
85
1%
3
Total number of days with different AQI categories in last 213 days in 2025 (152 days remaining)
Under WHO’s Safe Air Quality Limits: 58%
Health Risk Level:
Considerable
In 2025, 58% of 213 days were within WHO’s safe air quality limits, and 42% exceeded them. The risk of health issues is Considerable, with potential for conditions in sensitive individuals.
Annual Air Quality Insights
Saijo, Ehime, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
31AQI
38AQI
33AQI
34AQI
33AQI
47AQI
33AQI
35AQI
30AQI
28AQI
30AQI
30AQI
44AQI
48AQI
45AQI
38AQI
36AQI
33AQI
52AQI
41AQI
55AQI
59AQI
71AQI
90AQI
48AQI
48AQI
43AQI
38AQI
34AQI
44AQI
57AQI
70AQI
47AQI
54AQI
40AQI
41AQI
33AQI
39AQI
32AQI
32AQI
31AQI
36AQI
44AQI
40AQI
49AQI
36AQI
52AQI
47AQI
41AQI
41AQI
35AQI
38AQI
43AQI
37AQI
40AQI
38AQI
43AQI
76AQI
92AQI
102AQI
123AQI
60AQI
62AQI
42AQI
42AQI
39AQI
44AQI
45AQI
46AQI
54AQI
56AQI
63AQI
58AQI
44AQI
30AQI
46AQI
32AQI
43AQI
47AQI
60AQI
63AQI
71AQI
65AQI
82AQI
77AQI
96AQI
62AQI
55AQI
44AQI
43AQI
50AQI
42AQI
31AQI
36AQI
46AQI
48AQI
48AQI
43AQI
64AQI
64AQI
60AQI
65AQI
48AQI
52AQI
32AQI
50AQI
53AQI
64AQI
63AQI
53AQI
49AQI
57AQI
47AQI
43AQI
61AQI
62AQI
58AQI
50AQI
47AQI
57AQI
55AQI
42AQI
50AQI
39AQI
45AQI
37AQI
35AQI
40AQI
41AQI
40AQI
40AQI
52AQI
56AQI
62AQI
60AQI
65AQI
51AQI
53AQI
61AQI
66AQI
73AQI
49AQI
56AQI
46AQI
29AQI
40AQI
42AQI
45AQI
50AQI
45AQI
40AQI
45AQI
53AQI
35AQI
47AQI
48AQI
56AQI
61AQI
69AQI
63AQI
41AQI
48AQI
57AQI
58AQI
53AQI
35AQI
40AQI
40AQI
50AQI
52AQI
58AQI
64AQI
74AQI
58AQI
53AQI
56AQI
47AQI
53AQI
58AQI
59AQI
59AQI
60AQI
84AQI
96AQI
109AQI
89AQI
69AQI
66AQI
70AQI
76AQI
80AQI
65AQI
61AQI
54AQI
43AQI
51AQI
60AQI
50AQI
40AQI
41AQI
40AQI
39AQI
38AQI
43AQI
48AQI
35AQI
29AQI
29AQI
36AQI
39AQI
40AQI
36AQI
43AQI
45AQI
58AQI
51AQI
49AQI
53AQI
55AQI
No. of days
202551AQI
Highest AQI recorded in
March58AQI
Lowest AQI recorded in
January43AQI
202447AQI
Highest AQI recorded in
April66AQI
Lowest AQI recorded in
December34AQI
202347AQI
Highest AQI recorded in
April59AQI
Lowest AQI recorded in
August34AQI
202246AQI
Highest AQI recorded in
May59AQI
Lowest AQI recorded in
December37AQI
202144AQI
Highest AQI recorded in
June56AQI
Lowest AQI recorded in
December38AQI
202046AQI
Highest AQI recorded in
August63AQI
Lowest AQI recorded in
September36AQI
Most & Least Polluted Years Over the Last 6 Years
Saijo's annual 2025 AQI (51) shows an average percentage change of 9.8% (worsened AQI) compared to previous years: 2020 (46), 2021 (44), 2022 (46), 2023 (47), 2024 (47).
