Morohongo, Saitama, Japan Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
August Air Quality Analysis
Morohongo, Saitama, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (2nd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 38 of Good air quality, showing improvement over 2024, 2023 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 2nd Aug - 3rd Aug 2025
Morohongo, Saitama, Japan
4 AM2nd Aug 2025
6 PM
3 AM3rd Aug 2025
56AQI
36AQI
51AQI
34AQI
In the last 24 hours,
Morohongo's AQI reached its highest point of 56 at 3 PM during the Day, while the lowest point, 34, was recorded at 1 AM during the Night between 2nd Aug and 3rd Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Morohongo, Saitama, Japan
29°C24/34°C
28°C25/33°C
30°C25/35°C
30°C27/34°C
30°C27/35°C
30°C26/35°C
28°C23/34°C
23°C22/23°C
24°C21/28°C
26°C23/30°C
25°C23/28°C
27°C25/32°C
28°C23/32°C
28°C25/32°C
27°C23/33°C
28°C25/34°C
30°C25/35°C
31°C26/36°C
31°C26/37°C
31°C26/37°C
31°C26/37°C
31°C26/37°C
31°C26/37°C
31°C26/37°C
31°C27/37°C
31°C26/37°C
30°C25/36°C
29°C24/35°C
27°C24/31°C
30°C24/37°C
--°C/°C
50AQI
48AQI
48AQI
46AQI
2025 Days Vs Air Quality
Morohongo, Saitama, Japan
84%
180
16%
34
Total number of days with different AQI categories in last 215 days in 2025 (150 days remaining)
Under WHO’s Safe Air Quality Limits: 84%
Health Risk Level:
Low
In 2025, 84% of 215 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
Morohongo, Saitama, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
29AQI
30AQI
26AQI
27AQI
33AQI
53AQI
28AQI
36AQI
29AQI
30AQI
27AQI
36AQI
29AQI
33AQI
34AQI
29AQI
30AQI
32AQI
44AQI
39AQI
42AQI
36AQI
47AQI
49AQI
38AQI
38AQI
34AQI
42AQI
32AQI
35AQI
31AQI
45AQI
50AQI
45AQI
39AQI
36AQI
31AQI
32AQI
31AQI
30AQI
30AQI
32AQI
40AQI
33AQI
35AQI
30AQI
42AQI
40AQI
34AQI
33AQI
32AQI
32AQI
32AQI
33AQI
34AQI
35AQI
39AQI
43AQI
50AQI
52AQI
57AQI
40AQI
40AQI
27AQI
35AQI
30AQI
43AQI
37AQI
39AQI
43AQI
50AQI
51AQI
44AQI
45AQI
27AQI
23AQI
26AQI
18AQI
26AQI
38AQI
48AQI
57AQI
60AQI
72AQI
79AQI
75AQI
62AQI
38AQI
40AQI
33AQI
31AQI
22AQI
24AQI
20AQI
31AQI
24AQI
33AQI
41AQI
29AQI
49AQI
44AQI
46AQI
36AQI
34AQI
28AQI
28AQI
45AQI
56AQI
68AQI
67AQI
46AQI
55AQI
33AQI
42AQI
45AQI
51AQI
53AQI
57AQI
40AQI
52AQI
45AQI
35AQI
32AQI
41AQI
36AQI
34AQI
27AQI
34AQI
34AQI
27AQI
23AQI
24AQI
36AQI
40AQI
42AQI
49AQI
32AQI
48AQI
46AQI
62AQI
69AQI
58AQI
53AQI
50AQI
34AQI
33AQI
33AQI
31AQI
38AQI
32AQI
23AQI
24AQI
34AQI
35AQI
30AQI
42AQI
47AQI
53AQI
60AQI
56AQI
43AQI
32AQI
46AQI
49AQI
40AQI
32AQI
39AQI
48AQI
43AQI
49AQI
49AQI
41AQI
29AQI
32AQI
31AQI
25AQI
24AQI
33AQI
35AQI
42AQI
46AQI
49AQI
50AQI
49AQI
50AQI
52AQI
57AQI
77AQI
80AQI
79AQI
63AQI
49AQI
54AQI
52AQI
40AQI
38AQI
41AQI
40AQI
38AQI
36AQI
37AQI
39AQI
41AQI
48AQI
48AQI
51AQI
47AQI
44AQI
49AQI
47AQI
36AQI
38AQI
35AQI
38AQI
35AQI
36AQI
44AQI
41AQI
39AQI
40AQI
49AQI
37AQI
No. of days
202540AQI
Highest AQI recorded in
July49AQI
Lowest AQI recorded in
January35AQI
202440AQI
Highest AQI recorded in
April54AQI
Lowest AQI recorded in
December31AQI
202344AQI
Highest AQI recorded in
April53AQI
Lowest AQI recorded in
August34AQI
202241AQI
Highest AQI recorded in
August50AQI
Lowest AQI recorded in
December29AQI
202139AQI
Highest AQI recorded in
March47AQI
Lowest AQI recorded in
December35AQI
202037AQI
Highest AQI recorded in
August50AQI
Lowest AQI recorded in
September28AQI
Most & Least Polluted Years Over the Last 6 Years
Morohongo's annual 2025 AQI (40) shows an average percentage change of 1.08% (worsened AQI) compared to previous years: 2020 (37), 2021 (39), 2022 (41), 2023 (44), 2024 (40).